[INFO] updating cached repository https://github.com/brownjohnf/jottr
[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] 1907dd8873dd982af401ff3113f039e8eab27cb5
[INFO] checking brownjohnf/jottr against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrownjohnf%2Fjottr" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brownjohnf/jottr on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/brownjohnf/jottr
[INFO] finished tweaking git repo https://github.com/brownjohnf/jottr
[INFO] tweaked toml for git repo https://github.com/brownjohnf/jottr written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/brownjohnf/jottr already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] 8195e79302cafbefed2c716739e423d656f287ada4ff23cd10d4a73be1b56a1f
[INFO] running `"docker" "start" "-a" "8195e79302cafbefed2c716739e423d656f287ada4ff23cd10d4a73be1b56a1f"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]    Compiling structopt-derive v0.2.17
[INFO] [stderr]     Checking structopt v0.2.17
[INFO] [stderr]     Checking changeme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/lib.rs:29:24
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn list(&self, arg: &str) -> Result<(), Error> {
[INFO] [stderr]    |                        ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/lib.rs:29:24
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn list(&self, arg: &str) -> Result<(), Error> {
[INFO] [stderr]    |                        ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `path`
[INFO] [stderr]   --> src/bin/changeme.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     path: Option<PathBuf>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `option2`
[INFO] [stderr]   --> src/bin/changeme.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     option2: Vec<String>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `dry_run`
[INFO] [stderr]   --> src/bin/changeme.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     dry_run: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `path`
[INFO] [stderr]   --> src/bin/changeme.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     path: Option<PathBuf>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `option2`
[INFO] [stderr]   --> src/bin/changeme.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     option2: Vec<String>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `dry_run`
[INFO] [stderr]   --> src/bin/changeme.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     dry_run: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.08s
[INFO] running `"docker" "inspect" "8195e79302cafbefed2c716739e423d656f287ada4ff23cd10d4a73be1b56a1f"`
[INFO] running `"docker" "rm" "-f" "8195e79302cafbefed2c716739e423d656f287ada4ff23cd10d4a73be1b56a1f"`
[INFO] [stdout] 8195e79302cafbefed2c716739e423d656f287ada4ff23cd10d4a73be1b56a1f