[INFO] fetching crate rust_book_tutorial_rpn_calc 0.1.0...
[INFO] testing rust_book_tutorial_rpn_calc-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate rust_book_tutorial_rpn_calc 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rust_book_tutorial_rpn_calc 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_book_tutorial_rpn_calc 0.1.0
[INFO] finished tweaking crates.io crate rust_book_tutorial_rpn_calc 0.1.0
[INFO] tweaked toml for crates.io crate rust_book_tutorial_rpn_calc 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c36b06b999f20f072cfa9cea97a80014d4f874129e9c7a4c5443d0f5e0d9c2a7
[INFO] running `Command { std: "docker" "start" "-a" "c36b06b999f20f072cfa9cea97a80014d4f874129e9c7a4c5443d0f5e0d9c2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c36b06b999f20f072cfa9cea97a80014d4f874129e9c7a4c5443d0f5e0d9c2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c36b06b999f20f072cfa9cea97a80014d4f874129e9c7a4c5443d0f5e0d9c2a7", kill_on_drop: false }`
[INFO] [stdout] c36b06b999f20f072cfa9cea97a80014d4f874129e9c7a4c5443d0f5e0d9c2a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cb9e3975080d4971c31f63666cfab4d81c7acafe9336fd0fdc43e4aa2a3bf0c
[INFO] running `Command { std: "docker" "start" "-a" "0cb9e3975080d4971c31f63666cfab4d81c7acafe9336fd0fdc43e4aa2a3bf0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_tutorial_rpn_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "0cb9e3975080d4971c31f63666cfab4d81c7acafe9336fd0fdc43e4aa2a3bf0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cb9e3975080d4971c31f63666cfab4d81c7acafe9336fd0fdc43e4aa2a3bf0c", kill_on_drop: false }`
[INFO] [stdout] 0cb9e3975080d4971c31f63666cfab4d81c7acafe9336fd0fdc43e4aa2a3bf0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17bdbeab293f09362046bb0ab924c1df63dc1f454ccdf8fa3781c1ff3d3b4578
[INFO] running `Command { std: "docker" "start" "-a" "17bdbeab293f09362046bb0ab924c1df63dc1f454ccdf8fa3781c1ff3d3b4578", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_tutorial_rpn_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "17bdbeab293f09362046bb0ab924c1df63dc1f454ccdf8fa3781c1ff3d3b4578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17bdbeab293f09362046bb0ab924c1df63dc1f454ccdf8fa3781c1ff3d3b4578", kill_on_drop: false }`
[INFO] [stdout] 17bdbeab293f09362046bb0ab924c1df63dc1f454ccdf8fa3781c1ff3d3b4578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b1f83489c3a332038c2d52de197b71916f6fedd3e4083851367b35e1964814ca
[INFO] running `Command { std: "docker" "start" "-a" "b1f83489c3a332038c2d52de197b71916f6fedd3e4083851367b35e1964814ca", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_book_tutorial_rpn_calc-b607c1db935878c6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... 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]    Doc-tests rust_book_tutorial_rpn_calc
[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 undeclared crate or module `rpn_calc`
[INFO] [stdout]  --> src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | let a = rpn_calc::eval(src).unwrap();
[INFO] [stdout]   |         ^^^^^^^^ use of undeclared crate or module `rpn_calc`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b1f83489c3a332038c2d52de197b71916f6fedd3e4083851367b35e1964814ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f83489c3a332038c2d52de197b71916f6fedd3e4083851367b35e1964814ca", kill_on_drop: false }`
[INFO] [stdout] b1f83489c3a332038c2d52de197b71916f6fedd3e4083851367b35e1964814ca
[INFO] testing rust_book_tutorial_rpn_calc-0.1.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate rust_book_tutorial_rpn_calc 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rust_book_tutorial_rpn_calc 0.1.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_book_tutorial_rpn_calc 0.1.0
[INFO] finished tweaking crates.io crate rust_book_tutorial_rpn_calc 0.1.0
[INFO] tweaked toml for crates.io crate rust_book_tutorial_rpn_calc 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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-2023-12-22" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2deb41363f6e059e05b506bea50e3f15b1e55105f14f49476793f6f4a9508d6
[INFO] running `Command { std: "docker" "start" "-a" "c2deb41363f6e059e05b506bea50e3f15b1e55105f14f49476793f6f4a9508d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2deb41363f6e059e05b506bea50e3f15b1e55105f14f49476793f6f4a9508d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2deb41363f6e059e05b506bea50e3f15b1e55105f14f49476793f6f4a9508d6", kill_on_drop: false }`
[INFO] [stdout] c2deb41363f6e059e05b506bea50e3f15b1e55105f14f49476793f6f4a9508d6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee4dded7828e9f8244e830fa9ae63bb65906530d3d292f60dbf45928a3d507eb
[INFO] running `Command { std: "docker" "start" "-a" "ee4dded7828e9f8244e830fa9ae63bb65906530d3d292f60dbf45928a3d507eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_tutorial_rpn_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "ee4dded7828e9f8244e830fa9ae63bb65906530d3d292f60dbf45928a3d507eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4dded7828e9f8244e830fa9ae63bb65906530d3d292f60dbf45928a3d507eb", kill_on_drop: false }`
[INFO] [stdout] ee4dded7828e9f8244e830fa9ae63bb65906530d3d292f60dbf45928a3d507eb
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7217c0a7a8fbe401326e62e20d4d7175b8aa0760cc706a9fca0413e1c59b6d8b
[INFO] running `Command { std: "docker" "start" "-a" "7217c0a7a8fbe401326e62e20d4d7175b8aa0760cc706a9fca0413e1c59b6d8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_tutorial_rpn_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "7217c0a7a8fbe401326e62e20d4d7175b8aa0760cc706a9fca0413e1c59b6d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7217c0a7a8fbe401326e62e20d4d7175b8aa0760cc706a9fca0413e1c59b6d8b", kill_on_drop: false }`
[INFO] [stdout] 7217c0a7a8fbe401326e62e20d4d7175b8aa0760cc706a9fca0413e1c59b6d8b
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3eac9ce81a67dc1d0ac255b14d2ead9e9c0cefda1f2a3aa7e6a4061bf3467a64
[INFO] running `Command { std: "docker" "start" "-a" "3eac9ce81a67dc1d0ac255b14d2ead9e9c0cefda1f2a3aa7e6a4061bf3467a64", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_book_tutorial_rpn_calc-a56a6e00cb681e79)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... 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]    Doc-tests rust_book_tutorial_rpn_calc
[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 undeclared crate or module `rpn_calc`
[INFO] [stdout]  --> src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | let a = rpn_calc::eval(src).unwrap();
[INFO] [stdout]   |         ^^^^^^^^ use of undeclared crate or module `rpn_calc`
[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 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "3eac9ce81a67dc1d0ac255b14d2ead9e9c0cefda1f2a3aa7e6a4061bf3467a64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eac9ce81a67dc1d0ac255b14d2ead9e9c0cefda1f2a3aa7e6a4061bf3467a64", kill_on_drop: false }`
[INFO] [stdout] 3eac9ce81a67dc1d0ac255b14d2ead9e9c0cefda1f2a3aa7e6a4061bf3467a64
