Dec 12 17:41:25.721 INFO checking beep-0.2.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 17:41:25.721 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 17:41:26.295 INFO [stdout] 34a9a13f0a63eee73ed4558a38ce4e5ec112a030eeba04dc10962daffc090e39
Dec 12 17:41:26.297 INFO running `"docker" "start" "-a" "34a9a13f0a63eee73ed4558a38ce4e5ec112a030eeba04dc10962daffc090e39"`
Dec 12 17:41:27.968 INFO [stderr] usermod: no changes
Dec 12 17:41:28.048 INFO [stderr]     Checking generic-array v0.5.1
Dec 12 17:41:28.756 INFO [stderr]     Checking dimensioned v0.6.0
Dec 12 17:41:36.229 INFO [stderr]     Checking beep v0.2.1 (/source)
Dec 12 17:41:38.172 INFO [stderr] warning: unused variable: `F`
Dec 12 17:41:38.172 INFO [stderr]   --> examples/song.rs:13:7
Dec 12 17:41:38.172 INFO [stderr]    |
Dec 12 17:41:38.172 INFO [stderr] 13 |   let F = Hertz::new(2673.0f64);
Dec 12 17:41:38.172 INFO [stderr]    |       ^ help: consider using `_F` instead
Dec 12 17:41:38.172 INFO [stderr]    |
Dec 12 17:41:38.172 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 17:41:38.172 INFO [stderr] 
Dec 12 17:41:38.176 INFO [stderr] warning: variable `C` should have a snake case name such as `c`
Dec 12 17:41:38.176 INFO [stderr]   --> examples/song.rs:10:7
Dec 12 17:41:38.176 INFO [stderr]    |
Dec 12 17:41:38.176 INFO [stderr] 10 |   let C = Hertz::new(2093.0f64);
Dec 12 17:41:38.176 INFO [stderr]    |       ^
Dec 12 17:41:38.176 INFO [stderr]    |
Dec 12 17:41:38.176 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 12 17:41:38.176 INFO [stderr] 
Dec 12 17:41:38.176 INFO [stderr] warning: variable `D` should have a snake case name such as `d`
Dec 12 17:41:38.176 INFO [stderr]   --> examples/song.rs:11:7
Dec 12 17:41:38.176 INFO [stderr]    |
Dec 12 17:41:38.176 INFO [stderr] 11 |   let D = Hertz::new(2349.0f64);
Dec 12 17:41:38.176 INFO [stderr]    |       ^
Dec 12 17:41:38.176 INFO [stderr] 
Dec 12 17:41:38.176 INFO [stderr] warning: variable `E` should have a snake case name such as `e`
Dec 12 17:41:38.176 INFO [stderr]   --> examples/song.rs:12:7
Dec 12 17:41:38.176 INFO [stderr]    |
Dec 12 17:41:38.176 INFO [stderr] 12 |   let E = Hertz::new(2673.0f64);
Dec 12 17:41:38.176 INFO [stderr]    |       ^
Dec 12 17:41:38.176 INFO [stderr] 
Dec 12 17:41:38.176 INFO [stderr] warning: variable `F` should have a snake case name such as `f`
Dec 12 17:41:38.176 INFO [stderr]   --> examples/song.rs:13:7
Dec 12 17:41:38.176 INFO [stderr]    |
Dec 12 17:41:38.177 INFO [stderr] 13 |   let F = Hertz::new(2673.0f64);
Dec 12 17:41:38.177 INFO [stderr]    |       ^
Dec 12 17:41:38.177 INFO [stderr] 
Dec 12 17:41:38.177 INFO [stderr] warning: variable `G` should have a snake case name such as `g`
Dec 12 17:41:38.177 INFO [stderr]   --> examples/song.rs:14:7
Dec 12 17:41:38.177 INFO [stderr]    |
Dec 12 17:41:38.177 INFO [stderr] 14 |   let G = Hertz::new(3136.0f64);
Dec 12 17:41:38.177 INFO [stderr]    |       ^
Dec 12 17:41:38.177 INFO [stderr] 
Dec 12 17:41:38.222 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.24s
Dec 12 17:41:38.225 INFO [stderr] su: No module specific data is present
Dec 12 17:41:38.494 INFO running `"docker" "inspect" "34a9a13f0a63eee73ed4558a38ce4e5ec112a030eeba04dc10962daffc090e39"`
Dec 12 17:41:38.590 INFO running `"docker" "rm" "-f" "34a9a13f0a63eee73ed4558a38ce4e5ec112a030eeba04dc10962daffc090e39"`
Dec 12 17:41:38.704 INFO [stdout] 34a9a13f0a63eee73ed4558a38ce4e5ec112a030eeba04dc10962daffc090e39