[INFO] updating cached repository premist/it-works
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/premist/it-works
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/premist/it-works" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/premist/it-works"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/premist/it-works'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/premist/it-works" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/premist/it-works"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/premist/it-works'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 00d93ee0b560ea0e4a6543c0bb0ca73e036784ea
[INFO] sha for GitHub repo premist/it-works: 00d93ee0b560ea0e4a6543c0bb0ca73e036784ea
[INFO] validating manifest of premist/it-works on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of premist/it-works on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing premist/it-works
[INFO] finished frobbing premist/it-works
[INFO] frobbed toml for premist/it-works written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/premist/it-works/Cargo.toml
[INFO] started frobbing premist/it-works
[INFO] finished frobbing premist/it-works
[INFO] frobbed toml for premist/it-works written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/premist/it-works/Cargo.toml
[INFO] crate premist/it-works already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking premist/it-works against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-1/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/premist/it-works:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4cf342dc4df563d402949d1e0aba4eb5e8fbd8de6805be5f9cf19802f7d22e66
[INFO] running `"docker" "start" "-a" "4cf342dc4df563d402949d1e0aba4eb5e8fbd8de6805be5f9cf19802f7d22e66"`
[INFO] [stderr]     Checking mustache v0.8.2
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking nickel v0.10.0
[INFO] [stderr]     Checking it-works v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.50s
[INFO] running `"docker" "inspect" "4cf342dc4df563d402949d1e0aba4eb5e8fbd8de6805be5f9cf19802f7d22e66"`
[INFO] running `"docker" "rm" "-f" "4cf342dc4df563d402949d1e0aba4eb5e8fbd8de6805be5f9cf19802f7d22e66"`
[INFO] [stdout] 4cf342dc4df563d402949d1e0aba4eb5e8fbd8de6805be5f9cf19802f7d22e66