[INFO] updating cached repository https://github.com/rchaser53/rust_playground
[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] 65526d9ec11d37c2f24a77328f6ce598afe8c87d
[INFO] checking rchaser53/rust_playground against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frchaser53%2Frust_playground" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rchaser53/rust_playground 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/rchaser53/rust_playground
[INFO] finished tweaking git repo https://github.com/rchaser53/rust_playground
[INFO] tweaked toml for git repo https://github.com/rchaser53/rust_playground written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/rchaser53/rust_playground 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] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/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] f9f43a6664357c6a3acd76d0e7b874bfe19b956db6af84814088edc9f5877e1c
[INFO] running `"docker" "start" "-a" "f9f43a6664357c6a3acd76d0e7b874bfe19b956db6af84814088edc9f5877e1c"`
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]    Compiling rustfmt v0.10.0
[INFO] [stderr]    Compiling semver v0.6.0
[INFO] [stderr]    Compiling openssl-sys v0.9.24
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking mio v0.6.12
[INFO] [stderr]     Checking strings v0.1.1
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking rayon v1.0.0
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]    Compiling rustc_version v0.2.1
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling openssl v0.9.23
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]    Compiling extprim v1.5.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking syntex_pos v0.59.1
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]     Checking syntex_errors v0.59.1
[INFO] [stderr]     Checking syntex_syntax v0.59.1
[INFO] [stderr]     Checking like_cron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `"docker" "inspect" "f9f43a6664357c6a3acd76d0e7b874bfe19b956db6af84814088edc9f5877e1c"`
[INFO] running `"docker" "rm" "-f" "f9f43a6664357c6a3acd76d0e7b874bfe19b956db6af84814088edc9f5877e1c"`
[INFO] [stdout] f9f43a6664357c6a3acd76d0e7b874bfe19b956db6af84814088edc9f5877e1c