[INFO] fetching crate yamlf 0.0.1...
[INFO] checking yamlf-0.0.1 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate yamlf 0.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate yamlf 0.0.1 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yamlf 0.0.1
[INFO] finished tweaking crates.io crate yamlf 0.0.1
[INFO] tweaked toml for crates.io crate yamlf 0.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ec95ab50c8c4a4a648e709ad6472ec66dc7f21c037ae7634123bf919819dd3d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4ec95ab50c8c4a4a648e709ad6472ec66dc7f21c037ae7634123bf919819dd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ec95ab50c8c4a4a648e709ad6472ec66dc7f21c037ae7634123bf919819dd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec95ab50c8c4a4a648e709ad6472ec66dc7f21c037ae7634123bf919819dd3d", kill_on_drop: false }`
[INFO] [stdout] 4ec95ab50c8c4a4a648e709ad6472ec66dc7f21c037ae7634123bf919819dd3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0657b3162e79d643a2f7a38b04744b4c98d11d79f1a6f35d3d3fbc2fa0fde275
[INFO] running `Command { std: "docker" "start" "-a" "0657b3162e79d643a2f7a38b04744b4c98d11d79f1a6f35d3d3fbc2fa0fde275", kill_on_drop: false }`
[INFO] [stderr]     Checking yamlf v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "0657b3162e79d643a2f7a38b04744b4c98d11d79f1a6f35d3d3fbc2fa0fde275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0657b3162e79d643a2f7a38b04744b4c98d11d79f1a6f35d3d3fbc2fa0fde275", kill_on_drop: false }`
[INFO] [stdout] 0657b3162e79d643a2f7a38b04744b4c98d11d79f1a6f35d3d3fbc2fa0fde275