[INFO] fetching crate mayber 0.1.0...
[INFO] testing mayber-0.1.0 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate mayber 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mayber 0.1.0
[INFO] finished tweaking crates.io crate mayber 0.1.0
[INFO] tweaked toml for crates.io crate mayber 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mayber 0.1.0 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mayber 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d78246dcabb11f2b5556b1fbc9bc2e3339ba269567c6cd1693caf89f6ab2668b
[INFO] running `Command { std: "docker" "start" "-a" "d78246dcabb11f2b5556b1fbc9bc2e3339ba269567c6cd1693caf89f6ab2668b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d78246dcabb11f2b5556b1fbc9bc2e3339ba269567c6cd1693caf89f6ab2668b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78246dcabb11f2b5556b1fbc9bc2e3339ba269567c6cd1693caf89f6ab2668b", kill_on_drop: false }`
[INFO] [stdout] d78246dcabb11f2b5556b1fbc9bc2e3339ba269567c6cd1693caf89f6ab2668b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7313eecab8d3f1d6282fff08655cd0a7356fb069612f4bd9ae41c4e7a619786e
[INFO] running `Command { std: "docker" "start" "-a" "7313eecab8d3f1d6282fff08655cd0a7356fb069612f4bd9ae41c4e7a619786e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mayber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "7313eecab8d3f1d6282fff08655cd0a7356fb069612f4bd9ae41c4e7a619786e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7313eecab8d3f1d6282fff08655cd0a7356fb069612f4bd9ae41c4e7a619786e", kill_on_drop: false }`
[INFO] [stdout] 7313eecab8d3f1d6282fff08655cd0a7356fb069612f4bd9ae41c4e7a619786e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7399c256e4b11b50cd76b9d11179b1c4a239ab468ddf9df0f4f7f4f6efb93291
[INFO] running `Command { std: "docker" "start" "-a" "7399c256e4b11b50cd76b9d11179b1c4a239ab468ddf9df0f4f7f4f6efb93291", kill_on_drop: false }`
[INFO] [stderr]    Compiling mayber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "7399c256e4b11b50cd76b9d11179b1c4a239ab468ddf9df0f4f7f4f6efb93291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7399c256e4b11b50cd76b9d11179b1c4a239ab468ddf9df0f4f7f4f6efb93291", kill_on_drop: false }`
[INFO] [stdout] 7399c256e4b11b50cd76b9d11179b1c4a239ab468ddf9df0f4f7f4f6efb93291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50c642fdfa4c794788e6c798615cb0ac234ab2f00dc3bdd0f416fed9a7674c75
[INFO] running `Command { std: "docker" "start" "-a" "50c642fdfa4c794788e6c798615cb0ac234ab2f00dc3bdd0f416fed9a7674c75", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mayber-eecd7f06843547ae)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mayber
[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 29 tests
[INFO] [stdout] test src/lib.rs - Maybe<Option<R>,Option<T>>::is_some (line 809) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::map_into_owned (line 684) ... FAILED
[INFO] [stdout] test src/lib.rs - Maybe<Option<R>,Option<T>>::as_option_ref (line 830) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::expect_ref (line 582) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::as_maybe_mut (line 658) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::as_maybe_ref (line 635) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::map (line 361) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::expect_owned (line 610) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::inspect (line 437) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<Option<R>,Option<T>>::is_none (line 788) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::into_owned (line 731) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::map_ref (line 387) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::map_into_ref (line 705) ... ok
[INFO] [stdout] test src/lib.rs - Maybe (line 73) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<Option<R>,Option<T>>::as_option_mut (line 852) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::expect_owned (line 617) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::try_unwrap_owned (line 555) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::to_owned (line 760) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::try_unwrap_ref (line 530) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::expect_ref (line 589) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::uninit_owned (line 919) ... ok
[INFO] [stdout] test src/lib.rs - MaybeMut (line 49) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::unwrap_ref (line 475) ... ok
[INFO] [stdout] test src/lib.rs - MaybeRef (line 28) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::map_owned (line 412) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::unwrap_ref (line 482) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::unwrap_owned (line 511) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::unwrap_owned (line 504) ... ok
[INFO] [stdout] test src/lib.rs - Maybe<R,T>::uninit_ref (line 905) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Maybe<R,T>::map_into_owned (line 684) stdout ----
[INFO] [stdout] error[E0599]: no method named `map_to_owned` found for enum `Maybe<R, T>` in the current scope
[INFO] [stdout]    --> src/lib.rs:690:23
[INFO] [stdout]     |
[INFO] [stdout] 690 | let owned: String = x.map_to_owned(|s| s.to_string());
[INFO] [stdout]     |                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `map_into_owned` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 690 | let owned: String = x.map_into_owned(|s| s.to_string());
[INFO] [stdout]     |                           ++
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:690:37
[INFO] [stdout]     |
[INFO] [stdout] 690 | let owned: String = x.map_to_owned(|s| s.to_string());
[INFO] [stdout]     |                                     ^  - type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 690 | let owned: String = x.map_to_owned(|s: /* Type */| s.to_string());
[INFO] [stdout]     |                                      ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Maybe<R,T>::map_into_owned (line 684)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 28 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "50c642fdfa4c794788e6c798615cb0ac234ab2f00dc3bdd0f416fed9a7674c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50c642fdfa4c794788e6c798615cb0ac234ab2f00dc3bdd0f416fed9a7674c75", kill_on_drop: false }`
[INFO] [stdout] 50c642fdfa4c794788e6c798615cb0ac234ab2f00dc3bdd0f416fed9a7674c75
