[INFO] updating cached repository https://github.com/Mr-Malomz/rustlang_journey
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6e69dcbe943176aaba53b99e84745295d4d55095
[INFO] checking Mr-Malomz/rustlang_journey against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMr-Malomz%2Frustlang_journey" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mr-Malomz/rustlang_journey on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Mr-Malomz/rustlang_journey
[INFO] finished tweaking git repo https://github.com/Mr-Malomz/rustlang_journey
[INFO] tweaked toml for git repo https://github.com/Mr-Malomz/rustlang_journey written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Mr-Malomz/rustlang_journey already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "/opt/rustwide/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] eacf6e245e82fb43bc208941f06bf3877d8ec58ade613c2a65cc2e01c683deff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "eacf6e245e82fb43bc208941f06bf3877d8ec58ade613c2a65cc2e01c683deff"`
[INFO] [stderr]     Checking rustlang_journey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `owner`
[INFO] [stderr]  --> src/ownership.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn owner() {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_length`
[INFO] [stderr]   --> src/ownership.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn calculate_length(s: &String) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `first_word`
[INFO] [stderr]   --> src/ownership.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn first_word(s: &String) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `area`
[INFO] [stderr]  --> src/structs.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn area(&self) -> u32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `owner`
[INFO] [stderr]  --> src/ownership.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn owner() {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calculate_length`
[INFO] [stderr]   --> src/ownership.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn calculate_length(s: &String) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `first_word`
[INFO] [stderr]   --> src/ownership.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn first_word(s: &String) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `area`
[INFO] [stderr]  --> src/structs.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn area(&self) -> u32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "eacf6e245e82fb43bc208941f06bf3877d8ec58ade613c2a65cc2e01c683deff"`
[INFO] running `"docker" "rm" "-f" "eacf6e245e82fb43bc208941f06bf3877d8ec58ade613c2a65cc2e01c683deff"`
[INFO] [stdout] eacf6e245e82fb43bc208941f06bf3877d8ec58ade613c2a65cc2e01c683deff