Dec 15 21:43:52.844 INFO testing balloon-0.0.1 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 21:43:52.844 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 21:43:53.271 INFO [stdout] 4232b7fc42b85d90b4dcccb4499ddc8d7816eb815a5272c3a9d8fa2b0f89e325
Dec 15 21:43:53.273 INFO running `"docker" "start" "-a" "4232b7fc42b85d90b4dcccb4499ddc8d7816eb815a5272c3a9d8fa2b0f89e325"`
Dec 15 21:43:55.431 INFO [stderr] usermod: no changes
Dec 15 21:43:55.533 INFO [stderr]    Compiling subtle v0.7.1
Dec 15 21:43:55.543 INFO [stderr]    Compiling blake2-rfc v0.2.18
Dec 15 21:43:55.543 INFO [stderr]    Compiling num-bigint v0.2.1
Dec 15 21:44:00.919 INFO [stderr]    Compiling balloon v0.0.1 (/source)
Dec 15 21:44:01.965 INFO [stderr] warning: method is never used: `get`
Dec 15 21:44:01.965 INFO [stderr]   --> src/buffer.rs:51:5
Dec 15 21:44:01.965 INFO [stderr]    |
Dec 15 21:44:01.965 INFO [stderr] 51 |     pub fn get(&self, index: usize) -> Option<&T> { self.back.get(index) }
Dec 15 21:44:01.965 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:01.965 INFO [stderr]    |
Dec 15 21:44:01.965 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 21:44:01.965 INFO [stderr] 
Dec 15 21:44:01.965 INFO [stderr] warning: method is never used: `get_mut`
Dec 15 21:44:01.965 INFO [stderr]   --> src/buffer.rs:54:5
Dec 15 21:44:01.965 INFO [stderr]    |
Dec 15 21:44:01.965 INFO [stderr] 54 |     pub fn get_mut(&mut self, index: usize) -> Option<&mut T> { self.back.get_mut(index) }
Dec 15 21:44:01.965 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:01.965 INFO [stderr] 
Dec 15 21:44:01.965 INFO [stderr] warning: method is never used: `clear`
Dec 15 21:44:01.965 INFO [stderr]   --> src/buffer.rs:57:5
Dec 15 21:44:01.965 INFO [stderr]    |
Dec 15 21:44:01.965 INFO [stderr] 57 |     pub fn clear(&mut self) { self.back.clear() }
Dec 15 21:44:01.965 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:01.965 INFO [stderr] 
Dec 15 21:44:01.965 INFO [stderr] warning: method is never used: `is_empty`
Dec 15 21:44:01.965 INFO [stderr]   --> src/buffer.rs:58:5
Dec 15 21:44:01.965 INFO [stderr]    |
Dec 15 21:44:01.965 INFO [stderr] 58 |     pub fn is_empty(&self) -> bool { self.back.is_empty() }
Dec 15 21:44:01.965 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:01.965 INFO [stderr] 
Dec 15 21:44:01.965 INFO [stderr] warning: method is never used: `len`
Dec 15 21:44:01.965 INFO [stderr]   --> src/buffer.rs:59:5
Dec 15 21:44:01.965 INFO [stderr]    |
Dec 15 21:44:01.966 INFO [stderr] 59 |     pub fn len(&self) -> usize { self.back.len() }
Dec 15 21:44:01.966 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:01.966 INFO [stderr] 
Dec 15 21:44:02.188 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.73s
Dec 15 21:44:02.192 INFO [stderr] su: No module specific data is present
Dec 15 21:44:02.658 INFO running `"docker" "inspect" "4232b7fc42b85d90b4dcccb4499ddc8d7816eb815a5272c3a9d8fa2b0f89e325"`
Dec 15 21:44:02.767 INFO running `"docker" "rm" "-f" "4232b7fc42b85d90b4dcccb4499ddc8d7816eb815a5272c3a9d8fa2b0f89e325"`
Dec 15 21:44:02.904 INFO [stdout] 4232b7fc42b85d90b4dcccb4499ddc8d7816eb815a5272c3a9d8fa2b0f89e325
Dec 15 21:44:02.907 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 21:44:03.167 INFO [stdout] a90adebab733a9435faeb2a151b2d56a3cc6917b963fbb0f5ef7f8a025883481
Dec 15 21:44:03.169 INFO running `"docker" "start" "-a" "a90adebab733a9435faeb2a151b2d56a3cc6917b963fbb0f5ef7f8a025883481"`
Dec 15 21:44:04.053 INFO [stderr] usermod: no changes
Dec 15 21:44:04.115 INFO [stderr]    Compiling balloon v0.0.1 (/source)
Dec 15 21:44:05.251 INFO [stderr] warning: method is never used: `get`
Dec 15 21:44:05.251 INFO [stderr]   --> src/buffer.rs:51:5
Dec 15 21:44:05.251 INFO [stderr]    |
Dec 15 21:44:05.251 INFO [stderr] 51 |     pub fn get(&self, index: usize) -> Option<&T> { self.back.get(index) }
Dec 15 21:44:05.251 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:05.251 INFO [stderr]    |
Dec 15 21:44:05.251 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 21:44:05.251 INFO [stderr] 
Dec 15 21:44:05.251 INFO [stderr] warning: method is never used: `get_mut`
Dec 15 21:44:05.251 INFO [stderr]   --> src/buffer.rs:54:5
Dec 15 21:44:05.251 INFO [stderr]    |
Dec 15 21:44:05.251 INFO [stderr] 54 |     pub fn get_mut(&mut self, index: usize) -> Option<&mut T> { self.back.get_mut(index) }
Dec 15 21:44:05.251 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:05.251 INFO [stderr] 
Dec 15 21:44:05.251 INFO [stderr] warning: method is never used: `clear`
Dec 15 21:44:05.251 INFO [stderr]   --> src/buffer.rs:57:5
Dec 15 21:44:05.251 INFO [stderr]    |
Dec 15 21:44:05.251 INFO [stderr] 57 |     pub fn clear(&mut self) { self.back.clear() }
Dec 15 21:44:05.251 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:05.251 INFO [stderr] 
Dec 15 21:44:05.251 INFO [stderr] warning: method is never used: `is_empty`
Dec 15 21:44:05.251 INFO [stderr]   --> src/buffer.rs:58:5
Dec 15 21:44:05.251 INFO [stderr]    |
Dec 15 21:44:05.251 INFO [stderr] 58 |     pub fn is_empty(&self) -> bool { self.back.is_empty() }
Dec 15 21:44:05.251 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:05.251 INFO [stderr] 
Dec 15 21:44:05.251 INFO [stderr] warning: method is never used: `len`
Dec 15 21:44:05.251 INFO [stderr]   --> src/buffer.rs:59:5
Dec 15 21:44:05.251 INFO [stderr]    |
Dec 15 21:44:05.251 INFO [stderr] 59 |     pub fn len(&self) -> usize { self.back.len() }
Dec 15 21:44:05.251 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 21:44:05.251 INFO [stderr] 
Dec 15 21:44:05.691 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
Dec 15 21:44:05.695 INFO [stderr] su: No module specific data is present
Dec 15 21:44:06.723 INFO running `"docker" "inspect" "a90adebab733a9435faeb2a151b2d56a3cc6917b963fbb0f5ef7f8a025883481"`
Dec 15 21:44:06.877 INFO running `"docker" "rm" "-f" "a90adebab733a9435faeb2a151b2d56a3cc6917b963fbb0f5ef7f8a025883481"`
Dec 15 21:44:07.057 INFO [stdout] a90adebab733a9435faeb2a151b2d56a3cc6917b963fbb0f5ef7f8a025883481
Dec 15 21:44:07.058 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 21:44:07.295 INFO [stdout] dc9fe1da4835de1655722c262e982e77d31aa7b424039c8b631cdb10f4b61765
Dec 15 21:44:07.297 INFO running `"docker" "start" "-a" "dc9fe1da4835de1655722c262e982e77d31aa7b424039c8b631cdb10f4b61765"`
Dec 15 21:44:07.968 INFO [stderr] usermod: no changes
Dec 15 21:44:08.009 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 15 21:44:08.010 INFO [stderr]      Running /target/debug/deps/balloon-5baa14aa0ba0ed15
Dec 15 21:44:08.012 INFO [stdout] 
Dec 15 21:44:08.012 INFO [stdout] running 1 test
Dec 15 21:44:08.077 INFO [stderr]    Doc-tests balloon
Dec 15 21:44:08.077 INFO [stdout] test tests::it_works ... ok
Dec 15 21:44:08.077 INFO [stdout] 
Dec 15 21:44:08.077 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 21:44:08.077 INFO [stdout] 
Dec 15 21:44:09.557 INFO [stdout] 
Dec 15 21:44:09.557 INFO [stdout] running 0 tests
Dec 15 21:44:09.557 INFO [stdout] 
Dec 15 21:44:09.557 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 21:44:09.557 INFO [stdout] 
Dec 15 21:44:09.565 INFO [stderr] su: No module specific data is present
Dec 15 21:44:09.893 INFO running `"docker" "inspect" "dc9fe1da4835de1655722c262e982e77d31aa7b424039c8b631cdb10f4b61765"`
Dec 15 21:44:09.984 INFO running `"docker" "rm" "-f" "dc9fe1da4835de1655722c262e982e77d31aa7b424039c8b631cdb10f4b61765"`
Dec 15 21:44:10.118 INFO [stdout] dc9fe1da4835de1655722c262e982e77d31aa7b424039c8b631cdb10f4b61765