[INFO] cloning repository https://github.com/Kartikeya-sudo/LS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kartikeya-sudo/LS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKartikeya-sudo%2FLS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKartikeya-sudo%2FLS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 275aadb487b6ac4414b24455e35dc16c045c7a78
[INFO] checking Kartikeya-sudo/LS against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKartikeya-sudo%2FLS" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kartikeya-sudo/LS 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/Kartikeya-sudo/LS
[INFO] finished tweaking git repo https://github.com/Kartikeya-sudo/LS
[INFO] tweaked toml for git repo https://github.com/Kartikeya-sudo/LS written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Kartikeya-sudo/LS 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-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] cfe7f312e6184f448e9d05e1e75a00d423bc86d20d1033ce7498ca92c3e8943a
[INFO] running `Command { std: "docker" "start" "-a" "cfe7f312e6184f448e9d05e1e75a00d423bc86d20d1033ce7498ca92c3e8943a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfe7f312e6184f448e9d05e1e75a00d423bc86d20d1033ce7498ca92c3e8943a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe7f312e6184f448e9d05e1e75a00d423bc86d20d1033ce7498ca92c3e8943a", kill_on_drop: false }`
[INFO] [stdout] cfe7f312e6184f448e9d05e1e75a00d423bc86d20d1033ce7498ca92c3e8943a
[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] 3d8e30c601c464e1b4c27d97b9d1b4965c5b62f2d9eec70c03aa42fa94c5ecd4
[INFO] running `Command { std: "docker" "start" "-a" "3d8e30c601c464e1b4c27d97b9d1b4965c5b62f2d9eec70c03aa42fa94c5ecd4", kill_on_drop: false }`
[INFO] [stderr]     Checking ls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "3d8e30c601c464e1b4c27d97b9d1b4965c5b62f2d9eec70c03aa42fa94c5ecd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d8e30c601c464e1b4c27d97b9d1b4965c5b62f2d9eec70c03aa42fa94c5ecd4", kill_on_drop: false }`
[INFO] [stdout] 3d8e30c601c464e1b4c27d97b9d1b4965c5b62f2d9eec70c03aa42fa94c5ecd4
[INFO] checking Kartikeya-sudo/LS against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKartikeya-sudo%2FLS" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kartikeya-sudo/LS 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/Kartikeya-sudo/LS
[INFO] finished tweaking git repo https://github.com/Kartikeya-sudo/LS
[INFO] tweaked toml for git repo https://github.com/Kartikeya-sudo/LS written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Kartikeya-sudo/LS 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-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] a2f653dd612dec6f16c5846ee999cc200b6e5403a5d13282faff39dc3f0a630f
[INFO] running `Command { std: "docker" "start" "-a" "a2f653dd612dec6f16c5846ee999cc200b6e5403a5d13282faff39dc3f0a630f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2f653dd612dec6f16c5846ee999cc200b6e5403a5d13282faff39dc3f0a630f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f653dd612dec6f16c5846ee999cc200b6e5403a5d13282faff39dc3f0a630f", kill_on_drop: false }`
[INFO] [stdout] a2f653dd612dec6f16c5846ee999cc200b6e5403a5d13282faff39dc3f0a630f
[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] f5cf2fe22bc70f4ba0c2c8c1fe44d4a05e96bacfaa76ba7c531afcf92486f256
[INFO] running `Command { std: "docker" "start" "-a" "f5cf2fe22bc70f4ba0c2c8c1fe44d4a05e96bacfaa76ba7c531afcf92486f256", kill_on_drop: false }`
[INFO] [stderr]     Checking ls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | /         match print_dir(&String::from("."), true) {
[INFO] [stdout] 58 | |             Ok(_) => return,
[INFO] [stdout] 59 | |             Err(e) => {
[INFO] [stdout] 60 | |                 println!("There was an error: {}", e);
[INFO] [stdout] 61 | |                 return;
[INFO] [stdout] 62 | |             }
[INFO] [stdout] 63 | |         };
[INFO] [stdout]    | |_________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | /         match print_dir(&String::from("."), true) {
[INFO] [stdout] 58 | |             Ok(_) => return,
[INFO] [stdout] 59 | |             Err(e) => {
[INFO] [stdout] 60 | |                 println!("There was an error: {}", e);
[INFO] [stdout] 61 | |                 return;
[INFO] [stdout] 62 | |             }
[INFO] [stdout] 63 | |         };
[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: 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 `ls` (bin "ls") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ls` (bin "ls" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f5cf2fe22bc70f4ba0c2c8c1fe44d4a05e96bacfaa76ba7c531afcf92486f256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5cf2fe22bc70f4ba0c2c8c1fe44d4a05e96bacfaa76ba7c531afcf92486f256", kill_on_drop: false }`
[INFO] [stdout] f5cf2fe22bc70f4ba0c2c8c1fe44d4a05e96bacfaa76ba7c531afcf92486f256