Dec 07 23:09:31.648 INFO testing balloon-0.0.1 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 23:09:31.648 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 07 23:09:32.034 INFO [stdout] 329c930c533dba746d876cb59f4e6c6f418642eb68657267653eb53c388bd8d3
Dec 07 23:09:32.041 INFO running `"docker" "start" "-a" "329c930c533dba746d876cb59f4e6c6f418642eb68657267653eb53c388bd8d3"`
Dec 07 23:09:33.368 INFO [stderr] usermod: no changes
Dec 07 23:09:33.456 INFO [stderr]    Compiling subtle v0.7.1
Dec 07 23:09:34.133 INFO [stderr]    Compiling balloon v0.0.1 (/source)
Dec 07 23:09:35.204 INFO [stderr] warning: method is never used: `get`
Dec 07 23:09:35.204 INFO [stderr]   --> src/buffer.rs:51:5
Dec 07 23:09:35.204 INFO [stderr]    |
Dec 07 23:09:35.204 INFO [stderr] 51 |     pub fn get(&self, index: usize) -> Option<&T> { self.back.get(index) }
Dec 07 23:09:35.204 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:35.204 INFO [stderr]    |
Dec 07 23:09:35.204 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 23:09:35.204 INFO [stderr] 
Dec 07 23:09:35.204 INFO [stderr] warning: method is never used: `get_mut`
Dec 07 23:09:35.204 INFO [stderr]   --> src/buffer.rs:54:5
Dec 07 23:09:35.204 INFO [stderr]    |
Dec 07 23:09:35.204 INFO [stderr] 54 |     pub fn get_mut(&mut self, index: usize) -> Option<&mut T> { self.back.get_mut(index) }
Dec 07 23:09:35.204 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:35.204 INFO [stderr] 
Dec 07 23:09:35.204 INFO [stderr] warning: method is never used: `clear`
Dec 07 23:09:35.204 INFO [stderr]   --> src/buffer.rs:57:5
Dec 07 23:09:35.205 INFO [stderr]    |
Dec 07 23:09:35.205 INFO [stderr] 57 |     pub fn clear(&mut self) { self.back.clear() }
Dec 07 23:09:35.205 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:35.205 INFO [stderr] 
Dec 07 23:09:35.205 INFO [stderr] warning: method is never used: `is_empty`
Dec 07 23:09:35.205 INFO [stderr]   --> src/buffer.rs:58:5
Dec 07 23:09:35.205 INFO [stderr]    |
Dec 07 23:09:35.205 INFO [stderr] 58 |     pub fn is_empty(&self) -> bool { self.back.is_empty() }
Dec 07 23:09:35.205 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:35.205 INFO [stderr] 
Dec 07 23:09:35.205 INFO [stderr] warning: method is never used: `len`
Dec 07 23:09:35.205 INFO [stderr]   --> src/buffer.rs:59:5
Dec 07 23:09:35.205 INFO [stderr]    |
Dec 07 23:09:35.205 INFO [stderr] 59 |     pub fn len(&self) -> usize { self.back.len() }
Dec 07 23:09:35.205 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:35.205 INFO [stderr] 
Dec 07 23:09:35.534 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
Dec 07 23:09:35.547 INFO [stderr] su: No module specific data is present
Dec 07 23:09:36.538 INFO running `"docker" "inspect" "329c930c533dba746d876cb59f4e6c6f418642eb68657267653eb53c388bd8d3"`
Dec 07 23:09:36.814 INFO running `"docker" "rm" "-f" "329c930c533dba746d876cb59f4e6c6f418642eb68657267653eb53c388bd8d3"`
Dec 07 23:09:37.018 INFO [stdout] 329c930c533dba746d876cb59f4e6c6f418642eb68657267653eb53c388bd8d3
Dec 07 23:09:37.020 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 07 23:09:37.474 INFO [stdout] 43764a9dd639f621c6cae852386c7f50fbdbd1bc137f73cb4f044e53b3ef0c84
Dec 07 23:09:37.475 INFO running `"docker" "start" "-a" "43764a9dd639f621c6cae852386c7f50fbdbd1bc137f73cb4f044e53b3ef0c84"`
Dec 07 23:09:38.564 INFO [stderr] usermod: no changes
Dec 07 23:09:38.631 INFO [stderr]    Compiling balloon v0.0.1 (/source)
Dec 07 23:09:39.621 INFO [stderr] warning: method is never used: `get`
Dec 07 23:09:39.622 INFO [stderr]   --> src/buffer.rs:51:5
Dec 07 23:09:39.622 INFO [stderr]    |
Dec 07 23:09:39.622 INFO [stderr] 51 |     pub fn get(&self, index: usize) -> Option<&T> { self.back.get(index) }
Dec 07 23:09:39.622 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:39.622 INFO [stderr]    |
Dec 07 23:09:39.622 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 07 23:09:39.622 INFO [stderr] 
Dec 07 23:09:39.622 INFO [stderr] warning: method is never used: `get_mut`
Dec 07 23:09:39.622 INFO [stderr]   --> src/buffer.rs:54:5
Dec 07 23:09:39.622 INFO [stderr]    |
Dec 07 23:09:39.622 INFO [stderr] 54 |     pub fn get_mut(&mut self, index: usize) -> Option<&mut T> { self.back.get_mut(index) }
Dec 07 23:09:39.622 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:39.622 INFO [stderr] 
Dec 07 23:09:39.622 INFO [stderr] warning: method is never used: `clear`
Dec 07 23:09:39.622 INFO [stderr]   --> src/buffer.rs:57:5
Dec 07 23:09:39.622 INFO [stderr]    |
Dec 07 23:09:39.622 INFO [stderr] 57 |     pub fn clear(&mut self) { self.back.clear() }
Dec 07 23:09:39.622 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:39.622 INFO [stderr] 
Dec 07 23:09:39.622 INFO [stderr] warning: method is never used: `is_empty`
Dec 07 23:09:39.622 INFO [stderr]   --> src/buffer.rs:58:5
Dec 07 23:09:39.622 INFO [stderr]    |
Dec 07 23:09:39.622 INFO [stderr] 58 |     pub fn is_empty(&self) -> bool { self.back.is_empty() }
Dec 07 23:09:39.622 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:39.622 INFO [stderr] 
Dec 07 23:09:39.622 INFO [stderr] warning: method is never used: `len`
Dec 07 23:09:39.622 INFO [stderr]   --> src/buffer.rs:59:5
Dec 07 23:09:39.622 INFO [stderr]    |
Dec 07 23:09:39.622 INFO [stderr] 59 |     pub fn len(&self) -> usize { self.back.len() }
Dec 07 23:09:39.622 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 07 23:09:39.622 INFO [stderr] 
Dec 07 23:09:40.368 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
Dec 07 23:09:40.368 INFO [stderr] su: No module specific data is present
Dec 07 23:09:41.022 INFO running `"docker" "inspect" "43764a9dd639f621c6cae852386c7f50fbdbd1bc137f73cb4f044e53b3ef0c84"`
Dec 07 23:09:41.265 INFO running `"docker" "rm" "-f" "43764a9dd639f621c6cae852386c7f50fbdbd1bc137f73cb4f044e53b3ef0c84"`
Dec 07 23:09:41.708 INFO [stdout] 43764a9dd639f621c6cae852386c7f50fbdbd1bc137f73cb4f044e53b3ef0c84
Dec 07 23:09:41.714 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 07 23:09:42.144 INFO [stdout] c1a2e1270cd584cba942e138871be944f8760fcd91f4e9ee720b6c6e70667ef3
Dec 07 23:09:42.146 INFO running `"docker" "start" "-a" "c1a2e1270cd584cba942e138871be944f8760fcd91f4e9ee720b6c6e70667ef3"`
Dec 07 23:09:43.855 INFO [stderr] usermod: no changes
Dec 07 23:09:43.913 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 07 23:09:43.913 INFO [stderr]      Running /target/debug/deps/balloon-0858e8348cf5b78b
Dec 07 23:09:43.916 INFO [stdout] 
Dec 07 23:09:43.916 INFO [stdout] running 1 test
Dec 07 23:09:44.000 INFO [stderr]    Doc-tests balloon
Dec 07 23:09:44.000 INFO [stdout] test tests::it_works ... ok
Dec 07 23:09:44.000 INFO [stdout] 
Dec 07 23:09:44.000 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 23:09:44.000 INFO [stdout] 
Dec 07 23:09:45.420 INFO [stdout] 
Dec 07 23:09:45.420 INFO [stdout] running 0 tests
Dec 07 23:09:45.420 INFO [stdout] 
Dec 07 23:09:45.420 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 23:09:45.420 INFO [stdout] 
Dec 07 23:09:45.427 INFO [stderr] su: No module specific data is present
Dec 07 23:09:46.056 INFO running `"docker" "inspect" "c1a2e1270cd584cba942e138871be944f8760fcd91f4e9ee720b6c6e70667ef3"`
Dec 07 23:09:46.305 INFO running `"docker" "rm" "-f" "c1a2e1270cd584cba942e138871be944f8760fcd91f4e9ee720b6c6e70667ef3"`
Dec 07 23:09:46.520 INFO [stdout] c1a2e1270cd584cba942e138871be944f8760fcd91f4e9ee720b6c6e70667ef3