[INFO] cloning repository https://github.com/gpdoud/rust-error-handling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gpdoud/rust-error-handling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpdoud%2Frust-error-handling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpdoud%2Frust-error-handling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 848fc0eedb79802c433a7b8c816b87f58db43925
[INFO] checking gpdoud/rust-error-handling against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpdoud%2Frust-error-handling" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gpdoud/rust-error-handling 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/gpdoud/rust-error-handling
[INFO] finished tweaking git repo https://github.com/gpdoud/rust-error-handling
[INFO] tweaked toml for git repo https://github.com/gpdoud/rust-error-handling written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gpdoud/rust-error-handling 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 135e2d08b5d68b07bfe0ebedb7c418cd48ec1aac08ef4de0c90d4ce916ec840c
[INFO] running `Command { std: "docker" "start" "-a" "135e2d08b5d68b07bfe0ebedb7c418cd48ec1aac08ef4de0c90d4ce916ec840c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "135e2d08b5d68b07bfe0ebedb7c418cd48ec1aac08ef4de0c90d4ce916ec840c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135e2d08b5d68b07bfe0ebedb7c418cd48ec1aac08ef4de0c90d4ce916ec840c", kill_on_drop: false }`
[INFO] [stdout] 135e2d08b5d68b07bfe0ebedb7c418cd48ec1aac08ef4de0c90d4ce916ec840c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ceca64708b19e26e480630da64b494d2e85bd8a91aef1e6dc34643bfd80c5257
[INFO] running `Command { std: "docker" "start" "-a" "ceca64708b19e26e480630da64b494d2e85bd8a91aef1e6dc34643bfd80c5257", kill_on_drop: false }`
[INFO] [stderr]     Checking error_handling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "ceca64708b19e26e480630da64b494d2e85bd8a91aef1e6dc34643bfd80c5257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceca64708b19e26e480630da64b494d2e85bd8a91aef1e6dc34643bfd80c5257", kill_on_drop: false }`
[INFO] [stdout] ceca64708b19e26e480630da64b494d2e85bd8a91aef1e6dc34643bfd80c5257
[INFO] checking gpdoud/rust-error-handling against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpdoud%2Frust-error-handling" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gpdoud/rust-error-handling 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/gpdoud/rust-error-handling
[INFO] finished tweaking git repo https://github.com/gpdoud/rust-error-handling
[INFO] tweaked toml for git repo https://github.com/gpdoud/rust-error-handling written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gpdoud/rust-error-handling 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a76bd2c17fe87fc66e140891e182f7904a2fe531d3a72ead5f58dc537c4fcfb2
[INFO] running `Command { std: "docker" "start" "-a" "a76bd2c17fe87fc66e140891e182f7904a2fe531d3a72ead5f58dc537c4fcfb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a76bd2c17fe87fc66e140891e182f7904a2fe531d3a72ead5f58dc537c4fcfb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76bd2c17fe87fc66e140891e182f7904a2fe531d3a72ead5f58dc537c4fcfb2", kill_on_drop: false }`
[INFO] [stdout] a76bd2c17fe87fc66e140891e182f7904a2fe531d3a72ead5f58dc537c4fcfb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ee85d08de68fbb1774aade1377c12498450e21a0c7347d54ec3315fc0bc0f625
[INFO] running `Command { std: "docker" "start" "-a" "ee85d08de68fbb1774aade1377c12498450e21a0c7347d54ec3315fc0bc0f625", kill_on_drop: false }`
[INFO] [stderr]     Checking error_handling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     match tf {
[INFO] [stdout] 12 | |         0 => return Ok(0),
[INFO] [stdout] 13 | |         1 => return Ok(100),
[INFO] [stdout] 14 | |         2 => return Ok(-100),
[INFO] [stdout] 15 | |         _ => return Err("General error message".to_string())
[INFO] [stdout] 16 | |     };
[INFO] [stdout]    | |_____^ cannot infer type
[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 E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     match tf {
[INFO] [stdout] 12 | |         0 => return Ok(0),
[INFO] [stdout] 13 | |         1 => return Ok(100),
[INFO] [stdout] 14 | |         2 => return Ok(-100),
[INFO] [stdout] 15 | |         _ => return Err("General error message".to_string())
[INFO] [stdout] 16 | |     };
[INFO] [stdout]    | |_____^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `error_handling` (bin "error_handling") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `error_handling` (bin "error_handling" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ee85d08de68fbb1774aade1377c12498450e21a0c7347d54ec3315fc0bc0f625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee85d08de68fbb1774aade1377c12498450e21a0c7347d54ec3315fc0bc0f625", kill_on_drop: false }`
[INFO] [stdout] ee85d08de68fbb1774aade1377c12498450e21a0c7347d54ec3315fc0bc0f625