[INFO] fetching crate ergo_fs 0.2.0...
[INFO] checking ergo_fs-0.2.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate ergo_fs 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ergo_fs 0.2.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ergo_fs 0.2.0
[INFO] finished tweaking crates.io crate ergo_fs 0.2.0
[INFO] tweaked toml for crates.io crate ergo_fs 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.2.14
[INFO] [stderr]   Downloaded xattr v0.2.2
[INFO] [stderr]   Downloaded stfu8 v0.2.4
[INFO] [stderr]   Downloaded tar v0.4.32
[INFO] [stderr]   Downloaded shellexpand v1.1.1
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded path_abs v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 737429a5a7fc302c9cd606d2f6d966629567f275e2712932dd4fbf01425522fd
[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" "737429a5a7fc302c9cd606d2f6d966629567f275e2712932dd4fbf01425522fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "737429a5a7fc302c9cd606d2f6d966629567f275e2712932dd4fbf01425522fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737429a5a7fc302c9cd606d2f6d966629567f275e2712932dd4fbf01425522fd", kill_on_drop: false }`
[INFO] [stdout] 737429a5a7fc302c9cd606d2f6d966629567f275e2712932dd4fbf01425522fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cb053dbe1224bb5433d96a100a1e0f2bfa4ab1322e9bee916f0ef3f5f784a2b
[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" "8cb053dbe1224bb5433d96a100a1e0f2bfa4ab1322e9bee916f0ef3f5f784a2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking same-file v1.0.6
[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 tempdir v0.3.7
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking shellexpand v1.1.1
[INFO] [stderr]     Checking tar v0.4.32
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking stfu8 v0.2.4
[INFO] [stderr]     Checking path_abs v0.4.1
[INFO] [stderr]     Checking ergo_fs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.13s
[INFO] running `Command { std: "docker" "inspect" "8cb053dbe1224bb5433d96a100a1e0f2bfa4ab1322e9bee916f0ef3f5f784a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cb053dbe1224bb5433d96a100a1e0f2bfa4ab1322e9bee916f0ef3f5f784a2b", kill_on_drop: false }`
[INFO] [stdout] 8cb053dbe1224bb5433d96a100a1e0f2bfa4ab1322e9bee916f0ef3f5f784a2b