[INFO] updating cached repository cmarshall10450/docker-version
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cmarshall10450/docker-version
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cmarshall10450/docker-version" "work/ex/beta-1.38-1/sources/1.37.0/gh/cmarshall10450/docker-version"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cmarshall10450/docker-version'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cmarshall10450/docker-version" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmarshall10450/docker-version"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmarshall10450/docker-version'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54b97fdd53c97f93abf371fd39f68818bfaad06b
[INFO] sha for GitHub repo cmarshall10450/docker-version: 54b97fdd53c97f93abf371fd39f68818bfaad06b
[INFO] validating manifest of cmarshall10450/docker-version 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 cmarshall10450/docker-version 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 cmarshall10450/docker-version
[INFO] finished frobbing cmarshall10450/docker-version
[INFO] frobbed toml for cmarshall10450/docker-version written to work/ex/beta-1.38-1/sources/1.37.0/gh/cmarshall10450/docker-version/Cargo.toml
[INFO] started frobbing cmarshall10450/docker-version
[INFO] finished frobbing cmarshall10450/docker-version
[INFO] frobbed toml for cmarshall10450/docker-version written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmarshall10450/docker-version/Cargo.toml
[INFO] crate cmarshall10450/docker-version already has a lockfile, it will not be regenerated
[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 cmarshall10450/docker-version 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/gh/cmarshall10450/docker-version:/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] f308607eb80d03dec847fa020ca96532006af44417c99946afa4f59554525239
[INFO] running `"docker" "start" "-a" "f308607eb80d03dec847fa020ca96532006af44417c99946afa4f59554525239"`
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling docker-version v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `ArgParse`
[INFO] [stderr]  --> src/error.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   ArgParse,
[INFO] [stderr]   |   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VersionParse`
[INFO] [stderr]  --> src/error.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   VersionParse
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/command.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   file.read_to_string(&mut version);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.32s
[INFO] running `"docker" "inspect" "f308607eb80d03dec847fa020ca96532006af44417c99946afa4f59554525239"`
[INFO] running `"docker" "rm" "-f" "f308607eb80d03dec847fa020ca96532006af44417c99946afa4f59554525239"`
[INFO] [stdout] f308607eb80d03dec847fa020ca96532006af44417c99946afa4f59554525239
[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/gh/cmarshall10450/docker-version:/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] 74d01cfa95b3493a4d61865ca86a05f02ac9aba57973b2a103b77e066a1ceb96
[INFO] running `"docker" "start" "-a" "74d01cfa95b3493a4d61865ca86a05f02ac9aba57973b2a103b77e066a1ceb96"`
[INFO] [stderr]    Compiling docker-version v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `ArgParse`
[INFO] [stderr]  --> src/error.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   ArgParse,
[INFO] [stderr]   |   ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VersionParse`
[INFO] [stderr]  --> src/error.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   VersionParse
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/command.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   file.read_to_string(&mut version);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "74d01cfa95b3493a4d61865ca86a05f02ac9aba57973b2a103b77e066a1ceb96"`
[INFO] running `"docker" "rm" "-f" "74d01cfa95b3493a4d61865ca86a05f02ac9aba57973b2a103b77e066a1ceb96"`
[INFO] [stdout] 74d01cfa95b3493a4d61865ca86a05f02ac9aba57973b2a103b77e066a1ceb96
[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/gh/cmarshall10450/docker-version:/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] c82e1126b5d1630503d8b40e0a5803b08018d257a13f51792ccb76180ea8d3d0
[INFO] running `"docker" "start" "-a" "c82e1126b5d1630503d8b40e0a5803b08018d257a13f51792ccb76180ea8d3d0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/docker_version-96f098e77d568ea0
[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" "c82e1126b5d1630503d8b40e0a5803b08018d257a13f51792ccb76180ea8d3d0"`
[INFO] running `"docker" "rm" "-f" "c82e1126b5d1630503d8b40e0a5803b08018d257a13f51792ccb76180ea8d3d0"`
[INFO] [stdout] c82e1126b5d1630503d8b40e0a5803b08018d257a13f51792ccb76180ea8d3d0