Dec 14 19:39:19.892 INFO testing skylane-0.1.2 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 19:39:19.892 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 19:39:20.215 INFO [stdout] 1f8db70258b26f2c96cbf9d42c08497c4151df7aaeb33f010bf61a76d389b1fb
Dec 14 19:39:20.221 INFO running `"docker" "start" "-a" "1f8db70258b26f2c96cbf9d42c08497c4151df7aaeb33f010bf61a76d389b1fb"`
Dec 14 19:39:21.027 INFO [stderr] usermod: no changes
Dec 14 19:39:21.074 INFO [stderr]    Compiling nix v0.8.1
Dec 14 19:39:25.244 INFO [stderr]    Compiling skylane v0.1.2 (/source)
Dec 14 19:39:25.993 INFO [stderr] warning: variable does not need to be mutable
Dec 14 19:39:25.993 INFO [stderr]    --> src/connection.rs:201:22
Dec 14 19:39:25.994 INFO [stderr]     |
Dec 14 19:39:25.994 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Dec 14 19:39:25.994 INFO [stderr]     |                      ----^^^^^^^^^
Dec 14 19:39:25.994 INFO [stderr]     |                      |
Dec 14 19:39:25.994 INFO [stderr]     |                      help: remove this `mut`
Dec 14 19:39:25.994 INFO [stderr]     |
Dec 14 19:39:25.994 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 14 19:39:25.994 INFO [stderr] 
Dec 14 19:39:25.994 INFO [stderr] warning: variable does not need to be mutable
Dec 14 19:39:25.994 INFO [stderr]    --> src/connection.rs:202:22
Dec 14 19:39:25.994 INFO [stderr]     |
Dec 14 19:39:25.994 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Dec 14 19:39:25.994 INFO [stderr]     |                      ----^^^^^^^
Dec 14 19:39:25.995 INFO [stderr]     |                      |
Dec 14 19:39:25.995 INFO [stderr]     |                      help: remove this `mut`
Dec 14 19:39:25.995 INFO [stderr] 
Dec 14 19:39:26.426 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.37s
Dec 14 19:39:26.426 INFO [stderr] su: No module specific data is present
Dec 14 19:39:26.976 INFO running `"docker" "inspect" "1f8db70258b26f2c96cbf9d42c08497c4151df7aaeb33f010bf61a76d389b1fb"`
Dec 14 19:39:27.084 INFO running `"docker" "rm" "-f" "1f8db70258b26f2c96cbf9d42c08497c4151df7aaeb33f010bf61a76d389b1fb"`
Dec 14 19:39:27.176 INFO [stdout] 1f8db70258b26f2c96cbf9d42c08497c4151df7aaeb33f010bf61a76d389b1fb
Dec 14 19:39:27.179 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 19:39:27.478 INFO [stdout] 35aeb9c5fef500fc0f16802cae98559a710dd3c8ed7096becba2b7a793d8ac1e
Dec 14 19:39:27.480 INFO running `"docker" "start" "-a" "35aeb9c5fef500fc0f16802cae98559a710dd3c8ed7096becba2b7a793d8ac1e"`
Dec 14 19:39:27.998 INFO [stderr] usermod: no changes
Dec 14 19:39:28.033 INFO [stderr]    Compiling skylane v0.1.2 (/source)
Dec 14 19:39:28.909 INFO [stderr] warning: variable does not need to be mutable
Dec 14 19:39:28.909 INFO [stderr]    --> src/connection.rs:201:22
Dec 14 19:39:28.909 INFO [stderr]     |
Dec 14 19:39:28.909 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Dec 14 19:39:28.909 INFO [stderr]     |                      ----^^^^^^^^^
Dec 14 19:39:28.909 INFO [stderr]     |                      |
Dec 14 19:39:28.909 INFO [stderr]     |                      help: remove this `mut`
Dec 14 19:39:28.909 INFO [stderr]     |
Dec 14 19:39:28.909 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 14 19:39:28.909 INFO [stderr] 
Dec 14 19:39:28.909 INFO [stderr] warning: variable does not need to be mutable
Dec 14 19:39:28.909 INFO [stderr]    --> src/connection.rs:202:22
Dec 14 19:39:28.909 INFO [stderr]     |
Dec 14 19:39:28.909 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Dec 14 19:39:28.909 INFO [stderr]     |                      ----^^^^^^^
Dec 14 19:39:28.909 INFO [stderr]     |                      |
Dec 14 19:39:28.909 INFO [stderr]     |                      help: remove this `mut`
Dec 14 19:39:28.909 INFO [stderr] 
Dec 14 19:39:29.247 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
Dec 14 19:39:29.249 INFO [stderr] su: No module specific data is present
Dec 14 19:39:29.551 INFO running `"docker" "inspect" "35aeb9c5fef500fc0f16802cae98559a710dd3c8ed7096becba2b7a793d8ac1e"`
Dec 14 19:39:29.605 INFO running `"docker" "rm" "-f" "35aeb9c5fef500fc0f16802cae98559a710dd3c8ed7096becba2b7a793d8ac1e"`
Dec 14 19:39:29.718 INFO [stdout] 35aeb9c5fef500fc0f16802cae98559a710dd3c8ed7096becba2b7a793d8ac1e
Dec 14 19:39:29.720 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 19:39:29.895 INFO [stdout] e1016f60f6d8032646cacb10c54ea9d6b9175f8f65b78b626fa11bc7d5070dd8
Dec 14 19:39:29.901 INFO running `"docker" "start" "-a" "e1016f60f6d8032646cacb10c54ea9d6b9175f8f65b78b626fa11bc7d5070dd8"`
Dec 14 19:39:30.407 INFO [stderr] usermod: no changes
Dec 14 19:39:30.438 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 14 19:39:30.449 INFO [stderr]      Running /target/debug/deps/skylane-2f98d52866bf4ddd
Dec 14 19:39:30.451 INFO [stdout] 
Dec 14 19:39:30.451 INFO [stdout] running 0 tests
Dec 14 19:39:30.451 INFO [stdout] 
Dec 14 19:39:30.451 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 19:39:30.451 INFO [stdout] 
Dec 14 19:39:30.451 INFO [stderr]    Doc-tests skylane
Dec 14 19:39:31.658 INFO [stdout] 
Dec 14 19:39:31.658 INFO [stdout] running 0 tests
Dec 14 19:39:31.658 INFO [stdout] 
Dec 14 19:39:31.658 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 19:39:31.658 INFO [stdout] 
Dec 14 19:39:31.664 INFO [stderr] su: No module specific data is present
Dec 14 19:39:32.184 INFO running `"docker" "inspect" "e1016f60f6d8032646cacb10c54ea9d6b9175f8f65b78b626fa11bc7d5070dd8"`
Dec 14 19:39:32.357 INFO running `"docker" "rm" "-f" "e1016f60f6d8032646cacb10c54ea9d6b9175f8f65b78b626fa11bc7d5070dd8"`
Dec 14 19:39:32.619 INFO [stdout] e1016f60f6d8032646cacb10c54ea9d6b9175f8f65b78b626fa11bc7d5070dd8