[INFO] updating cached repository https://github.com/pop-os/ubuntu-version
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 79d51b8d2d80306e87ec93ef6ccd8089fa653a69
[INFO] testing pop-os/ubuntu-version against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fubuntu-version" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pop-os/ubuntu-version on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pop-os/ubuntu-version
[INFO] finished tweaking git repo https://github.com/pop-os/ubuntu-version
[INFO] tweaked toml for git repo https://github.com/pop-os/ubuntu-version written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/pop-os/ubuntu-version already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 313a242a8568d81afff093ef35be58097e91ce39981814fd5d0c1bf9589f77ed
[INFO] running `"docker" "start" "-a" "313a242a8568d81afff093ef35be58097e91ce39981814fd5d0c1bf9589f77ed"`
[INFO] [stderr]    Compiling os-release v0.1.0
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]    Compiling ubuntu-version v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.57s
[INFO] running `"docker" "inspect" "313a242a8568d81afff093ef35be58097e91ce39981814fd5d0c1bf9589f77ed"`
[INFO] running `"docker" "rm" "-f" "313a242a8568d81afff093ef35be58097e91ce39981814fd5d0c1bf9589f77ed"`
[INFO] [stdout] 313a242a8568d81afff093ef35be58097e91ce39981814fd5d0c1bf9589f77ed
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1a19f833254661bb1c3764e1809ea0e48a84ce6f309fb5bfa0be68ac51ca0c54
[INFO] running `"docker" "start" "-a" "1a19f833254661bb1c3764e1809ea0e48a84ce6f309fb5bfa0be68ac51ca0c54"`
[INFO] [stderr]    Compiling ubuntu-version v0.1.4 (/opt/rustwide/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 2.01s
[INFO] running `"docker" "inspect" "1a19f833254661bb1c3764e1809ea0e48a84ce6f309fb5bfa0be68ac51ca0c54"`
[INFO] running `"docker" "rm" "-f" "1a19f833254661bb1c3764e1809ea0e48a84ce6f309fb5bfa0be68ac51ca0c54"`
[INFO] [stdout] 1a19f833254661bb1c3764e1809ea0e48a84ce6f309fb5bfa0be68ac51ca0c54
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 907a0d7a850f81089e242877099fe12eb8d8169f92463a34a0ff6d31cd01119f
[INFO] running `"docker" "start" "-a" "907a0d7a850f81089e242877099fe12eb8d8169f92463a34a0ff6d31cd01119f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ubuntu_version-e732d105daf93f9a
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test version::tests::lts_next ... ok
[INFO] [stdout] test version::tests::months_since_release ... ok
[INFO] [stdout] test version::tests::lts_parse ... ok
[INFO] [stdout] test version::tests::non_lts_next ... ok
[INFO] [stdout] test version::tests::lts_check ... ok
[INFO] [stdout] test version::tests::non_lts_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 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" "907a0d7a850f81089e242877099fe12eb8d8169f92463a34a0ff6d31cd01119f"`
[INFO] running `"docker" "rm" "-f" "907a0d7a850f81089e242877099fe12eb8d8169f92463a34a0ff6d31cd01119f"`
[INFO] [stdout] 907a0d7a850f81089e242877099fe12eb8d8169f92463a34a0ff6d31cd01119f