[INFO] cloning repository https://github.com/peter-lyons-kehl/zerocopy-vec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peter-lyons-kehl/zerocopy-vec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-lyons-kehl%2Fzerocopy-vec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-lyons-kehl%2Fzerocopy-vec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f251802cc0729625ad4f45dd4cd63c7133b245e
[INFO] checking peter-lyons-kehl/zerocopy-vec against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeter-lyons-kehl%2Fzerocopy-vec" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/peter-lyons-kehl/zerocopy-vec
[INFO] finished tweaking git repo https://github.com/peter-lyons-kehl/zerocopy-vec
[INFO] tweaked toml for git repo https://github.com/peter-lyons-kehl/zerocopy-vec written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/peter-lyons-kehl/zerocopy-vec on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/peter-lyons-kehl/zerocopy-vec 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0221bcb67e27ad653e11d1b5812c9e00171ea1bd84e9d3006f631c45db105608
[INFO] running `Command { std: "docker" "start" "-a" "0221bcb67e27ad653e11d1b5812c9e00171ea1bd84e9d3006f631c45db105608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0221bcb67e27ad653e11d1b5812c9e00171ea1bd84e9d3006f631c45db105608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0221bcb67e27ad653e11d1b5812c9e00171ea1bd84e9d3006f631c45db105608", kill_on_drop: false }`
[INFO] [stdout] 0221bcb67e27ad653e11d1b5812c9e00171ea1bd84e9d3006f631c45db105608
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c25ae751c92efac5b70a81ae00d467d3b5cbe37a5ddc83f852a5391bf4cb7d35
[INFO] running `Command { std: "docker" "start" "-a" "c25ae751c92efac5b70a81ae00d467d3b5cbe37a5ddc83f852a5391bf4cb7d35", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.13
[INFO] [stderr]     Checking zerocopy-vec v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `u8s`
[INFO] [stdout]    --> src/lib.rs:238:13
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let u8s = if false {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_u8s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "c25ae751c92efac5b70a81ae00d467d3b5cbe37a5ddc83f852a5391bf4cb7d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c25ae751c92efac5b70a81ae00d467d3b5cbe37a5ddc83f852a5391bf4cb7d35", kill_on_drop: false }`
[INFO] [stdout] c25ae751c92efac5b70a81ae00d467d3b5cbe37a5ddc83f852a5391bf4cb7d35