[INFO] updating cached repository Ragnaroek/libmaze
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ragnaroek/libmaze
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ragnaroek/libmaze" "work/ex/beta-1.38-1/sources/1.37.0/gh/Ragnaroek/libmaze"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Ragnaroek/libmaze'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ragnaroek/libmaze" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnaroek/libmaze"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnaroek/libmaze'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b8764b6549f242978cdccbc3c9810a148eb372d
[INFO] sha for GitHub repo Ragnaroek/libmaze: 5b8764b6549f242978cdccbc3c9810a148eb372d
[INFO] validating manifest of Ragnaroek/libmaze 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 Ragnaroek/libmaze 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 Ragnaroek/libmaze
[INFO] finished frobbing Ragnaroek/libmaze
[INFO] frobbed toml for Ragnaroek/libmaze written to work/ex/beta-1.38-1/sources/1.37.0/gh/Ragnaroek/libmaze/Cargo.toml
[INFO] started frobbing Ragnaroek/libmaze
[INFO] finished frobbing Ragnaroek/libmaze
[INFO] frobbed toml for Ragnaroek/libmaze written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnaroek/libmaze/Cargo.toml
[INFO] crate Ragnaroek/libmaze 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 Ragnaroek/libmaze against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnaroek/libmaze:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] dcc6774806d89bf42eeef9323fab4d1ab6c577cfdf33603ec8eead1451118b99
[INFO] running `"docker" "start" "-a" "dcc6774806d89bf42eeef9323fab4d1ab6c577cfdf33603ec8eead1451118b99"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.22
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling maze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
[INFO] running `"docker" "inspect" "dcc6774806d89bf42eeef9323fab4d1ab6c577cfdf33603ec8eead1451118b99"`
[INFO] running `"docker" "rm" "-f" "dcc6774806d89bf42eeef9323fab4d1ab6c577cfdf33603ec8eead1451118b99"`
[INFO] [stdout] dcc6774806d89bf42eeef9323fab4d1ab6c577cfdf33603ec8eead1451118b99
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnaroek/libmaze:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3b8c189e6bff629de8ce928cee07398bf6741026347d63e9558df15fdb30c522
[INFO] running `"docker" "start" "-a" "3b8c189e6bff629de8ce928cee07398bf6741026347d63e9558df15fdb30c522"`
[INFO] [stderr]    Compiling maze v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "3b8c189e6bff629de8ce928cee07398bf6741026347d63e9558df15fdb30c522"`
[INFO] running `"docker" "rm" "-f" "3b8c189e6bff629de8ce928cee07398bf6741026347d63e9558df15fdb30c522"`
[INFO] [stdout] 3b8c189e6bff629de8ce928cee07398bf6741026347d63e9558df15fdb30c522
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ragnaroek/libmaze:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 73562187da28fcda2ba3ed9ea0dfb5983cae99a799ee7172bbb6bb7fe030489e
[INFO] running `"docker" "start" "-a" "73562187da28fcda2ba3ed9ea0dfb5983cae99a799ee7172bbb6bb7fe030489e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/maze-7577f7e5414413c1
[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/maze-bec4652324ac81a7
[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/meta-720f0f36bceedf4b
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test should_set_distance ... ok
[INFO] [stdout] test should_init_distance_struct_with_all_zeros ... ok
[INFO] [stdout] test should_be_dead_end_only_if_cell_has_three_walls ... ok
[INFO] [stdout] test should_convert_max_u32_to_all_f_hex ... ok
[INFO] [stdout] test should_convert_all_zero_array_to_hex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/square_maze-cbde4652cbcea4f3
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test should_carve_some_walls ... ok
[INFO] [stdout] test should_get_neighbours ... ok
[INFO] [stdout] test should_have_all_cells_walled_after_init ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_on_wall_carving ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_on_neighbours ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_on_wall_access ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/visited-27c9cf6aab0072b3
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test should_have_initial_visited_state_of_false ... ok
[INFO] [stdout] test should_get_visited_state_of_neighbour ... ok
[INFO] [stdout] test should_maintain_visited_state ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_for_neighbours_unvisited ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_for_visited ... ok
[INFO] [stdout] test should_panic_if_neighbour_out_of_range_for_neighbours_unvisited ... ok
[INFO] [stderr]    Doc-tests maze
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "73562187da28fcda2ba3ed9ea0dfb5983cae99a799ee7172bbb6bb7fe030489e"`
[INFO] running `"docker" "rm" "-f" "73562187da28fcda2ba3ed9ea0dfb5983cae99a799ee7172bbb6bb7fe030489e"`
[INFO] [stdout] 73562187da28fcda2ba3ed9ea0dfb5983cae99a799ee7172bbb6bb7fe030489e