[INFO] updating cached repository DennoDin/cc5-polyglottal-rust-graph
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DennoDin/cc5-polyglottal-rust-graph
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DennoDin/cc5-polyglottal-rust-graph" "work/ex/beta-1.38-1/sources/1.37.0/gh/DennoDin/cc5-polyglottal-rust-graph"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DennoDin/cc5-polyglottal-rust-graph'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DennoDin/cc5-polyglottal-rust-graph" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DennoDin/cc5-polyglottal-rust-graph"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DennoDin/cc5-polyglottal-rust-graph'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d30e76b44afa08274f0dfeb0697526dcc7579772
[INFO] sha for GitHub repo DennoDin/cc5-polyglottal-rust-graph: d30e76b44afa08274f0dfeb0697526dcc7579772
[INFO] validating manifest of DennoDin/cc5-polyglottal-rust-graph 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 DennoDin/cc5-polyglottal-rust-graph 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 DennoDin/cc5-polyglottal-rust-graph
[INFO] finished frobbing DennoDin/cc5-polyglottal-rust-graph
[INFO] frobbed toml for DennoDin/cc5-polyglottal-rust-graph written to work/ex/beta-1.38-1/sources/1.37.0/gh/DennoDin/cc5-polyglottal-rust-graph/Cargo.toml
[INFO] started frobbing DennoDin/cc5-polyglottal-rust-graph
[INFO] finished frobbing DennoDin/cc5-polyglottal-rust-graph
[INFO] frobbed toml for DennoDin/cc5-polyglottal-rust-graph written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DennoDin/cc5-polyglottal-rust-graph/Cargo.toml
[INFO] crate DennoDin/cc5-polyglottal-rust-graph 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 DennoDin/cc5-polyglottal-rust-graph 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DennoDin/cc5-polyglottal-rust-graph:/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] 50b1cf8e1632750cb6dfa8d26dd6173c3cb0adeecd4ad885602394202641ac2c
[INFO] running `"docker" "start" "-a" "50b1cf8e1632750cb6dfa8d26dd6173c3cb0adeecd4ad885602394202641ac2c"`
[INFO] [stderr]    Compiling graph-path v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `steps`
[INFO] [stderr]   --> src/main.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut steps: i8 = 0;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_steps`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut result: i8 = 32;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut steps: i8 = 0;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "50b1cf8e1632750cb6dfa8d26dd6173c3cb0adeecd4ad885602394202641ac2c"`
[INFO] running `"docker" "rm" "-f" "50b1cf8e1632750cb6dfa8d26dd6173c3cb0adeecd4ad885602394202641ac2c"`
[INFO] [stdout] 50b1cf8e1632750cb6dfa8d26dd6173c3cb0adeecd4ad885602394202641ac2c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DennoDin/cc5-polyglottal-rust-graph:/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] 828ca7f2e5622f044849e49f6556e04c91ba24bd4fab060173b40326719987da
[INFO] running `"docker" "start" "-a" "828ca7f2e5622f044849e49f6556e04c91ba24bd4fab060173b40326719987da"`
[INFO] [stderr]    Compiling graph-path v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `steps`
[INFO] [stderr]   --> src/main.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut steps: i8 = 0;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_steps`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut result: i8 = 32;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut steps: i8 = 0;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "828ca7f2e5622f044849e49f6556e04c91ba24bd4fab060173b40326719987da"`
[INFO] running `"docker" "rm" "-f" "828ca7f2e5622f044849e49f6556e04c91ba24bd4fab060173b40326719987da"`
[INFO] [stdout] 828ca7f2e5622f044849e49f6556e04c91ba24bd4fab060173b40326719987da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DennoDin/cc5-polyglottal-rust-graph:/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] 5f2669267372e26f63006e103234d4d7f872d780cd031b07360723b96be2478a
[INFO] running `"docker" "start" "-a" "5f2669267372e26f63006e103234d4d7f872d780cd031b07360723b96be2478a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/graph_path-a3181953ab9f772f
[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" "5f2669267372e26f63006e103234d4d7f872d780cd031b07360723b96be2478a"`
[INFO] running `"docker" "rm" "-f" "5f2669267372e26f63006e103234d4d7f872d780cd031b07360723b96be2478a"`
[INFO] [stdout] 5f2669267372e26f63006e103234d4d7f872d780cd031b07360723b96be2478a