[INFO] fetching crate C4lc 1.0.0...
[INFO] checking C4lc-1.0.0 against try#0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef for pr-147859
[INFO] extracting crate C4lc 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate C4lc 1.0.0
[INFO] finished tweaking crates.io crate C4lc 1.0.0
[INFO] tweaked toml for crates.io crate C4lc 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate C4lc 1.0.0 on toolchain 0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate C4lc 1.0.0 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" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0107b06f48772bc4924988f0c684f5e1418b47d815c5894956cfb53a51a978ae
[INFO] running `Command { std: "docker" "start" "-a" "0107b06f48772bc4924988f0c684f5e1418b47d815c5894956cfb53a51a978ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0107b06f48772bc4924988f0c684f5e1418b47d815c5894956cfb53a51a978ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0107b06f48772bc4924988f0c684f5e1418b47d815c5894956cfb53a51a978ae", kill_on_drop: false }`
[INFO] [stdout] 0107b06f48772bc4924988f0c684f5e1418b47d815c5894956cfb53a51a978ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0269aeccce4fd29ce9ad0ebd47a62e584d7e25ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15c8f03a180dccc6e02650974c87f1da80b9016f6faa315a9fc40a258b010cac
[INFO] running `Command { std: "docker" "start" "-a" "15c8f03a180dccc6e02650974c87f1da80b9016f6faa315a9fc40a258b010cac", kill_on_drop: false }`
[INFO] [stderr]     Checking C4lc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `C4lc` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `c4lc`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "15c8f03a180dccc6e02650974c87f1da80b9016f6faa315a9fc40a258b010cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c8f03a180dccc6e02650974c87f1da80b9016f6faa315a9fc40a258b010cac", kill_on_drop: false }`
[INFO] [stdout] 15c8f03a180dccc6e02650974c87f1da80b9016f6faa315a9fc40a258b010cac