[INFO] fetching crate ripasso-cursive 0.8.0...
[INFO] checking ripasso-cursive-0.8.0 against try#1bdcb63291ccffc030f8223f6f978568dd240e3e for 155501-infallible-never-with-reservation
[INFO] extracting crate ripasso-cursive 0.8.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ripasso-cursive 0.8.0
[INFO] finished tweaking crates.io crate ripasso-cursive 0.8.0
[INFO] tweaked toml for crates.io crate ripasso-cursive 0.8.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ripasso-cursive 0.8.0 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 ripasso-cursive 0.8.0 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" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f2830fc3d4ce1d8d32d7f13ff57ff1000de9510f5ec62190362597e645b9a3e7
[INFO] running `Command { std: "docker" "start" "-a" "f2830fc3d4ce1d8d32d7f13ff57ff1000de9510f5ec62190362597e645b9a3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2830fc3d4ce1d8d32d7f13ff57ff1000de9510f5ec62190362597e645b9a3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2830fc3d4ce1d8d32d7f13ff57ff1000de9510f5ec62190362597e645b9a3e7", kill_on_drop: false }`
[INFO] [stdout] f2830fc3d4ce1d8d32d7f13ff57ff1000de9510f5ec62190362597e645b9a3e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a7c11a2f154416410fb6686041b1d995c5bea17890d99e238f221e111ab8827c
[INFO] running `Command { std: "docker" "start" "-a" "a7c11a2f154416410fb6686041b1d995c5bea17890d99e238f221e111ab8827c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
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[INFO] [stderr]    Compiling roff v0.1.0
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[INFO] [stderr]     Checking enum-map v2.7.3
[INFO] [stderr]     Checking wl-clipboard-rs v0.8.1
[INFO] [stderr]    Compiling man v0.3.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking conv v0.3.3
[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-0.8.1/src/copy.rs:591:56
[INFO] [stdout]     |
[INFO] [stdout] 591 |         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] [stderr]     Checking tower v0.5.2
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a7c11a2f154416410fb6686041b1d995c5bea17890d99e238f221e111ab8827c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c11a2f154416410fb6686041b1d995c5bea17890d99e238f221e111ab8827c", kill_on_drop: false }`
[INFO] [stdout] a7c11a2f154416410fb6686041b1d995c5bea17890d99e238f221e111ab8827c