[INFO] cloning repository https://github.com/xymopen/chrome-session
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xymopen/chrome-session" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxymopen%2Fchrome-session", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxymopen%2Fchrome-session'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 439da15ef83e1092040a68f34c8c20f5c930d65b
[INFO] checking xymopen/chrome-session against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxymopen%2Fchrome-session" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xymopen/chrome-session on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xymopen/chrome-session
[INFO] finished tweaking git repo https://github.com/xymopen/chrome-session
[INFO] tweaked toml for git repo https://github.com/xymopen/chrome-session written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xymopen/chrome-session already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.34
[INFO] [stderr]   Downloaded serde_derive v1.0.132
[INFO] [stderr]   Downloaded serde v1.0.132
[INFO] [stderr]   Downloaded syn v1.0.82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aac8f85282f5d58209de128c6194d40ed430182103f62618d6989d2ca8f71b0d
[INFO] running `Command { std: "docker" "start" "-a" "aac8f85282f5d58209de128c6194d40ed430182103f62618d6989d2ca8f71b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aac8f85282f5d58209de128c6194d40ed430182103f62618d6989d2ca8f71b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac8f85282f5d58209de128c6194d40ed430182103f62618d6989d2ca8f71b0d", kill_on_drop: false }`
[INFO] [stdout] aac8f85282f5d58209de128c6194d40ed430182103f62618d6989d2ca8f71b0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99d2e3b7df3a00a376f65476da2f812a2cd13964007f16f058d097be1f9acf10
[INFO] running `Command { std: "docker" "start" "-a" "99d2e3b7df3a00a376f65476da2f812a2cd13964007f16f058d097be1f9acf10", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking chrome-session v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `de::Deserializer`
[INFO] [stdout]   --> src/serde_chromium_pickle/mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) use de::Deserializer;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error` and `Result`
[INFO] [stdout]   --> src/serde_chromium_pickle/mod.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use error::{Error, Result};
[INFO] [stdout]    |                 ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ser::into_writer`
[INFO] [stdout]   --> src/serde_chromium_pickle/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub use ser::into_writer;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ser::Serializer`
[INFO] [stdout]   --> src/serde_chromium_pickle/mod.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) use ser::Serializer;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::Deserializer`
[INFO] [stdout]   --> src/serde_chromium_pickle/mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) use de::Deserializer;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]   --> src/serde_chromium_pickle/mod.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use error::{Error, Result};
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ser::Serializer`
[INFO] [stdout]   --> src/serde_chromium_pickle/mod.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) use ser::Serializer;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_buffer` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn print_buffer(a: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `align_down` is never used
[INFO] [stdout]  --> src/serde_chromium_pickle/bits.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) fn align_down(size: usize, alignment: usize) -> usize {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `into_writer` is never used
[INFO] [stdout]   --> src/serde_chromium_pickle/ser.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn into_writer<'a, T>(value: &'a T, writer: &mut dyn Write) -> Result<Ok>
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize` is never used
[INFO] [stdout]  --> src/serde_chromium_pickle/helpers/cstring.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn serialize<S>(value: &CString, serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize` is never used
[INFO] [stdout]  --> src/serde_chromium_pickle/helpers/string.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn serialize<S>(value: &String, serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_ref` is never used
[INFO] [stdout]  --> src/transmute.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub unsafe fn as_ref<'a, T: Sized>(bytes: &'a [u8]) -> Option<&'a T> {
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_mut` is never used
[INFO] [stdout]   --> src/transmute.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub unsafe fn as_mut<'a, T: Sized>(bytes: &'a mut [u8]) -> Option<&'a mut T> {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_bytes_ref` is never used
[INFO] [stdout]   --> src/transmute.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub unsafe fn as_bytes_ref<'a, T: Sized>(value: &'a T) -> &'a [u8] {
[INFO] [stdout]    |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_vec` is never used
[INFO] [stdout]   --> src/transmute.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub unsafe fn from_vec<T: Sized>(bytes: Vec<u8>) -> Option<Box<T>> {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `into_vec` is never used
[INFO] [stdout]   --> src/transmute.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub unsafe fn into_vec<T: Sized>(value: Box<T>) -> Vec<u8> {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `into_writer` is never used
[INFO] [stdout]   --> src/transmute.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub unsafe fn into_writer<'a, T: Sized>(
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_buffer` is never used
[INFO] [stdout]   --> src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn print_buffer(a: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `align_down` is never used
[INFO] [stdout]  --> src/serde_chromium_pickle/bits.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) fn align_down(size: usize, alignment: usize) -> usize {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_ref` is never used
[INFO] [stdout]  --> src/transmute.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub unsafe fn as_ref<'a, T: Sized>(bytes: &'a [u8]) -> Option<&'a T> {
[INFO] [stdout]   |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_mut` is never used
[INFO] [stdout]   --> src/transmute.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub unsafe fn as_mut<'a, T: Sized>(bytes: &'a mut [u8]) -> Option<&'a mut T> {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_bytes_ref` is never used
[INFO] [stdout]   --> src/transmute.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub unsafe fn as_bytes_ref<'a, T: Sized>(value: &'a T) -> &'a [u8] {
[INFO] [stdout]    |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_vec` is never used
[INFO] [stdout]   --> src/transmute.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub unsafe fn from_vec<T: Sized>(bytes: Vec<u8>) -> Option<Box<T>> {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `into_vec` is never used
[INFO] [stdout]   --> src/transmute.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub unsafe fn into_vec<T: Sized>(value: Box<T>) -> Vec<u8> {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `into_writer` is never used
[INFO] [stdout]   --> src/transmute.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub unsafe fn into_writer<'a, T: Sized>(
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/seq/ser.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 43 | |         bool i128 u128 char str bytes none some unit unit_struct
[INFO] [stdout] 44 | |         unit_variant newtype_struct newtype_variant // seq tuple
[INFO] [stdout] 45 | |         // tuple_struct tuple_variant map struct struct_variant
[INFO] [stdout] 46 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 13 -             $(drop($arg);)*
[INFO] [stdout] 13 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `&str`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/serde_chromium_pickle/macros.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |               $(drop($arg);)*
[INFO] [stdout]    |                 ^^^^^----^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      argument has type `u32`
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/serde_chromium_pickle/ser.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | /     crate::forward_to_serialize_any! {
[INFO] [stdout] 66 | |         i128 u128 char str bytes none some unit unit_struct unit_variant
[INFO] [stdout] 67 | |         newtype_struct newtype_variant
[INFO] [stdout] 68 | |     }
[INFO] [stdout]    | |_____- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `forward_to_serialize_any_method` which comes from the expansion of the macro `crate::forward_to_serialize_any` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 27 -             $(drop($arg);)*
[INFO] [stdout] 27 +             $(let _ = $arg;)*
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "99d2e3b7df3a00a376f65476da2f812a2cd13964007f16f058d097be1f9acf10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d2e3b7df3a00a376f65476da2f812a2cd13964007f16f058d097be1f9acf10", kill_on_drop: false }`
[INFO] [stdout] 99d2e3b7df3a00a376f65476da2f812a2cd13964007f16f058d097be1f9acf10