[INFO] updating cached repository AntoineMaitre/rust-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AntoineMaitre/rust-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AntoineMaitre/rust-playground" "work/ex/beta-1.37-6/sources/1.36.0/gh/AntoineMaitre/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/AntoineMaitre/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AntoineMaitre/rust-playground" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AntoineMaitre/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AntoineMaitre/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c9518526992fb1b73a6ba3411649555a7c79d2d
[INFO] sha for GitHub repo AntoineMaitre/rust-playground: 3c9518526992fb1b73a6ba3411649555a7c79d2d
[INFO] validating manifest of AntoineMaitre/rust-playground on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of AntoineMaitre/rust-playground on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing AntoineMaitre/rust-playground
[INFO] finished frobbing AntoineMaitre/rust-playground
[INFO] frobbed toml for AntoineMaitre/rust-playground written to work/ex/beta-1.37-6/sources/1.36.0/gh/AntoineMaitre/rust-playground/Cargo.toml
[INFO] started frobbing AntoineMaitre/rust-playground
[INFO] finished frobbing AntoineMaitre/rust-playground
[INFO] frobbed toml for AntoineMaitre/rust-playground written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AntoineMaitre/rust-playground/Cargo.toml
[INFO] crate AntoineMaitre/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing AntoineMaitre/rust-playground against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AntoineMaitre/rust-playground:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2d6b006d01bdd1d502e8100ef302e4b286bb4546b8247933320e549a78981766
[INFO] running `"docker" "start" "-a" "2d6b006d01bdd1d502e8100ef302e4b286bb4546b8247933320e549a78981766"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling ferris-says v0.1.1
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `"docker" "inspect" "2d6b006d01bdd1d502e8100ef302e4b286bb4546b8247933320e549a78981766"`
[INFO] running `"docker" "rm" "-f" "2d6b006d01bdd1d502e8100ef302e4b286bb4546b8247933320e549a78981766"`
[INFO] [stdout] 2d6b006d01bdd1d502e8100ef302e4b286bb4546b8247933320e549a78981766
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AntoineMaitre/rust-playground:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 95a508a396a21f008d62e9cba6739a81418bb4c66fe50af9c3e0c4e68a5d8f03
[INFO] running `"docker" "start" "-a" "95a508a396a21f008d62e9cba6739a81418bb4c66fe50af9c3e0c4e68a5d8f03"`
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "95a508a396a21f008d62e9cba6739a81418bb4c66fe50af9c3e0c4e68a5d8f03"`
[INFO] running `"docker" "rm" "-f" "95a508a396a21f008d62e9cba6739a81418bb4c66fe50af9c3e0c4e68a5d8f03"`
[INFO] [stdout] 95a508a396a21f008d62e9cba6739a81418bb4c66fe50af9c3e0c4e68a5d8f03
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AntoineMaitre/rust-playground:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 831eb836daae5c4512a98ab96f995e35bb1c627706456b83f5c540678b6c4763
[INFO] running `"docker" "start" "-a" "831eb836daae5c4512a98ab96f995e35bb1c627706456b83f5c540678b6c4763"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_rust-1abbdcab9420f319
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "831eb836daae5c4512a98ab96f995e35bb1c627706456b83f5c540678b6c4763"`
[INFO] running `"docker" "rm" "-f" "831eb836daae5c4512a98ab96f995e35bb1c627706456b83f5c540678b6c4763"`
[INFO] [stdout] 831eb836daae5c4512a98ab96f995e35bb1c627706456b83f5c540678b6c4763