[INFO] fetching crate amp 0.7.1...
[INFO] checking amp-0.7.1 against try#1bdcb63291ccffc030f8223f6f978568dd240e3e for 155501-infallible-never-with-reservation
[INFO] extracting crate amp 0.7.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate amp 0.7.1
[INFO] finished tweaking crates.io crate amp 0.7.1
[INFO] tweaked toml for crates.io crate amp 0.7.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate amp 0.7.1 on toolchain 1bdcb63291ccffc030f8223f6f978568dd240e3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate amp 0.7.1 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" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6501dcb3db9508b66d61f2e1ce87a91fea7baff0eb6e96c462b814d968cf42eb
[INFO] running `Command { std: "docker" "start" "-a" "6501dcb3db9508b66d61f2e1ce87a91fea7baff0eb6e96c462b814d968cf42eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6501dcb3db9508b66d61f2e1ce87a91fea7baff0eb6e96c462b814d968cf42eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6501dcb3db9508b66d61f2e1ce87a91fea7baff0eb6e96c462b814d968cf42eb", kill_on_drop: false }`
[INFO] [stdout] 6501dcb3db9508b66d61f2e1ce87a91fea7baff0eb6e96c462b814d968cf42eb
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74333d8f5430cc6a426197a73408739ee65fa838dd87c8da2fcf99af15d43ef9
[INFO] running `Command { std: "docker" "start" "-a" "74333d8f5430cc6a426197a73408739ee65fa838dd87c8da2fcf99af15d43ef9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
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[INFO] [stderr]    Compiling proc-macro2 v1.0.66
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[INFO] [stderr]     Checking memchr v2.6.3
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[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking onig v6.4.0
[INFO] [stderr]    Compiling amp v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking git2 v0.18.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking plist v1.6.0
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking syntect v5.1.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking x11rb v0.10.1
[INFO] [stderr]     Checking scribe v0.8.4
[INFO] [stderr]     Checking x11-clipboard v0.7.1
[INFO] [stderr]     Checking wl-clipboard-rs v0.7.0
[INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/wl-clipboard-rs-0.7.0/src/copy.rs:434:56
[INFO] [stdout]     |
[INFO] [stdout] 434 |         let result: Result<_, _> = results.into_iter().collect();
[INFO] [stdout]     |                                                        ^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator<Item=()>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromIterator<()>` is not implemented for `!`
[INFO] [stdout] help: the trait `FromIterator<Result<A, E>>` is implemented for `Result<V, E>`
[INFO] [stdout]    --> /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/core/src/result.rs:2109:0
[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<!, copy::Error>` to implement `FromIterator<Result<(), copy::Error>>`
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]    --> /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/core/src/iter/traits/iterator.rs:2079:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wl-clipboard-rs` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "74333d8f5430cc6a426197a73408739ee65fa838dd87c8da2fcf99af15d43ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74333d8f5430cc6a426197a73408739ee65fa838dd87c8da2fcf99af15d43ef9", kill_on_drop: false }`
[INFO] [stdout] 74333d8f5430cc6a426197a73408739ee65fa838dd87c8da2fcf99af15d43ef9
