[INFO] fetching crate backtracking_iterator 0.4.4...
[INFO] testing backtracking_iterator-0.4.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate backtracking_iterator 0.4.4 into /workspace/builds/worker-3-tc1/source
[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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate backtracking_iterator 0.4.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fda960cd82b83e3a42a66f9c5482200cb10dd1d4f6e33fdae285c0e3d7d877c
[INFO] running `Command { std: "docker" "start" "-a" "5fda960cd82b83e3a42a66f9c5482200cb10dd1d4f6e33fdae285c0e3d7d877c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fda960cd82b83e3a42a66f9c5482200cb10dd1d4f6e33fdae285c0e3d7d877c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fda960cd82b83e3a42a66f9c5482200cb10dd1d4f6e33fdae285c0e3d7d877c", kill_on_drop: false }`
[INFO] [stdout] 5fda960cd82b83e3a42a66f9c5482200cb10dd1d4f6e33fdae285c0e3d7d877c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd5645b2ef8b99d11d314b4c8dc4444541e81549f32ab080b571afc2210d318
[INFO] running `Command { std: "docker" "start" "-a" "4cd5645b2ef8b99d11d314b4c8dc4444541e81549f32ab080b571afc2210d318", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtracking_iterator v0.4.4 (/opt/rustwide/workdir)
[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]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking` and `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` and `Progressing`
[INFO] [stdout]    --> src/concurrent.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "4cd5645b2ef8b99d11d314b4c8dc4444541e81549f32ab080b571afc2210d318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd5645b2ef8b99d11d314b4c8dc4444541e81549f32ab080b571afc2210d318", kill_on_drop: false }`
[INFO] [stdout] 4cd5645b2ef8b99d11d314b4c8dc4444541e81549f32ab080b571afc2210d318
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c7154943baea30abed6265c35c9e27f919fb28bf139746b7c08c5c2154b73ea
[INFO] running `Command { std: "docker" "start" "-a" "9c7154943baea30abed6265c35c9e27f919fb28bf139746b7c08c5c2154b73ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.10
[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]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking` and `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` and `Progressing`
[INFO] [stdout]    --> src/concurrent.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use crate::{Backtracking, Progressing};
[INFO] [stdout]     |                 ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling backtracking_iterator v0.4.4 (/opt/rustwide/workdir)
[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]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtracking` and `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` and `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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "9c7154943baea30abed6265c35c9e27f919fb28bf139746b7c08c5c2154b73ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c7154943baea30abed6265c35c9e27f919fb28bf139746b7c08c5c2154b73ea", kill_on_drop: false }`
[INFO] [stdout] 9c7154943baea30abed6265c35c9e27f919fb28bf139746b7c08c5c2154b73ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d0b685618e80b3be7e264e9170949e21c33c9c5f18f12200d4808bde7c43ab45
[INFO] running `Command { std: "docker" "start" "-a" "d0b685618e80b3be7e264e9170949e21c33c9c5f18f12200d4808bde7c43ab45", kill_on_drop: false }`
[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]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Backtracking` and `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` and `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 3 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `backtracking_iterator` (lib test) generated 4 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/backtracking_iterator-9578122f4ba93bdd)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test concurrent::tests::dont_need_clone_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] test tests::backwalk_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::BacktrackingIterator::backtrack (line 77) ... ok
[INFO] [stdout] test src/traits.rs - traits::Walkbackable::walk_back (line 155) ... ok
[INFO] [stdout] test src/traits.rs - traits::BacktrackingIterator::peek (line 121) ... ok
[INFO] [stdout] test src/record.rs - record::BacktrackingRecorder<Iter>::drain_history (line 53) ... 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/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 0.59s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d0b685618e80b3be7e264e9170949e21c33c9c5f18f12200d4808bde7c43ab45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b685618e80b3be7e264e9170949e21c33c9c5f18f12200d4808bde7c43ab45", kill_on_drop: false }`
[INFO] [stdout] d0b685618e80b3be7e264e9170949e21c33c9c5f18f12200d4808bde7c43ab45