[INFO] fetching crate ergo 0.0.5...
[INFO] checking ergo-0.0.5 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate ergo 0.0.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ergo 0.0.5 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6d87d63ce093e6c16c71df722c4608162081245e0e6546edd67f6daa7ca4896
[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" "a6d87d63ce093e6c16c71df722c4608162081245e0e6546edd67f6daa7ca4896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6d87d63ce093e6c16c71df722c4608162081245e0e6546edd67f6daa7ca4896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6d87d63ce093e6c16c71df722c4608162081245e0e6546edd67f6daa7ca4896", kill_on_drop: false }`
[INFO] [stdout] a6d87d63ce093e6c16c71df722c4608162081245e0e6546edd67f6daa7ca4896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 217df2d7df4a5f709b5953ca459ac313ff158591cf4ae1d1b37febca5b0d6ebb
[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" "217df2d7df4a5f709b5953ca459ac313ff158591cf4ae1d1b37febca5b0d6ebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking std_prelude v0.2.12
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking taken v0.1.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking arrayvec v0.4.12
[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 v0.2.12
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling configure_derive v0.1.1
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking shellexpand v1.1.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling quote v1.0.7
[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 stfu8 v0.2.4
[INFO] [stderr]     Checking ctrlc v3.1.6
[INFO] [stderr]     Checking ergo_sys v0.0.1
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking ron v0.1.7
[INFO] [stderr]     Checking path_abs v0.4.1
[INFO] [stderr]     Checking serde_yaml v0.7.5
[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 57.99s
[INFO] running `Command { std: "docker" "inspect" "217df2d7df4a5f709b5953ca459ac313ff158591cf4ae1d1b37febca5b0d6ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "217df2d7df4a5f709b5953ca459ac313ff158591cf4ae1d1b37febca5b0d6ebb", kill_on_drop: false }`
[INFO] [stdout] 217df2d7df4a5f709b5953ca459ac313ff158591cf4ae1d1b37febca5b0d6ebb