[INFO] fetching crate touch-als 0.3.1...
[INFO] checking touch-als-0.3.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate touch-als 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate touch-als 0.3.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate touch-als 0.3.1
[INFO] finished tweaking crates.io crate touch-als 0.3.1
[INFO] tweaked toml for crates.io crate touch-als 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate touch-als 0.3.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dia-args v0.51.6
[INFO] [stderr]   Downloaded udsx v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61e872c0d3d77e833a0a45d015a96b60ebd12e2d6018c6d67e70f08c6050d995
[INFO] running `Command { std: "docker" "start" "-a" "61e872c0d3d77e833a0a45d015a96b60ebd12e2d6018c6d67e70f08c6050d995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61e872c0d3d77e833a0a45d015a96b60ebd12e2d6018c6d67e70f08c6050d995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61e872c0d3d77e833a0a45d015a96b60ebd12e2d6018c6d67e70f08c6050d995", kill_on_drop: false }`
[INFO] [stdout] 61e872c0d3d77e833a0a45d015a96b60ebd12e2d6018c6d67e70f08c6050d995
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a682030e5c1a118b10ec9e4f900a733b4bf8cc621f92a7ee8624073413a4387
[INFO] running `Command { std: "docker" "start" "-a" "2a682030e5c1a118b10ec9e4f900a733b4bf8cc621f92a7ee8624073413a4387", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking dia-args v0.51.6
[INFO] [stderr]     Checking udsx v0.8.1
[INFO] [stderr]     Checking touch-als v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:208:47
[INFO] [stdout]     |
[INFO] [stdout] 208 |             sub_args.into_iter().for_each(|s| drop(cmd.arg(s)));
[INFO] [stdout]     |                                               ^^^^^----------^
[INFO] [stdout]     |                                                    |
[INFO] [stdout]     |                                                    argument has type `&mut Command`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/main.rs:208:47
[INFO] [stdout]     |
[INFO] [stdout] 208 |             sub_args.into_iter().for_each(|s| drop(cmd.arg(s)));
[INFO] [stdout]     |                                               ^^^^^----------^
[INFO] [stdout]     |                                                    |
[INFO] [stdout]     |                                                    argument has type `&mut Command`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "2a682030e5c1a118b10ec9e4f900a733b4bf8cc621f92a7ee8624073413a4387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a682030e5c1a118b10ec9e4f900a733b4bf8cc621f92a7ee8624073413a4387", kill_on_drop: false }`
[INFO] [stdout] 2a682030e5c1a118b10ec9e4f900a733b4bf8cc621f92a7ee8624073413a4387
[INFO] checking touch-als-0.3.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate touch-als 0.3.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate touch-als 0.3.1 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate touch-als 0.3.1
[INFO] finished tweaking crates.io crate touch-als 0.3.1
[INFO] tweaked toml for crates.io crate touch-als 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate touch-als 0.3.1 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f18bce6f344798b478d4aa04f9640bc5fbd9cea02599166c4533309528a2df38
[INFO] running `Command { std: "docker" "start" "-a" "f18bce6f344798b478d4aa04f9640bc5fbd9cea02599166c4533309528a2df38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f18bce6f344798b478d4aa04f9640bc5fbd9cea02599166c4533309528a2df38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f18bce6f344798b478d4aa04f9640bc5fbd9cea02599166c4533309528a2df38", kill_on_drop: false }`
[INFO] [stdout] f18bce6f344798b478d4aa04f9640bc5fbd9cea02599166c4533309528a2df38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e71902fd434f288228aff9030293c84e61af6166052f319d533437be7b25894
[INFO] running `Command { std: "docker" "start" "-a" "6e71902fd434f288228aff9030293c84e61af6166052f319d533437be7b25894", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking dia-args v0.51.6
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/dia-args-0.51.6/src/args.rs:770:24
[INFO] [stdout]     |
[INFO] [stdout] 770 |                   '=' => match index {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 771 | |                     0 => return Err(Error::new(ErrorKind::InvalidData, format!("Invalid long option: {:?}", &s))),
[INFO] [stdout] 772 | |                     _ => return Ok(ArgKind::LongOptionWithValue),
[INFO] [stdout] 773 | |                 },
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dia-args` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6e71902fd434f288228aff9030293c84e61af6166052f319d533437be7b25894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e71902fd434f288228aff9030293c84e61af6166052f319d533437be7b25894", kill_on_drop: false }`
[INFO] [stdout] 6e71902fd434f288228aff9030293c84e61af6166052f319d533437be7b25894