[INFO] fetching crate bl_save 0.2.0...
[INFO] testing bl_save-0.2.0 against beta-2025-09-21 for beta-1.91-2
[INFO] extracting crate bl_save 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate bl_save 0.2.0
[INFO] finished tweaking crates.io crate bl_save 0.2.0
[INFO] tweaked toml for crates.io crate bl_save 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bl_save 0.2.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f2bd06a241e32677c1e2ca9bef14c37c4cfb4bbfa35209814058276830173e4d
[INFO] running `Command { std: "docker" "start" "-a" "f2bd06a241e32677c1e2ca9bef14c37c4cfb4bbfa35209814058276830173e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2bd06a241e32677c1e2ca9bef14c37c4cfb4bbfa35209814058276830173e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bd06a241e32677c1e2ca9bef14c37c4cfb4bbfa35209814058276830173e4d", kill_on_drop: false }`
[INFO] [stdout] f2bd06a241e32677c1e2ca9bef14c37c4cfb4bbfa35209814058276830173e4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] effff831c4e0be73dc0eb1fc04930265195f566cf5c2e4cd958d15c74a11a832
[INFO] running `Command { std: "docker" "start" "-a" "effff831c4e0be73dc0eb1fc04930265195f566cf5c2e4cd958d15c74a11a832", kill_on_drop: false }`
[INFO] [stderr]    Compiling bl_save v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "effff831c4e0be73dc0eb1fc04930265195f566cf5c2e4cd958d15c74a11a832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "effff831c4e0be73dc0eb1fc04930265195f566cf5c2e4cd958d15c74a11a832", kill_on_drop: false }`
[INFO] [stdout] effff831c4e0be73dc0eb1fc04930265195f566cf5c2e4cd958d15c74a11a832
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 39191d0f2a3f29ac8d7fd6be120893eaf5f97fc52b30f5a7cb2193bc6b8c7ecc
[INFO] running `Command { std: "docker" "start" "-a" "39191d0f2a3f29ac8d7fd6be120893eaf5f97fc52b30f5a7cb2193bc6b8c7ecc", kill_on_drop: false }`
[INFO] [stderr]    Compiling bl_save v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "39191d0f2a3f29ac8d7fd6be120893eaf5f97fc52b30f5a7cb2193bc6b8c7ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39191d0f2a3f29ac8d7fd6be120893eaf5f97fc52b30f5a7cb2193bc6b8c7ecc", kill_on_drop: false }`
[INFO] [stdout] 39191d0f2a3f29ac8d7fd6be120893eaf5f97fc52b30f5a7cb2193bc6b8c7ecc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 46e535ac3c69e38aff615cfbf7369c78902cb545e1e773ccd225f6fd0a2c83e7
[INFO] running `Command { std: "docker" "start" "-a" "46e535ac3c69e38aff615cfbf7369c78902cb545e1e773ccd225f6fd0a2c83e7", 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/bl_save-f3fc2010b24c0078)
[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]      Running unittests src/bin/print.rs (/opt/rustwide/target/debug/deps/print-01e59dc5ab787563)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bl_save
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 8) ... FAILED
[INFO] [stdout] test src/read.rs - read::Reader<R>::new (line 28) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 8) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BufReader`
[INFO] [stdout]  --> src/lib.rs:10:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | let file = BufReader::new(File::open("House.bls")?);
[INFO] [stdout]   |            ^^^^^^^^^ use of undeclared type `BufReader`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::io::BufReader;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]  --> src/lib.rs:10:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | let file = BufReader::new(File::open("House.bls")?);
[INFO] [stdout]   |                           ^^^^ use of undeclared type `File`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fs::File;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout]  4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() {
[INFO] [stdout]    |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 16 |     let brick = brick?;
[INFO] [stdout]    |                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] ---- src/read.rs - read::Reader<R>::new (line 28) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `BufReader`
[INFO] [stdout]  --> src/read.rs:30:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | let file = BufReader::new(File::open("House.bls")?);
[INFO] [stdout]   |            ^^^^^^^^^ use of undeclared type `BufReader`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::io::BufReader;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]  --> src/read.rs:30:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | let file = BufReader::new(File::open("House.bls")?);
[INFO] [stdout]   |                           ^^^^ use of undeclared type `File`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fs::File;
[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 - (line 8)
[INFO] [stdout]     src/read.rs - read::Reader<R>::new (line 28)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "46e535ac3c69e38aff615cfbf7369c78902cb545e1e773ccd225f6fd0a2c83e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46e535ac3c69e38aff615cfbf7369c78902cb545e1e773ccd225f6fd0a2c83e7", kill_on_drop: false }`
[INFO] [stdout] 46e535ac3c69e38aff615cfbf7369c78902cb545e1e773ccd225f6fd0a2c83e7
