[INFO] fetching crate iterator-cache 0.1.0...
[INFO] testing iterator-cache-0.1.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate iterator-cache 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate iterator-cache 0.1.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iterator-cache 0.1.0
[INFO] finished tweaking crates.io crate iterator-cache 0.1.0
[INFO] tweaked toml for crates.io crate iterator-cache 0.1.0 written to /workspace/builds/worker-2-tc1/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" "+1.69.0" "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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d2d7d97bb74f5ae839cb6a48bc9d4b58a692369dfaf1764f5932a142ef5b329
[INFO] running `Command { std: "docker" "start" "-a" "7d2d7d97bb74f5ae839cb6a48bc9d4b58a692369dfaf1764f5932a142ef5b329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d2d7d97bb74f5ae839cb6a48bc9d4b58a692369dfaf1764f5932a142ef5b329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2d7d97bb74f5ae839cb6a48bc9d4b58a692369dfaf1764f5932a142ef5b329", kill_on_drop: false }`
[INFO] [stdout] 7d2d7d97bb74f5ae839cb6a48bc9d4b58a692369dfaf1764f5932a142ef5b329
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b832c73ac3c8260af2de079dbc0fcab76c715fc5e41fa413209240021408803
[INFO] running `Command { std: "docker" "start" "-a" "6b832c73ac3c8260af2de079dbc0fcab76c715fc5e41fa413209240021408803", kill_on_drop: false }`
[INFO] [stderr]    Compiling queues v1.1.0
[INFO] [stderr]    Compiling iterator-cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "6b832c73ac3c8260af2de079dbc0fcab76c715fc5e41fa413209240021408803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b832c73ac3c8260af2de079dbc0fcab76c715fc5e41fa413209240021408803", kill_on_drop: false }`
[INFO] [stdout] 6b832c73ac3c8260af2de079dbc0fcab76c715fc5e41fa413209240021408803
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63c8221009b039210c384ea43f8d417233dd4a4f00624873de4a25b31e82b287
[INFO] running `Command { std: "docker" "start" "-a" "63c8221009b039210c384ea43f8d417233dd4a4f00624873de4a25b31e82b287", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterator-cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/tests.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut iter = vec![1,2,3,4,5].into_iter().cache(6).unwrap();
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/tests.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut iter = vec![1,2,3,4,5].into_iter()
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut iter = vec![1,2,3,4,5].into_iter().cache(6).unwrap();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut iter = vec![1,2,3,4,5].into_iter()
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:74:7
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut iter = vec![1,2,3,4,5].into_iter()
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tests.rs:69:3
[INFO] [stdout]    |
[INFO] [stdout] 69 |         iter.cache_more(2);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "63c8221009b039210c384ea43f8d417233dd4a4f00624873de4a25b31e82b287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c8221009b039210c384ea43f8d417233dd4a4f00624873de4a25b31e82b287", kill_on_drop: false }`
[INFO] [stdout] 63c8221009b039210c384ea43f8d417233dd4a4f00624873de4a25b31e82b287
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01f955e9a9f33857eec0932e8e53ba53f7a79b74025d828fcfe75fcbc454767b
[INFO] running `Command { std: "docker" "start" "-a" "01f955e9a9f33857eec0932e8e53ba53f7a79b74025d828fcfe75fcbc454767b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `iter`
[INFO] [stderr]   --> src/tests.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut iter = vec![1,2,3,4,5].into_iter().cache(6).unwrap();
[INFO] [stderr]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iter`
[INFO] [stderr]   --> src/tests.rs:74:11
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let mut iter = vec![1,2,3,4,5].into_iter()
[INFO] [stderr]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut iter = vec![1,2,3,4,5].into_iter().cache(6).unwrap();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:55:7
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut iter = vec![1,2,3,4,5].into_iter()
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:74:7
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let mut iter = vec![1,2,3,4,5].into_iter()
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/tests.rs:69:3
[INFO] [stderr]    |
[INFO] [stderr] 69 |         iter.cache_more(2);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `iterator-cache` (lib test) generated 6 warnings (run `cargo fix --lib -p iterator-cache --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/iterator_cache-3dad478b7ef13fd5)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::tests::iterator_methods ... ok
[INFO] [stdout] test tests::tests::queue_overshoot_ok ... ok
[INFO] [stdout] test tests::tests::queue_some ... ok
[INFO] [stdout] test tests::tests::queue_all ... ok
[INFO] [stdout] test tests::tests::lasy_eval ... ok
[INFO] [stdout] test tests::tests::from_doc_test ... ok
[INFO] [stdout] test tests::tests::return_errors ... ok
[INFO] [stdout] test tests::tests::queue_too_many - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterator-cache
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - IteratorCache<T>::cache_more (line 47) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01f955e9a9f33857eec0932e8e53ba53f7a79b74025d828fcfe75fcbc454767b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f955e9a9f33857eec0932e8e53ba53f7a79b74025d828fcfe75fcbc454767b", kill_on_drop: false }`
[INFO] [stdout] 01f955e9a9f33857eec0932e8e53ba53f7a79b74025d828fcfe75fcbc454767b
