[INFO] fetching crate iterator-cache 0.1.0... [INFO] testing iterator-cache-0.1.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1 [INFO] extracting crate iterator-cache 0.1.0 into /workspace/builds/worker-3-tc2/source [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-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate iterator-cache 0.1.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 56f5218c3e3ad2079cca0d502b954e40911f5d22c0a76b67924a7dafb86142ec [INFO] running `Command { std: "docker" "start" "-a" "56f5218c3e3ad2079cca0d502b954e40911f5d22c0a76b67924a7dafb86142ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56f5218c3e3ad2079cca0d502b954e40911f5d22c0a76b67924a7dafb86142ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56f5218c3e3ad2079cca0d502b954e40911f5d22c0a76b67924a7dafb86142ec", kill_on_drop: false }` [INFO] [stdout] 56f5218c3e3ad2079cca0d502b954e40911f5d22c0a76b67924a7dafb86142ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b64dff731361dfcdfab3f7ccd8c8455338d7fda407e147fdfe4925630dd62042 [INFO] running `Command { std: "docker" "start" "-a" "b64dff731361dfcdfab3f7ccd8c8455338d7fda407e147fdfe4925630dd62042", 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` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "b64dff731361dfcdfab3f7ccd8c8455338d7fda407e147fdfe4925630dd62042", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b64dff731361dfcdfab3f7ccd8c8455338d7fda407e147fdfe4925630dd62042", kill_on_drop: false }` [INFO] [stdout] b64dff731361dfcdfab3f7ccd8c8455338d7fda407e147fdfe4925630dd62042 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d4dd512d79bb89b6b12c7179a92cf4d8880b28e7691a385d17433f345a7aa384 [INFO] running `Command { std: "docker" "start" "-a" "d4dd512d79bb89b6b12c7179a92cf4d8880b28e7691a385d17433f345a7aa384", 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: 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: 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: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: creating a shared reference to mutable static [INFO] [stdout] --> src/tests.rs:63:15 [INFO] [stdout] | [INFO] [stdout] 63 | assert_eq!(COUNTER,0); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/tests.rs:67:15 [INFO] [stdout] | [INFO] [stdout] 67 | assert_eq!(COUNTER,2); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [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] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 69 | let _ = iter.cache_more(2); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/tests.rs:71:15 [INFO] [stdout] | [INFO] [stdout] 71 | assert_eq!(COUNTER,4); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/tests.rs:83:15 [INFO] [stdout] | [INFO] [stdout] 83 | assert_eq!(COUNTER,5); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `Command { std: "docker" "inspect" "d4dd512d79bb89b6b12c7179a92cf4d8880b28e7691a385d17433f345a7aa384", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4dd512d79bb89b6b12c7179a92cf4d8880b28e7691a385d17433f345a7aa384", kill_on_drop: false }` [INFO] [stdout] d4dd512d79bb89b6b12c7179a92cf4d8880b28e7691a385d17433f345a7aa384 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 833aa6089cce56e12cb9ad5a21001fc484f0b98f2015dc324406baa98bb7d218 [INFO] running `Command { std: "docker" "start" "-a" "833aa6089cce56e12cb9ad5a21001fc484f0b98f2015dc324406baa98bb7d218", 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: 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: 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: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: creating a shared reference to mutable static [INFO] [stderr] --> src/tests.rs:63:15 [INFO] [stderr] | [INFO] [stderr] 63 | assert_eq!(COUNTER,0); [INFO] [stderr] | ^^^^^^^ shared reference to mutable static [INFO] [stderr] | [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stderr] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: creating a shared reference to mutable static [INFO] [stderr] --> src/tests.rs:67:15 [INFO] [stderr] | [INFO] [stderr] 67 | assert_eq!(COUNTER,2); [INFO] [stderr] | ^^^^^^^ shared reference to mutable static [INFO] [stderr] | [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [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] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 69 | let _ = iter.cache_more(2); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: creating a shared reference to mutable static [INFO] [stderr] --> src/tests.rs:71:15 [INFO] [stderr] | [INFO] [stderr] 71 | assert_eq!(COUNTER,4); [INFO] [stderr] | ^^^^^^^ shared reference to mutable static [INFO] [stderr] | [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stderr] [INFO] [stderr] warning: creating a shared reference to mutable static [INFO] [stderr] --> src/tests.rs:83:15 [INFO] [stderr] | [INFO] [stderr] 83 | assert_eq!(COUNTER,5); [INFO] [stderr] | ^^^^^^^ shared reference to mutable static [INFO] [stderr] | [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stderr] [INFO] [stderr] warning: `iterator-cache` (lib test) generated 10 warnings (run `cargo fix --lib -p iterator-cache --tests` to apply 3 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/iterator_cache-1ec0c0598ffedd67) [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test tests::tests::from_doc_test ... ok [INFO] [stdout] test tests::tests::iterator_methods ... ok [INFO] [stdout] test tests::tests::queue_overshoot_ok ... ok [INFO] [stdout] test tests::tests::queue_all ... ok [INFO] [stdout] test tests::tests::queue_some ... ok [INFO] [stdout] test tests::tests::return_errors ... ok [INFO] [stdout] test tests::tests::queue_too_many - should panic ... ok [INFO] [stdout] test tests::tests::lasy_eval ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s [INFO] [stdout] [INFO] [stderr] Doc-tests iterator_cache [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - IteratorCache::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" "833aa6089cce56e12cb9ad5a21001fc484f0b98f2015dc324406baa98bb7d218", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "833aa6089cce56e12cb9ad5a21001fc484f0b98f2015dc324406baa98bb7d218", kill_on_drop: false }` [INFO] [stdout] 833aa6089cce56e12cb9ad5a21001fc484f0b98f2015dc324406baa98bb7d218