Dec 15 05:23:30.984 INFO testing mai-0.1.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 05:23:30.984 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 05:23:31.491 INFO [stdout] 4d4e52854cc6c4dce8f455ad786be0508d3efeeafa8af63a12eae3083915b3d2
Dec 15 05:23:31.494 INFO running `"docker" "start" "-a" "4d4e52854cc6c4dce8f455ad786be0508d3efeeafa8af63a12eae3083915b3d2"`
Dec 15 05:23:33.523 INFO [stderr] usermod: no changes
Dec 15 05:23:33.611 INFO [stderr]    Compiling lifeguard v0.5.2
Dec 15 05:23:34.279 INFO [stderr]    Compiling mai v0.1.0 (/source)
Dec 15 05:23:36.354 INFO [stderr] warning: unused import: `Evented`
Dec 15 05:23:36.354 INFO [stderr]  --> src/protocol_engine.rs:1:11
Dec 15 05:23:36.354 INFO [stderr]   |
Dec 15 05:23:36.354 INFO [stderr] 1 | use mio::{Evented, EventSet, PollOpt, Token};
Dec 15 05:23:36.354 INFO [stderr]   |           ^^^^^^^
Dec 15 05:23:36.354 INFO [stderr]   |
Dec 15 05:23:36.354 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 05:23:36.354 INFO [stderr] 
Dec 15 05:23:36.354 INFO [stderr] warning: unused import: `Recycleable`
Dec 15 05:23:36.354 INFO [stderr]  --> src/protocol_engine.rs:5:23
Dec 15 05:23:36.354 INFO [stderr]   |
Dec 15 05:23:36.354 INFO [stderr] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Dec 15 05:23:36.354 INFO [stderr]   |                       ^^^^^^^^^^^
Dec 15 05:23:36.354 INFO [stderr] 
Dec 15 05:23:36.354 INFO [stderr] warning: unused import: `Read`
Dec 15 05:23:36.354 INFO [stderr]  --> src/protocol_engine.rs:8:21
Dec 15 05:23:36.354 INFO [stderr]   |
Dec 15 05:23:36.354 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 15 05:23:36.354 INFO [stderr]   |                     ^^^^
Dec 15 05:23:36.354 INFO [stderr] 
Dec 15 05:23:36.354 INFO [stderr] warning: unused import: `Write`
Dec 15 05:23:36.354 INFO [stderr]  --> src/protocol_engine.rs:8:27
Dec 15 05:23:36.354 INFO [stderr]   |
Dec 15 05:23:36.354 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 15 05:23:36.354 INFO [stderr]   |                           ^^^^^
Dec 15 05:23:36.354 INFO [stderr] 
Dec 15 05:23:36.423 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:36.423 INFO [stderr]    --> src/evented_frame_stream.rs:215:9
Dec 15 05:23:36.423 INFO [stderr]     |
Dec 15 05:23:36.423 INFO [stderr] 215 |     let mut outbox = self.outbox(outbox_pool);
Dec 15 05:23:36.423 INFO [stderr]     |         ----^^^^^^
Dec 15 05:23:36.423 INFO [stderr]     |         |
Dec 15 05:23:36.423 INFO [stderr]     |         help: remove this `mut`
Dec 15 05:23:36.423 INFO [stderr]     |
Dec 15 05:23:36.423 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 05:23:36.423 INFO [stderr] 
Dec 15 05:23:36.435 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:36.435 INFO [stderr]    --> src/protocol_engine.rs:131:12
Dec 15 05:23:36.435 INFO [stderr]     |
Dec 15 05:23:36.435 INFO [stderr] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Dec 15 05:23:36.435 INFO [stderr]     |            ----^^^^^^^^^^^^^^
Dec 15 05:23:36.435 INFO [stderr]     |            |
Dec 15 05:23:36.435 INFO [stderr]     |            help: remove this `mut`
Dec 15 05:23:36.435 INFO [stderr] 
Dec 15 05:23:36.435 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:36.435 INFO [stderr]    --> src/protocol_engine.rs:133:22
Dec 15 05:23:36.435 INFO [stderr]     |
Dec 15 05:23:36.435 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 15 05:23:36.435 INFO [stderr]     |                      ----^^^^^^^
Dec 15 05:23:36.435 INFO [stderr]     |                      |
Dec 15 05:23:36.435 INFO [stderr]     |                      help: remove this `mut`
Dec 15 05:23:36.435 INFO [stderr] 
Dec 15 05:23:36.435 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:36.435 INFO [stderr]    --> src/protocol_engine.rs:133:13
Dec 15 05:23:36.435 INFO [stderr]     |
Dec 15 05:23:36.435 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 15 05:23:36.435 INFO [stderr]     |             ----^^^
Dec 15 05:23:36.435 INFO [stderr]     |             |
Dec 15 05:23:36.435 INFO [stderr]     |             help: remove this `mut`
Dec 15 05:23:36.435 INFO [stderr] 
Dec 15 05:23:36.483 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:36.483 INFO [stderr]    --> src/protocol_engine.rs:531:26
Dec 15 05:23:36.483 INFO [stderr]     |
Dec 15 05:23:36.483 INFO [stderr] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Dec 15 05:23:36.483 INFO [stderr]     |                          ----^^^^^^^^^^^^
Dec 15 05:23:36.483 INFO [stderr]     |                          |
Dec 15 05:23:36.483 INFO [stderr]     |                          help: remove this `mut`
Dec 15 05:23:36.483 INFO [stderr] 
Dec 15 05:23:36.915 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
Dec 15 05:23:36.923 INFO [stderr] su: No module specific data is present
Dec 15 05:23:38.014 INFO running `"docker" "inspect" "4d4e52854cc6c4dce8f455ad786be0508d3efeeafa8af63a12eae3083915b3d2"`
Dec 15 05:23:38.317 INFO running `"docker" "rm" "-f" "4d4e52854cc6c4dce8f455ad786be0508d3efeeafa8af63a12eae3083915b3d2"`
Dec 15 05:23:38.562 INFO [stdout] 4d4e52854cc6c4dce8f455ad786be0508d3efeeafa8af63a12eae3083915b3d2
Dec 15 05:23:38.571 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 05:23:38.975 INFO [stdout] 778fd6a8992a3aaafdad79cfcd4f2cc0f0ae2bb139358cc706cc96330300a129
Dec 15 05:23:38.980 INFO running `"docker" "start" "-a" "778fd6a8992a3aaafdad79cfcd4f2cc0f0ae2bb139358cc706cc96330300a129"`
Dec 15 05:23:39.977 INFO [stderr] usermod: no changes
Dec 15 05:23:40.087 INFO [stderr]    Compiling mai v0.1.0 (/source)
Dec 15 05:23:42.639 INFO [stderr] warning: unused import: `Evented`
Dec 15 05:23:42.639 INFO [stderr]  --> src/protocol_engine.rs:1:11
Dec 15 05:23:42.639 INFO [stderr]   |
Dec 15 05:23:42.639 INFO [stderr] 1 | use mio::{Evented, EventSet, PollOpt, Token};
Dec 15 05:23:42.639 INFO [stderr]   |           ^^^^^^^
Dec 15 05:23:42.639 INFO [stderr]   |
Dec 15 05:23:42.639 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 05:23:42.639 INFO [stderr] 
Dec 15 05:23:42.639 INFO [stderr] warning: unused import: `Recycleable`
Dec 15 05:23:42.639 INFO [stderr]  --> src/protocol_engine.rs:5:23
Dec 15 05:23:42.639 INFO [stderr]   |
Dec 15 05:23:42.639 INFO [stderr] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Dec 15 05:23:42.639 INFO [stderr]   |                       ^^^^^^^^^^^
Dec 15 05:23:42.639 INFO [stderr] 
Dec 15 05:23:42.639 INFO [stderr] warning: unused import: `Read`
Dec 15 05:23:42.639 INFO [stderr]  --> src/protocol_engine.rs:8:21
Dec 15 05:23:42.639 INFO [stderr]   |
Dec 15 05:23:42.639 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 15 05:23:42.639 INFO [stderr]   |                     ^^^^
Dec 15 05:23:42.639 INFO [stderr] 
Dec 15 05:23:42.639 INFO [stderr] warning: unused import: `Write`
Dec 15 05:23:42.639 INFO [stderr]  --> src/protocol_engine.rs:8:27
Dec 15 05:23:42.639 INFO [stderr]   |
Dec 15 05:23:42.639 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 15 05:23:42.639 INFO [stderr]   |                           ^^^^^
Dec 15 05:23:42.639 INFO [stderr] 
Dec 15 05:23:42.713 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:42.713 INFO [stderr]    --> src/evented_frame_stream.rs:215:9
Dec 15 05:23:42.713 INFO [stderr]     |
Dec 15 05:23:42.713 INFO [stderr] 215 |     let mut outbox = self.outbox(outbox_pool);
Dec 15 05:23:42.713 INFO [stderr]     |         ----^^^^^^
Dec 15 05:23:42.713 INFO [stderr]     |         |
Dec 15 05:23:42.713 INFO [stderr]     |         help: remove this `mut`
Dec 15 05:23:42.713 INFO [stderr]     |
Dec 15 05:23:42.713 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 05:23:42.713 INFO [stderr] 
Dec 15 05:23:42.739 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:42.739 INFO [stderr]    --> src/protocol_engine.rs:131:12
Dec 15 05:23:42.739 INFO [stderr]     |
Dec 15 05:23:42.739 INFO [stderr] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Dec 15 05:23:42.739 INFO [stderr]     |            ----^^^^^^^^^^^^^^
Dec 15 05:23:42.739 INFO [stderr]     |            |
Dec 15 05:23:42.739 INFO [stderr]     |            help: remove this `mut`
Dec 15 05:23:42.739 INFO [stderr] 
Dec 15 05:23:42.739 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:42.739 INFO [stderr]    --> src/protocol_engine.rs:133:22
Dec 15 05:23:42.739 INFO [stderr]     |
Dec 15 05:23:42.739 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 15 05:23:42.739 INFO [stderr]     |                      ----^^^^^^^
Dec 15 05:23:42.739 INFO [stderr]     |                      |
Dec 15 05:23:42.739 INFO [stderr]     |                      help: remove this `mut`
Dec 15 05:23:42.739 INFO [stderr] 
Dec 15 05:23:42.739 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:42.739 INFO [stderr]    --> src/protocol_engine.rs:133:13
Dec 15 05:23:42.739 INFO [stderr]     |
Dec 15 05:23:42.739 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 15 05:23:42.739 INFO [stderr]     |             ----^^^
Dec 15 05:23:42.739 INFO [stderr]     |             |
Dec 15 05:23:42.739 INFO [stderr]     |             help: remove this `mut`
Dec 15 05:23:42.739 INFO [stderr] 
Dec 15 05:23:42.817 INFO [stderr] warning: variable does not need to be mutable
Dec 15 05:23:42.817 INFO [stderr]    --> src/protocol_engine.rs:531:26
Dec 15 05:23:42.817 INFO [stderr]     |
Dec 15 05:23:42.817 INFO [stderr] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Dec 15 05:23:42.817 INFO [stderr]     |                          ----^^^^^^^^^^^^
Dec 15 05:23:42.817 INFO [stderr]     |                          |
Dec 15 05:23:42.817 INFO [stderr]     |                          help: remove this `mut`
Dec 15 05:23:42.831 INFO [stderr] 
Dec 15 05:23:43.704 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
Dec 15 05:23:43.709 INFO [stderr] su: No module specific data is present
Dec 15 05:23:44.350 INFO running `"docker" "inspect" "778fd6a8992a3aaafdad79cfcd4f2cc0f0ae2bb139358cc706cc96330300a129"`
Dec 15 05:23:44.529 INFO running `"docker" "rm" "-f" "778fd6a8992a3aaafdad79cfcd4f2cc0f0ae2bb139358cc706cc96330300a129"`
Dec 15 05:23:44.776 INFO [stdout] 778fd6a8992a3aaafdad79cfcd4f2cc0f0ae2bb139358cc706cc96330300a129
Dec 15 05:23:44.783 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 05:23:45.195 INFO [stdout] bcde7c2703db32f6a97ca0736c9288afd936e9e3d7dfe7c2e7a6216357f8c274
Dec 15 05:23:45.197 INFO running `"docker" "start" "-a" "bcde7c2703db32f6a97ca0736c9288afd936e9e3d7dfe7c2e7a6216357f8c274"`
Dec 15 05:23:46.171 INFO [stderr] usermod: no changes
Dec 15 05:23:46.273 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
Dec 15 05:23:46.273 INFO [stderr]      Running /target/debug/deps/mai-c409ccf3e51541c9
Dec 15 05:23:46.291 INFO [stderr]      Running /target/debug/deps/lib-63d3c661a65cbc9f
Dec 15 05:23:46.291 INFO [stdout] 
Dec 15 05:23:46.291 INFO [stdout] running 0 tests
Dec 15 05:23:46.291 INFO [stdout] 
Dec 15 05:23:46.291 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 05:23:46.291 INFO [stdout] 
Dec 15 05:23:46.296 INFO [stdout] 
Dec 15 05:23:46.296 INFO [stdout] running 3 tests
Dec 15 05:23:46.296 INFO [stdout] test tests::test_restack ... ok
Dec 15 05:23:46.303 INFO [stdout] test tests::test_restack_everything_consumed ... ok
Dec 15 05:23:46.303 INFO [stdout] test tests::test_restack_nothing_consumed ... ok
Dec 15 05:23:46.303 INFO [stdout] 
Dec 15 05:23:46.303 INFO [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 05:23:46.303 INFO [stdout] 
Dec 15 05:23:46.303 INFO [stderr]    Doc-tests mai
Dec 15 05:23:48.416 INFO [stdout] 
Dec 15 05:23:48.416 INFO [stdout] running 0 tests
Dec 15 05:23:48.416 INFO [stdout] 
Dec 15 05:23:48.416 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 05:23:48.416 INFO [stdout] 
Dec 15 05:23:48.423 INFO [stderr] su: No module specific data is present
Dec 15 05:23:48.736 INFO running `"docker" "inspect" "bcde7c2703db32f6a97ca0736c9288afd936e9e3d7dfe7c2e7a6216357f8c274"`
Dec 15 05:23:48.825 INFO running `"docker" "rm" "-f" "bcde7c2703db32f6a97ca0736c9288afd936e9e3d7dfe7c2e7a6216357f8c274"`
Dec 15 05:23:48.919 INFO [stdout] bcde7c2703db32f6a97ca0736c9288afd936e9e3d7dfe7c2e7a6216357f8c274