[INFO] fetching crate backtracking_iterator 0.4.4...
[INFO] testing backtracking_iterator-0.4.4 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate backtracking_iterator 0.4.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate backtracking_iterator 0.4.4 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backtracking_iterator 0.4.4
[INFO] finished tweaking crates.io crate backtracking_iterator 0.4.4
[INFO] tweaked toml for crates.io crate backtracking_iterator 0.4.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matches v0.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64dece8f7d380d583d06a0d920b40d60541697c40656b084cd46c296263f3eb6
[INFO] running `Command { std: "docker" "start" "-a" "64dece8f7d380d583d06a0d920b40d60541697c40656b084cd46c296263f3eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64dece8f7d380d583d06a0d920b40d60541697c40656b084cd46c296263f3eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64dece8f7d380d583d06a0d920b40d60541697c40656b084cd46c296263f3eb6", kill_on_drop: false }`
[INFO] [stdout] 64dece8f7d380d583d06a0d920b40d60541697c40656b084cd46c296263f3eb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88d5ce400d3c3c5a63be9b9a91ff42e5895671c60875e49e3c864549720dc251
[INFO] running `Command { std: "docker" "start" "-a" "88d5ce400d3c3c5a63be9b9a91ff42e5895671c60875e49e3c864549720dc251", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtracking_iterator v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Backtracking` is imported redundantly
[INFO] [stdout]   --> src/copying.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Progressing` is imported redundantly
[INFO] [stdout]   --> src/copying.rs:38:31
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Backtracking` is imported redundantly
[INFO] [stdout]   --> src/referencing.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Progressing` is imported redundantly
[INFO] [stdout]   --> src/referencing.rs:57:31
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BacktrackingState`
[INFO] [stdout]   --> src/concurrent.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use super::{BacktrackingState, BacktrackingIterator};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stdout]   --> src/concurrent.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stdout]    --> src/concurrent.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "88d5ce400d3c3c5a63be9b9a91ff42e5895671c60875e49e3c864549720dc251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d5ce400d3c3c5a63be9b9a91ff42e5895671c60875e49e3c864549720dc251", kill_on_drop: false }`
[INFO] [stdout] 88d5ce400d3c3c5a63be9b9a91ff42e5895671c60875e49e3c864549720dc251
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38b7c3c34d973cea7bd6a15fbf4e5fb2124c9b8ff3f25545c7a28a3129d68339
[INFO] running `Command { std: "docker" "start" "-a" "38b7c3c34d973cea7bd6a15fbf4e5fb2124c9b8ff3f25545c7a28a3129d68339", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stdout] warning: the item `Backtracking` is imported redundantly
[INFO] [stdout]   --> src/copying.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Progressing` is imported redundantly
[INFO] [stdout]   --> src/copying.rs:38:31
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Backtracking` is imported redundantly
[INFO] [stdout]   --> src/referencing.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Progressing` is imported redundantly
[INFO] [stdout]   --> src/referencing.rs:57:31
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BacktrackingState`
[INFO] [stdout]   --> src/concurrent.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use super::{BacktrackingState, BacktrackingIterator};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stdout]   --> src/concurrent.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stdout]    --> src/concurrent.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling backtracking_iterator v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Backtracking` is imported redundantly
[INFO] [stdout]   --> src/copying.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Progressing` is imported redundantly
[INFO] [stdout]   --> src/copying.rs:38:31
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Backtracking` is imported redundantly
[INFO] [stdout]   --> src/referencing.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Progressing` is imported redundantly
[INFO] [stdout]   --> src/referencing.rs:57:31
[INFO] [stdout]    |
[INFO] [stdout] 23 | use super::BacktrackingState::*;
[INFO] [stdout]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BacktrackingState`
[INFO] [stdout]   --> src/concurrent.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 | use super::{BacktrackingState, BacktrackingIterator};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stdout]   --> src/concurrent.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]    |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stdout]    --> src/concurrent.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/concurrent.rs:209:26
[INFO] [stdout]     |
[INFO] [stdout] 209 |     struct Uncloneable {};
[INFO] [stdout]     |                          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "38b7c3c34d973cea7bd6a15fbf4e5fb2124c9b8ff3f25545c7a28a3129d68339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38b7c3c34d973cea7bd6a15fbf4e5fb2124c9b8ff3f25545c7a28a3129d68339", kill_on_drop: false }`
[INFO] [stdout] 38b7c3c34d973cea7bd6a15fbf4e5fb2124c9b8ff3f25545c7a28a3129d68339
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c517131f4f2511e9b5a95f043dd0d8eb12ac9ee39abbb18e0009495996fec4e
[INFO] running `Command { std: "docker" "start" "-a" "0c517131f4f2511e9b5a95f043dd0d8eb12ac9ee39abbb18e0009495996fec4e", kill_on_drop: false }`
[INFO] [stderr] warning: the item `Backtracking` is imported redundantly
[INFO] [stderr]   --> src/copying.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 23 | use super::BacktrackingState::*;
[INFO] [stderr]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Progressing` is imported redundantly
[INFO] [stderr]   --> src/copying.rs:38:31
[INFO] [stderr]    |
[INFO] [stderr] 23 | use super::BacktrackingState::*;
[INFO] [stderr]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 38 |     use crate::{Backtracking, Progressing};
[INFO] [stderr]    |                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Backtracking` is imported redundantly
[INFO] [stderr]   --> src/referencing.rs:57:17
[INFO] [stderr]    |
[INFO] [stderr] 23 | use super::BacktrackingState::*;
[INFO] [stderr]    |     --------------------------- the item `Backtracking` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Progressing` is imported redundantly
[INFO] [stderr]   --> src/referencing.rs:57:31
[INFO] [stderr]    |
[INFO] [stderr] 23 | use super::BacktrackingState::*;
[INFO] [stderr]    |     --------------------------- the item `Progressing` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 57 |     use crate::{Backtracking, Progressing};
[INFO] [stderr]    |                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BacktrackingState`
[INFO] [stderr]   --> src/concurrent.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 | use super::{BacktrackingState, BacktrackingIterator};
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stderr]   --> src/concurrent.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |     use crate::{Backtracking, Progressing};
[INFO] [stderr]    |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Backtracking`, `Progressing`
[INFO] [stderr]    --> src/concurrent.rs:140:17
[INFO] [stderr]     |
[INFO] [stderr] 140 |     use crate::{Backtracking, Progressing};
[INFO] [stderr]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `backtracking_iterator` (lib) generated 7 warnings (run `cargo fix --lib -p backtracking_iterator` to apply 3 suggestions)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/concurrent.rs:209:26
[INFO] [stderr]     |
[INFO] [stderr] 209 |     struct Uncloneable {};
[INFO] [stderr]     |                          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `backtracking_iterator` (lib test) generated 8 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/backtracking_iterator-d75644ee879b8558)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test concurrent::tests::dont_need_clone_test ... ok
[INFO] [stdout] test tests::backwalk_test ... ok
[INFO] [stdout] test tests::basic_test ... ok
[INFO] [stdout] test concurrent::tests::many_iter_clone_test ... ok
[INFO] [stdout] test concurrent::tests::many_iter_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests backtracking_iterator
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/traits.rs - traits::Walkbackable::walk_back (line 155) ... ok
[INFO] [stdout] test src/traits.rs - traits::Record::forget (line 36) ... ok
[INFO] [stdout] test src/traits.rs - traits::BacktrackingIterator::start_again (line 101) ... ok
[INFO] [stdout] test src/traits.rs - traits::BacktrackingIterator::peek (line 121) ... ok
[INFO] [stdout] test src/traits.rs - traits::BacktrackingIterator::backtrack (line 77) ... ok
[INFO] [stdout] test src/record.rs - record::BacktrackingRecorder<Iter>::drain_history (line 53) ... ok
[INFO] [stdout] test src/record.rs - record::BacktrackingRecorder<Iter>::into_iter (line 83) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c517131f4f2511e9b5a95f043dd0d8eb12ac9ee39abbb18e0009495996fec4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c517131f4f2511e9b5a95f043dd0d8eb12ac9ee39abbb18e0009495996fec4e", kill_on_drop: false }`
[INFO] [stdout] 0c517131f4f2511e9b5a95f043dd0d8eb12ac9ee39abbb18e0009495996fec4e
