[INFO] cloning repository https://github.com/stillzhl/edit-distance
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stillzhl/edit-distance" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstillzhl%2Fedit-distance", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstillzhl%2Fedit-distance'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b814d004c2751998d7dd486a1988476a38eb459a
[INFO] checking stillzhl/edit-distance against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstillzhl%2Fedit-distance" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stillzhl/edit-distance 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/stillzhl/edit-distance
[INFO] finished tweaking git repo https://github.com/stillzhl/edit-distance
[INFO] tweaked toml for git repo https://github.com/stillzhl/edit-distance written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/stillzhl/edit-distance 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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e46cc61b983a4c4af33fb01172ac5c5d8a3d9690edd41c212da80bc93bb243b3
[INFO] running `Command { std: "docker" "start" "-a" "e46cc61b983a4c4af33fb01172ac5c5d8a3d9690edd41c212da80bc93bb243b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46cc61b983a4c4af33fb01172ac5c5d8a3d9690edd41c212da80bc93bb243b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46cc61b983a4c4af33fb01172ac5c5d8a3d9690edd41c212da80bc93bb243b3", kill_on_drop: false }`
[INFO] [stdout] e46cc61b983a4c4af33fb01172ac5c5d8a3d9690edd41c212da80bc93bb243b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8cd3209f2387eddac14037bd435db1b33764fca7eb9499d0a43a20d4d4594746
[INFO] running `Command { std: "docker" "start" "-a" "8cd3209f2387eddac14037bd435db1b33764fca7eb9499d0a43a20d4d4594746", kill_on_drop: false }`
[INFO] [stderr]     Checking edit-distance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "8cd3209f2387eddac14037bd435db1b33764fca7eb9499d0a43a20d4d4594746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd3209f2387eddac14037bd435db1b33764fca7eb9499d0a43a20d4d4594746", kill_on_drop: false }`
[INFO] [stdout] 8cd3209f2387eddac14037bd435db1b33764fca7eb9499d0a43a20d4d4594746
[INFO] checking stillzhl/edit-distance against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstillzhl%2Fedit-distance" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stillzhl/edit-distance 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/stillzhl/edit-distance
[INFO] finished tweaking git repo https://github.com/stillzhl/edit-distance
[INFO] tweaked toml for git repo https://github.com/stillzhl/edit-distance written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/stillzhl/edit-distance 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 37fbe14aa884f18892223ab35b5acd2429463bcf08a3bea634c200cba579744a
[INFO] running `Command { std: "docker" "start" "-a" "37fbe14aa884f18892223ab35b5acd2429463bcf08a3bea634c200cba579744a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37fbe14aa884f18892223ab35b5acd2429463bcf08a3bea634c200cba579744a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fbe14aa884f18892223ab35b5acd2429463bcf08a3bea634c200cba579744a", kill_on_drop: false }`
[INFO] [stdout] 37fbe14aa884f18892223ab35b5acd2429463bcf08a3bea634c200cba579744a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9db76955cb903a72972fd32d1924db6cb8bad0827a9e85b5256940380382eeae
[INFO] running `Command { std: "docker" "start" "-a" "9db76955cb903a72972fd32d1924db6cb8bad0827a9e85b5256940380382eeae", kill_on_drop: false }`
[INFO] [stderr]     Checking edit-distance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/dp.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     if s1.chars().nth(i as usize) == s2.chars().nth(j as usize) {
[INFO] [stdout] 18 | |         return dp(i - 1, j - 1, s1, s2);
[INFO] [stdout] 19 | |     } else {
[INFO] [stdout] 20 | |         return min(
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         );
[INFO] [stdout] 25 | |     };
[INFO] [stdout]    | |_____^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/dp.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     if s1.chars().nth(i as usize) == s2.chars().nth(j as usize) {
[INFO] [stdout] 18 | |         return dp(i - 1, j - 1, s1, s2);
[INFO] [stdout] 19 | |     } else {
[INFO] [stdout] 20 | |         return min(
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         );
[INFO] [stdout] 25 | |     };
[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 `edit-distance` (lib) 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 `edit-distance` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9db76955cb903a72972fd32d1924db6cb8bad0827a9e85b5256940380382eeae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db76955cb903a72972fd32d1924db6cb8bad0827a9e85b5256940380382eeae", kill_on_drop: false }`
[INFO] [stdout] 9db76955cb903a72972fd32d1924db6cb8bad0827a9e85b5256940380382eeae