[INFO] updating cached repository samsymons/Labyrinth
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/samsymons/Labyrinth
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/samsymons/Labyrinth" "work/ex/beta-1.37-6/sources/1.36.0/gh/samsymons/Labyrinth"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/samsymons/Labyrinth'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/samsymons/Labyrinth" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/samsymons/Labyrinth"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/samsymons/Labyrinth'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 26b7b9c00458a28956e09ba7346b768b1636f7b1
[INFO] sha for GitHub repo samsymons/Labyrinth: 26b7b9c00458a28956e09ba7346b768b1636f7b1
[INFO] validating manifest of samsymons/Labyrinth 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 samsymons/Labyrinth 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 samsymons/Labyrinth
[INFO] finished frobbing samsymons/Labyrinth
[INFO] frobbed toml for samsymons/Labyrinth written to work/ex/beta-1.37-6/sources/1.36.0/gh/samsymons/Labyrinth/Cargo.toml
[INFO] started frobbing samsymons/Labyrinth
[INFO] finished frobbing samsymons/Labyrinth
[INFO] frobbed toml for samsymons/Labyrinth written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/samsymons/Labyrinth/Cargo.toml
[INFO] crate samsymons/Labyrinth 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/samsymons/Labyrinth/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] testing samsymons/Labyrinth against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/samsymons/Labyrinth:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a317c0498671aa453d6616942b4df168ca3f852760e35d1a9da4604c566b078d
[INFO] running `"docker" "start" "-a" "a317c0498671aa453d6616942b4df168ca3f852760e35d1a9da4604c566b078d"`
[INFO] [stderr]    Compiling labyrinth v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> src/model/test.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `"docker" "inspect" "a317c0498671aa453d6616942b4df168ca3f852760e35d1a9da4604c566b078d"`
[INFO] running `"docker" "rm" "-f" "a317c0498671aa453d6616942b4df168ca3f852760e35d1a9da4604c566b078d"`
[INFO] [stdout] a317c0498671aa453d6616942b4df168ca3f852760e35d1a9da4604c566b078d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/samsymons/Labyrinth:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0c8d7d967aff1fad286dd86c085f059404dc8d74d4461892a9b402d104f10c36
[INFO] running `"docker" "start" "-a" "0c8d7d967aff1fad286dd86c085f059404dc8d74d4461892a9b402d104f10c36"`
[INFO] [stderr]    Compiling labyrinth v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "0c8d7d967aff1fad286dd86c085f059404dc8d74d4461892a9b402d104f10c36"`
[INFO] running `"docker" "rm" "-f" "0c8d7d967aff1fad286dd86c085f059404dc8d74d4461892a9b402d104f10c36"`
[INFO] [stdout] 0c8d7d967aff1fad286dd86c085f059404dc8d74d4461892a9b402d104f10c36
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/samsymons/Labyrinth:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 8b8efad44b40b18c99bcdaf100ae0414f1d9b8f26b64532603111d3550159a57
[INFO] running `"docker" "start" "-a" "8b8efad44b40b18c99bcdaf100ae0414f1d9b8f26b64532603111d3550159a57"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/labyrinth-01af54e7b574a1b9
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test model::test::test_grid_initialization ... ok
[INFO] [stdout] test model::test::test_grid_cell_retrieval ... ok
[INFO] [stdout] test model::test::test_cell_equality ... ok
[INFO] [stdout] test model::test::test_cell_initialization ... ok
[INFO] [stdout] test model::test::test_grid_iteration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8b8efad44b40b18c99bcdaf100ae0414f1d9b8f26b64532603111d3550159a57"`
[INFO] running `"docker" "rm" "-f" "8b8efad44b40b18c99bcdaf100ae0414f1d9b8f26b64532603111d3550159a57"`
[INFO] [stdout] 8b8efad44b40b18c99bcdaf100ae0414f1d9b8f26b64532603111d3550159a57