[INFO] updating cached repository lesguillemets/rsw
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lesguillemets/rsw
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lesguillemets/rsw" "work/ex/beta-1.38-1/sources/1.37.0/gh/lesguillemets/rsw"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lesguillemets/rsw'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lesguillemets/rsw" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lesguillemets/rsw"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lesguillemets/rsw'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fccfbb7f2cc5a9a64345f52ab2e3e24c3a15898e
[INFO] sha for GitHub repo lesguillemets/rsw: fccfbb7f2cc5a9a64345f52ab2e3e24c3a15898e
[INFO] validating manifest of lesguillemets/rsw on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lesguillemets/rsw on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lesguillemets/rsw
[INFO] finished frobbing lesguillemets/rsw
[INFO] frobbed toml for lesguillemets/rsw written to work/ex/beta-1.38-1/sources/1.37.0/gh/lesguillemets/rsw/Cargo.toml
[INFO] started frobbing lesguillemets/rsw
[INFO] finished frobbing lesguillemets/rsw
[INFO] frobbed toml for lesguillemets/rsw written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lesguillemets/rsw/Cargo.toml
[INFO] crate lesguillemets/rsw already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lesguillemets/rsw against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lesguillemets/rsw:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8735a521255b808e64c462df827b25127629a823fb6698ade0aa180f73fe1c08
[INFO] running `"docker" "start" "-a" "8735a521255b808e64c462df827b25127629a823fb6698ade0aa180f73fe1c08"`
[INFO] [stderr]    Compiling stopwatch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     println!("Hello, world!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "8735a521255b808e64c462df827b25127629a823fb6698ade0aa180f73fe1c08"`
[INFO] running `"docker" "rm" "-f" "8735a521255b808e64c462df827b25127629a823fb6698ade0aa180f73fe1c08"`
[INFO] [stdout] 8735a521255b808e64c462df827b25127629a823fb6698ade0aa180f73fe1c08
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lesguillemets/rsw:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 15c5797f02ca5c2fe86b519b6bf51de0dcc0bf499c6c72a117edbdc831de0042
[INFO] running `"docker" "start" "-a" "15c5797f02ca5c2fe86b519b6bf51de0dcc0bf499c6c72a117edbdc831de0042"`
[INFO] [stderr]    Compiling stopwatch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     println!("Hello, world!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "15c5797f02ca5c2fe86b519b6bf51de0dcc0bf499c6c72a117edbdc831de0042"`
[INFO] running `"docker" "rm" "-f" "15c5797f02ca5c2fe86b519b6bf51de0dcc0bf499c6c72a117edbdc831de0042"`
[INFO] [stdout] 15c5797f02ca5c2fe86b519b6bf51de0dcc0bf499c6c72a117edbdc831de0042
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lesguillemets/rsw:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] c760d26f4e119e6d04d2ea91e6938adc250bdfc0d9fd59a5b011116738faa8db
[INFO] running `"docker" "start" "-a" "c760d26f4e119e6d04d2ea91e6938adc250bdfc0d9fd59a5b011116738faa8db"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stopwatch-ca82ac1647a7099f
[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" "c760d26f4e119e6d04d2ea91e6938adc250bdfc0d9fd59a5b011116738faa8db"`
[INFO] running `"docker" "rm" "-f" "c760d26f4e119e6d04d2ea91e6938adc250bdfc0d9fd59a5b011116738faa8db"`
[INFO] [stdout] c760d26f4e119e6d04d2ea91e6938adc250bdfc0d9fd59a5b011116738faa8db