Dec 15 16:53:45.063 INFO testing disjoint-set-0.0.2 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 16:53:45.063 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 15 16:53:45.598 INFO [stdout] 4e5762ce559181940f096dc625df7f8352fbb2b84e476b851382ba2a8d3b73d1
Dec 15 16:53:45.601 INFO running `"docker" "start" "-a" "4e5762ce559181940f096dc625df7f8352fbb2b84e476b851382ba2a8d3b73d1"`
Dec 15 16:53:46.678 INFO [stderr] usermod: no changes
Dec 15 16:53:46.731 INFO [stderr]    Compiling disjoint-set v0.0.2 (/source)
Dec 15 16:53:47.343 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 15 16:53:47.343 INFO [stderr]  --> src/lib.rs:3:5
Dec 15 16:53:47.343 INFO [stderr]   |
Dec 15 16:53:47.343 INFO [stderr] 3 | use std::rc::Rc;
Dec 15 16:53:47.343 INFO [stderr]   |     ^^^^^^^^^^^
Dec 15 16:53:47.343 INFO [stderr]   |
Dec 15 16:53:47.343 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 16:53:47.343 INFO [stderr] 
Dec 15 16:53:47.368 INFO [stderr] warning: unused variable: `p`
Dec 15 16:53:47.368 INFO [stderr]   --> src/lib.rs:37:18
Dec 15 16:53:47.368 INFO [stderr]    |
Dec 15 16:53:47.368 INFO [stderr] 37 |             Some(p) => return,
Dec 15 16:53:47.368 INFO [stderr]    |                  ^ help: consider using `_p` instead
Dec 15 16:53:47.368 INFO [stderr]    |
Dec 15 16:53:47.368 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 15 16:53:47.368 INFO [stderr] 
Dec 15 16:53:47.370 INFO [stderr] warning: variable does not need to be mutable
Dec 15 16:53:47.370 INFO [stderr]   --> src/lib.rs:35:13
Dec 15 16:53:47.370 INFO [stderr]    |
Dec 15 16:53:47.370 INFO [stderr] 35 |         let mut len = &mut self.set_size;
Dec 15 16:53:47.370 INFO [stderr]    |             ----^^^
Dec 15 16:53:47.370 INFO [stderr]    |             |
Dec 15 16:53:47.370 INFO [stderr]    |             help: remove this `mut`
Dec 15 16:53:47.370 INFO [stderr]    |
Dec 15 16:53:47.370 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 15 16:53:47.370 INFO [stderr] 
Dec 15 16:53:47.371 INFO [stderr] warning: variable does not need to be mutable
Dec 15 16:53:47.371 INFO [stderr]   --> src/lib.rs:53:13
Dec 15 16:53:47.371 INFO [stderr]    |
Dec 15 16:53:47.371 INFO [stderr] 53 |         let mut pos: usize;
Dec 15 16:53:47.371 INFO [stderr]    |             ----^^^
Dec 15 16:53:47.371 INFO [stderr]    |             |
Dec 15 16:53:47.371 INFO [stderr]    |             help: remove this `mut`
Dec 15 16:53:47.371 INFO [stderr] 
Dec 15 16:53:47.372 INFO [stderr] warning: variant is never constructed: `Root`
Dec 15 16:53:47.372 INFO [stderr]  --> src/lib.rs:7:5
Dec 15 16:53:47.372 INFO [stderr]   |
Dec 15 16:53:47.372 INFO [stderr] 7 |     Root(ValueType, u32),
Dec 15 16:53:47.372 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 16:53:47.372 INFO [stderr]   |
Dec 15 16:53:47.373 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 15 16:53:47.373 INFO [stderr] 
Dec 15 16:53:47.373 INFO [stderr] warning: variant is never constructed: `Link`
Dec 15 16:53:47.373 INFO [stderr]  --> src/lib.rs:8:5
Dec 15 16:53:47.373 INFO [stderr]   |
Dec 15 16:53:47.373 INFO [stderr] 8 |     Link(Box<SetItem<ValueType>>)
Dec 15 16:53:47.373 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 16:53:47.373 INFO [stderr] 
Dec 15 16:53:47.396 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 15 16:53:47.398 INFO [stderr] su: No module specific data is present
Dec 15 16:53:47.867 INFO running `"docker" "inspect" "4e5762ce559181940f096dc625df7f8352fbb2b84e476b851382ba2a8d3b73d1"`
Dec 15 16:53:48.058 INFO running `"docker" "rm" "-f" "4e5762ce559181940f096dc625df7f8352fbb2b84e476b851382ba2a8d3b73d1"`
Dec 15 16:53:48.218 INFO [stdout] 4e5762ce559181940f096dc625df7f8352fbb2b84e476b851382ba2a8d3b73d1
Dec 15 16:53:48.221 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 15 16:53:48.571 INFO [stdout] 0367cde30a699b3a76dcd964238604a57c9605c90a0891406c95158acbdb99bc
Dec 15 16:53:48.575 INFO running `"docker" "start" "-a" "0367cde30a699b3a76dcd964238604a57c9605c90a0891406c95158acbdb99bc"`
Dec 15 16:53:49.143 INFO [stderr] usermod: no changes
Dec 15 16:53:49.181 INFO [stderr]    Compiling disjoint-set v0.0.2 (/source)
Dec 15 16:53:49.887 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 15 16:53:49.887 INFO [stderr]  --> src/lib.rs:3:5
Dec 15 16:53:49.887 INFO [stderr]   |
Dec 15 16:53:49.887 INFO [stderr] 3 | use std::rc::Rc;
Dec 15 16:53:49.887 INFO [stderr]   |     ^^^^^^^^^^^
Dec 15 16:53:49.887 INFO [stderr]   |
Dec 15 16:53:49.887 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 16:53:49.887 INFO [stderr] 
Dec 15 16:53:49.935 INFO [stderr] warning: unused variable: `p`
Dec 15 16:53:49.935 INFO [stderr]   --> src/lib.rs:37:18
Dec 15 16:53:49.935 INFO [stderr]    |
Dec 15 16:53:49.935 INFO [stderr] 37 |             Some(p) => return,
Dec 15 16:53:49.935 INFO [stderr]    |                  ^ help: consider using `_p` instead
Dec 15 16:53:49.935 INFO [stderr]    |
Dec 15 16:53:49.935 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 15 16:53:49.935 INFO [stderr] 
Dec 15 16:53:49.935 INFO [stderr] warning: variable does not need to be mutable
Dec 15 16:53:49.935 INFO [stderr]   --> src/lib.rs:35:13
Dec 15 16:53:49.935 INFO [stderr]    |
Dec 15 16:53:49.935 INFO [stderr] 35 |         let mut len = &mut self.set_size;
Dec 15 16:53:49.935 INFO [stderr]    |             ----^^^
Dec 15 16:53:49.935 INFO [stderr]    |             |
Dec 15 16:53:49.935 INFO [stderr]    |             help: remove this `mut`
Dec 15 16:53:49.935 INFO [stderr]    |
Dec 15 16:53:49.935 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 15 16:53:49.935 INFO [stderr] 
Dec 15 16:53:49.935 INFO [stderr] warning: variable does not need to be mutable
Dec 15 16:53:49.935 INFO [stderr]   --> src/lib.rs:53:13
Dec 15 16:53:49.935 INFO [stderr]    |
Dec 15 16:53:49.935 INFO [stderr] 53 |         let mut pos: usize;
Dec 15 16:53:49.935 INFO [stderr]    |             ----^^^
Dec 15 16:53:49.935 INFO [stderr]    |             |
Dec 15 16:53:49.935 INFO [stderr]    |             help: remove this `mut`
Dec 15 16:53:49.935 INFO [stderr] 
Dec 15 16:53:49.943 INFO [stderr] warning: variant is never constructed: `Root`
Dec 15 16:53:49.943 INFO [stderr]  --> src/lib.rs:7:5
Dec 15 16:53:49.943 INFO [stderr]   |
Dec 15 16:53:49.943 INFO [stderr] 7 |     Root(ValueType, u32),
Dec 15 16:53:49.943 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 15 16:53:49.943 INFO [stderr]   |
Dec 15 16:53:49.943 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 15 16:53:49.943 INFO [stderr] 
Dec 15 16:53:49.943 INFO [stderr] warning: variant is never constructed: `Link`
Dec 15 16:53:49.943 INFO [stderr]  --> src/lib.rs:8:5
Dec 15 16:53:49.943 INFO [stderr]   |
Dec 15 16:53:49.943 INFO [stderr] 8 |     Link(Box<SetItem<ValueType>>)
Dec 15 16:53:49.943 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 16:53:49.943 INFO [stderr] 
Dec 15 16:53:49.957 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 16:53:49.957 INFO [stderr]    --> src/lib.rs:106:5
Dec 15 16:53:49.957 INFO [stderr]     |
Dec 15 16:53:49.957 INFO [stderr] 106 |     ds.union(1, 2);
Dec 15 16:53:49.957 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 15 16:53:49.957 INFO [stderr]     |
Dec 15 16:53:49.957 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 15 16:53:49.957 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 16:53:49.957 INFO [stderr] 
Dec 15 16:53:49.957 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 16:53:49.957 INFO [stderr]    --> src/lib.rs:107:5
Dec 15 16:53:49.957 INFO [stderr]     |
Dec 15 16:53:49.957 INFO [stderr] 107 |     ds.union(2, 3);
Dec 15 16:53:49.957 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 15 16:53:49.957 INFO [stderr]     |
Dec 15 16:53:49.957 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 16:53:49.957 INFO [stderr] 
Dec 15 16:53:49.957 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 16:53:49.957 INFO [stderr]    --> src/lib.rs:118:5
Dec 15 16:53:49.957 INFO [stderr]     |
Dec 15 16:53:49.957 INFO [stderr] 118 |     ds.union(-1, 4);
Dec 15 16:53:49.957 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 15 16:53:49.957 INFO [stderr]     |
Dec 15 16:53:49.957 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 16:53:49.957 INFO [stderr] 
Dec 15 16:53:49.957 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 16:53:49.957 INFO [stderr]    --> src/lib.rs:119:5
Dec 15 16:53:49.957 INFO [stderr]     |
Dec 15 16:53:49.957 INFO [stderr] 119 |     ds.union(2, 4);
Dec 15 16:53:49.957 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Dec 15 16:53:49.958 INFO [stderr]     |
Dec 15 16:53:49.958 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 16:53:49.958 INFO [stderr] 
Dec 15 16:53:50.483 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Dec 15 16:53:50.485 INFO [stderr] su: No module specific data is present
Dec 15 16:53:50.984 INFO running `"docker" "inspect" "0367cde30a699b3a76dcd964238604a57c9605c90a0891406c95158acbdb99bc"`
Dec 15 16:53:51.335 INFO running `"docker" "rm" "-f" "0367cde30a699b3a76dcd964238604a57c9605c90a0891406c95158acbdb99bc"`
Dec 15 16:53:51.639 INFO [stdout] 0367cde30a699b3a76dcd964238604a57c9605c90a0891406c95158acbdb99bc
Dec 15 16:53:51.641 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 15 16:53:51.992 INFO [stdout] 617b95505fe727082ff239360ea6a58ad0646f56f0fa5f9cb328736b30499962
Dec 15 16:53:51.999 INFO running `"docker" "start" "-a" "617b95505fe727082ff239360ea6a58ad0646f56f0fa5f9cb328736b30499962"`
Dec 15 16:53:53.286 INFO [stderr] usermod: no changes
Dec 15 16:53:53.327 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 15 16:53:53.347 INFO [stderr]      Running /target/debug/deps/disjoint_set-dc16846cb520c1c4
Dec 15 16:53:53.347 INFO [stderr]    Doc-tests disjoint-set
Dec 15 16:53:53.347 INFO [stdout] 
Dec 15 16:53:53.347 INFO [stdout] running 1 test
Dec 15 16:53:53.347 INFO [stdout] test it_works ... ok
Dec 15 16:53:53.347 INFO [stdout] 
Dec 15 16:53:53.347 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 16:53:53.347 INFO [stdout] 
Dec 15 16:53:54.479 INFO [stdout] 
Dec 15 16:53:54.479 INFO [stdout] running 0 tests
Dec 15 16:53:54.479 INFO [stdout] 
Dec 15 16:53:54.479 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 16:53:54.479 INFO [stdout] 
Dec 15 16:53:54.482 INFO [stderr] su: No module specific data is present
Dec 15 16:53:55.123 INFO running `"docker" "inspect" "617b95505fe727082ff239360ea6a58ad0646f56f0fa5f9cb328736b30499962"`
Dec 15 16:53:55.467 INFO running `"docker" "rm" "-f" "617b95505fe727082ff239360ea6a58ad0646f56f0fa5f9cb328736b30499962"`
Dec 15 16:53:55.786 INFO [stdout] 617b95505fe727082ff239360ea6a58ad0646f56f0fa5f9cb328736b30499962