[INFO] fetching crate tree-buf 0.10.0...
[INFO] testing tree-buf-0.10.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate tree-buf 0.10.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate tree-buf 0.10.0
[INFO] finished tweaking crates.io crate tree-buf 0.10.0
[INFO] tweaked toml for crates.io crate tree-buf 0.10.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-buf 0.10.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 96 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[INFO] [stderr]       Adding defer v0.1.0 (available: v0.2.1)
[INFO] [stderr]       Adding firestorm v0.3.1 (available: v0.5.1)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aabc518553a255dea9255326dd18570d83c4b367f5ce0bb146986f55266d23e2
[INFO] running `Command { std: "docker" "start" "-a" "aabc518553a255dea9255326dd18570d83c4b367f5ce0bb146986f55266d23e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aabc518553a255dea9255326dd18570d83c4b367f5ce0bb146986f55266d23e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aabc518553a255dea9255326dd18570d83c4b367f5ce0bb146986f55266d23e2", kill_on_drop: false }`
[INFO] [stdout] aabc518553a255dea9255326dd18570d83c4b367f5ce0bb146986f55266d23e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba1228071d301bf2db7291f00b8ba4abb8884a1f0bd4b24c6b84614038f52278
[INFO] running `Command { std: "docker" "start" "-a" "ba1228071d301bf2db7291f00b8ba4abb8884a1f0bd4b24c6b84614038f52278", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling firestorm v0.3.1
[INFO] [stderr]    Compiling gibbon v0.1.3
[INFO] [stderr]    Compiling transmute v0.1.1
[INFO] [stderr]    Compiling defer v0.1.0
[INFO] [stderr]    Compiling simple-16 v0.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling zigzag v0.1.0
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling coercible_errors v0.1.4
[INFO] [stderr]    Compiling tree-buf-macros v0.10.0
[INFO] [stderr]    Compiling tree-buf v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `tests`
[INFO] [stdout]   --> src/internal/encodings/delta.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg(tests)]
[INFO] [stdout]    |       ^^^^^ help: there is a config with a similar name: `test`
[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(tests)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tests)");` 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: unused imports: `array_fixed::*`, `boolean::*`, `float::*`, `integer::*`, and `tuple::*`
[INFO] [stdout]   --> src/internal/types/mod.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | ...ay::*, array_fixed::*, boolean::*, bytes::*, float::*, hashmap::*, ignore::*, integer::*, nullable::*, string::*, tuple::*};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^  ^^^^^^^^^^            ^^^^^^^^                         ^^^^^^^^^^                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on macro defs
[INFO] [stdout]  --> src/internal/branch/mod.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[macro_use]` can be applied to crates, extern crates, and modules
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |             if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stdout]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |             if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stdout]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 | / impl_lowerable!(
[INFO] [stdout] 294 | |     u32,
[INFO] [stdout] 295 | |     encode_u32,
[INFO] [stdout] 296 | |     fast_size_for_u32,
[INFO] [stdout] ...   |
[INFO] [stdout] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stdout] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 | / impl_lowerable!(
[INFO] [stdout] 294 | |     u32,
[INFO] [stdout] 295 | |     encode_u32,
[INFO] [stdout] 296 | |     fast_size_for_u32,
[INFO] [stdout] ...   |
[INFO] [stdout] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stdout] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 | / impl_lowerable!(
[INFO] [stdout] 304 | |     u16,
[INFO] [stdout] 305 | |     encode_u16,
[INFO] [stdout] 306 | |     fast_size_for_u16,
[INFO] [stdout] ...   |
[INFO] [stdout] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stdout] 312 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 | / impl_lowerable!(
[INFO] [stdout] 304 | |     u16,
[INFO] [stdout] 305 | |     encode_u16,
[INFO] [stdout] 306 | |     fast_size_for_u16,
[INFO] [stdout] ...   |
[INFO] [stdout] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stdout] 312 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.00s
[INFO] running `Command { std: "docker" "inspect" "ba1228071d301bf2db7291f00b8ba4abb8884a1f0bd4b24c6b84614038f52278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba1228071d301bf2db7291f00b8ba4abb8884a1f0bd4b24c6b84614038f52278", kill_on_drop: false }`
[INFO] [stdout] ba1228071d301bf2db7291f00b8ba4abb8884a1f0bd4b24c6b84614038f52278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2abc4da196080380332ebe6e04ed62ed7229fcd2b2216af751665768e9819a48
[INFO] running `Command { std: "docker" "start" "-a" "2abc4da196080380332ebe6e04ed62ed7229fcd2b2216af751665768e9819a48", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tree-buf-macros v0.10.0
[INFO] [stderr]    Compiling tree-buf v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `tests`
[INFO] [stdout]   --> src/internal/encodings/delta.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg(tests)]
[INFO] [stdout]    |       ^^^^^ help: there is a config with a similar name: `test`
[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(tests)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tests)");` 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: unused imports: `array_fixed::*`, `boolean::*`, `float::*`, `integer::*`, and `tuple::*`
[INFO] [stdout]   --> src/internal/types/mod.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | ...ay::*, array_fixed::*, boolean::*, bytes::*, float::*, hashmap::*, ignore::*, integer::*, nullable::*, string::*, tuple::*};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^  ^^^^^^^^^^            ^^^^^^^^                         ^^^^^^^^^^                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on macro defs
[INFO] [stdout]  --> src/internal/branch/mod.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[macro_use]` can be applied to crates, extern crates, and modules
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |             if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stdout]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |             if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stdout]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 | / impl_lowerable!(
[INFO] [stdout] 294 | |     u32,
[INFO] [stdout] 295 | |     encode_u32,
[INFO] [stdout] 296 | |     fast_size_for_u32,
[INFO] [stdout] ...   |
[INFO] [stdout] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stdout] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 | / impl_lowerable!(
[INFO] [stdout] 294 | |     u32,
[INFO] [stdout] 295 | |     encode_u32,
[INFO] [stdout] 296 | |     fast_size_for_u32,
[INFO] [stdout] ...   |
[INFO] [stdout] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stdout] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 | / impl_lowerable!(
[INFO] [stdout] 304 | |     u16,
[INFO] [stdout] 305 | |     encode_u16,
[INFO] [stdout] 306 | |     fast_size_for_u16,
[INFO] [stdout] ...   |
[INFO] [stdout] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stdout] 312 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 | / impl_lowerable!(
[INFO] [stdout] 304 | |     u16,
[INFO] [stdout] 305 | |     encode_u16,
[INFO] [stdout] 306 | |     fast_size_for_u16,
[INFO] [stdout] ...   |
[INFO] [stdout] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stdout] 312 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `y` is never read
[INFO] [stdout]   --> tests/schema_mismatches.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub struct Y {
[INFO] [stdout]    |                - field in this struct
[INFO] [stdout] 29 |         y: u64,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Y` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `tests`
[INFO] [stdout]   --> src/internal/encodings/delta.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg(tests)]
[INFO] [stdout]    |       ^^^^^ help: there is a config with a similar name: `test`
[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(tests)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tests)");` 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: unused imports: `array_fixed::*`, `boolean::*`, `float::*`, `integer::*`, and `tuple::*`
[INFO] [stdout]   --> src/internal/types/mod.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | ...ay::*, array_fixed::*, boolean::*, bytes::*, float::*, hashmap::*, ignore::*, integer::*, nullable::*, string::*, tuple::*};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^  ^^^^^^^^^^            ^^^^^^^^                         ^^^^^^^^^^                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on macro defs
[INFO] [stdout]  --> src/internal/branch/mod.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[macro_use]` can be applied to crates, extern crates, and modules
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |             if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stdout]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |             if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stdout]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 | / impl_lowerable!(
[INFO] [stdout] 294 | |     u32,
[INFO] [stdout] 295 | |     encode_u32,
[INFO] [stdout] 296 | |     fast_size_for_u32,
[INFO] [stdout] ...   |
[INFO] [stdout] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stdout] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 | / impl_lowerable!(
[INFO] [stdout] 294 | |     u32,
[INFO] [stdout] 295 | |     encode_u32,
[INFO] [stdout] 296 | |     fast_size_for_u32,
[INFO] [stdout] ...   |
[INFO] [stdout] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stdout] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:219:16
[INFO] [stdout]     |
[INFO] [stdout] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 | / impl_lowerable!(
[INFO] [stdout] 304 | |     u16,
[INFO] [stdout] 305 | |     encode_u16,
[INFO] [stdout] 306 | |     fast_size_for_u16,
[INFO] [stdout] ...   |
[INFO] [stdout] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stdout] 312 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/internal/types/integer.rs:254:16
[INFO] [stdout]     |
[INFO] [stdout] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 | / impl_lowerable!(
[INFO] [stdout] 304 | |     u16,
[INFO] [stdout] 305 | |     encode_u16,
[INFO] [stdout] 306 | |     fast_size_for_u16,
[INFO] [stdout] ...   |
[INFO] [stdout] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stdout] 312 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 33.65s
[INFO] running `Command { std: "docker" "inspect" "2abc4da196080380332ebe6e04ed62ed7229fcd2b2216af751665768e9819a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2abc4da196080380332ebe6e04ed62ed7229fcd2b2216af751665768e9819a48", kill_on_drop: false }`
[INFO] [stdout] 2abc4da196080380332ebe6e04ed62ed7229fcd2b2216af751665768e9819a48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3185270a7c6eb3de76ae4bfa66ed62292b8c192971779621453ef8257ec15235
[INFO] running `Command { std: "docker" "start" "-a" "3185270a7c6eb3de76ae4bfa66ed62292b8c192971779621453ef8257ec15235", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `tests`
[INFO] [stderr]   --> src/internal/encodings/delta.rs:25:7
[INFO] [stderr]    |
[INFO] [stderr] 25 | #[cfg(tests)]
[INFO] [stderr]    |       ^^^^^ help: there is a config with a similar name: `test`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tests)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tests)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `array_fixed::*`, `boolean::*`, `float::*`, `integer::*`, and `tuple::*`
[INFO] [stderr]   --> src/internal/types/mod.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 | ...ay::*, array_fixed::*, boolean::*, bytes::*, float::*, hashmap::*, ignore::*, integer::*, nullable::*, string::*, tuple::*};
[INFO] [stderr]    |           ^^^^^^^^^^^^^^  ^^^^^^^^^^            ^^^^^^^^                         ^^^^^^^^^^                          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[macro_use]` attribute cannot be used on macro defs
[INFO] [stderr]  --> src/internal/branch/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = help: `#[macro_use]` can be applied to crates, extern crates, and modules
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/internal/types/integer.rs:219:16
[INFO] [stderr]     |
[INFO] [stderr] 219 |             if let Ok(lower_max) = lower_max {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stderr]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/internal/types/integer.rs:254:16
[INFO] [stderr]     |
[INFO] [stderr] 254 |             if let Ok(lower_max) = lower_max {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 292 | impl_lowerable!(u64, encode_u64, fast_size_for_u64, u32, encode_u32, fast_size_for_u32, (u16), (PrefixVarIntCompressor));
[INFO] [stderr]     | ------------------------------------------------------------------------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/internal/types/integer.rs:219:16
[INFO] [stderr]     |
[INFO] [stderr] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 293 | / impl_lowerable!(
[INFO] [stderr] 294 | |     u32,
[INFO] [stderr] 295 | |     encode_u32,
[INFO] [stderr] 296 | |     fast_size_for_u32,
[INFO] [stderr] ...   |
[INFO] [stderr] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stderr] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/internal/types/integer.rs:254:16
[INFO] [stderr]     |
[INFO] [stderr] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 293 | / impl_lowerable!(
[INFO] [stderr] 294 | |     u32,
[INFO] [stderr] 295 | |     encode_u32,
[INFO] [stderr] 296 | |     fast_size_for_u32,
[INFO] [stderr] ...   |
[INFO] [stderr] 301 | |     (Simple16Compressor<u32>, DeltaZigZagCompressor, PrefixVarIntCompressor)
[INFO] [stderr] 302 | | ); // TODO: Consider adding Fixed.
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/internal/types/integer.rs:219:16
[INFO] [stderr]     |
[INFO] [stderr] 219 |               if let Ok(lower_max) = lower_max {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 303 | / impl_lowerable!(
[INFO] [stderr] 304 | |     u16,
[INFO] [stderr] 305 | |     encode_u16,
[INFO] [stderr] 306 | |     fast_size_for_u16,
[INFO] [stderr] ...   |
[INFO] [stderr] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stderr] 312 | | );
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/internal/types/integer.rs:254:16
[INFO] [stderr]     |
[INFO] [stderr] 254 |               if let Ok(lower_max) = lower_max {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 303 | / impl_lowerable!(
[INFO] [stderr] 304 | |     u16,
[INFO] [stderr] 305 | |     encode_u16,
[INFO] [stderr] 306 | |     fast_size_for_u16,
[INFO] [stderr] ...   |
[INFO] [stderr] 311 | |     (Simple16Compressor<u16>, PrefixVarIntCompressor)
[INFO] [stderr] 312 | | );
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: this warning originates in the macro `impl_lowerable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `tree-buf` (lib) generated 9 warnings (run `cargo fix --lib -p tree-buf` to apply 2 suggestions)
[INFO] [stderr] warning: field `y` is never read
[INFO] [stderr]   --> tests/schema_mismatches.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub struct Y {
[INFO] [stderr]    |                - field in this struct
[INFO] [stderr] 29 |         y: u64,
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Y` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tree-buf` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr] warning: `tree-buf` (test "schema_mismatches") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_buf-0ea16263054e3fed)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test internal::branch::tests::all_root_type_ids ... ok
[INFO] [stdout] test internal::encodings::packed_bool::tests::round_trip_packed_bool ... ok
[INFO] [stdout] test internal::buffer::tests::can_push_to_capacity ... ok
[INFO] [stdout] test internal::buffer::tests::deref ... ok
[INFO] [stdout] test internal::branch::tests::all_array_type_ids ... ok
[INFO] [stdout] test internal::buffer::tests::can_extend ... ok
[INFO] [stdout] test internal::encodings::varint::tests::test_suffix ... ok
[INFO] [stdout] test internal::encodings::varint::tests::test_prefix ... ok
[INFO] [stderr]      Running tests/enums.rs (/opt/rustwide/target/debug/deps/enums-1f5c1432dacc79c4)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test void_value ... ok
[INFO] [stdout] test unnamed_field_one_variant ... ok
[INFO] [stdout] test selects_correct_discriminant ... ok
[INFO] [stdout] test unused_variations_do_not_affect_size ... ok
[INFO] [stdout] test pub_vis ... ok
[INFO] [stdout] test mixed_void_and_single ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/error_sizes.rs (/opt/rustwide/target/debug/deps/error_sizes-af32988941744b31)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/round_trip.rs (/opt/rustwide/target/debug/deps/round_trip-0db07d58b1686234)
[INFO] [stdout] test tuples_reduce_error_size ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test broken_gorilla ... ignored
[INFO] [stdout] test conversions ... ok
[INFO] [stdout] test delta_prefix_var ... ok
[INFO] [stdout] test fixed_arrays ... ok
[INFO] [stdout] test bools_root ... ok
[INFO] [stdout] test array1 ... ok
[INFO] [stdout] test bool_array ... ok
[INFO] [stdout] test float32_vec ... ok
[INFO] [stdout] test float64_vec ... ok
[INFO] [stdout] test broken_int ... ok
[INFO] [stdout] test int_vec ... ok
[INFO] [stdout] test array_tuple ... ok
[INFO] [stdout] test map_1_root ... ok
[INFO] [stdout] test enum_with_vec ... ok
[INFO] [stdout] test maps_void ... ok
[INFO] [stdout] test nested_strings_using_rle ... ok
[INFO] [stdout] test nested_float_vec ... ok
[INFO] [stdout] test lossy_f64_vec ... ok
[INFO] [stdout] test int_to_bool_nested ... ok
[INFO] [stdout] test nullable_array ... ok
[INFO] [stdout] test ignores ... ok
[INFO] [stdout] test map_n_root ... ok
[INFO] [stdout] test long_bool_runs ... ok
[INFO] [stdout] test item_vec ... ok
[INFO] [stdout] test opts_root ... ok
[INFO] [stdout] test small_structs ... ok
[INFO] [stdout] test visibility_modifiers ... ok
[INFO] [stdout] test various_types ... ok
[INFO] [stdout] test strings_using_dictionary ... ok
[INFO] [stdout] test item ... ok
[INFO] [stdout] test maps_array ... ok
[INFO] [stdout] test large_structs ... ok
[INFO] [stdout] test ints_root ... ok
[INFO] [stdout] test map_0_root ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/schema_migrations.rs (/opt/rustwide/target/debug/deps/schema_migrations-86173f01b876a342)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test canonical_idents_compatible ... ok
[INFO] [stdout] test fixed_array_to_vec ... ok
[INFO] [stdout] test add_option_defaults_to_none ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/schema_mismatches.rs (/opt/rustwide/target/debug/deps/schema_mismatches-49c93e583aa63ac5)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test mismatched_root ... ok
[INFO] [stdout] test missnamed_obj_field ... ok
[INFO] [stdout] test wrong_tuple_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_buf
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3185270a7c6eb3de76ae4bfa66ed62292b8c192971779621453ef8257ec15235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3185270a7c6eb3de76ae4bfa66ed62292b8c192971779621453ef8257ec15235", kill_on_drop: false }`
[INFO] [stdout] 3185270a7c6eb3de76ae4bfa66ed62292b8c192971779621453ef8257ec15235
