[INFO] fetching crate flipflop 0.2.0...
[INFO] testing flipflop-0.2.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate flipflop 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate flipflop 0.2.0
[INFO] finished tweaking crates.io crate flipflop 0.2.0
[INFO] tweaked toml for crates.io crate flipflop 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flipflop 0.2.0 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 flipflop 0.2.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6cff7d30e48a11c761a345239418a60449ca8343217575bca66c289003739cef
[INFO] running `Command { std: "docker" "start" "-a" "6cff7d30e48a11c761a345239418a60449ca8343217575bca66c289003739cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cff7d30e48a11c761a345239418a60449ca8343217575bca66c289003739cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cff7d30e48a11c761a345239418a60449ca8343217575bca66c289003739cef", kill_on_drop: false }`
[INFO] [stdout] 6cff7d30e48a11c761a345239418a60449ca8343217575bca66c289003739cef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e3dfa4b506476825ed25f4883e12cc948679e6ccf07c9a96f6950ed174cbda67
[INFO] running `Command { std: "docker" "start" "-a" "e3dfa4b506476825ed25f4883e12cc948679e6ccf07c9a96f6950ed174cbda67", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling flipflop v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "e3dfa4b506476825ed25f4883e12cc948679e6ccf07c9a96f6950ed174cbda67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3dfa4b506476825ed25f4883e12cc948679e6ccf07c9a96f6950ed174cbda67", kill_on_drop: false }`
[INFO] [stdout] e3dfa4b506476825ed25f4883e12cc948679e6ccf07c9a96f6950ed174cbda67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6001e0a0158b068e51b8204a8808f9e32656afd75c00a3c4d5a7bd2eeeb370e9
[INFO] running `Command { std: "docker" "start" "-a" "6001e0a0158b068e51b8204a8808f9e32656afd75c00a3c4d5a7bd2eeeb370e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling flipflop v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "6001e0a0158b068e51b8204a8808f9e32656afd75c00a3c4d5a7bd2eeeb370e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6001e0a0158b068e51b8204a8808f9e32656afd75c00a3c4d5a7bd2eeeb370e9", kill_on_drop: false }`
[INFO] [stdout] 6001e0a0158b068e51b8204a8808f9e32656afd75c00a3c4d5a7bd2eeeb370e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c34d64172c934bd09eef5cd3f9fa5158a3d2f15ce57ed9a0ea15068cb5adc9bd
[INFO] running `Command { std: "docker" "start" "-a" "c34d64172c934bd09eef5cd3f9fa5158a3d2f15ce57ed9a0ea15068cb5adc9bd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flipflop-d96dcff5b0e8fa5d)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test error::tests::failed_empty_bwd_nonempty ... ok
[INFO] [stdout] test error::tests::failed_empty_fwd_empty ... ok
[INFO] [stdout] test error::tests::failed_insert_bwd ... ok
[INFO] [stdout] test error::tests::failed_nonempty_bwd_empty ... ok
[INFO] [stdout] test error::tests::failed_nonempty_fwd_empty ... ok
[INFO] [stdout] test error::tests::failed_nonempty_fwd_nonempty ... ok
[INFO] [stdout] test suite::tests::inconsistent_empty ... ok
[INFO] [stdout] test suite::tests::consistent_weird_iterator ... ok
[INFO] [stdout] test suite::tests::simple_weird_iterator ... ok
[INFO] [stdout] test error::tests::failed_empty_fwd_nonempty ... ok
[INFO] [stdout] test error::tests::failed_empty ... ok
[INFO] [stdout] test error::tests::failed_insert_fwd ... ok
[INFO] [stdout] test error::tests::failed_nonempty_bwd_nonempty ... ok
[INFO] [stdout] test error::tests::failed_empty_bwd_empty ... ok
[INFO] [stderr]    Doc-tests flipflop
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 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 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.65s; merged doctests compilation took 0.64s
[INFO] running `Command { std: "docker" "inspect" "c34d64172c934bd09eef5cd3f9fa5158a3d2f15ce57ed9a0ea15068cb5adc9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c34d64172c934bd09eef5cd3f9fa5158a3d2f15ce57ed9a0ea15068cb5adc9bd", kill_on_drop: false }`
[INFO] [stdout] c34d64172c934bd09eef5cd3f9fa5158a3d2f15ce57ed9a0ea15068cb5adc9bd