[INFO] crate ubuntu-version 0.1.2 is already in cache
[INFO] extracting crate ubuntu-version 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/ubuntu-version/0.1.2
[INFO] extracting crate ubuntu-version 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ubuntu-version/0.1.2
[INFO] validating manifest of ubuntu-version-0.1.2 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 ubuntu-version-0.1.2 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 ubuntu-version-0.1.2
[INFO] finished frobbing ubuntu-version-0.1.2
[INFO] frobbed toml for ubuntu-version-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ubuntu-version/0.1.2/Cargo.toml
[INFO] started frobbing ubuntu-version-0.1.2
[INFO] finished frobbing ubuntu-version-0.1.2
[INFO] frobbed toml for ubuntu-version-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ubuntu-version/0.1.2/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 ubuntu-version-0.1.2 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ubuntu-version/0.1.2:/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] 119192b5e7f7acc6f981233c75942d752503bd1cc4be3fef497383b060145786
[INFO] running `"docker" "start" "-a" "119192b5e7f7acc6f981233c75942d752503bd1cc4be3fef497383b060145786"`
[INFO] [stderr]    Compiling os-release v0.1.0
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]    Compiling ubuntu-version v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `"docker" "inspect" "119192b5e7f7acc6f981233c75942d752503bd1cc4be3fef497383b060145786"`
[INFO] running `"docker" "rm" "-f" "119192b5e7f7acc6f981233c75942d752503bd1cc4be3fef497383b060145786"`
[INFO] [stdout] 119192b5e7f7acc6f981233c75942d752503bd1cc4be3fef497383b060145786
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ubuntu-version/0.1.2:/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] d0220782d520a7a35f8cdae0dc85faf4c4a42807a1de98c888f6dc2ae8bb6606
[INFO] running `"docker" "start" "-a" "d0220782d520a7a35f8cdae0dc85faf4c4a42807a1de98c888f6dc2ae8bb6606"`
[INFO] [stderr]    Compiling ubuntu-version v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]  --> examples/example.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let version = "18.04 LTS".parse::<Version>().unwrap();
[INFO] [stderr]   |         ^^^^^^^ help: consider prefixing with an underscore: `_version`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "d0220782d520a7a35f8cdae0dc85faf4c4a42807a1de98c888f6dc2ae8bb6606"`
[INFO] running `"docker" "rm" "-f" "d0220782d520a7a35f8cdae0dc85faf4c4a42807a1de98c888f6dc2ae8bb6606"`
[INFO] [stdout] d0220782d520a7a35f8cdae0dc85faf4c4a42807a1de98c888f6dc2ae8bb6606
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ubuntu-version/0.1.2:/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] 4ad2de19ef321fa7f3bab411489973aa0070ad4d41e8ae69aafdeb0f9d5994e9
[INFO] running `"docker" "start" "-a" "4ad2de19ef321fa7f3bab411489973aa0070ad4d41e8ae69aafdeb0f9d5994e9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ubuntu_version-e413ac5e345ee746
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test version::tests::lts_check ... ok
[INFO] [stdout] test version::tests::lts_next ... ok
[INFO] [stdout] test version::tests::lts_parse ... ok
[INFO] [stdout] test version::tests::non_lts_parse ... ok
[INFO] [stdout] test version::tests::non_lts_next ... 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 ubuntu-version
[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" "4ad2de19ef321fa7f3bab411489973aa0070ad4d41e8ae69aafdeb0f9d5994e9"`
[INFO] running `"docker" "rm" "-f" "4ad2de19ef321fa7f3bab411489973aa0070ad4d41e8ae69aafdeb0f9d5994e9"`
[INFO] [stdout] 4ad2de19ef321fa7f3bab411489973aa0070ad4d41e8ae69aafdeb0f9d5994e9