[INFO] fetching crate docket 0.5.1...
[INFO] checking docket-0.5.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate docket 0.5.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate docket 0.5.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docket 0.5.1
[INFO] finished tweaking crates.io crate docket 0.5.1
[INFO] tweaked toml for crates.io crate docket 0.5.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate docket 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] 2bbc8f2aa1b5d7c616f91381ded80230cfd6ba7833de0db1d13d938d2b7b1c45
[INFO] running `Command { std: "docker" "start" "-a" "2bbc8f2aa1b5d7c616f91381ded80230cfd6ba7833de0db1d13d938d2b7b1c45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bbc8f2aa1b5d7c616f91381ded80230cfd6ba7833de0db1d13d938d2b7b1c45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bbc8f2aa1b5d7c616f91381ded80230cfd6ba7833de0db1d13d938d2b7b1c45", kill_on_drop: false }`
[INFO] [stdout] 2bbc8f2aa1b5d7c616f91381ded80230cfd6ba7833de0db1d13d938d2b7b1c45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61bd8226208988cba99dce27e5b89c381c7339a12076b9f1f0c3b114e4ad7600
[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" "61bd8226208988cba99dce27e5b89c381c7339a12076b9f1f0c3b114e4ad7600", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling onig_sys v69.6.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking inotify-sys v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking onig v6.1.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking plist v1.0.0
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking syntect v4.5.0
[INFO] [stderr]     Checking docket v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `Command { std: "docker" "inspect" "61bd8226208988cba99dce27e5b89c381c7339a12076b9f1f0c3b114e4ad7600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61bd8226208988cba99dce27e5b89c381c7339a12076b9f1f0c3b114e4ad7600", kill_on_drop: false }`
[INFO] [stdout] 61bd8226208988cba99dce27e5b89c381c7339a12076b9f1f0c3b114e4ad7600