[INFO] fetching crate combinatorial_patterns 0.1.0...
[INFO] testing combinatorial_patterns-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate combinatorial_patterns 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate combinatorial_patterns 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate combinatorial_patterns 0.1.0
[INFO] finished tweaking crates.io crate combinatorial_patterns 0.1.0
[INFO] tweaked toml for crates.io crate combinatorial_patterns 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate combinatorial_patterns 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e6cdea298e0dafd112bdfd4fb925ed1c36d5be62431046b7dc4eebdf36bf1a8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6e6cdea298e0dafd112bdfd4fb925ed1c36d5be62431046b7dc4eebdf36bf1a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e6cdea298e0dafd112bdfd4fb925ed1c36d5be62431046b7dc4eebdf36bf1a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e6cdea298e0dafd112bdfd4fb925ed1c36d5be62431046b7dc4eebdf36bf1a8", kill_on_drop: false }`
[INFO] [stdout] 6e6cdea298e0dafd112bdfd4fb925ed1c36d5be62431046b7dc4eebdf36bf1a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a3aa425b9dfd63b38c5622647a1fe9a1b75c81d455aa8af9c497a7a11fd3ab21
[INFO] running `Command { std: "docker" "start" "-a" "a3aa425b9dfd63b38c5622647a1fe9a1b75c81d455aa8af9c497a7a11fd3ab21", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling combinatorial_patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.66s
[INFO] running `Command { std: "docker" "inspect" "a3aa425b9dfd63b38c5622647a1fe9a1b75c81d455aa8af9c497a7a11fd3ab21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3aa425b9dfd63b38c5622647a1fe9a1b75c81d455aa8af9c497a7a11fd3ab21", kill_on_drop: false }`
[INFO] [stdout] a3aa425b9dfd63b38c5622647a1fe9a1b75c81d455aa8af9c497a7a11fd3ab21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c7fcdaa744e6a662ba29c7d2a57f0631df805fa4935aae64db307f5e0f33d46
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c7fcdaa744e6a662ba29c7d2a57f0631df805fa4935aae64db307f5e0f33d46", kill_on_drop: false }`
[INFO] [stderr]    Compiling combinatorial_patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/combinatorial_patterns-98c90f6c0e52da8d)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/combinatorial_patterns-78bf90869ae55cce)
[INFO] running `Command { std: "docker" "inspect" "7c7fcdaa744e6a662ba29c7d2a57f0631df805fa4935aae64db307f5e0f33d46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c7fcdaa744e6a662ba29c7d2a57f0631df805fa4935aae64db307f5e0f33d46", kill_on_drop: false }`
[INFO] [stdout] 7c7fcdaa744e6a662ba29c7d2a57f0631df805fa4935aae64db307f5e0f33d46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0891928b038d804e22cdc616a171699f749b35bcb163bbfa11ffc36a6845ecb
[INFO] running `Command { std: "docker" "start" "-a" "c0891928b038d804e22cdc616a171699f749b35bcb163bbfa11ffc36a6845ecb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/combinatorial_patterns-98c90f6c0e52da8d)
[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/main.rs (/opt/rustwide/target/debug/deps/combinatorial_patterns-78bf90869ae55cce)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests combinatorial_patterns
[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 1 test
[INFO] [stdout] test src/latin_square.rs - latin_square::LatinSquare (line 120) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/latin_square.rs - latin_square::LatinSquare (line 120) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `env`
[INFO] [stdout]  --> src/latin_square.rs:123:28
[INFO] [stdout]   |
[INFO] [stdout] 5 |    let args: Vec<String> = env::args().collect();
[INFO] [stdout]   |                            ^^^ use of undeclared crate or module `env`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `LatinSquare`
[INFO] [stdout]  --> src/latin_square.rs:125:19
[INFO] [stdout]   |
[INFO] [stdout] 7 |    println!("{}", LatinSquare::new_random(size));
[INFO] [stdout]   |                   ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use combinatorial_patterns::LatinSquare;
[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/latin_square.rs - latin_square::LatinSquare (line 120)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "c0891928b038d804e22cdc616a171699f749b35bcb163bbfa11ffc36a6845ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0891928b038d804e22cdc616a171699f749b35bcb163bbfa11ffc36a6845ecb", kill_on_drop: false }`
[INFO] [stdout] c0891928b038d804e22cdc616a171699f749b35bcb163bbfa11ffc36a6845ecb