[INFO] cloning repository https://github.com/unbound26z/c_f_converter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unbound26z/c_f_converter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funbound26z%2Fc_f_converter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funbound26z%2Fc_f_converter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e771641105681d148d71ccdc226fc92158dfa62
[INFO] checking unbound26z/c_f_converter against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funbound26z%2Fc_f_converter" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/unbound26z/c_f_converter 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 git repo https://github.com/unbound26z/c_f_converter
[INFO] finished tweaking git repo https://github.com/unbound26z/c_f_converter
[INFO] tweaked toml for git repo https://github.com/unbound26z/c_f_converter written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/unbound26z/c_f_converter 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9135db3e61aabc12c011419e518053c3842b9fb0e8155bfb9b56f56a0e096296
[INFO] running `Command { std: "docker" "start" "-a" "9135db3e61aabc12c011419e518053c3842b9fb0e8155bfb9b56f56a0e096296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9135db3e61aabc12c011419e518053c3842b9fb0e8155bfb9b56f56a0e096296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9135db3e61aabc12c011419e518053c3842b9fb0e8155bfb9b56f56a0e096296", kill_on_drop: false }`
[INFO] [stdout] 9135db3e61aabc12c011419e518053c3842b9fb0e8155bfb9b56f56a0e096296
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c8b033952c8b52c5caaa92fbf79a0f0297965751359eb9b848a311d467babb0a
[INFO] running `Command { std: "docker" "start" "-a" "c8b033952c8b52c5caaa92fbf79a0f0297965751359eb9b848a311d467babb0a", kill_on_drop: false }`
[INFO] [stderr]     Checking c_f_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "c8b033952c8b52c5caaa92fbf79a0f0297965751359eb9b848a311d467babb0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8b033952c8b52c5caaa92fbf79a0f0297965751359eb9b848a311d467babb0a", kill_on_drop: false }`
[INFO] [stdout] c8b033952c8b52c5caaa92fbf79a0f0297965751359eb9b848a311d467babb0a
[INFO] checking unbound26z/c_f_converter against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funbound26z%2Fc_f_converter" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/unbound26z/c_f_converter 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 git repo https://github.com/unbound26z/c_f_converter
[INFO] finished tweaking git repo https://github.com/unbound26z/c_f_converter
[INFO] tweaked toml for git repo https://github.com/unbound26z/c_f_converter written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/unbound26z/c_f_converter 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 52e6b48ad50227de222dc480ce540ed1883a0a444b55bcc1d7e41fa00a76e0bd
[INFO] running `Command { std: "docker" "start" "-a" "52e6b48ad50227de222dc480ce540ed1883a0a444b55bcc1d7e41fa00a76e0bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52e6b48ad50227de222dc480ce540ed1883a0a444b55bcc1d7e41fa00a76e0bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52e6b48ad50227de222dc480ce540ed1883a0a444b55bcc1d7e41fa00a76e0bd", kill_on_drop: false }`
[INFO] [stdout] 52e6b48ad50227de222dc480ce540ed1883a0a444b55bcc1d7e41fa00a76e0bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5d0083b8e55678e39f13bb932c7758f4ffaff408724cade5d57de5f72e775d71
[INFO] running `Command { std: "docker" "start" "-a" "5d0083b8e55678e39f13bb932c7758f4ffaff408724cade5d57de5f72e775d71", kill_on_drop: false }`
[INFO] [stderr]     Checking c_f_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]   --> src/main.rs:48:29
[INFO] [stdout]    |
[INFO] [stdout] 48 |                   Ok(char) => match char {
[INFO] [stdout]    |  _____________________________^
[INFO] [stdout] 49 | |                     'y' => continue 'main_loop,
[INFO] [stdout] 50 | |                     'n' => {
[INFO] [stdout] 51 | |                         println!("Bye!");
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |                     }
[INFO] [stdout] 58 | |                 },
[INFO] [stdout]    | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]   --> src/main.rs:48:29
[INFO] [stdout]    |
[INFO] [stdout] 48 |                   Ok(char) => match char {
[INFO] [stdout]    |  _____________________________^
[INFO] [stdout] 49 | |                     'y' => continue 'main_loop,
[INFO] [stdout] 50 | |                     'n' => {
[INFO] [stdout] 51 | |                         println!("Bye!");
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |                     }
[INFO] [stdout] 58 | |                 },
[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] [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 `c_f_converter` (bin "c_f_converter") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `c_f_converter` (bin "c_f_converter" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5d0083b8e55678e39f13bb932c7758f4ffaff408724cade5d57de5f72e775d71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0083b8e55678e39f13bb932c7758f4ffaff408724cade5d57de5f72e775d71", kill_on_drop: false }`
[INFO] [stdout] 5d0083b8e55678e39f13bb932c7758f4ffaff408724cade5d57de5f72e775d71