[INFO] cloning repository https://github.com/djhunter67/leetcode_adventure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djhunter67/leetcode_adventure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjhunter67%2Fleetcode_adventure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjhunter67%2Fleetcode_adventure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46864efdbc932d47a6e915be1d24c78a0d420a87
[INFO] checking djhunter67/leetcode_adventure against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjhunter67%2Fleetcode_adventure" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/djhunter67/leetcode_adventure on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/djhunter67/leetcode_adventure
[INFO] finished tweaking git repo https://github.com/djhunter67/leetcode_adventure
[INFO] tweaked toml for git repo https://github.com/djhunter67/leetcode_adventure written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/djhunter67/leetcode_adventure 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67f6cb63c58fba7ca8c2d2e82759c36b4fc1cd87de81af832eaf9518226a18ca
[INFO] running `Command { std: "docker" "start" "-a" "67f6cb63c58fba7ca8c2d2e82759c36b4fc1cd87de81af832eaf9518226a18ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67f6cb63c58fba7ca8c2d2e82759c36b4fc1cd87de81af832eaf9518226a18ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67f6cb63c58fba7ca8c2d2e82759c36b4fc1cd87de81af832eaf9518226a18ca", kill_on_drop: false }`
[INFO] [stdout] 67f6cb63c58fba7ca8c2d2e82759c36b4fc1cd87de81af832eaf9518226a18ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d3b95d3eca1b7342001188f16fb768634065ea7a5c2d7e89b05a7caa1712866
[INFO] running `Command { std: "docker" "start" "-a" "3d3b95d3eca1b7342001188f16fb768634065ea7a5c2d7e89b05a7caa1712866", kill_on_drop: false }`
[INFO] [stderr]     Checking two_sum v0.1.0 (/opt/rustwide/workdir/two_sum)
[INFO] [stderr]     Checking palindrome_number v0.1.0 (/opt/rustwide/workdir/palindrome_number)
[INFO] [stderr]     Checking add_two_numbers v0.1.0 (/opt/rustwide/workdir/add_two_numbers)
[INFO] [stderr]     Checking roman_to_integer v0.1.0 (/opt/rustwide/workdir/roman_to_integer)
[INFO] [stderr]     Checking intersection_of_two_arrays v0.1.0 (/opt/rustwide/workdir/intersection_of_two_arrays)
[INFO] [stdout] error[E0277]: the trait bound `String: From<i32>` is not satisfied
[INFO] [stdout]   --> roman_to_integer/src/lib.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     num.iter_mut().map(|x| String::from(*x)).collect::<Vec<String>>();
[INFO] [stdout]    |                            ^^^^^^ the trait `From<i32>` is not implemented for `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              <String as From<&String>>
[INFO] [stdout]              <String as From<&mut str>>
[INFO] [stdout]              <String as From<&str>>
[INFO] [stdout]              <String as From<Box<str>>>
[INFO] [stdout]              <String as From<Cow<'a, str>>>
[INFO] [stdout]              <String as From<char>>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `String: From<i32>` is not satisfied
[INFO] [stdout]   --> roman_to_integer/src/lib.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |     num.iter_mut().map(|x| String::from(*x)).collect::<Vec<String>>();
[INFO] [stdout]    |                            ^^^^^^ the trait `From<i32>` is not implemented for `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              <String as From<&String>>
[INFO] [stdout]              <String as From<&mut str>>
[INFO] [stdout]              <String as From<&str>>
[INFO] [stdout]              <String as From<Box<str>>>
[INFO] [stdout]              <String as From<Cow<'a, str>>>
[INFO] [stdout]              <String as From<char>>
[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 E0277`.
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `roman_to_integer` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `roman_to_integer` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3d3b95d3eca1b7342001188f16fb768634065ea7a5c2d7e89b05a7caa1712866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3b95d3eca1b7342001188f16fb768634065ea7a5c2d7e89b05a7caa1712866", kill_on_drop: false }`
[INFO] [stdout] 3d3b95d3eca1b7342001188f16fb768634065ea7a5c2d7e89b05a7caa1712866