Nov 18 16:00:27.061 INFO testing disjoint-set-0.0.2 against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 18 16:00:27.066 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 18 16:00:27.510 INFO [stdout] 90a398c4d1e0d05b17517e0239488681527b1a98f0fbd056c01586a878d30520
Nov 18 16:00:27.512 INFO running `"docker" "start" "-a" "90a398c4d1e0d05b17517e0239488681527b1a98f0fbd056c01586a878d30520"`
Nov 18 16:00:28.028 INFO [stderr] usermod: no changes
Nov 18 16:00:28.091 INFO [stderr]    Compiling disjoint-set v0.0.2 (/source)
Nov 18 16:00:28.530 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 18 16:00:28.530 INFO [stderr]  --> src/lib.rs:3:5
Nov 18 16:00:28.530 INFO [stderr]   |
Nov 18 16:00:28.530 INFO [stderr] 3 | use std::rc::Rc;
Nov 18 16:00:28.530 INFO [stderr]   |     ^^^^^^^^^^^
Nov 18 16:00:28.530 INFO [stderr]   |
Nov 18 16:00:28.530 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 18 16:00:28.530 INFO [stderr] 
Nov 18 16:00:28.546 INFO [stderr] warning: unused variable: `p`
Nov 18 16:00:28.547 INFO [stderr]   --> src/lib.rs:37:18
Nov 18 16:00:28.547 INFO [stderr]    |
Nov 18 16:00:28.547 INFO [stderr] 37 |             Some(p) => return,
Nov 18 16:00:28.547 INFO [stderr]    |                  ^ help: consider using `_p` instead
Nov 18 16:00:28.547 INFO [stderr]    |
Nov 18 16:00:28.547 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 18 16:00:28.547 INFO [stderr] 
Nov 18 16:00:28.547 INFO [stderr] warning: variable does not need to be mutable
Nov 18 16:00:28.547 INFO [stderr]   --> src/lib.rs:35:13
Nov 18 16:00:28.547 INFO [stderr]    |
Nov 18 16:00:28.547 INFO [stderr] 35 |         let mut len = &mut self.set_size;
Nov 18 16:00:28.547 INFO [stderr]    |             ----^^^
Nov 18 16:00:28.547 INFO [stderr]    |             |
Nov 18 16:00:28.547 INFO [stderr]    |             help: remove this `mut`
Nov 18 16:00:28.547 INFO [stderr]    |
Nov 18 16:00:28.547 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 16:00:28.547 INFO [stderr] 
Nov 18 16:00:28.547 INFO [stderr] warning: variable does not need to be mutable
Nov 18 16:00:28.547 INFO [stderr]   --> src/lib.rs:53:13
Nov 18 16:00:28.547 INFO [stderr]    |
Nov 18 16:00:28.547 INFO [stderr] 53 |         let mut pos: usize;
Nov 18 16:00:28.547 INFO [stderr]    |             ----^^^
Nov 18 16:00:28.547 INFO [stderr]    |             |
Nov 18 16:00:28.547 INFO [stderr]    |             help: remove this `mut`
Nov 18 16:00:28.547 INFO [stderr] 
Nov 18 16:00:28.547 INFO [stderr] warning: variant is never constructed: `Root`
Nov 18 16:00:28.547 INFO [stderr]  --> src/lib.rs:7:5
Nov 18 16:00:28.547 INFO [stderr]   |
Nov 18 16:00:28.547 INFO [stderr] 7 |     Root(ValueType, u32),
Nov 18 16:00:28.547 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 18 16:00:28.547 INFO [stderr]   |
Nov 18 16:00:28.547 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 18 16:00:28.547 INFO [stderr] 
Nov 18 16:00:28.547 INFO [stderr] warning: variant is never constructed: `Link`
Nov 18 16:00:28.547 INFO [stderr]  --> src/lib.rs:8:5
Nov 18 16:00:28.547 INFO [stderr]   |
Nov 18 16:00:28.547 INFO [stderr] 8 |     Link(Box<SetItem<ValueType>>)
Nov 18 16:00:28.547 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 18 16:00:28.547 INFO [stderr] 
Nov 18 16:00:28.587 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
Nov 18 16:00:28.587 INFO [stderr] su: No module specific data is present
Nov 18 16:00:29.067 INFO running `"docker" "inspect" "90a398c4d1e0d05b17517e0239488681527b1a98f0fbd056c01586a878d30520"`
Nov 18 16:00:29.330 INFO running `"docker" "rm" "-f" "90a398c4d1e0d05b17517e0239488681527b1a98f0fbd056c01586a878d30520"`
Nov 18 16:00:29.571 INFO [stdout] 90a398c4d1e0d05b17517e0239488681527b1a98f0fbd056c01586a878d30520
Nov 18 16:00:29.578 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 18 16:00:29.952 INFO [stdout] 837fae3c05c26f02b3b08f858d0cbbc752427e7bfaa861b767456470710d1981
Nov 18 16:00:29.959 INFO running `"docker" "start" "-a" "837fae3c05c26f02b3b08f858d0cbbc752427e7bfaa861b767456470710d1981"`
Nov 18 16:00:31.261 INFO [stderr] usermod: no changes
Nov 18 16:00:31.327 INFO [stderr]    Compiling disjoint-set v0.0.2 (/source)
Nov 18 16:00:32.047 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 18 16:00:32.047 INFO [stderr]  --> src/lib.rs:3:5
Nov 18 16:00:32.047 INFO [stderr]   |
Nov 18 16:00:32.047 INFO [stderr] 3 | use std::rc::Rc;
Nov 18 16:00:32.047 INFO [stderr]   |     ^^^^^^^^^^^
Nov 18 16:00:32.047 INFO [stderr]   |
Nov 18 16:00:32.047 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 18 16:00:32.047 INFO [stderr] 
Nov 18 16:00:32.087 INFO [stderr] warning: unused variable: `p`
Nov 18 16:00:32.087 INFO [stderr]   --> src/lib.rs:37:18
Nov 18 16:00:32.087 INFO [stderr]    |
Nov 18 16:00:32.087 INFO [stderr] 37 |             Some(p) => return,
Nov 18 16:00:32.087 INFO [stderr]    |                  ^ help: consider using `_p` instead
Nov 18 16:00:32.087 INFO [stderr]    |
Nov 18 16:00:32.087 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 18 16:00:32.087 INFO [stderr] 
Nov 18 16:00:32.095 INFO [stderr] warning: variable does not need to be mutable
Nov 18 16:00:32.095 INFO [stderr]   --> src/lib.rs:35:13
Nov 18 16:00:32.095 INFO [stderr]    |
Nov 18 16:00:32.095 INFO [stderr] 35 |         let mut len = &mut self.set_size;
Nov 18 16:00:32.095 INFO [stderr]    |             ----^^^
Nov 18 16:00:32.095 INFO [stderr]    |             |
Nov 18 16:00:32.095 INFO [stderr]    |             help: remove this `mut`
Nov 18 16:00:32.095 INFO [stderr]    |
Nov 18 16:00:32.095 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 16:00:32.095 INFO [stderr] 
Nov 18 16:00:32.095 INFO [stderr] warning: variable does not need to be mutable
Nov 18 16:00:32.095 INFO [stderr]   --> src/lib.rs:53:13
Nov 18 16:00:32.095 INFO [stderr]    |
Nov 18 16:00:32.095 INFO [stderr] 53 |         let mut pos: usize;
Nov 18 16:00:32.095 INFO [stderr]    |             ----^^^
Nov 18 16:00:32.095 INFO [stderr]    |             |
Nov 18 16:00:32.095 INFO [stderr]    |             help: remove this `mut`
Nov 18 16:00:32.095 INFO [stderr] 
Nov 18 16:00:32.103 INFO [stderr] warning: variant is never constructed: `Root`
Nov 18 16:00:32.103 INFO [stderr]  --> src/lib.rs:7:5
Nov 18 16:00:32.103 INFO [stderr]   |
Nov 18 16:00:32.103 INFO [stderr] 7 |     Root(ValueType, u32),
Nov 18 16:00:32.103 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 18 16:00:32.103 INFO [stderr]   |
Nov 18 16:00:32.103 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 18 16:00:32.103 INFO [stderr] 
Nov 18 16:00:32.103 INFO [stderr] warning: variant is never constructed: `Link`
Nov 18 16:00:32.103 INFO [stderr]  --> src/lib.rs:8:5
Nov 18 16:00:32.103 INFO [stderr]   |
Nov 18 16:00:32.103 INFO [stderr] 8 |     Link(Box<SetItem<ValueType>>)
Nov 18 16:00:32.103 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 18 16:00:32.103 INFO [stderr] 
Nov 18 16:00:32.119 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 18 16:00:32.119 INFO [stderr]    --> src/lib.rs:106:5
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr] 106 |     ds.union(1, 2);
Nov 18 16:00:32.119 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 18 16:00:32.119 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 16:00:32.119 INFO [stderr] 
Nov 18 16:00:32.119 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 18 16:00:32.119 INFO [stderr]    --> src/lib.rs:107:5
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr] 107 |     ds.union(2, 3);
Nov 18 16:00:32.119 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 16:00:32.119 INFO [stderr] 
Nov 18 16:00:32.119 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 18 16:00:32.119 INFO [stderr]    --> src/lib.rs:118:5
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr] 118 |     ds.union(-1, 4);
Nov 18 16:00:32.119 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 16:00:32.119 INFO [stderr] 
Nov 18 16:00:32.119 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 18 16:00:32.119 INFO [stderr]    --> src/lib.rs:119:5
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr] 119 |     ds.union(2, 4);
Nov 18 16:00:32.119 INFO [stderr]     |     ^^^^^^^^^^^^^^^
Nov 18 16:00:32.119 INFO [stderr]     |
Nov 18 16:00:32.119 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 18 16:00:32.119 INFO [stderr] 
Nov 18 16:00:32.851 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
Nov 18 16:00:32.851 INFO [stderr] su: No module specific data is present
Nov 18 16:00:33.517 INFO running `"docker" "inspect" "837fae3c05c26f02b3b08f858d0cbbc752427e7bfaa861b767456470710d1981"`
Nov 18 16:00:33.853 INFO running `"docker" "rm" "-f" "837fae3c05c26f02b3b08f858d0cbbc752427e7bfaa861b767456470710d1981"`
Nov 18 16:00:34.203 INFO [stdout] 837fae3c05c26f02b3b08f858d0cbbc752427e7bfaa861b767456470710d1981
Nov 18 16:00:34.206 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 18 16:00:34.691 INFO [stdout] 5440fea034aff83693cf563e818b41963020a2d12bd6f44e1dcc87d058a6fca5
Nov 18 16:00:34.697 INFO running `"docker" "start" "-a" "5440fea034aff83693cf563e818b41963020a2d12bd6f44e1dcc87d058a6fca5"`
Nov 18 16:00:36.219 INFO [stderr] usermod: no changes
Nov 18 16:00:36.327 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Nov 18 16:00:36.343 INFO [stderr]      Running /target/debug/deps/disjoint_set-ed7ad359a4be3f4e
Nov 18 16:00:36.344 INFO [stdout] 
Nov 18 16:00:36.344 INFO [stdout] running 1 test
Nov 18 16:00:36.344 INFO [stdout] test it_works ... ok
Nov 18 16:00:36.344 INFO [stdout] 
Nov 18 16:00:36.344 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 18 16:00:36.344 INFO [stdout] 
Nov 18 16:00:36.355 INFO [stderr]    Doc-tests disjoint-set
Nov 18 16:00:37.320 INFO [stdout] 
Nov 18 16:00:37.321 INFO [stdout] running 0 tests
Nov 18 16:00:37.321 INFO [stdout] 
Nov 18 16:00:37.321 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 18 16:00:37.321 INFO [stdout] 
Nov 18 16:00:37.326 INFO [stderr] su: No module specific data is present
Nov 18 16:00:38.341 INFO running `"docker" "inspect" "5440fea034aff83693cf563e818b41963020a2d12bd6f44e1dcc87d058a6fca5"`
Nov 18 16:00:38.635 INFO running `"docker" "rm" "-f" "5440fea034aff83693cf563e818b41963020a2d12bd6f44e1dcc87d058a6fca5"`
Nov 18 16:00:38.955 INFO [stdout] 5440fea034aff83693cf563e818b41963020a2d12bd6f44e1dcc87d058a6fca5