[INFO] updating cached repository https://github.com/divvun/kbdgen-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 376be248d8e00c8ef3d4a17c4904cfb1e66c3bcf
[INFO] checking divvun/kbdgen-rs against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivvun%2Fkbdgen-rs" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/divvun/kbdgen-rs on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/divvun/kbdgen-rs
[INFO] removed workspace from git repo https://github.com/divvun/kbdgen-rs
[INFO] finished tweaking git repo https://github.com/divvun/kbdgen-rs
[INFO] tweaked toml for git repo https://github.com/divvun/kbdgen-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/divvun/kbdgen-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/killercup/serde-yaml/`
[INFO] [stderr]     Updating git repository `https://github.com/killercup/yaml-rust/`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a21d12f23c72a891a0d9ce952b0f90880078b95843add02f6a85db6c40abc2f6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a21d12f23c72a891a0d9ce952b0f90880078b95843add02f6a85db6c40abc2f6"`
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking yaml-rust v0.4.3 (https://github.com/killercup/yaml-rust/?branch=feature/multiline#0d4d5da5)
[INFO] [stderr]     Checking unic-ucd-category v0.9.0
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling strum_macros v0.15.0
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking serde_yaml v0.8.9 (https://github.com/killercup/serde-yaml/?branch=feature/multiline-strings#6f1c52b2)
[INFO] [stderr]     Checking proptest v0.9.4
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr]     Checking kbdgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.23s
[INFO] running `"docker" "inspect" "a21d12f23c72a891a0d9ce952b0f90880078b95843add02f6a85db6c40abc2f6"`
[INFO] running `"docker" "rm" "-f" "a21d12f23c72a891a0d9ce952b0f90880078b95843add02f6a85db6c40abc2f6"`
[INFO] [stdout] a21d12f23c72a891a0d9ce952b0f90880078b95843add02f6a85db6c40abc2f6