[INFO] updating cached repository https://github.com/BlueTeleco/i3themes
[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] 2f39c445f071dd33b030f66c47adb67f26ef4757
[INFO] checking BlueTeleco/i3themes against master#73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueTeleco%2Fi3themes" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlueTeleco/i3themes on toolchain 73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BlueTeleco/i3themes
[INFO] finished tweaking git repo https://github.com/BlueTeleco/i3themes
[INFO] tweaked toml for git repo https://github.com/BlueTeleco/i3themes written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/BlueTeleco/i3themes already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de8f3a34fc3ce2e7456b48a4869335c9855dc7402f1939e0280e4b2c69fec234
[INFO] running `"docker" "start" "-a" "de8f3a34fc3ce2e7456b48a4869335c9855dc7402f1939e0280e4b2c69fec234"`
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking i3themes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `meta`
[INFO] [stderr]    --> src/i3config.rs:119:4
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn meta() -> HashMap<&'static str,&'static str> {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `theme_vars`
[INFO] [stderr]    --> src/i3config.rs:125:4
[INFO] [stderr]     |
[INFO] [stderr] 125 | fn theme_vars(file: &File) -> HashMap<String, String> {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `meta`
[INFO] [stderr]    --> src/i3config.rs:119:4
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn meta() -> HashMap<&'static str,&'static str> {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `theme_vars`
[INFO] [stderr]    --> src/i3config.rs:125:4
[INFO] [stderr]     |
[INFO] [stderr] 125 | fn theme_vars(file: &File) -> HashMap<String, String> {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.64s
[INFO] running `"docker" "inspect" "de8f3a34fc3ce2e7456b48a4869335c9855dc7402f1939e0280e4b2c69fec234"`
[INFO] running `"docker" "rm" "-f" "de8f3a34fc3ce2e7456b48a4869335c9855dc7402f1939e0280e4b2c69fec234"`
[INFO] [stdout] de8f3a34fc3ce2e7456b48a4869335c9855dc7402f1939e0280e4b2c69fec234