Dec 03 13:58:50.395 INFO testing disjoint-set-0.0.2 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 13:58:50.396 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 13:58:50.765 INFO [stdout] 6bdd8a7d0531f75d6be58ed8be90c9af56f69e5942ab524e92cd7a2c11e78116
Dec 03 13:58:50.767 INFO running `"docker" "start" "-a" "6bdd8a7d0531f75d6be58ed8be90c9af56f69e5942ab524e92cd7a2c11e78116"`
Dec 03 13:58:51.782 INFO [stderr] usermod: no changes
Dec 03 13:58:51.827 INFO [stderr]    Compiling disjoint-set v0.0.2 (/source)
Dec 03 13:58:52.406 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 03 13:58:52.406 INFO [stderr]  --> src/lib.rs:3:5
Dec 03 13:58:52.406 INFO [stderr]   |
Dec 03 13:58:52.406 INFO [stderr] 3 | use std::rc::Rc;
Dec 03 13:58:52.406 INFO [stderr]   |     ^^^^^^^^^^^
Dec 03 13:58:52.406 INFO [stderr]   |
Dec 03 13:58:52.406 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 03 13:58:52.406 INFO [stderr] 
Dec 03 13:58:52.439 INFO [stderr] warning: unused variable: `p`
Dec 03 13:58:52.439 INFO [stderr]   --> src/lib.rs:37:18
Dec 03 13:58:52.439 INFO [stderr]    |
Dec 03 13:58:52.439 INFO [stderr] 37 |             Some(p) => return,
Dec 03 13:58:52.439 INFO [stderr]    |                  ^ help: consider using `_p` instead
Dec 03 13:58:52.439 INFO [stderr]    |
Dec 03 13:58:52.439 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 03 13:58:52.439 INFO [stderr] 
Dec 03 13:58:52.439 INFO [stderr] warning: variable does not need to be mutable
Dec 03 13:58:52.439 INFO [stderr]   --> src/lib.rs:35:13
Dec 03 13:58:52.439 INFO [stderr]    |
Dec 03 13:58:52.439 INFO [stderr] 35 |         let mut len = &mut self.set_size;
Dec 03 13:58:52.439 INFO [stderr]    |             ----^^^
Dec 03 13:58:52.439 INFO [stderr]    |             |
Dec 03 13:58:52.439 INFO [stderr]    |             help: remove this `mut`
Dec 03 13:58:52.440 INFO [stderr]    |
Dec 03 13:58:52.440 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 03 13:58:52.440 INFO [stderr] 
Dec 03 13:58:52.440 INFO [stderr] warning: variable does not need to be mutable
Dec 03 13:58:52.440 INFO [stderr]   --> src/lib.rs:53:13
Dec 03 13:58:52.440 INFO [stderr]    |
Dec 03 13:58:52.440 INFO [stderr] 53 |         let mut pos: usize;
Dec 03 13:58:52.440 INFO [stderr]    |             ----^^^
Dec 03 13:58:52.440 INFO [stderr]    |             |
Dec 03 13:58:52.440 INFO [stderr]    |             help: remove this `mut`
Dec 03 13:58:52.440 INFO [stderr] 
Dec 03 13:58:52.440 INFO [stderr] warning: variant is never constructed: `Root`
Dec 03 13:58:52.440 INFO [stderr]  --> src/lib.rs:7:5
Dec 03 13:58:52.440 INFO [stderr]   |
Dec 03 13:58:52.440 INFO [stderr] 7 |     Root(ValueType, u32),
Dec 03 13:58:52.440 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 03 13:58:52.440 INFO [stderr]   |
Dec 03 13:58:52.440 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 03 13:58:52.440 INFO [stderr] 
Dec 03 13:58:52.440 INFO [stderr] warning: variant is never constructed: `Link`
Dec 03 13:58:52.440 INFO [stderr]  --> src/lib.rs:8:5
Dec 03 13:58:52.440 INFO [stderr]   |
Dec 03 13:58:52.440 INFO [stderr] 8 |     Link(Box<SetItem<ValueType>>)
Dec 03 13:58:52.440 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 13:58:52.440 INFO [stderr] 
Dec 03 13:58:52.471 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Dec 03 13:58:52.476 INFO [stderr] su: No module specific data is present
Dec 03 13:58:52.891 INFO running `"docker" "inspect" "6bdd8a7d0531f75d6be58ed8be90c9af56f69e5942ab524e92cd7a2c11e78116"`
Dec 03 13:58:53.037 INFO running `"docker" "rm" "-f" "6bdd8a7d0531f75d6be58ed8be90c9af56f69e5942ab524e92cd7a2c11e78116"`
Dec 03 13:58:53.141 INFO [stdout] 6bdd8a7d0531f75d6be58ed8be90c9af56f69e5942ab524e92cd7a2c11e78116
Dec 03 13:58:53.144 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 13:58:53.368 INFO [stdout] 45fb2ffa6167dc6f70035ea0947d112d37a8572c18702a962330d0aeabf32114
Dec 03 13:58:53.370 INFO running `"docker" "start" "-a" "45fb2ffa6167dc6f70035ea0947d112d37a8572c18702a962330d0aeabf32114"`
Dec 03 13:58:54.627 INFO [stderr] usermod: no changes
Dec 03 13:58:54.675 INFO [stderr]    Compiling disjoint-set v0.0.2 (/source)
Dec 03 13:58:55.467 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 03 13:58:55.467 INFO [stderr]  --> src/lib.rs:3:5
Dec 03 13:58:55.467 INFO [stderr]   |
Dec 03 13:58:55.467 INFO [stderr] 3 | use std::rc::Rc;
Dec 03 13:58:55.467 INFO [stderr]   |     ^^^^^^^^^^^
Dec 03 13:58:55.467 INFO [stderr]   |
Dec 03 13:58:55.467 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 03 13:58:55.467 INFO [stderr] 
Dec 03 13:58:55.515 INFO [stderr] warning: unused variable: `p`
Dec 03 13:58:55.515 INFO [stderr]   --> src/lib.rs:37:18
Dec 03 13:58:55.516 INFO [stderr]    |
Dec 03 13:58:55.516 INFO [stderr] 37 |             Some(p) => return,
Dec 03 13:58:55.516 INFO [stderr]    |                  ^ help: consider using `_p` instead
Dec 03 13:58:55.517 INFO [stderr]    |
Dec 03 13:58:55.521 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 03 13:58:55.521 INFO [stderr] 
Dec 03 13:58:55.521 INFO [stderr] warning: variable does not need to be mutable
Dec 03 13:58:55.522 INFO [stderr]   --> src/lib.rs:35:13
Dec 03 13:58:55.522 INFO [stderr]    |
Dec 03 13:58:55.522 INFO [stderr] 35 |         let mut len = &mut self.set_size;
Dec 03 13:58:55.522 INFO [stderr]    |             ----^^^
Dec 03 13:58:55.522 INFO [stderr]    |             |
Dec 03 13:58:55.523 INFO [stderr]    |             help: remove this `mut`
Dec 03 13:58:55.523 INFO [stderr]    |
Dec 03 13:58:55.523 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 03 13:58:55.523 INFO [stderr] 
Dec 03 13:58:55.524 INFO [stderr] warning: variable does not need to be mutable
Dec 03 13:58:55.524 INFO [stderr]   --> src/lib.rs:53:13
Dec 03 13:58:55.526 INFO [stderr]    |
Dec 03 13:58:55.526 INFO [stderr] 53 |         let mut pos: usize;
Dec 03 13:58:55.526 INFO [stderr]    |             ----^^^
Dec 03 13:58:55.526 INFO [stderr]    |             |
Dec 03 13:58:55.526 INFO [stderr]    |             help: remove this `mut`
Dec 03 13:58:55.526 INFO [stderr] 
Dec 03 13:58:55.535 INFO [stderr] warning: variant is never constructed: `Root`
Dec 03 13:58:55.535 INFO [stderr]  --> src/lib.rs:7:5
Dec 03 13:58:55.535 INFO [stderr]   |
Dec 03 13:58:55.535 INFO [stderr] 7 |     Root(ValueType, u32),
Dec 03 13:58:55.535 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 03 13:58:55.535 INFO [stderr]   |
Dec 03 13:58:55.535 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 03 13:58:55.535 INFO [stderr] 
Dec 03 13:58:55.535 INFO [stderr] warning: variant is never constructed: `Link`
Dec 03 13:58:55.535 INFO [stderr]  --> src/lib.rs:8:5
Dec 03 13:58:55.535 INFO [stderr]   |
Dec 03 13:58:55.535 INFO [stderr] 8 |     Link(Box<SetItem<ValueType>>)
Dec 03 13:58:55.535 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 13:58:55.535 INFO [stderr] 
Dec 03 13:58:55.555 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 03 13:58:55.555 INFO [stderr]    --> src/lib.rs:106:5
Dec 03 13:58:55.555 INFO [stderr]     |
Dec 03 13:58:55.555 INFO [stderr] 106 |     ds.union(1, 2);
Dec 03 13:58:55.555 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 03 13:58:55.555 INFO [stderr]     |
Dec 03 13:58:55.555 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 03 13:58:55.555 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 03 13:58:55.555 INFO [stderr] 
Dec 03 13:58:55.555 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 03 13:58:55.555 INFO [stderr]    --> src/lib.rs:107:5
Dec 03 13:58:55.555 INFO [stderr]     |
Dec 03 13:58:55.555 INFO [stderr] 107 |     ds.union(2, 3);
Dec 03 13:58:55.555 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 03 13:58:55.556 INFO [stderr]     |
Dec 03 13:58:55.556 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 03 13:58:55.556 INFO [stderr] 
Dec 03 13:58:55.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 03 13:58:55.556 INFO [stderr]    --> src/lib.rs:118:5
Dec 03 13:58:55.556 INFO [stderr]     |
Dec 03 13:58:55.556 INFO [stderr] 118 |     ds.union(-1, 4);
Dec 03 13:58:55.556 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 03 13:58:55.556 INFO [stderr]     |
Dec 03 13:58:55.556 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 03 13:58:55.556 INFO [stderr] 
Dec 03 13:58:55.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 03 13:58:55.556 INFO [stderr]    --> src/lib.rs:119:5
Dec 03 13:58:55.556 INFO [stderr]     |
Dec 03 13:58:55.556 INFO [stderr] 119 |     ds.union(2, 4);
Dec 03 13:58:55.556 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 03 13:58:55.556 INFO [stderr]     |
Dec 03 13:58:55.556 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 03 13:58:55.556 INFO [stderr] 
Dec 03 13:58:56.444 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
Dec 03 13:58:56.453 INFO [stderr] su: No module specific data is present
Dec 03 13:58:56.977 INFO running `"docker" "inspect" "45fb2ffa6167dc6f70035ea0947d112d37a8572c18702a962330d0aeabf32114"`
Dec 03 13:58:57.190 INFO running `"docker" "rm" "-f" "45fb2ffa6167dc6f70035ea0947d112d37a8572c18702a962330d0aeabf32114"`
Dec 03 13:58:57.473 INFO [stdout] 45fb2ffa6167dc6f70035ea0947d112d37a8572c18702a962330d0aeabf32114
Dec 03 13:58:57.477 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 13:58:57.859 INFO [stdout] 93a0370e98a68bdd521d6a89edd83429eb102281a7e49896264d188a78f498c7
Dec 03 13:58:57.861 INFO running `"docker" "start" "-a" "93a0370e98a68bdd521d6a89edd83429eb102281a7e49896264d188a78f498c7"`
Dec 03 13:58:58.838 INFO [stderr] usermod: no changes
Dec 03 13:58:58.899 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 03 13:58:58.900 INFO [stderr]      Running /target/debug/deps/disjoint_set-93b3e136f7841b36
Dec 03 13:58:58.915 INFO [stdout] 
Dec 03 13:58:58.915 INFO [stdout] running 1 test
Dec 03 13:58:58.921 INFO [stdout] test it_works ... ok
Dec 03 13:58:58.921 INFO [stdout] 
Dec 03 13:58:58.921 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 03 13:58:58.921 INFO [stdout] 
Dec 03 13:58:58.923 INFO [stderr]    Doc-tests disjoint-set
Dec 03 13:59:00.035 INFO [stdout] 
Dec 03 13:59:00.035 INFO [stdout] running 0 tests
Dec 03 13:59:00.035 INFO [stdout] 
Dec 03 13:59:00.035 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 03 13:59:00.035 INFO [stdout] 
Dec 03 13:59:00.041 INFO [stderr] su: No module specific data is present
Dec 03 13:59:00.569 INFO running `"docker" "inspect" "93a0370e98a68bdd521d6a89edd83429eb102281a7e49896264d188a78f498c7"`
Dec 03 13:59:00.835 INFO running `"docker" "rm" "-f" "93a0370e98a68bdd521d6a89edd83429eb102281a7e49896264d188a78f498c7"`
Dec 03 13:59:01.097 INFO [stdout] 93a0370e98a68bdd521d6a89edd83429eb102281a7e49896264d188a78f498c7
