Dec 15 22:33:08.585 INFO testing an-rope-0.3.1 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 22:33:08.585 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 22:33:08.936 INFO [stdout] 6d71ab424b98241802e0f1965874580ec3429f802cea28e167197b2a0c5e6bb9
Dec 15 22:33:08.941 INFO running `"docker" "start" "-a" "6d71ab424b98241802e0f1965874580ec3429f802cea28e167197b2a0c5e6bb9"`
Dec 15 22:33:09.675 INFO [stderr] usermod: no changes
Dec 15 22:33:09.757 INFO [stderr]    Compiling macro-attr v0.2.0
Dec 15 22:33:10.407 INFO [stderr]    Compiling an-rope v0.3.1 (/source)
Dec 15 22:33:11.367 INFO [stderr] warning: variable does not need to be mutable
Dec 15 22:33:11.367 INFO [stderr]    --> src/lib.rs:762:46
Dec 15 22:33:11.367 INFO [stderr]     |
Dec 15 22:33:11.367 INFO [stderr] 762 |                               .scan(0, move |mut l, i|  {
Dec 15 22:33:11.367 INFO [stderr]     |                                              ----^
Dec 15 22:33:11.367 INFO [stderr]     |                                              |
Dec 15 22:33:11.367 INFO [stderr]     |                                              help: remove this `mut`
Dec 15 22:33:11.367 INFO [stderr]     |
Dec 15 22:33:11.367 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 22:33:11.367 INFO [stderr] 
Dec 15 22:33:11.475 INFO [stderr] warning: method is never used: `nodes`
Dec 15 22:33:11.475 INFO [stderr]    --> src/internals/mod.rs:446:5
Dec 15 22:33:11.475 INFO [stderr]     |
Dec 15 22:33:11.475 INFO [stderr] 446 |     fn nodes(&self) -> Nodes {
Dec 15 22:33:11.475 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:11.475 INFO [stderr]     |
Dec 15 22:33:11.475 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 15 22:33:11.475 INFO [stderr] 
Dec 15 22:33:11.475 INFO [stderr] warning: struct is never constructed: `Nodes`
Dec 15 22:33:11.475 INFO [stderr]    --> src/internals/mod.rs:645:1
Dec 15 22:33:11.475 INFO [stderr]     |
Dec 15 22:33:11.475 INFO [stderr] 645 | struct Nodes<'a>(Vec<&'a Node>);
Dec 15 22:33:11.475 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:11.475 INFO [stderr] 
Dec 15 22:33:12.182 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.48s
Dec 15 22:33:12.189 INFO [stderr] su: No module specific data is present
Dec 15 22:33:12.718 INFO running `"docker" "inspect" "6d71ab424b98241802e0f1965874580ec3429f802cea28e167197b2a0c5e6bb9"`
Dec 15 22:33:12.799 INFO running `"docker" "rm" "-f" "6d71ab424b98241802e0f1965874580ec3429f802cea28e167197b2a0c5e6bb9"`
Dec 15 22:33:12.912 INFO [stdout] 6d71ab424b98241802e0f1965874580ec3429f802cea28e167197b2a0c5e6bb9
Dec 15 22:33:12.914 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 22:33:13.223 INFO [stdout] a15c7c690e5fb021911e90b798521ad992f3fc59bf76c7f63b18749b4d8c7506
Dec 15 22:33:13.225 INFO running `"docker" "start" "-a" "a15c7c690e5fb021911e90b798521ad992f3fc59bf76c7f63b18749b4d8c7506"`
Dec 15 22:33:13.933 INFO [stderr] usermod: no changes
Dec 15 22:33:14.059 INFO [stderr]    Compiling an-rope v0.3.1 (/source)
Dec 15 22:33:16.320 INFO [stderr] warning: unused import: `metric::Line`
Dec 15 22:33:16.320 INFO [stderr]  --> src/test/mod.rs:4:5
Dec 15 22:33:16.320 INFO [stderr]   |
Dec 15 22:33:16.320 INFO [stderr] 4 | use metric::Line;
Dec 15 22:33:16.320 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 15 22:33:16.320 INFO [stderr]   |
Dec 15 22:33:16.320 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 15 22:33:16.320 INFO [stderr] 
Dec 15 22:33:16.320 INFO [stderr] warning: unused import: `metric::Measured`
Dec 15 22:33:16.320 INFO [stderr]  --> src/test/mod.rs:5:5
Dec 15 22:33:16.320 INFO [stderr]   |
Dec 15 22:33:16.320 INFO [stderr] 5 | use metric::Measured;
Dec 15 22:33:16.320 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 15 22:33:16.320 INFO [stderr] 
Dec 15 22:33:16.321 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 15 22:33:16.321 INFO [stderr]   --> src/test/mod.rs:61:18
Dec 15 22:33:16.321 INFO [stderr]    |
Dec 15 22:33:16.321 INFO [stderr] 61 |     r = r.delete((8..12));
Dec 15 22:33:16.321 INFO [stderr]    |                  ^^^^^^^ help: remove these parentheses
Dec 15 22:33:16.321 INFO [stderr]    |
Dec 15 22:33:16.321 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 15 22:33:16.321 INFO [stderr] 
Dec 15 22:33:16.321 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 15 22:33:16.321 INFO [stderr]   --> src/test/mod.rs:68:18
Dec 15 22:33:16.321 INFO [stderr]    |
Dec 15 22:33:16.321 INFO [stderr] 68 |     r = r.delete((0..0));
Dec 15 22:33:16.321 INFO [stderr]    |                  ^^^^^^ help: remove these parentheses
Dec 15 22:33:16.321 INFO [stderr] 
Dec 15 22:33:16.321 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 15 22:33:16.321 INFO [stderr]    --> src/test/mod.rs:117:14
Dec 15 22:33:16.322 INFO [stderr]     |
Dec 15 22:33:16.322 INFO [stderr] 117 |     r.delete((12..8)); // lol, fuck you
Dec 15 22:33:16.322 INFO [stderr]     |              ^^^^^^^ help: remove these parentheses
Dec 15 22:33:16.322 INFO [stderr] 
Dec 15 22:33:16.330 INFO [stderr] warning: unused import: `super::*`
Dec 15 22:33:16.331 INFO [stderr]    --> src/slice.rs:710:9
Dec 15 22:33:16.331 INFO [stderr]     |
Dec 15 22:33:16.331 INFO [stderr] 710 |     use super::*;
Dec 15 22:33:16.331 INFO [stderr]     |         ^^^^^^^^
Dec 15 22:33:16.331 INFO [stderr] 
Dec 15 22:33:17.224 INFO [stderr] warning: unused variable: `left`
Dec 15 22:33:17.224 INFO [stderr]   --> src/internals/test.rs:49:10
Dec 15 22:33:17.224 INFO [stderr]    |
Dec 15 22:33:17.224 INFO [stderr] 49 |     let (left, right) = b.split(Line(1));
Dec 15 22:33:17.224 INFO [stderr]    |          ^^^^ help: consider using `_left` instead
Dec 15 22:33:17.224 INFO [stderr]    |
Dec 15 22:33:17.224 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 15 22:33:17.224 INFO [stderr] 
Dec 15 22:33:17.224 INFO [stderr] warning: unused variable: `right`
Dec 15 22:33:17.224 INFO [stderr]   --> src/internals/test.rs:49:16
Dec 15 22:33:17.224 INFO [stderr]    |
Dec 15 22:33:17.224 INFO [stderr] 49 |     let (left, right) = b.split(Line(1));
Dec 15 22:33:17.224 INFO [stderr]    |                ^^^^^ help: consider using `_right` instead
Dec 15 22:33:17.224 INFO [stderr] 
Dec 15 22:33:17.252 INFO [stderr] warning: variable does not need to be mutable
Dec 15 22:33:17.252 INFO [stderr]    --> src/lib.rs:762:46
Dec 15 22:33:17.252 INFO [stderr]     |
Dec 15 22:33:17.252 INFO [stderr] 762 |                               .scan(0, move |mut l, i|  {
Dec 15 22:33:17.252 INFO [stderr]     |                                              ----^
Dec 15 22:33:17.252 INFO [stderr]     |                                              |
Dec 15 22:33:17.252 INFO [stderr]     |                                              help: remove this `mut`
Dec 15 22:33:17.252 INFO [stderr]     |
Dec 15 22:33:17.252 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 15 22:33:17.252 INFO [stderr] 
Dec 15 22:33:17.276 INFO [stderr] warning: variable does not need to be mutable
Dec 15 22:33:17.276 INFO [stderr]   --> src/test/mod.rs:28:9
Dec 15 22:33:17.276 INFO [stderr]    |
Dec 15 22:33:17.276 INFO [stderr] 28 |     let mut rope = Rope::from("this is\n\
Dec 15 22:33:17.276 INFO [stderr]    |         ----^^^^
Dec 15 22:33:17.276 INFO [stderr]    |         |
Dec 15 22:33:17.276 INFO [stderr]    |         help: remove this `mut`
Dec 15 22:33:17.276 INFO [stderr] 
Dec 15 22:33:17.278 INFO [stderr] warning: variable does not need to be mutable
Dec 15 22:33:17.278 INFO [stderr]   --> src/test/mod.rs:44:9
Dec 15 22:33:17.278 INFO [stderr]    |
Dec 15 22:33:17.278 INFO [stderr] 44 |     let mut rope = Rope::from("this is\n\
Dec 15 22:33:17.278 INFO [stderr]    |         ----^^^^
Dec 15 22:33:17.278 INFO [stderr]    |         |
Dec 15 22:33:17.278 INFO [stderr]    |         help: remove this `mut`
Dec 15 22:33:17.278 INFO [stderr] 
Dec 15 22:33:17.280 INFO [stderr] warning: variable does not need to be mutable
Dec 15 22:33:17.280 INFO [stderr]    --> src/test/mod.rs:116:9
Dec 15 22:33:17.280 INFO [stderr]     |
Dec 15 22:33:17.280 INFO [stderr] 116 |     let mut r = Rope::from("this is not fine");
Dec 15 22:33:17.280 INFO [stderr]     |         ----^
Dec 15 22:33:17.280 INFO [stderr]     |         |
Dec 15 22:33:17.280 INFO [stderr]     |         help: remove this `mut`
Dec 15 22:33:17.280 INFO [stderr] 
Dec 15 22:33:17.327 INFO [stderr] warning: variable does not need to be mutable
Dec 15 22:33:17.327 INFO [stderr]    --> src/test/mod.rs:476:17
Dec 15 22:33:17.327 INFO [stderr]     |
Dec 15 22:33:17.327 INFO [stderr] 476 |             let mut rope = Rope::from(a.clone());
Dec 15 22:33:17.327 INFO [stderr]     |                 ----^^^^
Dec 15 22:33:17.327 INFO [stderr]     |                 |
Dec 15 22:33:17.327 INFO [stderr]     |                 help: remove this `mut`
Dec 15 22:33:17.327 INFO [stderr] 
Dec 15 22:33:17.538 INFO [stderr] warning: function is never used: `line_delete_test_1`
Dec 15 22:33:17.539 INFO [stderr]   --> src/test/mod.rs:26:1
Dec 15 22:33:17.539 INFO [stderr]    |
Dec 15 22:33:17.539 INFO [stderr] 26 | fn line_delete_test_1() {
Dec 15 22:33:17.539 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr]    |
Dec 15 22:33:17.539 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: function is never used: `line_delete_test_2`
Dec 15 22:33:17.539 INFO [stderr]   --> src/test/mod.rs:42:1
Dec 15 22:33:17.539 INFO [stderr]    |
Dec 15 22:33:17.539 INFO [stderr] 42 | fn line_delete_test_2() {
Dec 15 22:33:17.539 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: function is never used: `debug_test_1`
Dec 15 22:33:17.539 INFO [stderr]    --> src/test/mod.rs:125:5
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 125 |     fn debug_test_1() {
Dec 15 22:33:17.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: function is never used: `debug_test_2`
Dec 15 22:33:17.539 INFO [stderr]    --> src/test/mod.rs:131:5
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 131 |     fn debug_test_2() {
Dec 15 22:33:17.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: function is never used: `debug_test_3`
Dec 15 22:33:17.539 INFO [stderr]    --> src/test/mod.rs:137:5
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 137 |     fn debug_test_3() {
Dec 15 22:33:17.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: function is never used: `rope_indexing_is_string_indexing`
Dec 15 22:33:17.539 INFO [stderr]    --> src/test/mod.rs:446:5
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 446 |     fn rope_indexing_is_string_indexing() {
Dec 15 22:33:17.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: function is never used: `rope_insert_char_is_string_insert_char`
Dec 15 22:33:17.539 INFO [stderr]    --> src/test/mod.rs:462:5
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 462 |     fn rope_insert_char_is_string_insert_char() {
Dec 15 22:33:17.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: constant item is never used: `TEST_WORD`
Dec 15 22:33:17.539 INFO [stderr]     --> src/unicode/test/testdata.rs:520:5
Dec 15 22:33:17.539 INFO [stderr]      |
Dec 15 22:33:17.539 INFO [stderr] 520  | /     pub const TEST_WORD: &'static [(&'static str, &'static [&'static str])] = &[
Dec 15 22:33:17.539 INFO [stderr] 521  | |         ("\u{1}\u{1}", &["\u{1}", "\u{1}"]), ("\u{1}\u{308}\u{1}", &["\u{1}\u{308}", "\u{1}"]),
Dec 15 22:33:17.539 INFO [stderr] 522  | |         ("\u{1}\u{d}", &["\u{1}", "\u{d}"]), ("\u{1}\u{308}\u{d}", &["\u{1}\u{308}", "\u{d}"]),
Dec 15 22:33:17.539 INFO [stderr] 523  | |         ("\u{1}\u{a}", &["\u{1}", "\u{a}"]), ("\u{1}\u{308}\u{a}", &["\u{1}\u{308}", "\u{a}"]),
Dec 15 22:33:17.539 INFO [stderr] ...    |
Dec 15 22:33:17.539 INFO [stderr] 2056 | |         "\u{2c}", "\u{2c}", "\u{61}"])
Dec 15 22:33:17.539 INFO [stderr] 2057 | |     ];
Dec 15 22:33:17.539 INFO [stderr]      | |______^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: method is never used: `nodes`
Dec 15 22:33:17.539 INFO [stderr]    --> src/internals/mod.rs:446:5
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 446 |     fn nodes(&self) -> Nodes {
Dec 15 22:33:17.539 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: struct is never constructed: `Nodes`
Dec 15 22:33:17.539 INFO [stderr]    --> src/internals/mod.rs:645:1
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 645 | struct Nodes<'a>(Vec<&'a Node>);
Dec 15 22:33:17.539 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.539 INFO [stderr]   --> src/test/mod.rs:25:1
Dec 15 22:33:17.539 INFO [stderr]    |
Dec 15 22:33:17.539 INFO [stderr] 25 | #[ignore]
Dec 15 22:33:17.539 INFO [stderr]    | ^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr]    |
Dec 15 22:33:17.539 INFO [stderr]    = note: #[warn(unused_attributes)] on by default
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.539 INFO [stderr]   --> src/test/mod.rs:41:1
Dec 15 22:33:17.539 INFO [stderr]    |
Dec 15 22:33:17.539 INFO [stderr] 41 | #[ignore]
Dec 15 22:33:17.539 INFO [stderr]    | ^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.539 INFO [stderr]    --> src/test/mod.rs:114:1
Dec 15 22:33:17.539 INFO [stderr]     |
Dec 15 22:33:17.539 INFO [stderr] 114 | #[should_panic]
Dec 15 22:33:17.539 INFO [stderr]     | ^^^^^^^^^^^^^^^
Dec 15 22:33:17.539 INFO [stderr] 
Dec 15 22:33:17.539 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.539 INFO [stderr]    --> src/test/mod.rs:124:5
Dec 15 22:33:17.540 INFO [stderr]     |
Dec 15 22:33:17.540 INFO [stderr] 124 |     #[ignore]
Dec 15 22:33:17.540 INFO [stderr]     |     ^^^^^^^^^
Dec 15 22:33:17.540 INFO [stderr] 
Dec 15 22:33:17.540 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.540 INFO [stderr]    --> src/test/mod.rs:130:5
Dec 15 22:33:17.540 INFO [stderr]     |
Dec 15 22:33:17.540 INFO [stderr] 130 |     #[ignore]
Dec 15 22:33:17.540 INFO [stderr]     |     ^^^^^^^^^
Dec 15 22:33:17.540 INFO [stderr] 
Dec 15 22:33:17.540 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.540 INFO [stderr]    --> src/test/mod.rs:136:5
Dec 15 22:33:17.540 INFO [stderr]     |
Dec 15 22:33:17.540 INFO [stderr] 136 |     #[ignore]
Dec 15 22:33:17.540 INFO [stderr]     |     ^^^^^^^^^
Dec 15 22:33:17.540 INFO [stderr] 
Dec 15 22:33:17.546 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.547 INFO [stderr]    --> src/test/mod.rs:445:5
Dec 15 22:33:17.547 INFO [stderr]     |
Dec 15 22:33:17.547 INFO [stderr] 445 |     #[ignore]
Dec 15 22:33:17.547 INFO [stderr]     |     ^^^^^^^^^
Dec 15 22:33:17.547 INFO [stderr] 
Dec 15 22:33:17.547 INFO [stderr] warning: unused attribute
Dec 15 22:33:17.547 INFO [stderr]    --> src/test/mod.rs:461:5
Dec 15 22:33:17.547 INFO [stderr]     |
Dec 15 22:33:17.547 INFO [stderr] 461 |     #[ignore]
Dec 15 22:33:17.547 INFO [stderr]     |     ^^^^^^^^^
Dec 15 22:33:17.547 INFO [stderr] 
Dec 15 22:33:17.547 INFO [stderr] warning: module `FromIterator` should have a snake case name such as `from_iterator`
Dec 15 22:33:17.547 INFO [stderr]    --> src/test/mod.rs:614:5
Dec 15 22:33:17.547 INFO [stderr]     |
Dec 15 22:33:17.547 INFO [stderr] 614 | /     mod FromIterator {
Dec 15 22:33:17.547 INFO [stderr] 615 | |         use ::Rope;
Dec 15 22:33:17.547 INFO [stderr] 616 | |         quickcheck! {
Dec 15 22:33:17.547 INFO [stderr] 617 | |             fn prop_strings_concat(v: Vec<String>) -> bool {
Dec 15 22:33:17.547 INFO [stderr] ...   |
Dec 15 22:33:17.547 INFO [stderr] 709 | |
Dec 15 22:33:17.547 INFO [stderr] 710 | |     }
Dec 15 22:33:17.547 INFO [stderr]     | |_____^
Dec 15 22:33:17.547 INFO [stderr]     |
Dec 15 22:33:17.547 INFO [stderr]     = note: #[warn(non_snake_case)] on by default
Dec 15 22:33:17.547 INFO [stderr] 
Dec 15 22:33:20.017 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.06s
Dec 15 22:33:20.027 INFO [stderr] su: No module specific data is present
Dec 15 22:33:21.087 INFO running `"docker" "inspect" "a15c7c690e5fb021911e90b798521ad992f3fc59bf76c7f63b18749b4d8c7506"`
Dec 15 22:33:21.385 INFO running `"docker" "rm" "-f" "a15c7c690e5fb021911e90b798521ad992f3fc59bf76c7f63b18749b4d8c7506"`
Dec 15 22:33:21.626 INFO [stdout] a15c7c690e5fb021911e90b798521ad992f3fc59bf76c7f63b18749b4d8c7506
Dec 15 22:33:21.632 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 22:33:22.123 INFO [stdout] e0742f52805d47cb9faf6735126e3cb2a3e7a65574b1af02c5d355d27b2e9a24
Dec 15 22:33:22.128 INFO running `"docker" "start" "-a" "e0742f52805d47cb9faf6735126e3cb2a3e7a65574b1af02c5d355d27b2e9a24"`
Dec 15 22:33:23.589 INFO [stderr] usermod: no changes
Dec 15 22:33:23.687 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 15 22:33:23.718 INFO [stderr]      Running /target/debug/deps/an_rope-cb11a96e847d9269
Dec 15 22:33:23.725 INFO [stdout] 
Dec 15 22:33:23.725 INFO [stdout] running 51 tests
Dec 15 22:33:23.743 INFO [stdout] test internals::test::line_split_test_1 ... ok
Dec 15 22:33:23.743 INFO [stdout] test internals::test::line_split_test_10 ... ok
Dec 15 22:33:23.743 INFO [stdout] test internals::test::line_split_test_2 ... ok
Dec 15 22:33:23.743 INFO [stdout] test internals::test::line_split_test_5 ... ok
Dec 15 22:33:23.743 INFO [stdout] test internals::test::line_split_test_3 ... ok
Dec 15 22:33:23.743 INFO [stdout] test internals::test::line_split_test_6 ... ok
Dec 15 22:33:23.743 INFO [stdout] test internals::test::line_split_test_7 ... ok
Dec 15 22:33:23.755 INFO [stdout] test internals::test::line_split_test_9 ... ok
Dec 15 22:33:23.755 INFO [stdout] test slice::tests::char_indices ... ok
Dec 15 22:33:23.755 INFO [stdout] test test::append ... ok
Dec 15 22:33:23.755 INFO [stdout] test slice::tests::to ... ok
Dec 15 22:33:23.763 INFO [stdout] test test::delete_test_2 ... ok
Dec 15 22:33:23.763 INFO [stdout] test test::delete_test_1 ... ok
Dec 15 22:33:23.763 INFO [stdout] test test::append_empty_rope ... ok
Dec 15 22:33:23.763 INFO [stdout] test internals::test::line_split_test_8 ... ok
Dec 15 22:33:23.768 INFO [stdout] test test::big_rebalance ... ok
Dec 15 22:33:23.768 INFO [stdout] test test::iterator::FromIterator::char_refs ... ok
Dec 15 22:33:23.775 INFO [stdout] test test::insert_str_test_1 ... ok
Dec 15 22:33:23.787 INFO [stdout] test test::iterator::FromIterator::char_refs_empty ... ok
Dec 15 22:33:23.787 INFO [stdout] test test::insert_char_test_1 ... ok
Dec 15 22:33:23.787 INFO [stdout] test test::insert_rope_test_2 ... ok
Dec 15 22:33:23.795 INFO [stdout] test test::insert_rope_test_1 ... ok
Dec 15 22:33:23.795 INFO [stdout] test test::insert_rope_balance_test ... ok
Dec 15 22:33:23.795 INFO [stdout] test test::iterator::FromIterator::chars ... ok
Dec 15 22:33:23.801 INFO [stdout] test test::iterator::FromIterator::chars_empty ... ok
Dec 15 22:33:23.801 INFO [stdout] test test::iterator::FromIterator::ropes_empty ... ok
Dec 15 22:33:23.801 INFO [stdout] test test::iterator::FromIterator::str_slice_empty ... ok
Dec 15 22:33:23.801 INFO [stdout] test test::iterator::FromIterator::ropes ... ok
Dec 15 22:33:23.801 INFO [stdout] test test::iterator::FromIterator::str_slice ... ok
Dec 15 22:33:23.805 INFO [stdout] test test::merge_rebalance_test ... ok
Dec 15 22:33:23.805 INFO [stdout] test test::iterator::FromIterator::strings ... ok
Dec 15 22:33:23.805 INFO [stdout] test test::iterator::FromIterator::strings_empty ... ok
Dec 15 22:33:23.811 INFO [stdout] test test::prepend ... ok
Dec 15 22:33:23.811 INFO [stdout] test test::prepend_empty_rope ... ok
Dec 15 22:33:23.815 INFO [stdout] test test::rebalance_test_1 ... ok
Dec 15 22:33:23.831 INFO [stdout] test test::rebalance_test_2 ... ok
Dec 15 22:33:23.851 INFO [stdout] test test::properties::rope_append_is_string_push_str ... ok
Dec 15 22:33:23.875 INFO [stdout] test test::properties::rope_concat_is_string_concat ... ok
Dec 15 22:33:23.883 INFO [stdout] test test::iterator::FromIterator::prop_chars_concat ... ok
Dec 15 22:33:23.895 INFO [stdout] test test::rope_char_indices ... ok
Dec 15 22:33:23.895 INFO [stdout] test test::repeated_concat_right_rebalance ... ok
Dec 15 22:33:23.895 INFO [stdout] test test::rope_lines_iter ... ok
Dec 15 22:33:23.895 INFO [stdout] test test::repeated_concat_left_rebalance ... ok
Dec 15 22:33:23.907 INFO [stdout] test unicode::test::graphemes_iter ... ok
Dec 15 22:33:23.915 INFO [stdout] test test::rope_lines_iter_split_on_node ... ok
Dec 15 22:33:23.915 INFO [stdout] test unicode::test::unicode_words ... ok
Dec 15 22:33:23.916 INFO [stdout] test unicode::test::test_graphemes ... ok
Dec 15 22:33:23.927 INFO [stdout] test internals::test::line_split_test_4 ... ok
Dec 15 22:33:23.927 INFO [stdout] test test::delete_test_7 ... ok
Dec 15 22:33:24.419 INFO [stdout] test test::iterator::FromIterator::prop_strings_concat ... ok
Dec 15 22:33:24.519 INFO [stderr]    Doc-tests an-rope
Dec 15 22:33:24.519 INFO [stdout] test test::iterator::FromIterator::prop_ropes_concat ... ok
Dec 15 22:33:24.519 INFO [stdout] 
Dec 15 22:33:24.519 INFO [stdout] test result: ok. 51 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 22:33:24.519 INFO [stdout] 
Dec 15 22:33:25.775 INFO [stdout] 
Dec 15 22:33:25.775 INFO [stdout] running 47 tests
Dec 15 22:33:29.293 INFO [stdout] test src/lib.rs - Rope::add (line 1056) ... ok
Dec 15 22:33:30.987 INFO [stdout] test src/lib.rs - Rope::append (line 647) ... ok
Dec 15 22:33:32.776 INFO [stdout] test src/lib.rs - Rope::eq (line 1016) ... ok
Dec 15 22:33:33.055 INFO [stdout] test src/lib.rs - &'a Rope::add (line 1091) ... ok
Dec 15 22:33:33.407 INFO [stdout] test src/lib.rs - Rope::add (line 1072) ... ok
Dec 15 22:33:33.672 INFO [stdout] test src/lib.rs - Rope::add (line 1110) ... ok
Dec 15 22:33:34.672 INFO [stdout] test src/lib.rs - &'a Rope::add (line 1041) ... ok
Dec 15 22:33:35.482 INFO [stdout] test src/lib.rs - Rope::eq (line 1020) ... ok
Dec 15 22:33:35.619 INFO [stdout] test src/lib.rs - Rope::eq (line 1012) ... ok
Dec 15 22:33:39.223 INFO [stdout] test src/lib.rs - Rope::eq (line 963) ... ok
Dec 15 22:33:41.015 INFO [stdout] test src/lib.rs - Rope::eq (line 959) ... ok
Dec 15 22:33:42.155 INFO [stdout] test src/lib.rs - Rope::eq (line 989) ... ok
Dec 15 22:33:42.198 INFO [stdout] test src/lib.rs - Rope::eq (line 967) ... ok
Dec 15 22:33:43.339 INFO [stdout] test src/lib.rs - Rope::from_utf8 (line 262) ... ok
Dec 15 22:33:43.374 INFO [stdout] test src/lib.rs - Rope::eq (line 993) ... ok
Dec 15 22:33:43.631 INFO [stdout] test src/lib.rs - Rope::from_utf8 (line 276) ... ok
Dec 15 22:33:43.847 INFO [stdout] test src/lib.rs - Rope::eq (line 985) ... ok
Dec 15 22:33:48.387 INFO [stdout] test src/lib.rs - Rope::grapheme_indices (line 861) ... ok
Dec 15 22:33:49.121 INFO [stdout] test src/lib.rs - Rope::insert (line 433) ... ok
Dec 15 22:33:50.053 INFO [stdout] test src/lib.rs - Rope::insert_rope (line 539) ... ok
Dec 15 22:33:50.183 INFO [stdout] test src/lib.rs - Rope::from_utf8_unchecked (line 315) ... ok
Dec 15 22:33:50.751 INFO [stdout] test src/lib.rs - Rope::insert (line 423) ... ok
Dec 15 22:33:51.958 INFO [stdout] test src/lib.rs - Rope::index (line 1128) ... ok
Dec 15 22:33:52.319 INFO [stdout] test src/lib.rs - Rope::insert (line 413) ... ok
Dec 15 22:33:53.247 INFO [stdout] test src/lib.rs - Rope::insert_rope (line 529) ... ok
Dec 15 22:33:59.071 INFO [stdout] test src/lib.rs - Rope::insert_str (line 609) ... ok
Dec 15 22:33:59.943 INFO [stdout] test src/lib.rs - Rope::insert_rope (line 549) ... ok
Dec 15 22:34:01.163 INFO [stdout] test src/lib.rs - Rope::insert_str (line 619) ... ok
Dec 15 22:34:01.941 INFO [stdout] test src/lib.rs - Rope::insert_str (line 600) ... ok
Dec 15 22:34:02.592 INFO [stdout] test src/lib.rs - Rope::is_empty (line 382) ... ok
Dec 15 22:34:02.971 INFO [stdout] test src/lib.rs - Rope::is_empty (line 390) ... ok
Dec 15 22:34:04.031 INFO [stdout] test src/lib.rs - Rope::is_empty (line 376) ... ok
Dec 15 22:34:04.869 INFO [stdout] test src/lib.rs - Rope::len (line 348) ... ok
Dec 15 22:34:11.907 INFO [stdout] test src/lib.rs - Rope::len (line 354) ... ok
Dec 15 22:34:12.352 INFO [stdout] test src/lib.rs - Rope::len (line 363) ... ok
Dec 15 22:34:13.335 INFO [stdout] test src/lib.rs - Rope::new (line 335) ... ok
Dec 15 22:34:13.335 INFO [stdout] test src/metric.rs - metric (line 36) ... ignored
Dec 15 22:34:14.351 INFO [stdout] test src/lib.rs - Rope::split (line 703) ... ok
Dec 15 22:34:15.172 INFO [stdout] test src/lib.rs - Rope::prepend (line 666) ... ok
Dec 15 22:34:15.187 INFO [stdout] test src/lib.rs - Rope::prepend (line 674) ... ok
Dec 15 22:34:15.968 INFO [stdout] test src/lib.rs - Rope::prepend (line 682) ... ok
Dec 15 22:34:17.433 INFO [stdout] test src/lib.rs - Rope::split_word_bound_indices (line 881) ... ok
Dec 15 22:34:21.844 INFO [stdout] test src/slice.rs - slice::RopeSlice<'a>::is_empty (line 576) ... ok
Dec 15 22:34:22.143 INFO [stdout] test src/metric.rs - metric (line 15) ... ok
Dec 15 22:34:22.541 INFO [stdout] test src/metric.rs - metric (line 26) ... ok
Dec 15 22:34:23.178 INFO [stdout] test src/slice.rs - slice::RopeSlice<'a>::is_empty (line 586) ... ok
Dec 15 22:34:23.474 INFO [stdout] test src/slice.rs - slice::RopeSlice<'a>::is_empty (line 594) ... ok
Dec 15 22:34:23.475 INFO [stdout] 
Dec 15 22:34:23.475 INFO [stdout] test result: ok. 46 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
Dec 15 22:34:23.475 INFO [stdout] 
Dec 15 22:34:23.521 INFO [stderr] su: No module specific data is present
Dec 15 22:34:24.659 INFO running `"docker" "inspect" "e0742f52805d47cb9faf6735126e3cb2a3e7a65574b1af02c5d355d27b2e9a24"`
Dec 15 22:34:24.991 INFO running `"docker" "rm" "-f" "e0742f52805d47cb9faf6735126e3cb2a3e7a65574b1af02c5d355d27b2e9a24"`
Dec 15 22:34:25.227 INFO [stdout] e0742f52805d47cb9faf6735126e3cb2a3e7a65574b1af02c5d355d27b2e9a24