[INFO] cloning repository chridou/towers-rs [INFO] running `"git" "clone" "--bare" "git://github.com/chridou/towers-rs.git" "work/cache/sources/gh/chridou/towers-rs"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/chridou/towers-rs'... [INFO] running `"git" "clone" "work/cache/sources/gh/chridou/towers-rs" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/chridou/towers-rs"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/chridou/towers-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/chridou/towers-rs" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/chridou/towers-rs"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/chridou/towers-rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ff40f92499bad724e9a4025f4b996012120e323e [INFO] sha for GitHub repo chridou/towers-rs: ff40f92499bad724e9a4025f4b996012120e323e [INFO] validating manifest of chridou/towers-rs on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of chridou/towers-rs on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing chridou/towers-rs [INFO] finished frobbing chridou/towers-rs [INFO] frobbed toml for chridou/towers-rs written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/chridou/towers-rs/Cargo.toml [INFO] started frobbing chridou/towers-rs [INFO] finished frobbing chridou/towers-rs [INFO] frobbed toml for chridou/towers-rs written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/chridou/towers-rs/Cargo.toml [INFO] crate chridou/towers-rs already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking chridou/towers-rs against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/chridou/towers-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 4a1efc08dd3f20b861d6ddcc283b2077cb5d800213328f970b0bfe8b3c904320 [INFO] running `"docker" "start" "-a" "4a1efc08dd3f20b861d6ddcc283b2077cb5d800213328f970b0bfe8b3c904320"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking clap v2.23.2 [INFO] [stderr] Checking towers v1.0.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.44s [INFO] running `"docker" "inspect" "4a1efc08dd3f20b861d6ddcc283b2077cb5d800213328f970b0bfe8b3c904320"` [INFO] running `"docker" "rm" "-f" "4a1efc08dd3f20b861d6ddcc283b2077cb5d800213328f970b0bfe8b3c904320"` [INFO] [stdout] 4a1efc08dd3f20b861d6ddcc283b2077cb5d800213328f970b0bfe8b3c904320