[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 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-5/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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d0bfbf343229e08d447aec48672d3924bb9330a392609cc29ab067677fc0f372
[INFO] running `"docker" "start" "-a" "d0bfbf343229e08d447aec48672d3924bb9330a392609cc29ab067677fc0f372"`
[INFO] [stderr]    Compiling os-release v0.1.0
[INFO] [stderr]    Compiling ubuntu-version v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `"docker" "inspect" "d0bfbf343229e08d447aec48672d3924bb9330a392609cc29ab067677fc0f372"`
[INFO] running `"docker" "rm" "-f" "d0bfbf343229e08d447aec48672d3924bb9330a392609cc29ab067677fc0f372"`
[INFO] [stdout] d0bfbf343229e08d447aec48672d3924bb9330a392609cc29ab067677fc0f372
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 68b8e22e0526406880f9937b917d3ee20cb89bde3668cc1b020bf797d9b9b67b
[INFO] running `"docker" "start" "-a" "68b8e22e0526406880f9937b917d3ee20cb89bde3668cc1b020bf797d9b9b67b"`
[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 0.96s
[INFO] running `"docker" "inspect" "68b8e22e0526406880f9937b917d3ee20cb89bde3668cc1b020bf797d9b9b67b"`
[INFO] running `"docker" "rm" "-f" "68b8e22e0526406880f9937b917d3ee20cb89bde3668cc1b020bf797d9b9b67b"`
[INFO] [stdout] 68b8e22e0526406880f9937b917d3ee20cb89bde3668cc1b020bf797d9b9b67b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d936b0b0a553eebf8524039b89e6044b571ffcf53a72e84d784584f5d25a90a7
[INFO] running `"docker" "start" "-a" "d936b0b0a553eebf8524039b89e6044b571ffcf53a72e84d784584f5d25a90a7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ubuntu_version-a077ba2864590126
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test version::tests::lts_next ... ok
[INFO] [stdout] test version::tests::lts_check ... ok
[INFO] [stdout] test version::tests::non_lts_parse ... ok
[INFO] [stdout] test version::tests::non_lts_next ... ok
[INFO] [stdout] test version::tests::lts_parse ... 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" "d936b0b0a553eebf8524039b89e6044b571ffcf53a72e84d784584f5d25a90a7"`
[INFO] running `"docker" "rm" "-f" "d936b0b0a553eebf8524039b89e6044b571ffcf53a72e84d784584f5d25a90a7"`
[INFO] [stdout] d936b0b0a553eebf8524039b89e6044b571ffcf53a72e84d784584f5d25a90a7