[INFO] fetching crate bufchan 0.1.0...
[INFO] checking bufchan-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate bufchan 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bufchan 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bufchan 0.1.0
[INFO] finished tweaking crates.io crate bufchan 0.1.0
[INFO] tweaked toml for crates.io crate bufchan 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 84 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.8.4 (latest: v0.11.5)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (latest: v0.6.5)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (latest: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded divan v0.1.14
[INFO] [stderr]   Downloaded crossbeam v0.8.4
[INFO] [stderr]   Downloaded divan-macros v0.1.14
[INFO] [stderr]   Downloaded kanal v0.1.0-pre8
[INFO] [stderr]   Downloaded condtype v1.3.0
[INFO] [stderr]   Downloaded quickcheck_macros v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04d51ee4295166c0eb791ae0d675d667da26273cbdae75125073711a27ee0f0f
[INFO] running `Command { std: "docker" "start" "-a" "04d51ee4295166c0eb791ae0d675d667da26273cbdae75125073711a27ee0f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d51ee4295166c0eb791ae0d675d667da26273cbdae75125073711a27ee0f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d51ee4295166c0eb791ae0d675d667da26273cbdae75125073711a27ee0f0f", kill_on_drop: false }`
[INFO] [stdout] 04d51ee4295166c0eb791ae0d675d667da26273cbdae75125073711a27ee0f0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd91e4a5b24a589357c14e14b332d4feb86026fd44dc6e5a6d6965959e4f4bf
[INFO] running `Command { std: "docker" "start" "-a" "4cd91e4a5b24a589357c14e14b332d4feb86026fd44dc6e5a6d6965959e4f4bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.35
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking condtype v1.3.0
[INFO] [stderr]     Checking regex-lite v0.1.6
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking kanal v0.1.0-pre8
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]     Checking bufchan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking terminal_size v0.3.0
[INFO] [stderr]     Checking clap_builder v4.5.15
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking clap v4.5.16
[INFO] [stderr]    Compiling divan-macros v0.1.14
[INFO] [stderr]     Checking divan v0.1.14
[INFO] [stdout] warning: field `arr` is never read
[INFO] [stdout]   --> src/bench.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     struct Big {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 71 |         arr: [u32; 64],
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `arr` is never read
[INFO] [stdout]    --> src/bench.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     struct Big {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] 117 |         arr: [u32; 6],
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.81s
[INFO] running `Command { std: "docker" "inspect" "4cd91e4a5b24a589357c14e14b332d4feb86026fd44dc6e5a6d6965959e4f4bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd91e4a5b24a589357c14e14b332d4feb86026fd44dc6e5a6d6965959e4f4bf", kill_on_drop: false }`
[INFO] [stdout] 4cd91e4a5b24a589357c14e14b332d4feb86026fd44dc6e5a6d6965959e4f4bf