[INFO] updating cached repository https://github.com/suhr/msfz
[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] 444927e9c715b6a56f4d926bbdd3f091ded516eb
[INFO] checking suhr/msfz against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhr%2Fmsfz" "/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/suhr/msfz on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/suhr/msfz
[INFO] finished tweaking git repo https://github.com/suhr/msfz
[INFO] tweaked toml for git repo https://github.com/suhr/msfz written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/suhr/msfz already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 7a1034c7b659bfc7b90adb18fca4ea533e0ff84d7c24d049e4ac1d3a8969bd8c
[INFO] running `"docker" "start" "-a" "7a1034c7b659bfc7b90adb18fca4ea533e0ff84d7c24d049e4ac1d3a8969bd8c"`
[INFO] [stderr]     Checking resample v0.1.0 (https://github.com/suhr/resample.git#4dbc5c81)
[INFO] [stderr]     Checking monochord v0.1.1
[INFO] [stderr]     Checking hound v3.3.1
[INFO] [stderr]     Checking libloading v0.4.3
[INFO] [stderr]     Checking jack-sys v0.2.0
[INFO] [stderr]     Checking jack v0.6.0
[INFO] [stderr]     Checking msfz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::error`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::error;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::error;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:208:5
[INFO] [stderr]     |
[INFO] [stderr] 179 | /     loop {
[INFO] [stderr] 180 | |         use miosc::MioscMessage as MM;
[INFO] [stderr] 181 | |         let msg = read_miosc(&socket);
[INFO] [stderr] 182 | |         // let sample = Sample {
[INFO] [stderr] ...   |
[INFO] [stderr] 205 | |         ::std::thread::sleep(dt);
[INFO] [stderr] 206 | |     }
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 207 | 
[INFO] [stderr] 208 |       active_client.deactivate().unwrap();
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:208:5
[INFO] [stderr]     |
[INFO] [stderr] 179 | /     loop {
[INFO] [stderr] 180 | |         use miosc::MioscMessage as MM;
[INFO] [stderr] 181 | |         let msg = read_miosc(&socket);
[INFO] [stderr] 182 | |         // let sample = Sample {
[INFO] [stderr] ...   |
[INFO] [stderr] 205 | |         ::std::thread::sleep(dt);
[INFO] [stderr] 206 | |     }
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] 207 | 
[INFO] [stderr] 208 |       active_client.deactivate().unwrap();
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `active_client`
[INFO] [stderr]    --> src/main.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |     let active_client = client.activate_async((), process).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_active_client`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `active_client`
[INFO] [stderr]    --> src/main.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |     let active_client = client.activate_async((), process).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_active_client`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `"docker" "inspect" "7a1034c7b659bfc7b90adb18fca4ea533e0ff84d7c24d049e4ac1d3a8969bd8c"`
[INFO] running `"docker" "rm" "-f" "7a1034c7b659bfc7b90adb18fca4ea533e0ff84d7c24d049e4ac1d3a8969bd8c"`
[INFO] [stdout] 7a1034c7b659bfc7b90adb18fca4ea533e0ff84d7c24d049e4ac1d3a8969bd8c