[INFO] fetching crate cacher_hasher 0.1.1...
[INFO] testing cacher_hasher-0.1.1 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate cacher_hasher 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate cacher_hasher 0.1.1 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc2/source/Cargo.toml
[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-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 163f05c8b0f69b16327e7727ef491e77d5e1a5bd00d777593796a4c2efa6468a
[INFO] running `Command { std: "docker" "start" "-a" "163f05c8b0f69b16327e7727ef491e77d5e1a5bd00d777593796a4c2efa6468a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "163f05c8b0f69b16327e7727ef491e77d5e1a5bd00d777593796a4c2efa6468a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "163f05c8b0f69b16327e7727ef491e77d5e1a5bd00d777593796a4c2efa6468a", kill_on_drop: false }`
[INFO] [stdout] 163f05c8b0f69b16327e7727ef491e77d5e1a5bd00d777593796a4c2efa6468a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 892aa708e7b33c58c4907e71c1c165c8f3d5f0b9197d39889005ea8f23d3c80e
[INFO] running `Command { std: "docker" "start" "-a" "892aa708e7b33c58c4907e71c1c165c8f3d5f0b9197d39889005ea8f23d3c80e", 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)]` 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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "892aa708e7b33c58c4907e71c1c165c8f3d5f0b9197d39889005ea8f23d3c80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "892aa708e7b33c58c4907e71c1c165c8f3d5f0b9197d39889005ea8f23d3c80e", kill_on_drop: false }`
[INFO] [stdout] 892aa708e7b33c58c4907e71c1c165c8f3d5f0b9197d39889005ea8f23d3c80e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afc33c0d4bdf4d0b66f7aa799536ec3c69bc3a837d2c3527a6dd7d3f7dc9b0bc
[INFO] running `Command { std: "docker" "start" "-a" "afc33c0d4bdf4d0b66f7aa799536ec3c69bc3a837d2c3527a6dd7d3f7dc9b0bc", 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)]` 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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "afc33c0d4bdf4d0b66f7aa799536ec3c69bc3a837d2c3527a6dd7d3f7dc9b0bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc33c0d4bdf4d0b66f7aa799536ec3c69bc3a837d2c3527a6dd7d3f7dc9b0bc", kill_on_drop: false }`
[INFO] [stdout] afc33c0d4bdf4d0b66f7aa799536ec3c69bc3a837d2c3527a6dd7d3f7dc9b0bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fbd1c4e0d10332fecacf599db5b493f06b83bab6095a0fdee5455151c7f81df5
[INFO] running `Command { std: "docker" "start" "-a" "fbd1c4e0d10332fecacf599db5b493f06b83bab6095a0fdee5455151c7f81df5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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)]` 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" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cacher_hasher-a6bb1be7fea1fa93)
[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-a7498682b4bead61)
[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]: failed to resolve: use of undeclared type `RefCell`
[INFO] [stdout]  --> src/lib.rs:11:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | let ref_counter = RefCell::new(0);
[INFO] [stdout]   |                   ^^^^^^^ use of undeclared type `RefCell`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 + use core::cell::RefCell;
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::cell::RefCell;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Cacher`
[INFO] [stdout]  --> src/lib.rs:12:35
[INFO] [stdout]   |
[INFO] [stdout] 4 |  let mut cached_function_return = Cacher::new(|num| {
[INFO] [stdout]   |                                   ^^^^^^ use of undeclared type `Cacher`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use cacher_hasher::Cacher;
[INFO] [stdout]   |
[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 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "fbd1c4e0d10332fecacf599db5b493f06b83bab6095a0fdee5455151c7f81df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd1c4e0d10332fecacf599db5b493f06b83bab6095a0fdee5455151c7f81df5", kill_on_drop: false }`
[INFO] [stdout] fbd1c4e0d10332fecacf599db5b493f06b83bab6095a0fdee5455151c7f81df5
