[INFO] fetching crate arrayref 0.3.6...
[INFO] checking arrayref-0.3.6 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate arrayref 0.3.6 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate arrayref 0.3.6 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arrayref 0.3.6
[INFO] finished tweaking crates.io crate arrayref 0.3.6
[INFO] tweaked toml for crates.io crate arrayref 0.3.6 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate arrayref 0.3.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdbc1ff9058d2cc6f4e4c94750869f0ff9d451971c0685b54cba100a790bc8cd
[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" "bdbc1ff9058d2cc6f4e4c94750869f0ff9d451971c0685b54cba100a790bc8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdbc1ff9058d2cc6f4e4c94750869f0ff9d451971c0685b54cba100a790bc8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdbc1ff9058d2cc6f4e4c94750869f0ff9d451971c0685b54cba100a790bc8cd", kill_on_drop: false }`
[INFO] [stdout] bdbc1ff9058d2cc6f4e4c94750869f0ff9d451971c0685b54cba100a790bc8cd
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 451cec3d8f54589b060c51a1959a46568a66a430d7a2e7c88cd4cadb0c56fce1
[INFO] running `Command { std: "docker" "start" "-a" "451cec3d8f54589b060c51a1959a46568a66a430d7a2e7c88cd4cadb0c56fce1", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking termcolor v1.0.1
[INFO] [stderr]     Checking arrayref v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking env_logger v0.5.12
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.59s
[INFO] running `Command { std: "docker" "inspect" "451cec3d8f54589b060c51a1959a46568a66a430d7a2e7c88cd4cadb0c56fce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451cec3d8f54589b060c51a1959a46568a66a430d7a2e7c88cd4cadb0c56fce1", kill_on_drop: false }`
[INFO] [stdout] 451cec3d8f54589b060c51a1959a46568a66a430d7a2e7c88cd4cadb0c56fce1