[INFO] fetching crate cacher_hasher 0.1.1...
[INFO] testing cacher_hasher-0.1.1 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate cacher_hasher 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate cacher_hasher 0.1.1
[INFO] finished tweaking crates.io crate cacher_hasher 0.1.1
[INFO] tweaked toml for crates.io crate cacher_hasher 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cacher_hasher 0.1.1 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cacher_hasher 0.1.1 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36a1ac7e206be9a53f1b91058a069eabdc16fc303aed35d15e75a6366a8c49d1
[INFO] running `Command { std: "docker" "start" "-a" "36a1ac7e206be9a53f1b91058a069eabdc16fc303aed35d15e75a6366a8c49d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36a1ac7e206be9a53f1b91058a069eabdc16fc303aed35d15e75a6366a8c49d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a1ac7e206be9a53f1b91058a069eabdc16fc303aed35d15e75a6366a8c49d1", kill_on_drop: false }`
[INFO] [stdout] 36a1ac7e206be9a53f1b91058a069eabdc16fc303aed35d15e75a6366a8c49d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2d799402121f7dfd69921d89cbcca3ee0a0a97e261e1d828053f9c1d3b301d2
[INFO] running `Command { std: "docker" "start" "-a" "d2d799402121f7dfd69921d89cbcca3ee0a0a97e261e1d828053f9c1d3b301d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cacher_hasher v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `intensity`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]   |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `random_number`
[INFO] [stdout]  --> src/main.rs:7:37
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_random_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "d2d799402121f7dfd69921d89cbcca3ee0a0a97e261e1d828053f9c1d3b301d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d799402121f7dfd69921d89cbcca3ee0a0a97e261e1d828053f9c1d3b301d2", kill_on_drop: false }`
[INFO] [stdout] d2d799402121f7dfd69921d89cbcca3ee0a0a97e261e1d828053f9c1d3b301d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2cd1e89f9d3a46849f6928605ce1d599f7ddc6ae12d7eb15af79536db947692
[INFO] running `Command { std: "docker" "start" "-a" "d2cd1e89f9d3a46849f6928605ce1d599f7ddc6ae12d7eb15af79536db947692", kill_on_drop: false }`
[INFO] [stderr]    Compiling cacher_hasher v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `intensity`
[INFO] [stdout]  --> src/main.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]   |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `random_number`
[INFO] [stdout]  --> src/main.rs:7:37
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_random_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "d2cd1e89f9d3a46849f6928605ce1d599f7ddc6ae12d7eb15af79536db947692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2cd1e89f9d3a46849f6928605ce1d599f7ddc6ae12d7eb15af79536db947692", kill_on_drop: false }`
[INFO] [stdout] d2cd1e89f9d3a46849f6928605ce1d599f7ddc6ae12d7eb15af79536db947692
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57626c4d70d7c7b5bf2175562d63ae575ab50664533e3517e86845371fe78eb2
[INFO] running `Command { std: "docker" "start" "-a" "57626c4d70d7c7b5bf2175562d63ae575ab50664533e3517e86845371fe78eb2", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `intensity`
[INFO] [stderr]  --> src/main.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stderr]   |                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `random_number`
[INFO] [stderr]  --> src/main.rs:7:37
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stderr]   |                                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_random_number`
[INFO] [stderr] 
[INFO] [stderr] warning: `cacher_hasher` (bin "cacher_hasher" test) generated 2 warnings (run `cargo fix --bin "cacher_hasher" -p cacher_hasher --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cacher_hasher-4fd71ee7203b2531)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::caching_counter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cacher_hasher-acb91a7e09847bae)
[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 cacher_hasher
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Cacher (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Cacher (line 10) stdout ----
[INFO] [stdout] error[E0433]: cannot find type `RefCell` in this scope
[INFO] [stdout]   --> src/lib.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | let ref_counter = RefCell::new(0);
[INFO] [stdout]    |                   ^^^^^^^ use of undeclared type `RefCell`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 10 + use std::cell::RefCell;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `Cacher` in this scope
[INFO] [stdout]   --> src/lib.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 |  let mut cached_function_return = Cacher::new(|num| {
[INFO] [stdout]    |                                   ^^^^^^ use of undeclared type `Cacher`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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 - Cacher (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "57626c4d70d7c7b5bf2175562d63ae575ab50664533e3517e86845371fe78eb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57626c4d70d7c7b5bf2175562d63ae575ab50664533e3517e86845371fe78eb2", kill_on_drop: false }`
[INFO] [stdout] 57626c4d70d7c7b5bf2175562d63ae575ab50664533e3517e86845371fe78eb2
