[INFO] fetching crate k12sum 0.1.4...
[INFO] checking k12sum-0.1.4 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate k12sum 0.1.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate k12sum 0.1.4 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate k12sum 0.1.4
[INFO] finished tweaking crates.io crate k12sum 0.1.4
[INFO] tweaked toml for crates.io crate k12sum 0.1.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate k12sum 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f6c8dccacb040f7cc50008be36f7541c7e90030a37f5b09b1b1358b95cac297
[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" "1f6c8dccacb040f7cc50008be36f7541c7e90030a37f5b09b1b1358b95cac297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f6c8dccacb040f7cc50008be36f7541c7e90030a37f5b09b1b1358b95cac297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f6c8dccacb040f7cc50008be36f7541c7e90030a37f5b09b1b1358b95cac297", kill_on_drop: false }`
[INFO] [stdout] 1f6c8dccacb040f7cc50008be36f7541c7e90030a37f5b09b1b1358b95cac297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3322066ebdb9ff54f4ce215161b672345538a890f22bc7fca215ad7ab3caeb9a
[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" "3322066ebdb9ff54f4ce215161b672345538a890f22bc7fca215ad7ab3caeb9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking duct v0.13.4
[INFO] [stderr]    Compiling kangarootwelve_xkcp v0.1.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking k12sum v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.34s
[INFO] running `Command { std: "docker" "inspect" "3322066ebdb9ff54f4ce215161b672345538a890f22bc7fca215ad7ab3caeb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3322066ebdb9ff54f4ce215161b672345538a890f22bc7fca215ad7ab3caeb9a", kill_on_drop: false }`
[INFO] [stdout] 3322066ebdb9ff54f4ce215161b672345538a890f22bc7fca215ad7ab3caeb9a