[INFO] fetching crate cargo-brrrr 0.1.0...
[INFO] checking cargo-brrrr-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate cargo-brrrr 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate cargo-brrrr 0.1.0 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 cargo-brrrr 0.1.0
[INFO] finished tweaking crates.io crate cargo-brrrr 0.1.0
[INFO] tweaked toml for crates.io crate cargo-brrrr 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-brrrr 0.1.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-1-tc1/source/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded ctrlc v3.1.5
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded libc v0.2.73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 621517554ddc8f9440fd715b949f4a554f6e579bb5ac5eed0a0831136bbaf0e9
[INFO] running `Command { std: "docker" "start" "-a" "621517554ddc8f9440fd715b949f4a554f6e579bb5ac5eed0a0831136bbaf0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "621517554ddc8f9440fd715b949f4a554f6e579bb5ac5eed0a0831136bbaf0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "621517554ddc8f9440fd715b949f4a554f6e579bb5ac5eed0a0831136bbaf0e9", kill_on_drop: false }`
[INFO] [stdout] 621517554ddc8f9440fd715b949f4a554f6e579bb5ac5eed0a0831136bbaf0e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 88a030b4a5cb8838492214c9ad40171f54af8ad62dacdc01c0457b2f6612900e
[INFO] running `Command { std: "docker" "start" "-a" "88a030b4a5cb8838492214c9ad40171f54af8ad62dacdc01c0457b2f6612900e", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking ctrlc v3.1.5
[INFO] [stderr]     Checking cargo-brrrr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "88a030b4a5cb8838492214c9ad40171f54af8ad62dacdc01c0457b2f6612900e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a030b4a5cb8838492214c9ad40171f54af8ad62dacdc01c0457b2f6612900e", kill_on_drop: false }`
[INFO] [stdout] 88a030b4a5cb8838492214c9ad40171f54af8ad62dacdc01c0457b2f6612900e
[INFO] checking cargo-brrrr-0.1.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate cargo-brrrr 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate cargo-brrrr 0.1.0 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 cargo-brrrr 0.1.0
[INFO] finished tweaking crates.io crate cargo-brrrr 0.1.0
[INFO] tweaked toml for crates.io crate cargo-brrrr 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-brrrr 0.1.0 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-1-tc2/source/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7e8c027b006636ff2aa7050b72ab53ff17ac43ba00101f6708df3c6424300abb
[INFO] running `Command { std: "docker" "start" "-a" "7e8c027b006636ff2aa7050b72ab53ff17ac43ba00101f6708df3c6424300abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e8c027b006636ff2aa7050b72ab53ff17ac43ba00101f6708df3c6424300abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e8c027b006636ff2aa7050b72ab53ff17ac43ba00101f6708df3c6424300abb", kill_on_drop: false }`
[INFO] [stdout] 7e8c027b006636ff2aa7050b72ab53ff17ac43ba00101f6708df3c6424300abb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c3721d74d6e09828852468c52e8624d6eadc22c8b752648779582d850b9b5085
[INFO] running `Command { std: "docker" "start" "-a" "c3721d74d6e09828852468c52e8624d6eadc22c8b752648779582d850b9b5085", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `cargo-br`
[INFO] [stderr]   * `bin` target `cargo-brr`
[INFO] [stderr]   * `bin` target `cargo-brrr`
[INFO] [stderr]   * `bin` target `cargo-brrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrr`
[INFO] [stderr]   * `bin` target `cargo-brrrrrrrrr`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking ctrlc v3.1.5
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ctrlc-3.1.5/src/lib.rs:109:16
[INFO] [stdout]     |
[INFO] [stdout] 109 |         .spawn(move || loop {
[INFO] [stdout]     |          ----- ^^^^^^^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Builder::spawn`
[INFO] [stdout]    --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:381:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]     |
[INFO] [stdout] 109 ~         .spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 110 |             unsafe {
[INFO] [stdout]   ...
[INFO] [stdout] 113 |             user_handler();
[INFO] [stdout] 114 ~         } })
[INFO] [stdout]     |
[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 E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ctrlc` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c3721d74d6e09828852468c52e8624d6eadc22c8b752648779582d850b9b5085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3721d74d6e09828852468c52e8624d6eadc22c8b752648779582d850b9b5085", kill_on_drop: false }`
[INFO] [stdout] c3721d74d6e09828852468c52e8624d6eadc22c8b752648779582d850b9b5085