[INFO] fetching crate sloggers 1.0.1...
[INFO] checking sloggers-1.0.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate sloggers 1.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sloggers 1.0.1 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 sloggers 1.0.1
[INFO] finished tweaking crates.io crate sloggers 1.0.1
[INFO] tweaked toml for crates.io crate sloggers 1.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate sloggers 1.0.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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] [stdout] f6f921f24fe9b56f38a9b48fa725b891c4d7a2aad694c2e2281a0d1911526705
[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" "f6f921f24fe9b56f38a9b48fa725b891c4d7a2aad694c2e2281a0d1911526705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6f921f24fe9b56f38a9b48fa725b891c4d7a2aad694c2e2281a0d1911526705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6f921f24fe9b56f38a9b48fa725b891c4d7a2aad694c2e2281a0d1911526705", kill_on_drop: false }`
[INFO] [stdout] f6f921f24fe9b56f38a9b48fa725b891c4d7a2aad694c2e2281a0d1911526705
[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" "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] 64987d3eafb64e5e15d7e6fb6acae33eb316f3dc484700c1c5668b614e9813c7
[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" "64987d3eafb64e5e15d7e6fb6acae33eb316f3dc484700c1c5668b614e9813c7", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking libflate_lz77 v1.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking libflate v1.0.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking slog-stdlog v4.0.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]     Checking trackable v1.0.0
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking rmp-serde v0.14.3
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking sloggers v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serdeconv v0.4.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.90s
[INFO] running `Command { std: "docker" "inspect" "64987d3eafb64e5e15d7e6fb6acae33eb316f3dc484700c1c5668b614e9813c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64987d3eafb64e5e15d7e6fb6acae33eb316f3dc484700c1c5668b614e9813c7", kill_on_drop: false }`
[INFO] [stdout] 64987d3eafb64e5e15d7e6fb6acae33eb316f3dc484700c1c5668b614e9813c7