[INFO] updating cached repository DevOrc/mazer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DevOrc/mazer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DevOrc/mazer" "work/ex/beta-1.38-1/sources/1.37.0/gh/DevOrc/mazer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DevOrc/mazer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DevOrc/mazer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DevOrc/mazer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DevOrc/mazer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c4a397f20d6cc9adaab0dfb02edd96f6edef0f75
[INFO] sha for GitHub repo DevOrc/mazer: c4a397f20d6cc9adaab0dfb02edd96f6edef0f75
[INFO] validating manifest of DevOrc/mazer 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 DevOrc/mazer 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 DevOrc/mazer
[INFO] finished frobbing DevOrc/mazer
[INFO] frobbed toml for DevOrc/mazer written to work/ex/beta-1.38-1/sources/1.37.0/gh/DevOrc/mazer/Cargo.toml
[INFO] started frobbing DevOrc/mazer
[INFO] finished frobbing DevOrc/mazer
[INFO] frobbed toml for DevOrc/mazer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DevOrc/mazer/Cargo.toml
[INFO] crate DevOrc/mazer 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 DevOrc/mazer 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DevOrc/mazer:/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] b3c9912e49c03c3ff7c6984ba34d9a26d0671134a86c67ad15cbf43223beefb5
[INFO] running `"docker" "start" "-a" "b3c9912e49c03c3ff7c6984ba34d9a26d0671134a86c67ad15cbf43223beefb5"`
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.15.0
[INFO] [stderr]    Compiling mazer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `maze_map`
[INFO] [stderr]   --> src/lib.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let maze_map = parser::parse(maze_data);
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_maze_map`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.56s
[INFO] running `"docker" "inspect" "b3c9912e49c03c3ff7c6984ba34d9a26d0671134a86c67ad15cbf43223beefb5"`
[INFO] running `"docker" "rm" "-f" "b3c9912e49c03c3ff7c6984ba34d9a26d0671134a86c67ad15cbf43223beefb5"`
[INFO] [stdout] b3c9912e49c03c3ff7c6984ba34d9a26d0671134a86c67ad15cbf43223beefb5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DevOrc/mazer:/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] 7d493f1d005b6e945a8915250b32436b0bf6e9ca6ada75adda152b38fb68a7da
[INFO] running `"docker" "start" "-a" "7d493f1d005b6e945a8915250b32436b0bf6e9ca6ada75adda152b38fb68a7da"`
[INFO] [stderr]    Compiling mazer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `maze_map`
[INFO] [stderr]   --> src/lib.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let maze_map = parser::parse(maze_data);
[INFO] [stderr]    |         ^^^^^^^^ help: consider prefixing with an underscore: `_maze_map`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "7d493f1d005b6e945a8915250b32436b0bf6e9ca6ada75adda152b38fb68a7da"`
[INFO] running `"docker" "rm" "-f" "7d493f1d005b6e945a8915250b32436b0bf6e9ca6ada75adda152b38fb68a7da"`
[INFO] [stdout] 7d493f1d005b6e945a8915250b32436b0bf6e9ca6ada75adda152b38fb68a7da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DevOrc/mazer:/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] f29b95c38b464f9c5609f5aa35ffadc8af1676aeeee4aaee7c9a34d66c238d2c
[INFO] running `"docker" "start" "-a" "f29b95c38b464f9c5609f5aa35ffadc8af1676aeeee4aaee7c9a34d66c238d2c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mazer-fa3345f0bf4e915d
[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] [stderr]      Running /opt/crater/target/debug/deps/mazer-7ea9ce1ec97a9080
[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] [stderr]    Doc-tests mazer
[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" "f29b95c38b464f9c5609f5aa35ffadc8af1676aeeee4aaee7c9a34d66c238d2c"`
[INFO] running `"docker" "rm" "-f" "f29b95c38b464f9c5609f5aa35ffadc8af1676aeeee4aaee7c9a34d66c238d2c"`
[INFO] [stdout] f29b95c38b464f9c5609f5aa35ffadc8af1676aeeee4aaee7c9a34d66c238d2c