[INFO] fetching crate rpn_icedpenguin 0.1.0...
[INFO] testing rpn_icedpenguin-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rpn_icedpenguin 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rpn_icedpenguin 0.1.0
[INFO] finished tweaking crates.io crate rpn_icedpenguin 0.1.0
[INFO] tweaked toml for crates.io crate rpn_icedpenguin 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rpn_icedpenguin 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d93063dbf7f6de59c4950e8e4808808110466d35c51c70e0527d26df96bee56a
[INFO] running `Command { std: "docker" "start" "-a" "d93063dbf7f6de59c4950e8e4808808110466d35c51c70e0527d26df96bee56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d93063dbf7f6de59c4950e8e4808808110466d35c51c70e0527d26df96bee56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d93063dbf7f6de59c4950e8e4808808110466d35c51c70e0527d26df96bee56a", kill_on_drop: false }`
[INFO] [stdout] d93063dbf7f6de59c4950e8e4808808110466d35c51c70e0527d26df96bee56a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 625d3c829032b1c22b703038deede50c58fa7cd226a79c1c1a62a1f0e5ed66eb
[INFO] running `Command { std: "docker" "start" "-a" "625d3c829032b1c22b703038deede50c58fa7cd226a79c1c1a62a1f0e5ed66eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rpn_icedpenguin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "625d3c829032b1c22b703038deede50c58fa7cd226a79c1c1a62a1f0e5ed66eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625d3c829032b1c22b703038deede50c58fa7cd226a79c1c1a62a1f0e5ed66eb", kill_on_drop: false }`
[INFO] [stdout] 625d3c829032b1c22b703038deede50c58fa7cd226a79c1c1a62a1f0e5ed66eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0889b7b08f7b4e84531d9f3b29dc8ccd903a1e0fecdf1ce87fd282191b99b69e
[INFO] running `Command { std: "docker" "start" "-a" "0889b7b08f7b4e84531d9f3b29dc8ccd903a1e0fecdf1ce87fd282191b99b69e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rpn_icedpenguin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "0889b7b08f7b4e84531d9f3b29dc8ccd903a1e0fecdf1ce87fd282191b99b69e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0889b7b08f7b4e84531d9f3b29dc8ccd903a1e0fecdf1ce87fd282191b99b69e", kill_on_drop: false }`
[INFO] [stdout] 0889b7b08f7b4e84531d9f3b29dc8ccd903a1e0fecdf1ce87fd282191b99b69e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a1b956df21dc24ee32d60dd110d6a2f5d05ea9fd646add7486c79e21bf6d184a
[INFO] running `Command { std: "docker" "start" "-a" "a1b956df21dc24ee32d60dd110d6a2f5d05ea9fd646add7486c79e21bf6d184a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rpn_icedpenguin-dab0561992f9be9b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests rpn_icedpenguin
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - eval (line 3) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - eval (line 3) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `rpn`
[INFO] [stdout]  --> src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | let a = rpn::eval(src).unwrap();
[INFO] [stdout]   |         ^^^ use of unresolved module or unlinked crate `rpn`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rpn`, use `cargo add rpn` 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 - eval (line 3)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a1b956df21dc24ee32d60dd110d6a2f5d05ea9fd646add7486c79e21bf6d184a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b956df21dc24ee32d60dd110d6a2f5d05ea9fd646add7486c79e21bf6d184a", kill_on_drop: false }`
[INFO] [stdout] a1b956df21dc24ee32d60dd110d6a2f5d05ea9fd646add7486c79e21bf6d184a