[INFO] fetching crate k12sum 0.1.4...
[INFO] checking k12sum-0.1.4 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate k12sum 0.1.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate k12sum 0.1.4 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-14/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] feff794c893fe8535232ac93d5f9b996cc2c6baaa876625f8f9d53955962e738
[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" "feff794c893fe8535232ac93d5f9b996cc2c6baaa876625f8f9d53955962e738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feff794c893fe8535232ac93d5f9b996cc2c6baaa876625f8f9d53955962e738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feff794c893fe8535232ac93d5f9b996cc2c6baaa876625f8f9d53955962e738", kill_on_drop: false }`
[INFO] [stdout] feff794c893fe8535232ac93d5f9b996cc2c6baaa876625f8f9d53955962e738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9acaea7b5aaaff7ac02e909eff5e822209cf4e7aae90ec45a27cb1f1f39c262e
[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" "9acaea7b5aaaff7ac02e909eff5e822209cf4e7aae90ec45a27cb1f1f39c262e", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]    Compiling kangarootwelve_xkcp v0.1.4
[INFO] [stderr]     Checking shared_child v0.3.4
[INFO] [stderr]     Checking anyhow v1.0.31
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking duct v0.13.4
[INFO] [stderr]     Checking clap v2.33.1
[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 13.87s
[INFO] running `Command { std: "docker" "inspect" "9acaea7b5aaaff7ac02e909eff5e822209cf4e7aae90ec45a27cb1f1f39c262e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9acaea7b5aaaff7ac02e909eff5e822209cf4e7aae90ec45a27cb1f1f39c262e", kill_on_drop: false }`
[INFO] [stdout] 9acaea7b5aaaff7ac02e909eff5e822209cf4e7aae90ec45a27cb1f1f39c262e