[INFO] fetching crate currawong_core 0.5.0...
[INFO] checking currawong_core-0.5.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate currawong_core 0.5.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate currawong_core 0.5.0
[INFO] finished tweaking crates.io crate currawong_core 0.5.0
[INFO] tweaked toml for crates.io crate currawong_core 0.5.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate currawong_core 0.5.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding getrandom v0.2.16 (available: v0.3.3)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68d3f7f770f70c01b87dbbf0b12a7d001b5e8009975dbada1d02fe7c9aaf496a
[INFO] running `Command { std: "docker" "start" "-a" "68d3f7f770f70c01b87dbbf0b12a7d001b5e8009975dbada1d02fe7c9aaf496a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68d3f7f770f70c01b87dbbf0b12a7d001b5e8009975dbada1d02fe7c9aaf496a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d3f7f770f70c01b87dbbf0b12a7d001b5e8009975dbada1d02fe7c9aaf496a", kill_on_drop: false }`
[INFO] [stdout] 68d3f7f770f70c01b87dbbf0b12a7d001b5e8009975dbada1d02fe7c9aaf496a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb0c193c4ef0681d6bb1a1de1d06d0f6f1fde9894ab008b15963e6f7cc68c3ae
[INFO] running `Command { std: "docker" "start" "-a" "bb0c193c4ef0681d6bb1a1de1d06d0f6f1fde9894ab008b15963e6f7cc68c3ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking midly v0.5.3
[INFO] [stderr]     Checking currawong_core v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/signal.rs:63:33
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Signal::from_fn(move |_ctx| (rng.borrow_mut().gen::<f64>()))
[INFO] [stdout]    |                                 ^                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     Signal::from_fn(move |_ctx| (rng.borrow_mut().gen::<f64>()))
[INFO] [stdout] 63 +     Signal::from_fn(move |_ctx| rng.borrow_mut().gen::<f64>())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/signal.rs:63:33
[INFO] [stdout]    |
[INFO] [stdout] 63 |     Signal::from_fn(move |_ctx| (rng.borrow_mut().gen::<f64>()))
[INFO] [stdout]    |                                 ^                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -     Signal::from_fn(move |_ctx| (rng.borrow_mut().gen::<f64>()))
[INFO] [stdout] 63 +     Signal::from_fn(move |_ctx| rng.borrow_mut().gen::<f64>())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/builder.rs:736:28
[INFO] [stdout]     |
[INFO] [stdout] 736 |     pub fn sampler(sample: &Sample) -> SamplerBuilder {
[INFO] [stdout]     |                            ^^^^^^^     -------------- the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 736 |     pub fn sampler(sample: &Sample) -> SamplerBuilder<'_> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/builder.rs:736:28
[INFO] [stdout]     |
[INFO] [stdout] 736 |     pub fn sampler(sample: &Sample) -> SamplerBuilder {
[INFO] [stdout]     |                            ^^^^^^^     -------------- the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 736 |     pub fn sampler(sample: &Sample) -> SamplerBuilder<'_> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.88s
[INFO] running `Command { std: "docker" "inspect" "bb0c193c4ef0681d6bb1a1de1d06d0f6f1fde9894ab008b15963e6f7cc68c3ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb0c193c4ef0681d6bb1a1de1d06d0f6f1fde9894ab008b15963e6f7cc68c3ae", kill_on_drop: false }`
[INFO] [stdout] bb0c193c4ef0681d6bb1a1de1d06d0f6f1fde9894ab008b15963e6f7cc68c3ae