[INFO] cloning repository https://github.com/Ragnaroek/libmaze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ragnaroek/libmaze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagnaroek%2Flibmaze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagnaroek%2Flibmaze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d55342d226d09f967a608c1782955dac6208bb9
[INFO] testing Ragnaroek/libmaze against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagnaroek%2Flibmaze" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ragnaroek/libmaze on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ragnaroek/libmaze
[INFO] finished tweaking git repo https://github.com/Ragnaroek/libmaze
[INFO] tweaked toml for git repo https://github.com/Ragnaroek/libmaze written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Ragnaroek/libmaze already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42b9a3b1e3bf6b2a443c44d2c929e4145f8f613a27adb089b248b2f41b085b15
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42b9a3b1e3bf6b2a443c44d2c929e4145f8f613a27adb089b248b2f41b085b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42b9a3b1e3bf6b2a443c44d2c929e4145f8f613a27adb089b248b2f41b085b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42b9a3b1e3bf6b2a443c44d2c929e4145f8f613a27adb089b248b2f41b085b15", kill_on_drop: false }`
[INFO] [stdout] 42b9a3b1e3bf6b2a443c44d2c929e4145f8f613a27adb089b248b2f41b085b15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa1e7bfe14ace79baf7a164bd4ee033588a9deb35fa743dcc01c4f4b86f669b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fa1e7bfe14ace79baf7a164bd4ee033588a9deb35fa743dcc01c4f4b86f669b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.9
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.52s
[INFO] running `Command { std: "docker" "inspect" "fa1e7bfe14ace79baf7a164bd4ee033588a9deb35fa743dcc01c4f4b86f669b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1e7bfe14ace79baf7a164bd4ee033588a9deb35fa743dcc01c4f4b86f669b4", kill_on_drop: false }`
[INFO] [stdout] fa1e7bfe14ace79baf7a164bd4ee033588a9deb35fa743dcc01c4f4b86f669b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6fb11f23b6461c949d8b8d6e28cbbb801ff2e680abfbabb4e6623a3d97a88995
[INFO] running `Command { std: "docker" "start" "-a" "6fb11f23b6461c949d8b8d6e28cbbb801ff2e680abfbabb4e6623a3d97a88995", kill_on_drop: false }`
[INFO] [stderr]    Compiling maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `Command { std: "docker" "inspect" "6fb11f23b6461c949d8b8d6e28cbbb801ff2e680abfbabb4e6623a3d97a88995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb11f23b6461c949d8b8d6e28cbbb801ff2e680abfbabb4e6623a3d97a88995", kill_on_drop: false }`
[INFO] [stdout] 6fb11f23b6461c949d8b8d6e28cbbb801ff2e680abfbabb4e6623a3d97a88995
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10b469fc68d2fb1a1892d55f2b5f5d51769946d8e296efb1a223ccc4c197240a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "10b469fc68d2fb1a1892d55f2b5f5d51769946d8e296efb1a223ccc4c197240a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maze-0df33fff6ef2789d)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maze-1ce0de0c260105df)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/meta.rs (/opt/rustwide/target/debug/deps/meta-2dde01dfe3013de2)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test should_set_distance ... ok
[INFO] [stdout] test should_convert_all_zero_array_to_hex ... ok
[INFO] [stdout] test should_be_dead_end_only_if_cell_has_three_walls ... ok
[INFO] [stdout] test should_init_distance_struct_with_all_zeros ... ok
[INFO] [stderr]      Running tests/plm.rs (/opt/rustwide/target/debug/deps/plm-04bc3658e330f13e)
[INFO] [stdout] test should_convert_max_u32_to_all_f_hex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/square_maze.rs (/opt/rustwide/target/debug/deps/square_maze-29a4f29465bfe1fd)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_output_plm ... ok
[INFO] [stdout] test test_output_and_read_back_tiny_maze_non_cubic ... ok
[INFO] [stdout] test test_output_and_read_back_bigger_maze ... ok
[INFO] [stdout] test test_output_and_read_back_tiny_maze ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test should_carve_edge_walls ... ok
[INFO] [stdout] test should_get_neighbours ... ok
[INFO] [stdout] test should_have_all_cells_walled_after_init ... ok
[INFO] [stdout] test minimal_maze_carving ... ok
[INFO] [stdout] test generated_maze_edge_invariants ... ok
[INFO] [stdout] test should_carve_some_walls ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_on_wall_carving - should panic ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_on_neighbours - should panic ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_on_wall_access - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/visited.rs (/opt/rustwide/target/debug/deps/visited-902f8de88110a212)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test should_get_visited_state_of_neighbour ... ok
[INFO] [stdout] test should_have_initial_visited_state_of_false ... ok
[INFO] [stdout] test should_maintain_visited_state ... ok
[INFO] [stderr]    Doc-tests maze
[INFO] [stdout] test should_panic_if_index_out_of_range_for_neighbours_unvisited - should panic ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_for_visited - should panic ... ok
[INFO] [stdout] test should_panic_if_neighbour_out_of_range_for_neighbours_unvisited - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "10b469fc68d2fb1a1892d55f2b5f5d51769946d8e296efb1a223ccc4c197240a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b469fc68d2fb1a1892d55f2b5f5d51769946d8e296efb1a223ccc4c197240a", kill_on_drop: false }`
[INFO] [stdout] 10b469fc68d2fb1a1892d55f2b5f5d51769946d8e296efb1a223ccc4c197240a