[INFO] fetching crate string-case 0.1.0...
[INFO] testing string-case-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate string-case 0.1.0 into /workspace/builds/worker-116/source
[INFO] validating manifest of crates.io crate string-case 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string-case 0.1.0
[INFO] finished tweaking crates.io crate string-case 0.1.0
[INFO] tweaked toml for crates.io crate string-case 0.1.0 written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fff92cf6db0de250fab05d147f4a5cd9481aabbc888f9c119a761d124340e16
[INFO] running `Command { std: "docker" "start" "-a" "7fff92cf6db0de250fab05d147f4a5cd9481aabbc888f9c119a761d124340e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fff92cf6db0de250fab05d147f4a5cd9481aabbc888f9c119a761d124340e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fff92cf6db0de250fab05d147f4a5cd9481aabbc888f9c119a761d124340e16", kill_on_drop: false }`
[INFO] [stdout] 7fff92cf6db0de250fab05d147f4a5cd9481aabbc888f9c119a761d124340e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a44cadd826b6446d85a0f7f06ba05724c635360b5901ed3e4af6693722d37aec
[INFO] running `Command { std: "docker" "start" "-a" "a44cadd826b6446d85a0f7f06ba05724c635360b5901ed3e4af6693722d37aec", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling string-case v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `std_unicode`
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate std_unicode;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ToUppercase` in this scope
[INFO] [stdout]   --> src/lib.rs:28:58
[INFO] [stdout]    |
[INFO] [stdout] 28 | ...                   Either<Once<char>, ToUppercase>,
[INFO] [stdout]    |                                          ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::char::ToUppercase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ToUppercase` in this scope
[INFO] [stdout]   --> src/lib.rs:29:86
[INFO] [stdout]    |
[INFO] [stdout] 29 | ...                   fn((Option<bool>, char)) -> Either<Once<char>, ToUppercase>>,
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::char::ToUppercase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ToLowercase` in this scope
[INFO] [stdout]   --> src/lib.rs:31:46
[INFO] [stdout]    |
[INFO] [stdout] 31 | ...                   Either<ToLowercase, ToUppercase>,
[INFO] [stdout]    |                              ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::char::ToLowercase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ToUppercase` in this scope
[INFO] [stdout]   --> src/lib.rs:31:59
[INFO] [stdout]    |
[INFO] [stdout] 31 | ...                   Either<ToLowercase, ToUppercase>,
[INFO] [stdout]    |                                           ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::char::ToUppercase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ToLowercase` in this scope
[INFO] [stdout]   --> src/lib.rs:32:58
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   fn(char) -> Either<ToLowercase, ToUppercase>>>);
[INFO] [stdout]    |                                          ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::char::ToLowercase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ToUppercase` in this scope
[INFO] [stdout]   --> src/lib.rs:32:71
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   fn(char) -> Either<ToLowercase, ToUppercase>>>);
[INFO] [stdout]    |                                                       ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 12 | use core::char::ToUppercase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lib.rs:39:102
[INFO] [stdout]    |
[INFO] [stdout] 39 | ...                   .filter({ fn f(&(_, x): &(Option<bool>, char)) -> bool { '_' != x }; f as _ })
[INFO] [stdout]    |                                                                                          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `string-case` due to 8 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a44cadd826b6446d85a0f7f06ba05724c635360b5901ed3e4af6693722d37aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a44cadd826b6446d85a0f7f06ba05724c635360b5901ed3e4af6693722d37aec", kill_on_drop: false }`
[INFO] [stdout] a44cadd826b6446d85a0f7f06ba05724c635360b5901ed3e4af6693722d37aec