[INFO] fetching crate little-skeptic 0.15.2...
[INFO] checking little-skeptic-0.15.2 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate little-skeptic 0.15.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate little-skeptic 0.15.2 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate little-skeptic 0.15.2
[INFO] finished tweaking crates.io crate little-skeptic 0.15.2
[INFO] tweaked toml for crates.io crate little-skeptic 0.15.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2311a774d5a51db6cfa255601fad31b327fa982f9ceb919524c52f474f1b887d
[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" "2311a774d5a51db6cfa255601fad31b327fa982f9ceb919524c52f474f1b887d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2311a774d5a51db6cfa255601fad31b327fa982f9ceb919524c52f474f1b887d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2311a774d5a51db6cfa255601fad31b327fa982f9ceb919524c52f474f1b887d", kill_on_drop: false }`
[INFO] [stdout] 2311a774d5a51db6cfa255601fad31b327fa982f9ceb919524c52f474f1b887d
[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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 5d8637f3d60c95d393f9fe849dc34e354dda0ada9bf3df5e3bea64a27c484d25
[INFO] running `Command { std: "docker" "start" "-a" "5d8637f3d60c95d393f9fe849dc34e354dda0ada9bf3df5e3bea64a27c484d25", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling pulldown-cmark v0.5.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking bytecount v0.5.1
[INFO] [stderr]     Checking unindent v0.1.7
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking cargo_metadata v0.8.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking backtrace v0.3.58
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking handlebars v2.0.4
[INFO] [stderr]     Checking little-skeptic v0.15.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.69s
[INFO] running `Command { std: "docker" "inspect" "5d8637f3d60c95d393f9fe849dc34e354dda0ada9bf3df5e3bea64a27c484d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d8637f3d60c95d393f9fe849dc34e354dda0ada9bf3df5e3bea64a27c484d25", kill_on_drop: false }`
[INFO] [stdout] 5d8637f3d60c95d393f9fe849dc34e354dda0ada9bf3df5e3bea64a27c484d25