[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 try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnoyberg%2Frummikub-solver" "/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/snoyberg/rummikub-solver on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93bd37c8e58ebc21262c9e3facb6b099fa7365c079b23264affcc82bcd5c8d58
[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" "93bd37c8e58ebc21262c9e3facb6b099fa7365c079b23264affcc82bcd5c8d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93bd37c8e58ebc21262c9e3facb6b099fa7365c079b23264affcc82bcd5c8d58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93bd37c8e58ebc21262c9e3facb6b099fa7365c079b23264affcc82bcd5c8d58", kill_on_drop: false }`
[INFO] [stdout] 93bd37c8e58ebc21262c9e3facb6b099fa7365c079b23264affcc82bcd5c8d58
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64f29575248165e0d51937189509261aa6be0d481491397668b01013d12b3b7e
[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" "64f29575248165e0d51937189509261aa6be0d481491397668b01013d12b3b7e", 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 1.13s
[INFO] running `Command { std: "docker" "inspect" "64f29575248165e0d51937189509261aa6be0d481491397668b01013d12b3b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f29575248165e0d51937189509261aa6be0d481491397668b01013d12b3b7e", kill_on_drop: false }`
[INFO] [stdout] 64f29575248165e0d51937189509261aa6be0d481491397668b01013d12b3b7e
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fdaa78ad0eab988bfaec35dd99fd9f43500e76bfbc532a9c59c02dfbe7e1ddc
[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" "2fdaa78ad0eab988bfaec35dd99fd9f43500e76bfbc532a9c59c02dfbe7e1ddc", 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 1.41s
[INFO] running `Command { std: "docker" "inspect" "2fdaa78ad0eab988bfaec35dd99fd9f43500e76bfbc532a9c59c02dfbe7e1ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fdaa78ad0eab988bfaec35dd99fd9f43500e76bfbc532a9c59c02dfbe7e1ddc", kill_on_drop: false }`
[INFO] [stdout] 2fdaa78ad0eab988bfaec35dd99fd9f43500e76bfbc532a9c59c02dfbe7e1ddc
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2d43cd92add39e6cb8e6a42794d65bb59c3b9ba1fe5e891288fc0dcc33e02d7
[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" "b2d43cd92add39e6cb8e6a42794d65bb59c3b9ba1fe5e891288fc0dcc33e02d7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout] running 27 tests
[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 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rummikub_solver-b19bbc08c09d039b
[INFO] [stdout] test solve::test::test_can_use_jokers_run ... ok
[INFO] [stdout] test solve::test::test_double_run ... ok
[INFO] [stdout] test solve::test::test_can_use_jokers_triple ... ok
[INFO] [stdout] test solve::test::test_four ... ok
[INFO] [stdout] test solve::test::test_must_be_different_colors ... ok
[INFO] [stdout] test tiles::test::test_has_joker ... ok
[INFO] [stdout] test tiles::test::test_empty_tiles ... ok
[INFO] [stdout] test tiles::test::test_add_twice ... ok
[INFO] [stdout] test tiles::test::test_parse_case ... ok
[INFO] [stdout] test solve::test::test_longer_run ... ok
[INFO] [stdout] test solve::test::test_simple_triple ... ok
[INFO] [stdout] test solve::test::test_joker_and_12_run ... ok
[INFO] [stdout] test solve::test::test_simple_triple_no_black ... ok
[INFO] [stdout] test solve::test::test_single_tile ... ok
[INFO] [stdout] test solve::test::test_need_two_natural_tiles ... ok
[INFO] [stdout] test tiles::test::test_parse_empty ... ok
[INFO] [stdout] test tiles::test::test_add_thrice_fails ... ok
[INFO] [stdout] test tiles::test::test_parse_numbers ... 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_add_once ... ok
[INFO] [stdout] test tiles::test::test_parse_too_many_jokers ... ok
[INFO] [stdout] test solve::test::test_run_must_be_same_color ... ok
[INFO] [stdout] test solve::test::test_simple_run ... ok
[INFO] [stdout] test solve::test::test_empty_board ... ok
[INFO] [stdout] test tiles::test::test_parse_one_joker ... 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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b2d43cd92add39e6cb8e6a42794d65bb59c3b9ba1fe5e891288fc0dcc33e02d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d43cd92add39e6cb8e6a42794d65bb59c3b9ba1fe5e891288fc0dcc33e02d7", kill_on_drop: false }`
[INFO] [stdout] b2d43cd92add39e6cb8e6a42794d65bb59c3b9ba1fe5e891288fc0dcc33e02d7