[INFO] cloning repository https://github.com/Lokasku/rubss
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lokasku/rubss" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokasku%2Frubss", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokasku%2Frubss'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 452a28bf42c79182ad8df61d688c0436801bbd3c
[INFO] checking Lokasku/rubss against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokasku%2Frubss" "/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/Lokasku/rubss 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/Lokasku/rubss
[INFO] finished tweaking git repo https://github.com/Lokasku/rubss
[INFO] tweaked toml for git repo https://github.com/Lokasku/rubss written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Lokasku/rubss 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]      Locking 1 package
[INFO] [stderr]       Adding russs v0.1.0 (/workspace/builds/worker-3-tc1/source)
[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] 24c69e9e0540870a4aab04ab67bb88694ac3613ea1d5e6917ebd59808decd5af
[INFO] running `Command { std: "docker" "start" "-a" "24c69e9e0540870a4aab04ab67bb88694ac3613ea1d5e6917ebd59808decd5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24c69e9e0540870a4aab04ab67bb88694ac3613ea1d5e6917ebd59808decd5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24c69e9e0540870a4aab04ab67bb88694ac3613ea1d5e6917ebd59808decd5af", kill_on_drop: false }`
[INFO] [stdout] 24c69e9e0540870a4aab04ab67bb88694ac3613ea1d5e6917ebd59808decd5af
[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] 71de90a3d03ecfbcfd7356b0567289e946e51ca7e13f2202794709d161c83a61
[INFO] running `Command { std: "docker" "start" "-a" "71de90a3d03ecfbcfd7356b0567289e946e51ca7e13f2202794709d161c83a61", kill_on_drop: false }`
[INFO] [stderr]     Checking russs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "71de90a3d03ecfbcfd7356b0567289e946e51ca7e13f2202794709d161c83a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71de90a3d03ecfbcfd7356b0567289e946e51ca7e13f2202794709d161c83a61", kill_on_drop: false }`
[INFO] [stdout] 71de90a3d03ecfbcfd7356b0567289e946e51ca7e13f2202794709d161c83a61
[INFO] checking Lokasku/rubss against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokasku%2Frubss" "/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/Lokasku/rubss 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/Lokasku/rubss
[INFO] finished tweaking git repo https://github.com/Lokasku/rubss
[INFO] tweaked toml for git repo https://github.com/Lokasku/rubss written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Lokasku/rubss 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] 6579063623b77513119fe4d56063c3f6343e2c98d724930aacd3957b4c47039a
[INFO] running `Command { std: "docker" "start" "-a" "6579063623b77513119fe4d56063c3f6343e2c98d724930aacd3957b4c47039a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6579063623b77513119fe4d56063c3f6343e2c98d724930aacd3957b4c47039a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6579063623b77513119fe4d56063c3f6343e2c98d724930aacd3957b4c47039a", kill_on_drop: false }`
[INFO] [stdout] 6579063623b77513119fe4d56063c3f6343e2c98d724930aacd3957b4c47039a
[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] a26bd09f3e9c2d87d01c89036c7aa4a96fda08062b5033aee65f03acbe6402ad
[INFO] running `Command { std: "docker" "start" "-a" "a26bd09f3e9c2d87d01c89036c7aa4a96fda08062b5033aee65f03acbe6402ad", kill_on_drop: false }`
[INFO] [stderr]     Checking russs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/sudoku.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 | /                 match self.content[i_line][i_num] {
[INFO] [stdout] 84 | |                     None => return Ok(Cell {
[INFO] [stdout] 85 | |                         value: self.content[i_line][i_num],
[INFO] [stdout] 86 | |                         a: i_line as u32,
[INFO] [stdout] ...  |
[INFO] [stdout] 89 | |                     _ => continue
[INFO] [stdout] 90 | |                 };
[INFO] [stdout]    | |_________________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/sudoku.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 | /                 match self.content[i_line][i_num] {
[INFO] [stdout] 84 | |                     None => return Ok(Cell {
[INFO] [stdout] 85 | |                         value: self.content[i_line][i_num],
[INFO] [stdout] 86 | |                         a: i_line as u32,
[INFO] [stdout] ...  |
[INFO] [stdout] 89 | |                     _ => continue
[INFO] [stdout] 90 | |                 };
[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] [stderr] error: could not compile `russs` (bin "russs") due to 2 previous errors
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `russs` (bin "russs" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a26bd09f3e9c2d87d01c89036c7aa4a96fda08062b5033aee65f03acbe6402ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26bd09f3e9c2d87d01c89036c7aa4a96fda08062b5033aee65f03acbe6402ad", kill_on_drop: false }`
[INFO] [stdout] a26bd09f3e9c2d87d01c89036c7aa4a96fda08062b5033aee65f03acbe6402ad