[INFO] fetching crate dir-lock 0.3.0...
[INFO] checking dir-lock-0.3.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate dir-lock 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dir-lock 0.3.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dir-lock 0.3.0
[INFO] finished tweaking crates.io crate dir-lock 0.3.0
[INFO] tweaked toml for crates.io crate dir-lock 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macaddr v1.0.1
[INFO] [stderr]   Downloaded platforms v0.2.1
[INFO] [stderr]   Downloaded uom v0.30.0
[INFO] [stderr]   Downloaded heim-memory v0.0.11
[INFO] [stderr]   Downloaded heim-cpu v0.0.11
[INFO] [stderr]   Downloaded heim-host v0.0.11
[INFO] [stderr]   Downloaded heim-net v0.0.11
[INFO] [stderr]   Downloaded heim-process v0.0.11
[INFO] [stderr]   Downloaded darwin-libproc-sys v0.1.2
[INFO] [stderr]   Downloaded darwin-libproc v0.1.2
[INFO] [stderr]   Downloaded heim-virt v0.0.11
[INFO] [stderr]   Downloaded heim-runtime v0.0.7
[INFO] [stderr]   Downloaded raw-cpuid v7.0.4
[INFO] [stderr]   Downloaded heim-disk v0.0.11
[INFO] [stderr]   Downloaded heim-sensors v0.0.6
[INFO] [stderr]   Downloaded heim v0.0.11
[INFO] [stderr]   Downloaded heim-common v0.0.11
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd9fbcf190a371853ecf8885580982b6378ae654881204b30823d9c7de41a664
[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" "cd9fbcf190a371853ecf8885580982b6378ae654881204b30823d9c7de41a664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd9fbcf190a371853ecf8885580982b6378ae654881204b30823d9c7de41a664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9fbcf190a371853ecf8885580982b6378ae654881204b30823d9c7de41a664", kill_on_drop: false }`
[INFO] [stdout] cd9fbcf190a371853ecf8885580982b6378ae654881204b30823d9c7de41a664
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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] 455bfa23347e7de386897ee4cffd27752f8fdabc3b4ae12154a3d25e33e9256a
[INFO] running `Command { std: "docker" "start" "-a" "455bfa23347e7de386897ee4cffd27752f8fdabc3b4ae12154a3d25e33e9256a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling heim-common v0.0.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling heim-host v0.0.11
[INFO] [stderr]     Checking macaddr v1.0.1
[INFO] [stderr]     Checking platforms v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking uom v0.30.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking heim-runtime v0.0.7
[INFO] [stderr]     Checking heim-net v0.0.11
[INFO] [stderr]     Checking heim-cpu v0.0.11
[INFO] [stderr]     Checking heim-memory v0.0.11
[INFO] [stderr]     Checking heim-virt v0.0.11
[INFO] [stderr]     Checking heim-disk v0.0.11
[INFO] [stderr]     Checking heim-sensors v0.0.6
[INFO] [stderr]     Checking heim-process v0.0.11
[INFO] [stderr]     Checking heim v0.0.11
[INFO] [stderr]     Checking dir-lock v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.17s
[INFO] running `Command { std: "docker" "inspect" "455bfa23347e7de386897ee4cffd27752f8fdabc3b4ae12154a3d25e33e9256a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455bfa23347e7de386897ee4cffd27752f8fdabc3b4ae12154a3d25e33e9256a", kill_on_drop: false }`
[INFO] [stdout] 455bfa23347e7de386897ee4cffd27752f8fdabc3b4ae12154a3d25e33e9256a