[INFO] fetching crate ergo 0.0.5...
[INFO] checking ergo-0.0.5 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate ergo 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ergo 0.0.5 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 ergo 0.0.5
[INFO] finished tweaking crates.io crate ergo 0.0.5
[INFO] tweaked toml for crates.io crate ergo 0.0.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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] c4a2c13e888eaaa23afdcb473b503167cb28792ef6d4bd5f8d90f74c33f4b2fe
[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" "c4a2c13e888eaaa23afdcb473b503167cb28792ef6d4bd5f8d90f74c33f4b2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4a2c13e888eaaa23afdcb473b503167cb28792ef6d4bd5f8d90f74c33f4b2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a2c13e888eaaa23afdcb473b503167cb28792ef6d4bd5f8d90f74c33f4b2fe", kill_on_drop: false }`
[INFO] [stdout] c4a2c13e888eaaa23afdcb473b503167cb28792ef6d4bd5f8d90f74c33f4b2fe
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4bf6091e69cc7c2c30ab7331e03099e76a357eab346a10ffad52f2cf03281c1d
[INFO] running `Command { std: "docker" "start" "-a" "4bf6091e69cc7c2c30ab7331e03099e76a357eab346a10ffad52f2cf03281c1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking std_prelude v0.2.12
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking taken v0.1.1
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking stfu8 v0.2.4
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking shellexpand v1.1.1
[INFO] [stderr]     Checking tar v0.4.32
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking crossbeam-channel v0.1.3
[INFO] [stderr]     Checking ergo_sync v0.1.0
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]     Checking ergo_sys v0.0.1
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking erased-serde v0.3.13
[INFO] [stderr]     Checking ron v0.1.7
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking path_abs v0.4.1
[INFO] [stderr]     Checking ergo_fs v0.2.0
[INFO] [stderr]     Checking ergo_std v0.0.3
[INFO] [stderr]     Checking configure v0.1.1
[INFO] [stderr]     Checking ergo_config v0.0.1
[INFO] [stderr]     Checking ergo v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.80s
[INFO] running `Command { std: "docker" "inspect" "4bf6091e69cc7c2c30ab7331e03099e76a357eab346a10ffad52f2cf03281c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf6091e69cc7c2c30ab7331e03099e76a357eab346a10ffad52f2cf03281c1d", kill_on_drop: false }`
[INFO] [stdout] 4bf6091e69cc7c2c30ab7331e03099e76a357eab346a10ffad52f2cf03281c1d