[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-1.37-6/sources/1.36.0/gh/Virviil/cow.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Virviil/cow.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Virviil/cow.rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Virviil/cow.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Virviil/cow.rs 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 Virviil/cow.rs
[INFO] finished frobbing Virviil/cow.rs
[INFO] frobbed toml for Virviil/cow.rs written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 Virviil/cow.rs 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-4/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/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 85be2027573d5504b327b1b2cfdb01b3dc9d2254871487854ab075306380c387
[INFO] running `"docker" "start" "-a" "85be2027573d5504b327b1b2cfdb01b3dc9d2254871487854ab075306380c387"`
[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 0.75s
[INFO] running `"docker" "inspect" "85be2027573d5504b327b1b2cfdb01b3dc9d2254871487854ab075306380c387"`
[INFO] running `"docker" "rm" "-f" "85be2027573d5504b327b1b2cfdb01b3dc9d2254871487854ab075306380c387"`
[INFO] [stdout] 85be2027573d5504b327b1b2cfdb01b3dc9d2254871487854ab075306380c387
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0bd0c405ac2995a265fa47539679f9d34531d03ddcd61b1bc28a4498c77a66bb
[INFO] running `"docker" "start" "-a" "0bd0c405ac2995a265fa47539679f9d34531d03ddcd61b1bc28a4498c77a66bb"`
[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 0.76s
[INFO] running `"docker" "inspect" "0bd0c405ac2995a265fa47539679f9d34531d03ddcd61b1bc28a4498c77a66bb"`
[INFO] running `"docker" "rm" "-f" "0bd0c405ac2995a265fa47539679f9d34531d03ddcd61b1bc28a4498c77a66bb"`
[INFO] [stdout] 0bd0c405ac2995a265fa47539679f9d34531d03ddcd61b1bc28a4498c77a66bb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 2dd67d33b1bd7dfdf6905e9ca37a068cf891145a34fa1e4c2a456f67ba8c634f
[INFO] running `"docker" "start" "-a" "2dd67d33b1bd7dfdf6905e9ca37a068cf891145a34fa1e4c2a456f67ba8c634f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cow-38214a3eaa309ee2
[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" "2dd67d33b1bd7dfdf6905e9ca37a068cf891145a34fa1e4c2a456f67ba8c634f"`
[INFO] running `"docker" "rm" "-f" "2dd67d33b1bd7dfdf6905e9ca37a068cf891145a34fa1e4c2a456f67ba8c634f"`
[INFO] [stdout] 2dd67d33b1bd7dfdf6905e9ca37a068cf891145a34fa1e4c2a456f67ba8c634f