[INFO] crate yarns 0.4.1 is already in cache
[INFO] extracting crate yarns 0.4.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/yarns/0.4.1
[INFO] extracting crate yarns 0.4.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/yarns/0.4.1
[INFO] validating manifest of yarns-0.4.1 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 yarns-0.4.1 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 yarns-0.4.1
[INFO] finished frobbing yarns-0.4.1
[INFO] frobbed toml for yarns-0.4.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/yarns/0.4.1/Cargo.toml
[INFO] started frobbing yarns-0.4.1
[INFO] finished frobbing yarns-0.4.1
[INFO] frobbed toml for yarns-0.4.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/yarns/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 yarns-0.4.1 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-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/yarns/0.4.1:/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] ad329f85446e638edf9b300a7bc3c994e78131efc70095ca5cca70c79b380427
[INFO] running `"docker" "start" "-a" "ad329f85446e638edf9b300a7bc3c994e78131efc70095ca5cca70c79b380427"`
[INFO] [stderr]    Compiling yarns v0.4.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "ad329f85446e638edf9b300a7bc3c994e78131efc70095ca5cca70c79b380427"`
[INFO] running `"docker" "rm" "-f" "ad329f85446e638edf9b300a7bc3c994e78131efc70095ca5cca70c79b380427"`
[INFO] [stdout] ad329f85446e638edf9b300a7bc3c994e78131efc70095ca5cca70c79b380427
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/yarns/0.4.1:/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] ab41573af847c46cf37b77db7d77220ceb2cba670e032b67602839e56e94b9cd
[INFO] running `"docker" "start" "-a" "ab41573af847c46cf37b77db7d77220ceb2cba670e032b67602839e56e94b9cd"`
[INFO] [stderr]    Compiling yarns v0.4.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "ab41573af847c46cf37b77db7d77220ceb2cba670e032b67602839e56e94b9cd"`
[INFO] running `"docker" "rm" "-f" "ab41573af847c46cf37b77db7d77220ceb2cba670e032b67602839e56e94b9cd"`
[INFO] [stdout] ab41573af847c46cf37b77db7d77220ceb2cba670e032b67602839e56e94b9cd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/yarns/0.4.1:/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] 38968970ade4d336a7168c6dc0b2a504b9b82164a6f5f0829b8066c027266dd9
[INFO] running `"docker" "start" "-a" "38968970ade4d336a7168c6dc0b2a504b9b82164a6f5f0829b8066c027266dd9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/yarns-b0bd325abff13bae
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lib-85e5195cf604f3eb
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test main::substr_hello_1_3 ... ok
[INFO] [stdout] test main::head_hello_h ... ok
[INFO] [stdout] test main::contains_hello_hell ... ok
[INFO] [stdout] test main::len_hello ... ok
[INFO] [stdout] test main::concat_hello_goodbye ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yarns
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - contains (line 43) ... ok
[INFO] [stdout] test src/lib.rs - substr (line 17) ... ok
[INFO] [stdout] test src/lib.rs - len (line 63) ... ok
[INFO] [stdout] test src/lib.rs - head (line 5) ... ok
[INFO] [stdout] test src/lib.rs - concat (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "38968970ade4d336a7168c6dc0b2a504b9b82164a6f5f0829b8066c027266dd9"`
[INFO] running `"docker" "rm" "-f" "38968970ade4d336a7168c6dc0b2a504b9b82164a6f5f0829b8066c027266dd9"`
[INFO] [stdout] 38968970ade4d336a7168c6dc0b2a504b9b82164a6f5f0829b8066c027266dd9