[INFO] updating cached repository soenkehahn/rust-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/soenkehahn/rust-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-playground" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/soenkehahn/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/soenkehahn/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/soenkehahn/rust-playground" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/soenkehahn/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/soenkehahn/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 41d472a9b04cdb02312edfa8b05bd2d9f85789fb
[INFO] sha for GitHub repo soenkehahn/rust-playground: 41d472a9b04cdb02312edfa8b05bd2d9f85789fb
[INFO] validating manifest of soenkehahn/rust-playground on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of soenkehahn/rust-playground on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing soenkehahn/rust-playground
[INFO] finished frobbing soenkehahn/rust-playground
[INFO] frobbed toml for soenkehahn/rust-playground written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/soenkehahn/rust-playground/Cargo.toml
[INFO] started frobbing soenkehahn/rust-playground
[INFO] finished frobbing soenkehahn/rust-playground
[INFO] frobbed toml for soenkehahn/rust-playground written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/soenkehahn/rust-playground/Cargo.toml
[INFO] crate soenkehahn/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking soenkehahn/rust-playground against try#f45cc3094ee337acd688771b9234318046b0572d for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-7/try#f45cc3094ee337acd688771b9234318046b0572d:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/soenkehahn/rust-playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d203cf4c0fa5a6825936eac3d7db7f47a9ec981b44f52c56358d8a28f47c7cad
[INFO] running `"docker" "start" "-a" "d203cf4c0fa5a6825936eac3d7db7f47a9ec981b44f52c56358d8a28f47c7cad"`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]     Checking playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.33s
[INFO] running `"docker" "inspect" "d203cf4c0fa5a6825936eac3d7db7f47a9ec981b44f52c56358d8a28f47c7cad"`
[INFO] running `"docker" "rm" "-f" "d203cf4c0fa5a6825936eac3d7db7f47a9ec981b44f52c56358d8a28f47c7cad"`
[INFO] [stdout] d203cf4c0fa5a6825936eac3d7db7f47a9ec981b44f52c56358d8a28f47c7cad