[INFO] updating cached repository https://github.com/fxdave/simple-clock-rs
[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] 7d1a706bd307bb839a353fc57700cd68c320c4af
[INFO] checking fxdave/simple-clock-rs against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffxdave%2Fsimple-clock-rs" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fxdave/simple-clock-rs on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fxdave/simple-clock-rs
[INFO] finished tweaking git repo https://github.com/fxdave/simple-clock-rs
[INFO] tweaked toml for git repo https://github.com/fxdave/simple-clock-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/fxdave/simple-clock-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 76964e4f1ab389e7e61262e79eb08344a3109107cbf7f9eaf83ba83b867d0cee
[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" "76964e4f1ab389e7e61262e79eb08344a3109107cbf7f9eaf83ba83b867d0cee"`
[INFO] [stderr]    Compiling cairo-rs v0.1.3 (https://github.com/charlesvdv/cairo#dcab9ce4)
[INFO] [stderr]    Compiling cairo-sys-rs v0.3.4 (https://github.com/charlesvdv/cairo#dcab9ce4)
[INFO] [stderr]     Checking schedule_recv v0.1.0
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking simple-clock-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | /     loop {
[INFO] [stderr] 52 | |         gc.set_source_rgba(bg.0, bg.1, bg.2, bg.3);
[INFO] [stderr] 53 | |         gc.fill_preserve();
[INFO] [stderr] 54 | |         gc.set_source_rgba(fg.0, fg.1, fg.2, fg.3);
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |         tick.recv().unwrap();
[INFO] [stderr] 60 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 64 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | /     loop {
[INFO] [stderr] 52 | |         gc.set_source_rgba(bg.0, bg.1, bg.2, bg.3);
[INFO] [stderr] 53 | |         gc.fill_preserve();
[INFO] [stderr] 54 | |         gc.set_source_rgba(fg.0, fg.1, fg.2, fg.3);
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |         tick.recv().unwrap();
[INFO] [stderr] 60 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 64 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `paint`
[INFO] [stderr]   --> src/x/graphics_context.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn paint(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `wait_for_exit`
[INFO] [stderr]   --> src/x/mod.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn wait_for_exit(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `paint`
[INFO] [stderr]   --> src/x/graphics_context.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn paint(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `wait_for_exit`
[INFO] [stderr]   --> src/x/mod.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn wait_for_exit(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.10s
[INFO] running `"docker" "inspect" "76964e4f1ab389e7e61262e79eb08344a3109107cbf7f9eaf83ba83b867d0cee"`
[INFO] running `"docker" "rm" "-f" "76964e4f1ab389e7e61262e79eb08344a3109107cbf7f9eaf83ba83b867d0cee"`
[INFO] [stdout] 76964e4f1ab389e7e61262e79eb08344a3109107cbf7f9eaf83ba83b867d0cee