[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 try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagnaroek%2Flibmaze" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ragnaroek/libmaze on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-4/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d54f12892753a958accb8510730ec922abed901b73e0eaa0bac418fe707389c9
[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" "d54f12892753a958accb8510730ec922abed901b73e0eaa0bac418fe707389c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d54f12892753a958accb8510730ec922abed901b73e0eaa0bac418fe707389c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54f12892753a958accb8510730ec922abed901b73e0eaa0bac418fe707389c9", kill_on_drop: false }`
[INFO] [stdout] d54f12892753a958accb8510730ec922abed901b73e0eaa0bac418fe707389c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--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] 4c3495740d392c18b1aefe78472eb423c6b86ba99ae92f6becdd7b0bd694d980
[INFO] running `Command { std: "docker" "start" "-a" "4c3495740d392c18b1aefe78472eb423c6b86ba99ae92f6becdd7b0bd694d980", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling getrandom v0.1.9
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[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 bytes v0.4.12
[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 4.06s
[INFO] running `Command { std: "docker" "inspect" "4c3495740d392c18b1aefe78472eb423c6b86ba99ae92f6becdd7b0bd694d980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c3495740d392c18b1aefe78472eb423c6b86ba99ae92f6becdd7b0bd694d980", kill_on_drop: false }`
[INFO] [stdout] 4c3495740d392c18b1aefe78472eb423c6b86ba99ae92f6becdd7b0bd694d980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] a9acdbb761fe96513c031f05101109d3bc412c892990a365ca3eece9b17f6a05
[INFO] running `Command { std: "docker" "start" "-a" "a9acdbb761fe96513c031f05101109d3bc412c892990a365ca3eece9b17f6a05", kill_on_drop: false }`
[INFO] [stderr]    Compiling maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "a9acdbb761fe96513c031f05101109d3bc412c892990a365ca3eece9b17f6a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9acdbb761fe96513c031f05101109d3bc412c892990a365ca3eece9b17f6a05", kill_on_drop: false }`
[INFO] [stdout] a9acdbb761fe96513c031f05101109d3bc412c892990a365ca3eece9b17f6a05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", 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] ec4ac448be1ae074acb258f3cd8d3c877980aafcc9753bb0baf9bd9258f2fd9f
[INFO] running `Command { std: "docker" "start" "-a" "ec4ac448be1ae074acb258f3cd8d3c877980aafcc9753bb0baf9bd9258f2fd9f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maze-7743c52bcc6c775e)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maze-f67af814c10d11c9)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/meta.rs (/opt/rustwide/target/debug/deps/meta-38883cb8efd0d20c)
[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_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_convert_max_u32_to_all_f_hex ... ok
[INFO] [stdout] test should_init_distance_struct_with_all_zeros ... ok
[INFO] [stdout] test should_set_distance ... 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/plm.rs (/opt/rustwide/target/debug/deps/plm-031650c79074bd19)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_output_and_read_back_tiny_maze ... ok
[INFO] [stdout] test test_output_and_read_back_tiny_maze_non_cubic ... ok
[INFO] [stdout] test test_output_plm ... ok
[INFO] [stdout] test test_output_and_read_back_bigger_maze ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running tests/square_maze.rs (/opt/rustwide/target/debug/deps/square_maze-eee7b1a1cb1fb9c4)
[INFO] [stdout] test should_carve_some_walls ... ok
[INFO] [stdout] test minimal_maze_carving ... ok
[INFO] [stdout] test should_get_neighbours ... ok
[INFO] [stdout] test should_carve_edge_walls ... ok
[INFO] [stdout] test generated_maze_edge_invariants ... ok
[INFO] [stdout] test should_have_all_cells_walled_after_init ... ok
[INFO] [stdout] test should_panic_if_index_out_of_range_on_wall_access ... 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] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/visited.rs (/opt/rustwide/target/debug/deps/visited-0ceb4b2701a6ed0e)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test should_get_visited_state_of_neighbour ... ok
[INFO] [stdout] test should_maintain_visited_state ... ok
[INFO] [stdout] test should_have_initial_visited_state_of_false ... ok
[INFO] [stderr]    Doc-tests maze
[INFO] [stdout] test should_panic_if_neighbour_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_index_out_of_range_for_neighbours_unvisited ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[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" "ec4ac448be1ae074acb258f3cd8d3c877980aafcc9753bb0baf9bd9258f2fd9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4ac448be1ae074acb258f3cd8d3c877980aafcc9753bb0baf9bd9258f2fd9f", kill_on_drop: false }`
[INFO] [stdout] ec4ac448be1ae074acb258f3cd8d3c877980aafcc9753bb0baf9bd9258f2fd9f