[INFO] fetching crate workmn 0.0.5...
[INFO] checking workmn-0.0.5 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate workmn 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate workmn 0.0.5 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 workmn 0.0.5
[INFO] finished tweaking crates.io crate workmn 0.0.5
[INFO] tweaked toml for crates.io crate workmn 0.0.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate workmn 0.0.5 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 56d02a8ffdb6484e9e291e07cb3490a57a54752e3000604f1268c31023d5df4d
[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" "56d02a8ffdb6484e9e291e07cb3490a57a54752e3000604f1268c31023d5df4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56d02a8ffdb6484e9e291e07cb3490a57a54752e3000604f1268c31023d5df4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56d02a8ffdb6484e9e291e07cb3490a57a54752e3000604f1268c31023d5df4d", kill_on_drop: false }`
[INFO] [stdout] 56d02a8ffdb6484e9e291e07cb3490a57a54752e3000604f1268c31023d5df4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 513d22deb3bf3ad8c85d344af894cd6254133a25e9f87cb12f9463ccf13b078f
[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" "513d22deb3bf3ad8c85d344af894cd6254133a25e9f87cb12f9463ccf13b078f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking shellexpand v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking globwalk v0.7.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking human-panic v1.0.1
[INFO] [stderr]     Checking workmn v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.20s
[INFO] running `Command { std: "docker" "inspect" "513d22deb3bf3ad8c85d344af894cd6254133a25e9f87cb12f9463ccf13b078f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "513d22deb3bf3ad8c85d344af894cd6254133a25e9f87cb12f9463ccf13b078f", kill_on_drop: false }`
[INFO] [stdout] 513d22deb3bf3ad8c85d344af894cd6254133a25e9f87cb12f9463ccf13b078f