[INFO] updating cached repository nilbold/spellthief
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nilbold/spellthief
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nilbold/spellthief" "work/ex/beta-1.37-6/sources/1.36.0/gh/nilbold/spellthief"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nilbold/spellthief'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nilbold/spellthief" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nilbold/spellthief"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nilbold/spellthief'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1681db91dfabdd3800bde80235fe71f1bcbbf19e
[INFO] sha for GitHub repo nilbold/spellthief: 1681db91dfabdd3800bde80235fe71f1bcbbf19e
[INFO] validating manifest of nilbold/spellthief on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nilbold/spellthief on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nilbold/spellthief
[INFO] finished frobbing nilbold/spellthief
[INFO] frobbed toml for nilbold/spellthief written to work/ex/beta-1.37-6/sources/1.36.0/gh/nilbold/spellthief/Cargo.toml
[INFO] started frobbing nilbold/spellthief
[INFO] finished frobbing nilbold/spellthief
[INFO] frobbed toml for nilbold/spellthief written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nilbold/spellthief/Cargo.toml
[INFO] crate nilbold/spellthief already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing nilbold/spellthief against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nilbold/spellthief:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 9c5955f943e753d20cfaeba3f82e400848ee2234bea2cd499f663e3acecdeb1b
[INFO] running `"docker" "start" "-a" "9c5955f943e753d20cfaeba3f82e400848ee2234bea2cd499f663e3acecdeb1b"`
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling spellthief v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Io`
[INFO] [stderr]   --> src/error.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 |    Io(io::Error),
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.84s
[INFO] running `"docker" "inspect" "9c5955f943e753d20cfaeba3f82e400848ee2234bea2cd499f663e3acecdeb1b"`
[INFO] running `"docker" "rm" "-f" "9c5955f943e753d20cfaeba3f82e400848ee2234bea2cd499f663e3acecdeb1b"`
[INFO] [stdout] 9c5955f943e753d20cfaeba3f82e400848ee2234bea2cd499f663e3acecdeb1b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nilbold/spellthief:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 36a67c95111818ab49cb194df97c7ab82c17204c6d4eae83cbad261f79ef6f57
[INFO] running `"docker" "start" "-a" "36a67c95111818ab49cb194df97c7ab82c17204c6d4eae83cbad261f79ef6f57"`
[INFO] [stderr]    Compiling spellthief v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Io`
[INFO] [stderr]   --> src/error.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 |    Io(io::Error),
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "36a67c95111818ab49cb194df97c7ab82c17204c6d4eae83cbad261f79ef6f57"`
[INFO] running `"docker" "rm" "-f" "36a67c95111818ab49cb194df97c7ab82c17204c6d4eae83cbad261f79ef6f57"`
[INFO] [stdout] 36a67c95111818ab49cb194df97c7ab82c17204c6d4eae83cbad261f79ef6f57
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nilbold/spellthief:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 07dc871fc82b108ae36d9c9cafc0a247af24d135135571a3d1382ac6399bc837
[INFO] running `"docker" "start" "-a" "07dc871fc82b108ae36d9c9cafc0a247af24d135135571a3d1382ac6399bc837"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/spellthief-d69d9e6a27c6cf38
[INFO] [stderr]      Running /opt/crater/target/debug/deps/spellthief-862a05e716b104e1
[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] [stdout] 
[INFO] [stderr]    Doc-tests spellthief
[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] [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" "07dc871fc82b108ae36d9c9cafc0a247af24d135135571a3d1382ac6399bc837"`
[INFO] running `"docker" "rm" "-f" "07dc871fc82b108ae36d9c9cafc0a247af24d135135571a3d1382ac6399bc837"`
[INFO] [stdout] 07dc871fc82b108ae36d9c9cafc0a247af24d135135571a3d1382ac6399bc837