[INFO] fetching crate bincode-thin 1.1.2...
[INFO] checking bincode-thin-1.1.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate bincode-thin 1.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate bincode-thin 1.1.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bincode-thin 1.1.2
[INFO] finished tweaking crates.io crate bincode-thin 1.1.2
[INFO] tweaked toml for crates.io crate bincode-thin 1.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding autocfg v0.1.8 (latest: v1.3.0)
[INFO] [stderr]       Adding serde_bytes v0.10.5 (latest: v0.11.15)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87c45f6865df2f772a3b60ed4deaa9ffc7068b7f1cd600a9a9eec5c3598c0556
[INFO] running `Command { std: "docker" "start" "-a" "87c45f6865df2f772a3b60ed4deaa9ffc7068b7f1cd600a9a9eec5c3598c0556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87c45f6865df2f772a3b60ed4deaa9ffc7068b7f1cd600a9a9eec5c3598c0556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87c45f6865df2f772a3b60ed4deaa9ffc7068b7f1cd600a9a9eec5c3598c0556", kill_on_drop: false }`
[INFO] [stdout] 87c45f6865df2f772a3b60ed4deaa9ffc7068b7f1cd600a9a9eec5c3598c0556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f31f901cee20c7f40fc302d03bf7103736eb0aa7e04ce037fb029ef335e4392
[INFO] running `Command { std: "docker" "start" "-a" "5f31f901cee20c7f40fc302d03bf7103736eb0aa7e04ce037fb029ef335e4392", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling bincode-thin v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/de/mod.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |     #[cfg(has_i128)]
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 |     #[cfg(has_i128)]
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:118:19
[INFO] [stdout]     |
[INFO] [stdout] 118 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/de/mod.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let value: u8 = try!(serde::Deserialize::deserialize(self));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         try!(self.read_type::<u8>());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:143:26
[INFO] [stdout]     |
[INFO] [stdout] 143 |         visitor.visit_u8(try!(self.reader.read_u8()))
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         try!(self.read_type::<i8>());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:152:26
[INFO] [stdout]     |
[INFO] [stdout] 152 |         visitor.visit_i8(try!(self.reader.read_i8()))
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let _ = try!(self.reader.read_exact(&mut buf[..1]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:186:19
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let res = try!(
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try!(self.read_bytes(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:199:26
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:208:30
[INFO] [stdout]     |
[INFO] [stdout] 208 |         visitor.visit_string(try!(self.read_string()))
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         try!(self.read_bytes(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:215:26
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:224:32
[INFO] [stdout]     |
[INFO] [stdout] 224 |         visitor.visit_byte_buf(try!(self.read_vec()))
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:248:31
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 let idx: u8 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:250:21
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 Ok((try!(val), self))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:277:33
[INFO] [stdout]     |
[INFO] [stdout] 277 |                     let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:302:25
[INFO] [stdout]     |
[INFO] [stdout] 302 |         let value: u8 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:314:19
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:339:31
[INFO] [stdout]     |
[INFO] [stdout] 339 |                     let key = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:365:19
[INFO] [stdout]     |
[INFO] [stdout] 365 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]   --> src/ser/mod.rs:91:11
[INFO] [stdout]    |
[INFO] [stdout] 91 |     #[cfg(has_i128)]
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]   --> src/ser/mod.rs:96:11
[INFO] [stdout]    |
[INFO] [stdout] 96 |     #[cfg(has_i128)]
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/ser/mod.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/ser/mod.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         try!(self.writer.write_u8(1));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:156:19
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         try!(self.serialize_u8(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:186:19
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         try!(self.serialize_u8(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         try!(self.serialize_u8(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 337 |         try!(self.add_value(0 as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:346:9
[INFO] [stdout]     |
[INFO] [stdout] 346 |         try!(self.add_value(0 as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:358:9
[INFO] [stdout]     |
[INFO] [stdout] 358 |         try!(self.add_value(1 as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:363:19
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |         try!(self.add_value(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:396:9
[INFO] [stdout]     |
[INFO] [stdout] 396 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:394:19
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:412:9
[INFO] [stdout]     |
[INFO] [stdout] 412 |         try!(self.add_value(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 442 |         try!(self.add_value(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:56:49
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn accept<T: serde::Deserializer<'a>>(self, T) -> Self::Output;
[INFO] [stdout]    |                                                 ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn accept<T: serde::Serializer>(self, T) -> Self::Output;
[INFO] [stdout]    |                                           ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:45:53
[INFO] [stdout]    |
[INFO] [stdout] 45 |             ErrorKind::Io(ref err) => error::Error::description(err),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:86:81
[INFO] [stdout]    |
[INFO] [stdout] 86 |             ErrorKind::InvalidUtf8Encoding(ref e) => write!(fmt, "{}: {}", self.description(), e),
[INFO] [stdout]    |                                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:88:67
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 write!(fmt, "{}, expected 0 or 1, found {}", self.description(), b)
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:90:70
[INFO] [stdout]    |
[INFO] [stdout] 90 |             ErrorKind::InvalidCharEncoding => write!(fmt, "{}", self.description()),
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:92:50
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 write!(fmt, "{}, found {}", self.description(), tag)
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:94:73
[INFO] [stdout]    |
[INFO] [stdout] 94 |             ErrorKind::SequenceMustHaveLength => write!(fmt, "{}", self.description()),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:95:60
[INFO] [stdout]    |
[INFO] [stdout] 95 |             ErrorKind::SizeLimit => write!(fmt, "{}", self.description()),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/ser/mod.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 248 | impl<O: Options> SizeChecker<O> {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] 249 |     pub fn new(options: O) -> SizeChecker<O> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stdout] warning: 81 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/de/mod.rs:51:26
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:111:11
[INFO] [stdout]     |
[INFO] [stdout] 111 |     #[cfg(has_i128)]
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 |     #[cfg(has_i128)]
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:118:19
[INFO] [stdout]     |
[INFO] [stdout] 118 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/de/mod.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/de/mod.rs:94:25
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let value: u8 = try!(serde::Deserialize::deserialize(self));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stdout]     |     ----------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:68:13
[INFO] [stdout]     |
[INFO] [stdout] 68  |             try!(self.read_type::<$ty>());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:69:25
[INFO] [stdout]     |
[INFO] [stdout] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stdout]     |     --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `impl_nums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         try!(self.read_type::<u8>());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:143:26
[INFO] [stdout]     |
[INFO] [stdout] 143 |         visitor.visit_u8(try!(self.reader.read_u8()))
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         try!(self.read_type::<i8>());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:152:26
[INFO] [stdout]     |
[INFO] [stdout] 152 |         visitor.visit_i8(try!(self.reader.read_i8()))
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |         let _ = try!(self.reader.read_exact(&mut buf[..1]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:186:19
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let res = try!(
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try!(self.read_bytes(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:199:26
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:208:30
[INFO] [stdout]     |
[INFO] [stdout] 208 |         visitor.visit_string(try!(self.read_string()))
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         try!(self.read_bytes(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:215:26
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:224:32
[INFO] [stdout]     |
[INFO] [stdout] 224 |         visitor.visit_byte_buf(try!(self.read_vec()))
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:248:31
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 let idx: u8 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:250:21
[INFO] [stdout]     |
[INFO] [stdout] 250 |                 Ok((try!(val), self))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:277:33
[INFO] [stdout]     |
[INFO] [stdout] 277 |                     let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:302:25
[INFO] [stdout]     |
[INFO] [stdout] 302 |         let value: u8 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:314:19
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:339:31
[INFO] [stdout]     |
[INFO] [stdout] 339 |                     let key = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:353:29
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/de/mod.rs:365:19
[INFO] [stdout]     |
[INFO] [stdout] 365 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]   --> src/ser/mod.rs:91:11
[INFO] [stdout]    |
[INFO] [stdout] 91 |     #[cfg(has_i128)]
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]   --> src/ser/mod.rs:96:11
[INFO] [stdout]    |
[INFO] [stdout] 96 |     #[cfg(has_i128)]
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/ser/mod.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_i128`
[INFO] [stdout]    --> src/ser/mod.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |         #[cfg(not(has_i128))]
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_i128)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_i128)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         try!(self.writer.write_u8(1));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:156:19
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         try!(self.serialize_u8(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:186:19
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         try!(self.serialize_u8(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         try!(self.serialize_u8(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 337 |         try!(self.add_value(0 as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:346:9
[INFO] [stdout]     |
[INFO] [stdout] 346 |         try!(self.add_value(0 as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:358:9
[INFO] [stdout]     |
[INFO] [stdout] 358 |         try!(self.add_value(1 as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:363:19
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |         try!(self.add_value(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:396:9
[INFO] [stdout]     |
[INFO] [stdout] 396 |         try!(self.serialize_u64(len as u64));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:394:19
[INFO] [stdout]     |
[INFO] [stdout] 394 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:412:9
[INFO] [stdout]     |
[INFO] [stdout] 412 |         try!(self.add_value(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ser/mod.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 442 |         try!(self.add_value(variant_index as u8));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:56:49
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn accept<T: serde::Deserializer<'a>>(self, T) -> Self::Output;
[INFO] [stdout]    |                                                 ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn accept<T: serde::Serializer>(self, T) -> Self::Output;
[INFO] [stdout]    |                                           ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:45:53
[INFO] [stdout]    |
[INFO] [stdout] 45 |             ErrorKind::Io(ref err) => error::Error::description(err),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:86:81
[INFO] [stdout]    |
[INFO] [stdout] 86 |             ErrorKind::InvalidUtf8Encoding(ref e) => write!(fmt, "{}: {}", self.description(), e),
[INFO] [stdout]    |                                                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:88:67
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 write!(fmt, "{}, expected 0 or 1, found {}", self.description(), b)
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:90:70
[INFO] [stdout]    |
[INFO] [stdout] 90 |             ErrorKind::InvalidCharEncoding => write!(fmt, "{}", self.description()),
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:92:50
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 write!(fmt, "{}, found {}", self.description(), tag)
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:94:73
[INFO] [stdout]    |
[INFO] [stdout] 94 |             ErrorKind::SequenceMustHaveLength => write!(fmt, "{}", self.description()),
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:95:60
[INFO] [stdout]    |
[INFO] [stdout] 95 |             ErrorKind::SizeLimit => write!(fmt, "{}", self.description()),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/ser/mod.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 248 | impl<O: Options> SizeChecker<O> {
[INFO] [stdout]     | ------------------------------- associated function in this implementation
[INFO] [stdout] 249 |     pub fn new(options: O) -> SizeChecker<O> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 81 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.21s
[INFO] running `Command { std: "docker" "inspect" "5f31f901cee20c7f40fc302d03bf7103736eb0aa7e04ce037fb029ef335e4392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f31f901cee20c7f40fc302d03bf7103736eb0aa7e04ce037fb029ef335e4392", kill_on_drop: false }`
[INFO] [stdout] 5f31f901cee20c7f40fc302d03bf7103736eb0aa7e04ce037fb029ef335e4392