[INFO] cloning repository https://github.com/deliangyang/leetcode.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deliangyang/leetcode.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeliangyang%2Fleetcode.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeliangyang%2Fleetcode.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 443aaa4bd7a08b8686b4ea70433c7c28c60b2492
[INFO] checking deliangyang/leetcode.rs against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeliangyang%2Fleetcode.rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/deliangyang/leetcode.rs on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deliangyang/leetcode.rs
[INFO] finished tweaking git repo https://github.com/deliangyang/leetcode.rs
[INFO] tweaked toml for git repo https://github.com/deliangyang/leetcode.rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/deliangyang/leetcode.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b412d7c676720c59035180a13b0b7be4b07b5c7efa04c5f1fe87fd8100cc4f85
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b412d7c676720c59035180a13b0b7be4b07b5c7efa04c5f1fe87fd8100cc4f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b412d7c676720c59035180a13b0b7be4b07b5c7efa04c5f1fe87fd8100cc4f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b412d7c676720c59035180a13b0b7be4b07b5c7efa04c5f1fe87fd8100cc4f85", kill_on_drop: false }`
[INFO] [stdout] b412d7c676720c59035180a13b0b7be4b07b5c7efa04c5f1fe87fd8100cc4f85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0b7d9e18d1a33adf8e57a6415fc2ee03c43bc146ee03eea409807c36504678f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a0b7d9e18d1a33adf8e57a6415fc2ee03c43bc146ee03eea409807c36504678f", kill_on_drop: false }`
[INFO] [stderr]     Checking demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/bin/re-space-lcci.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `demo`.
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/bin/re-space-lcci.rs:3:58
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn respace(dictionary: Vec<String>, sentence: String) -> 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] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/int_to_roman.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     String::from_utf8(chars).unwrap()
[INFO] [stdout]    |                       ^^^^^ expected `u8`, found `char`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<u8>`
[INFO] [stdout]               found struct `Vec<char>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/int_to_roman.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     String::from_utf8(chars).unwrap()
[INFO] [stdout]    |                       ^^^^^ expected `u8`, found `char`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<u8>`
[INFO] [stdout]               found struct `Vec<char>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a0b7d9e18d1a33adf8e57a6415fc2ee03c43bc146ee03eea409807c36504678f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0b7d9e18d1a33adf8e57a6415fc2ee03c43bc146ee03eea409807c36504678f", kill_on_drop: false }`
[INFO] [stdout] a0b7d9e18d1a33adf8e57a6415fc2ee03c43bc146ee03eea409807c36504678f
