[INFO] cloning repository https://github.com/snoyberg/rummikub-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snoyberg/rummikub-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnoyberg%2Frummikub-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnoyberg%2Frummikub-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10b65c6c5e7b855ff687a6b2640f29c97d6d1a0f
[INFO] testing snoyberg/rummikub-solver against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnoyberg%2Frummikub-solver" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/snoyberg/rummikub-solver on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/snoyberg/rummikub-solver
[INFO] finished tweaking git repo https://github.com/snoyberg/rummikub-solver
[INFO] tweaked toml for git repo https://github.com/snoyberg/rummikub-solver written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/snoyberg/rummikub-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", 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] ec6d4093a8e8eebd7617d9ef3d75da496a85f99b40d21e9b6368db1ecca9a212
[INFO] running `Command { std: "docker" "start" "-a" "ec6d4093a8e8eebd7617d9ef3d75da496a85f99b40d21e9b6368db1ecca9a212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec6d4093a8e8eebd7617d9ef3d75da496a85f99b40d21e9b6368db1ecca9a212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6d4093a8e8eebd7617d9ef3d75da496a85f99b40d21e9b6368db1ecca9a212", kill_on_drop: false }`
[INFO] [stdout] ec6d4093a8e8eebd7617d9ef3d75da496a85f99b40d21e9b6368db1ecca9a212
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 177d66a2149bc058b102ea8dda0046fb609333bd92cba46dc25eca63968b12cb
[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" "177d66a2149bc058b102ea8dda0046fb609333bd92cba46dc25eca63968b12cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rummikub-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(impl_trait_in_bindings)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "177d66a2149bc058b102ea8dda0046fb609333bd92cba46dc25eca63968b12cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "177d66a2149bc058b102ea8dda0046fb609333bd92cba46dc25eca63968b12cb", kill_on_drop: false }`
[INFO] [stdout] 177d66a2149bc058b102ea8dda0046fb609333bd92cba46dc25eca63968b12cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] e8e4640d63830ac8711acf40bc8a9f0445fe87fc03ee04764d74aa1455610473
[INFO] running `Command { std: "docker" "start" "-a" "e8e4640d63830ac8711acf40bc8a9f0445fe87fc03ee04764d74aa1455610473", kill_on_drop: false }`
[INFO] [stderr]    Compiling rummikub-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(impl_trait_in_bindings)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "e8e4640d63830ac8711acf40bc8a9f0445fe87fc03ee04764d74aa1455610473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8e4640d63830ac8711acf40bc8a9f0445fe87fc03ee04764d74aa1455610473", kill_on_drop: false }`
[INFO] [stdout] e8e4640d63830ac8711acf40bc8a9f0445fe87fc03ee04764d74aa1455610473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 7703067c157432ecc2796568557b92c3ea4e77291f4ef0e08a98bd4f2a0395af
[INFO] running `Command { std: "docker" "start" "-a" "7703067c157432ecc2796568557b92c3ea4e77291f4ef0e08a98bd4f2a0395af", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(impl_trait_in_bindings)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rummikub_solver-09a7ccd25593e60a)
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test solve::test::test_can_use_jokers_run ... ok
[INFO] [stdout] test solve::test::test_four ... ok
[INFO] [stdout] test solve::test::test_joker_and_12_run ... ok
[INFO] [stdout] test solve::test::test_longer_run ... ok
[INFO] [stdout] test solve::test::test_empty_board ... ok
[INFO] [stdout] test tiles::test::test_add_once ... ok
[INFO] [stdout] test solve::test::test_must_be_different_colors ... ok
[INFO] [stdout] test solve::test::test_simple_run ... ok
[INFO] [stdout] test tiles::test::test_add_thrice_fails ... ok
[INFO] [stdout] test tiles::test::test_add_twice ... ok
[INFO] [stdout] test solve::test::test_can_use_jokers_triple ... ok
[INFO] [stdout] test solve::test::test_simple_triple_no_black ... ok
[INFO] [stdout] test tiles::test::test_empty_tiles ... ok
[INFO] [stdout] test solve::test::test_simple_triple ... ok
[INFO] [stdout] test solve::test::test_double_run ... ok
[INFO] [stdout] test solve::test::test_single_tile ... ok
[INFO] [stdout] test solve::test::test_run_must_be_same_color ... ok
[INFO] [stdout] test tiles::test::test_parse_case ... ok
[INFO] [stdout] test tiles::test::test_tile_count ... ok
[INFO] [stdout] test tiles::test::test_tile_index ... ok
[INFO] [stdout] test tiles::test::test_parse_numbers ... ok
[INFO] [stdout] test tiles::test::test_parse_one_joker ... ok
[INFO] [stdout] test tiles::test::test_has_joker ... ok
[INFO] [stdout] test tiles::test::test_parse_empty ... ok
[INFO] [stdout] test solve::test::test_need_two_natural_tiles ... ok
[INFO] [stdout] test tiles::test::test_parse_too_many_jokers ... ok
[INFO] [stdout] test tiles::test::test_parse_display ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7703067c157432ecc2796568557b92c3ea4e77291f4ef0e08a98bd4f2a0395af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7703067c157432ecc2796568557b92c3ea4e77291f4ef0e08a98bd4f2a0395af", kill_on_drop: false }`
[INFO] [stdout] 7703067c157432ecc2796568557b92c3ea4e77291f4ef0e08a98bd4f2a0395af