[INFO] fetching crate mp2c 0.1.2...
[INFO] checking mp2c-0.1.2 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate mp2c 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mp2c 0.1.2 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mp2c 0.1.2
[INFO] finished tweaking crates.io crate mp2c 0.1.2
[INFO] tweaked toml for crates.io crate mp2c 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", 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] 48e9003c23fc2eac3ece43be36418669eab17e3af8ffe326fbdadfc564a22ed3
[INFO] running `Command { std: "docker" "start" "-a" "48e9003c23fc2eac3ece43be36418669eab17e3af8ffe326fbdadfc564a22ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48e9003c23fc2eac3ece43be36418669eab17e3af8ffe326fbdadfc564a22ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48e9003c23fc2eac3ece43be36418669eab17e3af8ffe326fbdadfc564a22ed3", kill_on_drop: false }`
[INFO] [stdout] 48e9003c23fc2eac3ece43be36418669eab17e3af8ffe326fbdadfc564a22ed3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+90442458ac46b1d5eed752c316da25450f67285b" "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] 3cd3005c1c242e973779bfc50c47f0ef19559b469e478c411c1c657240a225fc
[INFO] running `Command { std: "docker" "start" "-a" "3cd3005c1c242e973779bfc50c47f0ef19559b469e478c411c1c657240a225fc", kill_on_drop: false }`
[INFO] [stderr]     Checking mp2c v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "3cd3005c1c242e973779bfc50c47f0ef19559b469e478c411c1c657240a225fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd3005c1c242e973779bfc50c47f0ef19559b469e478c411c1c657240a225fc", kill_on_drop: false }`
[INFO] [stdout] 3cd3005c1c242e973779bfc50c47f0ef19559b469e478c411c1c657240a225fc