[INFO] updating cached repository terakun/spanning_tree_maze
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/terakun/spanning_tree_maze
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/terakun/spanning_tree_maze" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/terakun/spanning_tree_maze"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/terakun/spanning_tree_maze'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/terakun/spanning_tree_maze" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/terakun/spanning_tree_maze"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/terakun/spanning_tree_maze'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7d76ea3667cf2b8d531d7634fb620d8387038961
[INFO] sha for GitHub repo terakun/spanning_tree_maze: 7d76ea3667cf2b8d531d7634fb620d8387038961
[INFO] validating manifest of terakun/spanning_tree_maze on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of terakun/spanning_tree_maze on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing terakun/spanning_tree_maze
[INFO] finished frobbing terakun/spanning_tree_maze
[INFO] frobbed toml for terakun/spanning_tree_maze written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/terakun/spanning_tree_maze/Cargo.toml
[INFO] started frobbing terakun/spanning_tree_maze
[INFO] finished frobbing terakun/spanning_tree_maze
[INFO] frobbed toml for terakun/spanning_tree_maze written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/terakun/spanning_tree_maze/Cargo.toml
[INFO] crate terakun/spanning_tree_maze has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing terakun/spanning_tree_maze against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/terakun/spanning_tree_maze:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] f8831bdf691b0999613a1d90954e93184eee577e804363b597ac384ada0fa7eb
[INFO] running `"docker" "start" "-a" "f8831bdf691b0999613a1d90954e93184eee577e804363b597ac384ada0fa7eb"`
[INFO] [stderr]    Compiling spanning_tree_maze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "f8831bdf691b0999613a1d90954e93184eee577e804363b597ac384ada0fa7eb"`
[INFO] running `"docker" "rm" "-f" "f8831bdf691b0999613a1d90954e93184eee577e804363b597ac384ada0fa7eb"`
[INFO] [stdout] f8831bdf691b0999613a1d90954e93184eee577e804363b597ac384ada0fa7eb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/terakun/spanning_tree_maze:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8d6d94b33ccdbc66123bea78f4d7e116c42e539d1bd21db334eeaf2fc3884711
[INFO] running `"docker" "start" "-a" "8d6d94b33ccdbc66123bea78f4d7e116c42e539d1bd21db334eeaf2fc3884711"`
[INFO] [stderr]    Compiling spanning_tree_maze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "8d6d94b33ccdbc66123bea78f4d7e116c42e539d1bd21db334eeaf2fc3884711"`
[INFO] running `"docker" "rm" "-f" "8d6d94b33ccdbc66123bea78f4d7e116c42e539d1bd21db334eeaf2fc3884711"`
[INFO] [stdout] 8d6d94b33ccdbc66123bea78f4d7e116c42e539d1bd21db334eeaf2fc3884711
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/terakun/spanning_tree_maze:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] d42dccf35cf6fcf9fc2c1881fd5651aa1decb04eefca34433a13bea63c7915be
[INFO] running `"docker" "start" "-a" "d42dccf35cf6fcf9fc2c1881fd5651aa1decb04eefca34433a13bea63c7915be"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/spanning_tree_maze-004683f01422b763
[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" "d42dccf35cf6fcf9fc2c1881fd5651aa1decb04eefca34433a13bea63c7915be"`
[INFO] running `"docker" "rm" "-f" "d42dccf35cf6fcf9fc2c1881fd5651aa1decb04eefca34433a13bea63c7915be"`
[INFO] [stdout] d42dccf35cf6fcf9fc2c1881fd5651aa1decb04eefca34433a13bea63c7915be