[INFO] fetching crate closure_with_lee_study 0.1.0... [INFO] testing closure_with_lee_study-0.1.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate closure_with_lee_study 0.1.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate closure_with_lee_study 0.1.0 [INFO] finished tweaking crates.io crate closure_with_lee_study 0.1.0 [INFO] tweaked toml for crates.io crate closure_with_lee_study 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate closure_with_lee_study 0.1.0 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate closure_with_lee_study 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 24a23ab48710f6c3492eccea16953ee67fd338f683ae6e43e9a1a54356455ae1 [INFO] running `Command { std: "docker" "start" "-a" "24a23ab48710f6c3492eccea16953ee67fd338f683ae6e43e9a1a54356455ae1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "24a23ab48710f6c3492eccea16953ee67fd338f683ae6e43e9a1a54356455ae1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24a23ab48710f6c3492eccea16953ee67fd338f683ae6e43e9a1a54356455ae1", kill_on_drop: false }` [INFO] [stdout] 24a23ab48710f6c3492eccea16953ee67fd338f683ae6e43e9a1a54356455ae1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7876f4641c404edac76e154251cfe20b60ae1fb92528ff100d35e01b78baae38 [INFO] running `Command { std: "docker" "start" "-a" "7876f4641c404edac76e154251cfe20b60ae1fb92528ff100d35e01b78baae38", kill_on_drop: false }` [INFO] [stderr] Compiling closure_with_lee_study v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 38 | impl Counter { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 39 | fn new() -> Counter { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cacher` is never constructed [INFO] [stdout] --> src/main.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Cacher [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `value` are never used [INFO] [stdout] --> src/main.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 12 | / impl Cacher [INFO] [stdout] 13 | | where [INFO] [stdout] 14 | | T: Fn(u32) -> u32, [INFO] [stdout] | |______________________- associated items in this implementation [INFO] [stdout] 15 | { [INFO] [stdout] 16 | fn new(calc: T) -> Cacher { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | fn value(&mut self, arg: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout` is never used [INFO] [stdout] --> src/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn generate_workout(instensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "7876f4641c404edac76e154251cfe20b60ae1fb92528ff100d35e01b78baae38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7876f4641c404edac76e154251cfe20b60ae1fb92528ff100d35e01b78baae38", kill_on_drop: false }` [INFO] [stdout] 7876f4641c404edac76e154251cfe20b60ae1fb92528ff100d35e01b78baae38 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e37b1948812fc292c1cbae41bb6b74b923dcbeb487fcd171797c6b2ce2c126e8 [INFO] running `Command { std: "docker" "start" "-a" "e37b1948812fc292c1cbae41bb6b74b923dcbeb487fcd171797c6b2ce2c126e8", kill_on_drop: false }` [INFO] [stderr] Compiling closure_with_lee_study v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 38 | impl Counter { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 39 | fn new() -> Counter { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cacher` is never constructed [INFO] [stdout] --> src/main.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Cacher [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `value` are never used [INFO] [stdout] --> src/main.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 12 | / impl Cacher [INFO] [stdout] 13 | | where [INFO] [stdout] 14 | | T: Fn(u32) -> u32, [INFO] [stdout] | |______________________- associated items in this implementation [INFO] [stdout] 15 | { [INFO] [stdout] 16 | fn new(calc: T) -> Cacher { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | fn value(&mut self, arg: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout` is never used [INFO] [stdout] --> src/main.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn generate_workout(instensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> src/lib.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | let v2: Vec<_> = v1_iter.map(|x| x + 1).collect(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `counter` [INFO] [stdout] --> src/lib.rs:94:17 [INFO] [stdout] | [INFO] [stdout] 94 | let mut counter = Counter::new(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:94:13 [INFO] [stdout] | [INFO] [stdout] 94 | let mut counter = Counter::new(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `Command { std: "docker" "inspect" "e37b1948812fc292c1cbae41bb6b74b923dcbeb487fcd171797c6b2ce2c126e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e37b1948812fc292c1cbae41bb6b74b923dcbeb487fcd171797c6b2ce2c126e8", kill_on_drop: false }` [INFO] [stdout] e37b1948812fc292c1cbae41bb6b74b923dcbeb487fcd171797c6b2ce2c126e8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a74cff17357ba35bcaf583f6e3979ef1cccbb4eaf32aacf1f2287ea95f65217d [INFO] running `Command { std: "docker" "start" "-a" "a74cff17357ba35bcaf583f6e3979ef1cccbb4eaf32aacf1f2287ea95f65217d", kill_on_drop: false }` [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> src/lib.rs:39:8 [INFO] [stderr] | [INFO] [stderr] 38 | impl Counter { [INFO] [stderr] | ------------ associated function in this implementation [INFO] [stderr] 39 | fn new() -> Counter { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `closure_with_lee_study` (lib) generated 1 warning [INFO] [stderr] warning: struct `Cacher` is never constructed [INFO] [stderr] --> src/main.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct Cacher [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: associated items `new` and `value` are never used [INFO] [stderr] --> src/main.rs:16:8 [INFO] [stderr] | [INFO] [stderr] 12 | / impl Cacher [INFO] [stderr] 13 | | where [INFO] [stderr] 14 | | T: Fn(u32) -> u32, [INFO] [stderr] | |______________________- associated items in this implementation [INFO] [stderr] 15 | { [INFO] [stderr] 16 | fn new(calc: T) -> Cacher { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 23 | fn value(&mut self, arg: u32) -> u32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `generate_workout` is never used [INFO] [stderr] --> src/main.rs:35:4 [INFO] [stderr] | [INFO] [stderr] 35 | fn generate_workout(instensity: u32, random_number: u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `closure_with_lee_study` (bin "closure_with_lee_study" test) generated 3 warnings [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/lib.rs:70:13 [INFO] [stderr] | [INFO] [stderr] 70 | let v2: Vec<_> = v1_iter.map(|x| x + 1).collect(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `counter` [INFO] [stderr] --> src/lib.rs:94:17 [INFO] [stderr] | [INFO] [stderr] 94 | let mut counter = Counter::new(); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:94:13 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] running 5 tests [INFO] [stderr] 94 | let mut counter = Counter::new(); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `closure_with_lee_study` (lib test) generated 3 warnings (run `cargo fix --lib -p closure_with_lee_study --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/closure_with_lee_study-510852c15b4b928f) [INFO] [stdout] test tests::iterator_filter_self ... ok [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/closure_with_lee_study-6936c179a8d9b5d4) [INFO] [stdout] test tests::iterator_sum ... ok [INFO] [stdout] test tests::iterator_sum_self ... ok [INFO] [stdout] test tests::my_iterator_test1 ... ok [INFO] [stdout] test tests::my_iterator_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [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] [stderr] Doc-tests closure_with_lee_study [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - test_doc_test (line 24) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - test_doc_test (line 24) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `closure` [INFO] [stdout] --> src/lib.rs:26:14 [INFO] [stdout] | [INFO] [stdout] 4 | let answer = closure::test_doc_test(); [INFO] [stdout] | ^^^^^^^ use of unresolved module or unlinked crate `closure` [INFO] [stdout] | [INFO] [stdout] = help: if you wanted to use a crate named `closure`, use `cargo add closure` to add it to your `Cargo.toml` [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - test_doc_test (line 24) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "a74cff17357ba35bcaf583f6e3979ef1cccbb4eaf32aacf1f2287ea95f65217d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a74cff17357ba35bcaf583f6e3979ef1cccbb4eaf32aacf1f2287ea95f65217d", kill_on_drop: false }` [INFO] [stdout] a74cff17357ba35bcaf583f6e3979ef1cccbb4eaf32aacf1f2287ea95f65217d