[INFO] fetching crate combinatorial_patterns 0.1.0...
[INFO] testing combinatorial_patterns-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate combinatorial_patterns 0.1.0 into /workspace/builds/worker-5-tc1/source
[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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate combinatorial_patterns 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate combinatorial_patterns 0.1.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f930e6df48b70ec62f093772b7341f7bcdf0e84e5a696f9f996c34e511326b7
[INFO] running `Command { std: "docker" "start" "-a" "5f930e6df48b70ec62f093772b7341f7bcdf0e84e5a696f9f996c34e511326b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f930e6df48b70ec62f093772b7341f7bcdf0e84e5a696f9f996c34e511326b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f930e6df48b70ec62f093772b7341f7bcdf0e84e5a696f9f996c34e511326b7", kill_on_drop: false }`
[INFO] [stdout] 5f930e6df48b70ec62f093772b7341f7bcdf0e84e5a696f9f996c34e511326b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f58b78ff6b65cbee0ae57ea0a70275c0d46b685c23cc6d501e631f77e0ae4f9
[INFO] running `Command { std: "docker" "start" "-a" "6f58b78ff6b65cbee0ae57ea0a70275c0d46b685c23cc6d501e631f77e0ae4f9", 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` profile [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "6f58b78ff6b65cbee0ae57ea0a70275c0d46b685c23cc6d501e631f77e0ae4f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f58b78ff6b65cbee0ae57ea0a70275c0d46b685c23cc6d501e631f77e0ae4f9", kill_on_drop: false }`
[INFO] [stdout] 6f58b78ff6b65cbee0ae57ea0a70275c0d46b685c23cc6d501e631f77e0ae4f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34761d8d097ec56d541a26fa88a36219fd40d11fbb6679487f93de596ff6963c
[INFO] running `Command { std: "docker" "start" "-a" "34761d8d097ec56d541a26fa88a36219fd40d11fbb6679487f93de596ff6963c", kill_on_drop: false }`
[INFO] [stderr]    Compiling combinatorial_patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "34761d8d097ec56d541a26fa88a36219fd40d11fbb6679487f93de596ff6963c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34761d8d097ec56d541a26fa88a36219fd40d11fbb6679487f93de596ff6963c", kill_on_drop: false }`
[INFO] [stdout] 34761d8d097ec56d541a26fa88a36219fd40d11fbb6679487f93de596ff6963c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 118c041c96ba753c43becbf2ee28cea4e56ffa7f3d55e5a2ed13edf5e3a66a11
[INFO] running `Command { std: "docker" "start" "-a" "118c041c96ba753c43becbf2ee28cea4e56ffa7f3d55e5a2ed13edf5e3a66a11", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/combinatorial_patterns-e00c58a687f44346)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/combinatorial_patterns-b58d703ef408f4c9)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests combinatorial_patterns
[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 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 unresolved module or unlinked crate `env`
[INFO] [stdout]    --> src/latin_square.rs:123:28
[INFO] [stdout]     |
[INFO] [stdout] 123 |    let args: Vec<String> = env::args().collect();
[INFO] [stdout]     |                            ^^^ use of unresolved module or unlinked crate `env`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `env`, use `cargo add env` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]     |
[INFO] [stdout] 120 + use std::env;
[INFO] [stdout]     |
[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] 125 |    println!("{}", LatinSquare::new_random(size));
[INFO] [stdout]     |                   ^^^^^^^^^^^ use of undeclared type `LatinSquare`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 120 + 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 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "118c041c96ba753c43becbf2ee28cea4e56ffa7f3d55e5a2ed13edf5e3a66a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "118c041c96ba753c43becbf2ee28cea4e56ffa7f3d55e5a2ed13edf5e3a66a11", kill_on_drop: false }`
[INFO] [stdout] 118c041c96ba753c43becbf2ee28cea4e56ffa7f3d55e5a2ed13edf5e3a66a11