[INFO] crate cargo-yaml 3.0.0 is already in cache
[INFO] extracting crate cargo-yaml 3.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/cargo-yaml/3.0.0
[INFO] extracting crate cargo-yaml 3.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cargo-yaml/3.0.0
[INFO] validating manifest of cargo-yaml-3.0.0 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 cargo-yaml-3.0.0 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 cargo-yaml-3.0.0
[INFO] finished frobbing cargo-yaml-3.0.0
[INFO] frobbed toml for cargo-yaml-3.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/cargo-yaml/3.0.0/Cargo.toml
[INFO] started frobbing cargo-yaml-3.0.0
[INFO] finished frobbing cargo-yaml-3.0.0
[INFO] frobbed toml for cargo-yaml-3.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cargo-yaml/3.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 cargo-yaml-3.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cargo-yaml/3.0.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 0c33f1a89eb96d72330195abeb5a95a56ac8017ad292b6d03bd8d0fe489c51c6
[INFO] running `"docker" "start" "-a" "0c33f1a89eb96d72330195abeb5a95a56ac8017ad292b6d03bd8d0fe489c51c6"`
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling cargo-yaml v3.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `color`
[INFO] [stderr]   --> src/main.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |         pub fn color(&self) -> Color {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_enabled`
[INFO] [stderr]   --> src/main.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |         pub fn is_enabled(&self) -> bool {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `"docker" "inspect" "0c33f1a89eb96d72330195abeb5a95a56ac8017ad292b6d03bd8d0fe489c51c6"`
[INFO] running `"docker" "rm" "-f" "0c33f1a89eb96d72330195abeb5a95a56ac8017ad292b6d03bd8d0fe489c51c6"`
[INFO] [stdout] 0c33f1a89eb96d72330195abeb5a95a56ac8017ad292b6d03bd8d0fe489c51c6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cargo-yaml/3.0.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 076075a5fe105ff986376997fc5bc986c53f5b8560772d23eef7f54eda00a7fe
[INFO] running `"docker" "start" "-a" "076075a5fe105ff986376997fc5bc986c53f5b8560772d23eef7f54eda00a7fe"`
[INFO] [stderr]    Compiling cargo-yaml v3.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `color`
[INFO] [stderr]   --> src/main.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |         pub fn color(&self) -> Color {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_enabled`
[INFO] [stderr]   --> src/main.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |         pub fn is_enabled(&self) -> bool {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.15s
[INFO] running `"docker" "inspect" "076075a5fe105ff986376997fc5bc986c53f5b8560772d23eef7f54eda00a7fe"`
[INFO] running `"docker" "rm" "-f" "076075a5fe105ff986376997fc5bc986c53f5b8560772d23eef7f54eda00a7fe"`
[INFO] [stdout] 076075a5fe105ff986376997fc5bc986c53f5b8560772d23eef7f54eda00a7fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/cargo-yaml/3.0.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] aed35cb6bad7a82ed974b04bd26ec5a0afe933fa14cebd62c9dc4975a4c30e2c
[INFO] running `"docker" "start" "-a" "aed35cb6bad7a82ed974b04bd26ec5a0afe933fa14cebd62c9dc4975a4c30e2c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_yaml-e2d18f3279945741
[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" "aed35cb6bad7a82ed974b04bd26ec5a0afe933fa14cebd62c9dc4975a4c30e2c"`
[INFO] running `"docker" "rm" "-f" "aed35cb6bad7a82ed974b04bd26ec5a0afe933fa14cebd62c9dc4975a4c30e2c"`
[INFO] [stdout] aed35cb6bad7a82ed974b04bd26ec5a0afe933fa14cebd62c9dc4975a4c30e2c