[INFO] fetching crate garbage 0.4.3...
[INFO] testing garbage-0.4.3 against 1.100.0-beta.1 for beta-1.100-3
[INFO] extracting crate garbage 0.4.3 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate garbage 0.4.3
[INFO] finished tweaking crates.io crate garbage 0.4.3
[INFO] tweaked toml for crates.io crate garbage 0.4.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate garbage 0.4.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate garbage 0.4.3 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" "+1.100.0-beta.1" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86
[INFO] running `Command { std: "docker" "start" "451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle-query v1.0.3
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]    Compiling anstyle-parse v0.2.4
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling anstream v0.6.14
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling garbage v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling unicode-width v0.1.12
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling encode_unicode v1.0.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling prettytable-rs v0.10.0
[INFO] [stderr]    Compiling xdg v2.5.2
[INFO] [stderr]    Compiling garbage-fs v0.1.0
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling clap_complete v4.5.2
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling chrono-humanize v0.2.3
[INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()`
[INFO] [stdout]   --> src/ops/empty.rs:81:16
[INFO] [stdout]    |
[INFO] [stdout] 81 |     .collect::<Result<_>>()?;
[INFO] [stdout]    |      -------   ^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator<Item=()>`
[INFO] [stdout]    |      |
[INFO] [stdout]    |      required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromIterator<()>` is not implemented for `!`
[INFO] [stdout] help: the trait `FromIterator<Result<T, E>>` is conditionally implemented for `Result<V, E>`
[INFO] [stdout]   --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/result.rs:2114:14
[INFO] [stdout]    |
[INFO] [stdout]    = note: unsatisfied requirement introduced here: `!: FromIterator<()>`
[INFO] [stdout]    = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]    = help: you might have intended to use the type `()` here instead
[INFO] [stdout]    = note: required for `Result<!, anyhow::Error>` to implement `FromIterator<Result<(), anyhow::Error>>`
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]   --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/iter/traits/iterator.rs:2087:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `garbage` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86", kill_on_drop: false }`
[INFO] [stdout] 451a7f94a0da94607a457c451e2f58ebbd48c12b85bc366f04e2b3afc9040b86
