[INFO] updating cached repository dwelman/rust_doku
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dwelman/rust_doku
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dwelman/rust_doku" "work/ex/beta-1.38-1/sources/1.37.0/gh/dwelman/rust_doku"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dwelman/rust_doku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dwelman/rust_doku" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dwelman/rust_doku"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dwelman/rust_doku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 679f04ede33d32d423522e22164836e1a1374f9b
[INFO] sha for GitHub repo dwelman/rust_doku: 679f04ede33d32d423522e22164836e1a1374f9b
[INFO] validating manifest of dwelman/rust_doku 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 dwelman/rust_doku 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 dwelman/rust_doku
[INFO] finished frobbing dwelman/rust_doku
[INFO] frobbed toml for dwelman/rust_doku written to work/ex/beta-1.38-1/sources/1.37.0/gh/dwelman/rust_doku/Cargo.toml
[INFO] started frobbing dwelman/rust_doku
[INFO] finished frobbing dwelman/rust_doku
[INFO] frobbed toml for dwelman/rust_doku written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dwelman/rust_doku/Cargo.toml
[INFO] crate dwelman/rust_doku 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 dwelman/rust_doku 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dwelman/rust_doku:/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] e5173560c2ffae2319a2c216cb95e90787ea0e59cf7a8cc03727000c7ac01b5d
[INFO] running `"docker" "start" "-a" "e5173560c2ffae2319a2c216cb95e90787ea0e59cf7a8cc03727000c7ac01b5d"`
[INFO] [stderr]    Compiling rust_doku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/puzzle_logic.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use error;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "e5173560c2ffae2319a2c216cb95e90787ea0e59cf7a8cc03727000c7ac01b5d"`
[INFO] running `"docker" "rm" "-f" "e5173560c2ffae2319a2c216cb95e90787ea0e59cf7a8cc03727000c7ac01b5d"`
[INFO] [stdout] e5173560c2ffae2319a2c216cb95e90787ea0e59cf7a8cc03727000c7ac01b5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dwelman/rust_doku:/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] 568b56b31c8881eb5c7a8d555383401cc6be46a31969f64643f6665c2cb831d1
[INFO] running `"docker" "start" "-a" "568b56b31c8881eb5c7a8d555383401cc6be46a31969f64643f6665c2cb831d1"`
[INFO] [stderr]    Compiling rust_doku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/puzzle_logic.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use error;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "568b56b31c8881eb5c7a8d555383401cc6be46a31969f64643f6665c2cb831d1"`
[INFO] running `"docker" "rm" "-f" "568b56b31c8881eb5c7a8d555383401cc6be46a31969f64643f6665c2cb831d1"`
[INFO] [stdout] 568b56b31c8881eb5c7a8d555383401cc6be46a31969f64643f6665c2cb831d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dwelman/rust_doku:/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] 3d62a04584ac4f2e1e72a3d5bbdf5cbbb49b045bc860b7412c2c4cd636bc885f
[INFO] running `"docker" "start" "-a" "3d62a04584ac4f2e1e72a3d5bbdf5cbbb49b045bc860b7412c2c4cd636bc885f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_doku-7178de9f61ea873b
[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" "3d62a04584ac4f2e1e72a3d5bbdf5cbbb49b045bc860b7412c2c4cd636bc885f"`
[INFO] running `"docker" "rm" "-f" "3d62a04584ac4f2e1e72a3d5bbdf5cbbb49b045bc860b7412c2c4cd636bc885f"`
[INFO] [stdout] 3d62a04584ac4f2e1e72a3d5bbdf5cbbb49b045bc860b7412c2c4cd636bc885f