[INFO] updating cached repository https://github.com/BenBergman/robotron
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] aa21168af66c82c73e6504cb3b9c25a3824871dc
[INFO] checking BenBergman/robotron against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenBergman%2Frobotron" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BenBergman/robotron on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BenBergman/robotron
[INFO] finished tweaking git repo https://github.com/BenBergman/robotron
[INFO] tweaked toml for git repo https://github.com/BenBergman/robotron written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/BenBergman/robotron already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 61b4b621759b54600139d9218a764e64c7c52c4cb2b13f88bdc72758f8eaded4
[INFO] running `"docker" "start" "-a" "61b4b621759b54600139d9218a764e64c7c52c4cb2b13f88bdc72758f8eaded4"`
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking twox-hash v1.1.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.4
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]     Checking serde_urlencoded v0.4.3
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking cask v0.7.1 (https://github.com/andresilva/cask.git#f2d485d9)
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking tungstenite v0.2.4
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-mockstream v1.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking tokio-reactor v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking hyper-native-tls v0.2.4
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking reqwest v0.4.0
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking slack_api v0.17.0
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking irc v0.12.8
[INFO] [stderr]     Checking slack v0.18.0
[INFO] [stderr]     Checking chatbot v0.2.3 (https://github.com/jwilm/chatbot.git#483853f8)
[INFO] [stderr]     Checking robotron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.05s
[INFO] running `"docker" "inspect" "61b4b621759b54600139d9218a764e64c7c52c4cb2b13f88bdc72758f8eaded4"`
[INFO] running `"docker" "rm" "-f" "61b4b621759b54600139d9218a764e64c7c52c4cb2b13f88bdc72758f8eaded4"`
[INFO] [stdout] 61b4b621759b54600139d9218a764e64c7c52c4cb2b13f88bdc72758f8eaded4