[INFO] fetching crate array_tool 1.0.3...
[INFO] testing array_tool-1.0.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate array_tool 1.0.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate array_tool 1.0.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate array_tool 1.0.3
[INFO] finished tweaking crates.io crate array_tool 1.0.3
[INFO] tweaked toml for crates.io crate array_tool 1.0.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4e1aa59236ce21e3730bb027d44bc852e4295833d261782c8c1cb7b5ca11947
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4e1aa59236ce21e3730bb027d44bc852e4295833d261782c8c1cb7b5ca11947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4e1aa59236ce21e3730bb027d44bc852e4295833d261782c8c1cb7b5ca11947", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e1aa59236ce21e3730bb027d44bc852e4295833d261782c8c1cb7b5ca11947", kill_on_drop: false }`
[INFO] [stdout] f4e1aa59236ce21e3730bb027d44bc852e4295833d261782c8c1cb7b5ca11947
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 752112fb9a255b7fcc12de0fa07d0b7511144acccc71ac675af9df17b898932c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "752112fb9a255b7fcc12de0fa07d0b7511144acccc71ac675af9df17b898932c", kill_on_drop: false }`
[INFO] [stderr]    Compiling array_tool v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `SubstMarks` is imported redundantly
[INFO] [stdout]    --> src/string.rs:289:21
[INFO] [stdout]     |
[INFO] [stdout] 160 | / pub trait SubstMarks {
[INFO] [stdout] 161 | |   /// # Example
[INFO] [stdout] 162 | |   /// ```
[INFO] [stdout] 163 | |   /// use array_tool::string::SubstMarks;
[INFO] [stdout] ...   |
[INFO] [stdout] 172 | |   fn subst_marks(&self, marks: Vec<usize>, chr: &'static str) -> String;
[INFO] [stdout] 173 | | }
[INFO] [stdout]     | |_- the item `SubstMarks` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 289 |                   use string::SubstMarks;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "752112fb9a255b7fcc12de0fa07d0b7511144acccc71ac675af9df17b898932c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752112fb9a255b7fcc12de0fa07d0b7511144acccc71ac675af9df17b898932c", kill_on_drop: false }`
[INFO] [stdout] 752112fb9a255b7fcc12de0fa07d0b7511144acccc71ac675af9df17b898932c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5652ead2f074f65878655832ba3733404847c9846c5d52748e53d40d47fffb48
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5652ead2f074f65878655832ba3733404847c9846c5d52748e53d40d47fffb48", kill_on_drop: false }`
[INFO] [stdout] warning: the item `SubstMarks` is imported redundantly
[INFO] [stdout]    --> src/string.rs:289:21
[INFO] [stdout]     |
[INFO] [stdout] 160 | / pub trait SubstMarks {
[INFO] [stdout] 161 | |   /// # Example
[INFO] [stdout] 162 | |   /// ```
[INFO] [stdout] 163 | |   /// use array_tool::string::SubstMarks;
[INFO] [stdout] ...   |
[INFO] [stdout] 172 | |   fn subst_marks(&self, marks: Vec<usize>, chr: &'static str) -> String;
[INFO] [stdout] 173 | | }
[INFO] [stdout]     | |_- the item `SubstMarks` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 289 |                   use string::SubstMarks;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling array_tool v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `SubstMarks` is imported redundantly
[INFO] [stdout]    --> src/string.rs:289:21
[INFO] [stdout]     |
[INFO] [stdout] 160 | / pub trait SubstMarks {
[INFO] [stdout] 161 | |   /// # Example
[INFO] [stdout] 162 | |   /// ```
[INFO] [stdout] 163 | |   /// use array_tool::string::SubstMarks;
[INFO] [stdout] ...   |
[INFO] [stdout] 172 | |   fn subst_marks(&self, marks: Vec<usize>, chr: &'static str) -> String;
[INFO] [stdout] 173 | | }
[INFO] [stdout]     | |_- the item `SubstMarks` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 289 |                   use string::SubstMarks;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> tests/vec.rs:82:7
[INFO] [stdout]    |
[INFO] [stdout] 82 |   use std::ascii::AsciiExt;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `Command { std: "docker" "inspect" "5652ead2f074f65878655832ba3733404847c9846c5d52748e53d40d47fffb48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5652ead2f074f65878655832ba3733404847c9846c5d52748e53d40d47fffb48", kill_on_drop: false }`
[INFO] [stdout] 5652ead2f074f65878655832ba3733404847c9846c5d52748e53d40d47fffb48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 715a153ebc9b059c2535c8a9e9fa253ae73efbc35047effec5a79411c3e10a6b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "715a153ebc9b059c2535c8a9e9fa253ae73efbc35047effec5a79411c3e10a6b", kill_on_drop: false }`
[INFO] [stderr] warning: the item `SubstMarks` is imported redundantly
[INFO] [stderr]    --> src/string.rs:289:21
[INFO] [stderr]     |
[INFO] [stderr] 160 | / pub trait SubstMarks {
[INFO] [stderr] 161 | |   /// # Example
[INFO] [stderr] 162 | |   /// ```
[INFO] [stderr] 163 | |   /// use array_tool::string::SubstMarks;
[INFO] [stderr] ...   |
[INFO] [stderr] 172 | |   fn subst_marks(&self, marks: Vec<usize>, chr: &'static str) -> String;
[INFO] [stderr] 173 | | }
[INFO] [stderr]     | |_- the item `SubstMarks` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 289 |                   use string::SubstMarks;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the item `SubstMarks` is imported redundantly
[INFO] [stderr]    --> src/string.rs:289:21
[INFO] [stderr]     |
[INFO] [stderr] 160 | / pub trait SubstMarks {
[INFO] [stderr] 161 | |   /// # Example
[INFO] [stderr] 162 | |   /// ```
[INFO] [stderr] 163 | |   /// use array_tool::string::SubstMarks;
[INFO] [stderr] ...   |
[INFO] [stderr] 172 | |   fn subst_marks(&self, marks: Vec<usize>, chr: &'static str) -> String;
[INFO] [stderr] 173 | | }
[INFO] [stderr]     | |_- the item `SubstMarks` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 289 |                   use string::SubstMarks;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> tests/vec.rs:82:7
[INFO] [stderr]    |
[INFO] [stderr] 82 |   use std::ascii::AsciiExt;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/array_tool-a3a3382b05cd9071
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-05bb68c6f994413d
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_implements_uniques ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/string-918807ee6d6d9ca9
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test it_seeks_end_of_whitespace_after_offset ... ok
[INFO] [stdout] test it_iterates_over_every_grapheme_character ... ok
[INFO] [stdout] test it_substitutes_character_at_each_indexed_point ... ok
[INFO] [stdout] test it_justifies_one_line_in_for_string ... ok
[INFO] [stdout] test it_squeezes_characters ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/vec-d31a472a1b81e51e
[INFO] [stdout] test it_word_wraps_for_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test it_answers_about_uniqueness ... ok
[INFO] [stdout] test it_answers_about_uniqueness_via ... ok
[INFO] [stdout] test it_joins ... ok
[INFO] [stdout] test it_multiplies ... ok
[INFO] [stdout] test it_can_return_its_own_unique ... ok
[INFO] [stdout] test it_shifts ... ok
[INFO] [stdout] test it_creates_union ... ok
[INFO] [stdout] test it_handles_empty_shift ... ok
[INFO] [stdout] test it_can_return_its_own_unique_via ... ok
[INFO] [stdout] test it_implements_individual_uniq_on_vec_via ... ok
[INFO] [stdout] test it_implements_individual_uniq_on_vec ... ok
[INFO] [stdout] test it_intersects ... ok
[INFO] [stdout] test it_intersects_if ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests array_tool
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/vec.rs - vec::Intersect::intersect_if (line 205) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/string.rs - string::ToGraphemeBytesIter::grapheme_bytes_iter (line 58) ... ok
[INFO] [stdout] test src/string.rs - string::Squeeze::squeeze (line 81) ... ok
[INFO] [stdout] test src/lib.rs - uniques (line 44) ... ok
[INFO] [stdout] test src/string.rs - string::Justify::justify_line (line 114) ... ok
[INFO] [stdout] test src/string.rs - string::AfterWhitespace::seek_end_of_whitespace (line 206) ... ok
[INFO] [stdout] test src/iter.rs - iter::ZipOpt::zip_option (line 20) ... ok
[INFO] [stdout] test src/string.rs - string::WordWrap::word_wrap (line 243) ... ok
[INFO] [stdout] test src/string.rs - string::SubstMarks::subst_marks (line 162) ... ok
[INFO] [stdout] test src/vec.rs - vec::Join::join (line 241) ... ok
[INFO] [stdout] test src/vec.rs - vec::Intersect::intersect (line 193) ... ok
[INFO] [stdout] test src/vec.rs - vec::Shift::shift (line 159) ... ok
[INFO] [stdout] test src/vec.rs - vec::Uniq::is_unique (line 45) ... ok
[INFO] [stdout] test src/vec.rs - vec::Uniq::is_unique_via (line 94) ... ok
[INFO] [stdout] test src/vec.rs - vec::Shift::unshift (line 170) ... ok
[INFO] [stdout] test src/vec.rs - vec::Times::times (line 269) ... ok
[INFO] [stdout] test src/vec.rs - vec::Uniq::unique (line 29) ... ok
[INFO] [stdout] test src/vec.rs - vec::Union::union (line 298) ... ok
[INFO] [stdout] test src/vec.rs - vec::Uniq::uniq_via (line 62) ... ok
[INFO] [stdout] test src/vec.rs - vec::Uniq::uniq (line 14) ... ok
[INFO] [stdout] test src/vec.rs - vec::Uniq::unique_via (line 78) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "715a153ebc9b059c2535c8a9e9fa253ae73efbc35047effec5a79411c3e10a6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715a153ebc9b059c2535c8a9e9fa253ae73efbc35047effec5a79411c3e10a6b", kill_on_drop: false }`
[INFO] [stdout] 715a153ebc9b059c2535c8a9e9fa253ae73efbc35047effec5a79411c3e10a6b