[INFO] fetching crate once-option 0.1.0...
[INFO] testing once-option-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate once-option 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate once-option 0.1.0
[INFO] finished tweaking crates.io crate once-option 0.1.0
[INFO] tweaked toml for crates.io crate once-option 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate once-option 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] [stderr]     Blocking waiting for file lock on package cache
[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] cf98a56a83072f158cc117b92181da483a77be04024c1a6f621ea7d5ccd947cb
[INFO] running `Command { std: "docker" "start" "-a" "cf98a56a83072f158cc117b92181da483a77be04024c1a6f621ea7d5ccd947cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf98a56a83072f158cc117b92181da483a77be04024c1a6f621ea7d5ccd947cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf98a56a83072f158cc117b92181da483a77be04024c1a6f621ea7d5ccd947cb", kill_on_drop: false }`
[INFO] [stdout] cf98a56a83072f158cc117b92181da483a77be04024c1a6f621ea7d5ccd947cb
[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] ea8f5edad042104efaa07f8843d23e5fe2fe3dbe1db33055c083fd66cbccef81
[INFO] running `Command { std: "docker" "start" "-a" "ea8f5edad042104efaa07f8843d23e5fe2fe3dbe1db33055c083fd66cbccef81", kill_on_drop: false }`
[INFO] [stderr]    Compiling once-option v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "ea8f5edad042104efaa07f8843d23e5fe2fe3dbe1db33055c083fd66cbccef81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea8f5edad042104efaa07f8843d23e5fe2fe3dbe1db33055c083fd66cbccef81", kill_on_drop: false }`
[INFO] [stdout] ea8f5edad042104efaa07f8843d23e5fe2fe3dbe1db33055c083fd66cbccef81
[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] aec8e0f5418caa1d578c02a69f2f9c2f9848267995dc5df8a81d9a69d08bec8f
[INFO] running `Command { std: "docker" "start" "-a" "aec8e0f5418caa1d578c02a69f2f9c2f9848267995dc5df8a81d9a69d08bec8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling once-option v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "aec8e0f5418caa1d578c02a69f2f9c2f9848267995dc5df8a81d9a69d08bec8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec8e0f5418caa1d578c02a69f2f9c2f9848267995dc5df8a81d9a69d08bec8f", kill_on_drop: false }`
[INFO] [stdout] aec8e0f5418caa1d578c02a69f2f9c2f9848267995dc5df8a81d9a69d08bec8f
[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] af8eef484de185cc3296ea47cc388ac391bd6be26f60518df087a3f9a173e5fb
[INFO] running `Command { std: "docker" "start" "-a" "af8eef484de185cc3296ea47cc388ac391bd6be26f60518df087a3f9a173e5fb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/once_option-c07b327e6800f393)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::impl_deref_mut ... ok
[INFO] [stdout] test tests::impl_debug ... ok
[INFO] [stdout] test tests::impl_display_float_formats ... ok
[INFO] [stdout] test tests::impl_ord ... ok
[INFO] [stdout] test tests::impl_partial_eq ... ok
[INFO] [stdout] test tests::impl_partial_ord ... ok
[INFO] [stdout] test tests::impl_deref ... ok
[INFO] [stdout] test tests::impl_display_integer_formats ... ok
[INFO] [stdout] test tests::wrapping_a_thread_join_handle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests once_option
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test src/lib.rs - (line 32) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::expect (line 226) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::expect (line 220) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::replace (line 336) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::is_some (line 178) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::is_none (line 196) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::expect_none (line 246) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::from (line 386) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption (line 150) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::take (line 273) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::NONE (line 167) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::replace (line 328) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::from (line 403) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::expect_none (line 252) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::default (line 363) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::from (line 379) ... ok
[INFO] [stdout] test src/lib.rs - (line 84) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::unwrap (line 301) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::unwrap (line 309) ... ok
[INFO] [stdout] test src/lib.rs - OnceOption<T>::take (line 281) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.91s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "af8eef484de185cc3296ea47cc388ac391bd6be26f60518df087a3f9a173e5fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af8eef484de185cc3296ea47cc388ac391bd6be26f60518df087a3f9a173e5fb", kill_on_drop: false }`
[INFO] [stdout] af8eef484de185cc3296ea47cc388ac391bd6be26f60518df087a3f9a173e5fb