[INFO] fetching crate rust_reversi 0.1.0...
[INFO] testing rust_reversi-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate rust_reversi 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rust_reversi 0.1.0
[INFO] finished tweaking crates.io crate rust_reversi 0.1.0
[INFO] tweaked toml for crates.io crate rust_reversi 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_reversi 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_reversi 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17955c997b5d65b058529dc56094e37cf7d092893e29b1ad0af7a7787a9a418a
[INFO] running `Command { std: "docker" "start" "-a" "17955c997b5d65b058529dc56094e37cf7d092893e29b1ad0af7a7787a9a418a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17955c997b5d65b058529dc56094e37cf7d092893e29b1ad0af7a7787a9a418a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17955c997b5d65b058529dc56094e37cf7d092893e29b1ad0af7a7787a9a418a", kill_on_drop: false }`
[INFO] [stdout] 17955c997b5d65b058529dc56094e37cf7d092893e29b1ad0af7a7787a9a418a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abd172a7157440bc5ba91efa55192188acb1ef4b1967342bbba768d5000103db
[INFO] running `Command { std: "docker" "start" "-a" "abd172a7157440bc5ba91efa55192188acb1ef4b1967342bbba768d5000103db", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_reversi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tile.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn iter_tile(&self) -> TileIter {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn iter_tile(&self) -> TileIter<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "abd172a7157440bc5ba91efa55192188acb1ef4b1967342bbba768d5000103db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd172a7157440bc5ba91efa55192188acb1ef4b1967342bbba768d5000103db", kill_on_drop: false }`
[INFO] [stdout] abd172a7157440bc5ba91efa55192188acb1ef4b1967342bbba768d5000103db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97250322b6d3e55bdb7755bbbfc2384b9c0e0c5757eebeb9283efa98370e69e1
[INFO] running `Command { std: "docker" "start" "-a" "97250322b6d3e55bdb7755bbbfc2384b9c0e0c5757eebeb9283efa98370e69e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_reversi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tile.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn iter_tile(&self) -> TileIter {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn iter_tile(&self) -> TileIter<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tile.rs:43:22
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn iter_tile(&self) -> TileIter {
[INFO] [stdout]    |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn iter_tile(&self) -> TileIter<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "97250322b6d3e55bdb7755bbbfc2384b9c0e0c5757eebeb9283efa98370e69e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97250322b6d3e55bdb7755bbbfc2384b9c0e0c5757eebeb9283efa98370e69e1", kill_on_drop: false }`
[INFO] [stdout] 97250322b6d3e55bdb7755bbbfc2384b9c0e0c5757eebeb9283efa98370e69e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16bd2190b6c8495d9cd3f617a404e3a6e0bdb76931356c8e8980dcbfbf76260e
[INFO] running `Command { std: "docker" "start" "-a" "16bd2190b6c8495d9cd3f617a404e3a6e0bdb76931356c8e8980dcbfbf76260e", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/tile.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn iter_tile(&self) -> TileIter {
[INFO] [stderr]    |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn iter_tile(&self) -> TileIter<'_> {
[INFO] [stderr]    |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_reversi` (lib) generated 1 warning (run `cargo fix --lib -p rust_reversi` to apply 1 suggestion)
[INFO] [stderr] warning: `rust_reversi` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_reversi-665ca341f6f28536)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test board::tests::test_can_change_piece_line ... ok
[INFO] [stdout] test board::tests::test_is_end_nosquare_false ... ok
[INFO] [stdout] test board::tests::test_can_put_piece ... ok
[INFO] [stdout] test board::tests::test_is_end_one_color_false ... ok
[INFO] [stdout] test board::tests::test_is_end_one_color_true ... ok
[INFO] [stdout] test board::tests::test_get_winner_none ... ok
[INFO] [stdout] test board::tests::test_ng_is_skip ... ok
[INFO] [stdout] test board::tests::test_is_next_to_piece ... ok
[INFO] [stdout] test board::tests::test_ok_is_skip ... ok
[INFO] [stdout] test board::tests::test_get_winner_white ... ok
[INFO] [stdout] test board::tests::test_get_winner_black ... ok
[INFO] [stdout] test board::tests::test_is_end_nosquare_true ... ok
[INFO] [stderr]      Running unittests src/bin/main.rs (/opt/rustwide/target/debug/deps/main-6f3e6f364a603a0b)
[INFO] [stdout] test board::tests::test_can_put_piece2 ... ok
[INFO] [stderr]    Doc-tests rust_reversi
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "16bd2190b6c8495d9cd3f617a404e3a6e0bdb76931356c8e8980dcbfbf76260e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16bd2190b6c8495d9cd3f617a404e3a6e0bdb76931356c8e8980dcbfbf76260e", kill_on_drop: false }`
[INFO] [stdout] 16bd2190b6c8495d9cd3f617a404e3a6e0bdb76931356c8e8980dcbfbf76260e