[INFO] fetching crate commander-rust 1.2.1...
[INFO] checking commander-rust-1.2.1 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate commander-rust 1.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate commander-rust 1.2.1 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate commander-rust 1.2.1
[INFO] finished tweaking crates.io crate commander-rust 1.2.1
[INFO] tweaked toml for crates.io crate commander-rust 1.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded commander-macros v1.2.0
[INFO] [stderr]   Downloaded commander-core v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce221ca2d0c495ab91ac529c7e5ea0cfdd2487f3179cb3b9fd1c960d86ac95d2
[INFO] running `Command { std: "docker" "start" "-a" "ce221ca2d0c495ab91ac529c7e5ea0cfdd2487f3179cb3b9fd1c960d86ac95d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce221ca2d0c495ab91ac529c7e5ea0cfdd2487f3179cb3b9fd1c960d86ac95d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce221ca2d0c495ab91ac529c7e5ea0cfdd2487f3179cb3b9fd1c960d86ac95d2", kill_on_drop: false }`
[INFO] [stdout] ce221ca2d0c495ab91ac529c7e5ea0cfdd2487f3179cb3b9fd1c960d86ac95d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 622483b622c5a6f0da7e0841584f3f7a0c11d430ca2ed987c0b319448d37f9f4
[INFO] running `Command { std: "docker" "start" "-a" "622483b622c5a6f0da7e0841584f3f7a0c11d430ca2ed987c0b319448d37f9f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking commander-core v1.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling commander-macros v1.2.0
[INFO] [stderr]     Checking commander-rust v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `borrow_mut` found for mutable reference `&mut Option<for<'a> fn(&'a Vec<commander_rust::Raw>, Cli)>` in the current scope
[INFO] [stdout]   --> examples/cli.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | #[direct(<a> <b> [c] [d])]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]    = note: this error originates in the attribute macro `direct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: trait `BorrowMut` which provides `borrow_mut` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout] 3  + use std::borrow::BorrowMut;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `borrow` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 41 | borrow
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `commander-rust` (example "cli") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "622483b622c5a6f0da7e0841584f3f7a0c11d430ca2ed987c0b319448d37f9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "622483b622c5a6f0da7e0841584f3f7a0c11d430ca2ed987c0b319448d37f9f4", kill_on_drop: false }`
[INFO] [stdout] 622483b622c5a6f0da7e0841584f3f7a0c11d430ca2ed987c0b319448d37f9f4