[INFO] cloning repository https://github.com/soumil-kumar17/neetkode-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/soumil-kumar17/neetkode-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoumil-kumar17%2Fneetkode-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoumil-kumar17%2Fneetkode-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e9e81401a6eda46d36595d144e68b0c84e63557
[INFO] checking soumil-kumar17/neetkode-rs against try#f3d95de532264a1215023baa665c0028aecf74b1 for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoumil-kumar17%2Fneetkode-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/soumil-kumar17/neetkode-rs
[INFO] finished tweaking git repo https://github.com/soumil-kumar17/neetkode-rs
[INFO] tweaked toml for git repo https://github.com/soumil-kumar17/neetkode-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/soumil-kumar17/neetkode-rs on toolchain f3d95de532264a1215023baa665c0028aecf74b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/soumil-kumar17/neetkode-rs 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" "+f3d95de532264a1215023baa665c0028aecf74b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3c642f6fe30ed997f193b06beb5030ef825951e9c4b23eca6eaae085d773ac3
[INFO] running `Command { std: "docker" "start" "-a" "d3c642f6fe30ed997f193b06beb5030ef825951e9c4b23eca6eaae085d773ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3c642f6fe30ed997f193b06beb5030ef825951e9c4b23eca6eaae085d773ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3c642f6fe30ed997f193b06beb5030ef825951e9c4b23eca6eaae085d773ac3", kill_on_drop: false }`
[INFO] [stdout] d3c642f6fe30ed997f193b06beb5030ef825951e9c4b23eca6eaae085d773ac3
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4a0c6e25268e61806943d60a12d612ba92c864d477c02b6e134a395b27463da
[INFO] running `Command { std: "docker" "start" "-a" "b4a0c6e25268e61806943d60a12d612ba92c864d477c02b6e134a395b27463da", kill_on_drop: false }`
[INFO] [stderr]     Checking neetkode-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/longest_substring_chars.rs:4:56
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn character_replacement(s: String, k: i32) -> i32 {
[INFO] [stdout]   |            ---------------------                       ^^^ expected `i32`, found `()`
[INFO] [stdout]   |            |
[INFO] [stdout]   |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout] help: consider returning the local binding `k`
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn character_replacement(s: String, k: i32) -> i32 {
[INFO] [stdout] 5 ~         k
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/longest_substring_chars.rs:4:56
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn character_replacement(s: String, k: i32) -> i32 {
[INFO] [stdout]   |            ---------------------                       ^^^ expected `i32`, found `()`
[INFO] [stdout]   |            |
[INFO] [stdout]   |            implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout] help: consider returning the local binding `k`
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn character_replacement(s: String, k: i32) -> i32 {
[INFO] [stdout] 5 ~         k
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `neetkode-rs` (bin "neetkode-rs" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `neetkode-rs` (bin "neetkode-rs") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b4a0c6e25268e61806943d60a12d612ba92c864d477c02b6e134a395b27463da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4a0c6e25268e61806943d60a12d612ba92c864d477c02b6e134a395b27463da", kill_on_drop: false }`
[INFO] [stdout] b4a0c6e25268e61806943d60a12d612ba92c864d477c02b6e134a395b27463da