[INFO] updating cached repository https://github.com/FrancescoCommisso/rustbridge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cb8d8f6056c7b39d971e59b09fec69d96a8514a
[INFO] checking FrancescoCommisso/rustbridge against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrancescoCommisso%2Frustbridge" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FrancescoCommisso/rustbridge on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FrancescoCommisso/rustbridge
[INFO] finished tweaking git repo https://github.com/FrancescoCommisso/rustbridge
[INFO] tweaked toml for git repo https://github.com/FrancescoCommisso/rustbridge written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/FrancescoCommisso/rustbridge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b17ac3ef4bb667be935f771dcc1becb63add96e1ce60d2a4ea495003bc51e7e
[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" "0b17ac3ef4bb667be935f771dcc1becb63add96e1ce60d2a4ea495003bc51e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b17ac3ef4bb667be935f771dcc1becb63add96e1ce60d2a4ea495003bc51e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b17ac3ef4bb667be935f771dcc1becb63add96e1ce60d2a4ea495003bc51e7e", kill_on_drop: false }`
[INFO] [stdout] 0b17ac3ef4bb667be935f771dcc1becb63add96e1ce60d2a4ea495003bc51e7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20eb767b7cb4519e2737ae4986cdad712d2139a178589cc94de6d06297a8489b
[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" "20eb767b7cb4519e2737ae4986cdad712d2139a178589cc94de6d06297a8489b", kill_on_drop: false }`
[INFO] [stderr]     Checking assign4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::format_game`
[INFO] [stdout]  --> src/testing.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::format_game;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `permutation`
[INFO] [stdout]  --> src/main.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn with_permutation(permutation: Vec<usize>) -> Self {
[INFO] [stdout]   |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permutation`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `permutation`
[INFO] [stdout]  --> src/main.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn with_permutation(permutation: Vec<usize>) -> Self {
[INFO] [stdout]   |                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_permutation`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_indices`
[INFO] [stdout]    --> src/testing.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn to_indices(cards: &str) -> Vec<usize> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_north_east_south_west`
[INFO] [stdout]    --> src/testing.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn from_north_east_south_west(north:&str,east:&str,south:&str,west:&str) -> Vec<usize> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "20eb767b7cb4519e2737ae4986cdad712d2139a178589cc94de6d06297a8489b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eb767b7cb4519e2737ae4986cdad712d2139a178589cc94de6d06297a8489b", kill_on_drop: false }`
[INFO] [stdout] 20eb767b7cb4519e2737ae4986cdad712d2139a178589cc94de6d06297a8489b