[INFO] updating cached repository Virviil/cow.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Virviil/cow.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Virviil/cow.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Virviil/cow.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Virviil/cow.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Virviil/cow.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Virviil/cow.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Virviil/cow.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 944162b1ba04c7ca67758b6c3e3ebfc8887d7780
[INFO] sha for GitHub repo Virviil/cow.rs: 944162b1ba04c7ca67758b6c3e3ebfc8887d7780
[INFO] validating manifest of Virviil/cow.rs 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 Virviil/cow.rs 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 Virviil/cow.rs
[INFO] finished frobbing Virviil/cow.rs
[INFO] frobbed toml for Virviil/cow.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Virviil/cow.rs/Cargo.toml
[INFO] started frobbing Virviil/cow.rs
[INFO] finished frobbing Virviil/cow.rs
[INFO] frobbed toml for Virviil/cow.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Virviil/cow.rs/Cargo.toml
[INFO] crate Virviil/cow.rs 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 Virviil/cow.rs 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Virviil/cow.rs:/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] 5d8d46448c36bb34fd3717d5ba35462253836803524931bac675c901b0d21ba7
[INFO] running `"docker" "start" "-a" "5d8d46448c36bb34fd3717d5ba35462253836803524931bac675c901b0d21ba7"`
[INFO] [stderr]    Compiling cow v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/commands.rs:172:17
[INFO] [stderr]     |
[INFO] [stderr] 172 |     let num = s.trim_right().parse::<i32>().expect("failed parsing int from stdin");
[INFO] [stderr]     |                 ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "5d8d46448c36bb34fd3717d5ba35462253836803524931bac675c901b0d21ba7"`
[INFO] running `"docker" "rm" "-f" "5d8d46448c36bb34fd3717d5ba35462253836803524931bac675c901b0d21ba7"`
[INFO] [stdout] 5d8d46448c36bb34fd3717d5ba35462253836803524931bac675c901b0d21ba7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Virviil/cow.rs:/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] 73441ea08bcea7e77106d1fb372ddd04de307d582e85eca692391ca0d2c652ae
[INFO] running `"docker" "start" "-a" "73441ea08bcea7e77106d1fb372ddd04de307d582e85eca692391ca0d2c652ae"`
[INFO] [stderr]    Compiling cow v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/commands.rs:172:17
[INFO] [stderr]     |
[INFO] [stderr] 172 |     let num = s.trim_right().parse::<i32>().expect("failed parsing int from stdin");
[INFO] [stderr]     |                 ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "73441ea08bcea7e77106d1fb372ddd04de307d582e85eca692391ca0d2c652ae"`
[INFO] running `"docker" "rm" "-f" "73441ea08bcea7e77106d1fb372ddd04de307d582e85eca692391ca0d2c652ae"`
[INFO] [stdout] 73441ea08bcea7e77106d1fb372ddd04de307d582e85eca692391ca0d2c652ae
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Virviil/cow.rs:/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] 7404fd3445c27daa93f47b2094680fb502670e59d34e455a01935addb716e78c
[INFO] running `"docker" "start" "-a" "7404fd3445c27daa93f47b2094680fb502670e59d34e455a01935addb716e78c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cow-11dd3124b9c54731
[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" "7404fd3445c27daa93f47b2094680fb502670e59d34e455a01935addb716e78c"`
[INFO] running `"docker" "rm" "-f" "7404fd3445c27daa93f47b2094680fb502670e59d34e455a01935addb716e78c"`
[INFO] [stdout] 7404fd3445c27daa93f47b2094680fb502670e59d34e455a01935addb716e78c