[INFO] fetching crate twentyfour 0.1.0...
[INFO] testing twentyfour-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate twentyfour 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate twentyfour 0.1.0
[INFO] finished tweaking crates.io crate twentyfour 0.1.0
[INFO] tweaked toml for crates.io crate twentyfour 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate twentyfour 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7058c9ebc8d8fce30bc5a2cb3e9692ff0bbf75dfc53efa7547faca82cefdcc17
[INFO] running `Command { std: "docker" "start" "-a" "7058c9ebc8d8fce30bc5a2cb3e9692ff0bbf75dfc53efa7547faca82cefdcc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7058c9ebc8d8fce30bc5a2cb3e9692ff0bbf75dfc53efa7547faca82cefdcc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7058c9ebc8d8fce30bc5a2cb3e9692ff0bbf75dfc53efa7547faca82cefdcc17", kill_on_drop: false }`
[INFO] [stdout] 7058c9ebc8d8fce30bc5a2cb3e9692ff0bbf75dfc53efa7547faca82cefdcc17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 055a21cbad4ad01cb24ac146aca5d06037a6ad04b6983971a84015c639b1c43e
[INFO] running `Command { std: "docker" "start" "-a" "055a21cbad4ad01cb24ac146aca5d06037a6ad04b6983971a84015c639b1c43e", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling twentyfour v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `wasm`
[INFO] [stdout]   --> src/bound_op.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[cfg_attr(wasm, wasm_bindgen)]
[INFO] [stdout]    |            ^^^^ help: found config with similar value: `target_family = "wasm"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(wasm)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(wasm)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "055a21cbad4ad01cb24ac146aca5d06037a6ad04b6983971a84015c639b1c43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "055a21cbad4ad01cb24ac146aca5d06037a6ad04b6983971a84015c639b1c43e", kill_on_drop: false }`
[INFO] [stdout] 055a21cbad4ad01cb24ac146aca5d06037a6ad04b6983971a84015c639b1c43e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 553a8a531bc4d80cbf5c1b8308bb1aa744b30c2328d6307a8987064c7d6f7ede
[INFO] running `Command { std: "docker" "start" "-a" "553a8a531bc4d80cbf5c1b8308bb1aa744b30c2328d6307a8987064c7d6f7ede", kill_on_drop: false }`
[INFO] [stderr]    Compiling twentyfour v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `wasm`
[INFO] [stdout]   --> src/bound_op.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[cfg_attr(wasm, wasm_bindgen)]
[INFO] [stdout]    |            ^^^^ help: found config with similar value: `target_family = "wasm"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(wasm)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(wasm)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `wasm`
[INFO] [stdout]   --> src/bound_op.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | #[cfg_attr(wasm, wasm_bindgen)]
[INFO] [stdout]    |            ^^^^ help: found config with similar value: `target_family = "wasm"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(wasm)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(wasm)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "553a8a531bc4d80cbf5c1b8308bb1aa744b30c2328d6307a8987064c7d6f7ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "553a8a531bc4d80cbf5c1b8308bb1aa744b30c2328d6307a8987064c7d6f7ede", kill_on_drop: false }`
[INFO] [stdout] 553a8a531bc4d80cbf5c1b8308bb1aa744b30c2328d6307a8987064c7d6f7ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16b16d1e1e7f9a0fade7a658d77e2f0cb5ed6496de92948656ab8634a76f47ba
[INFO] running `Command { std: "docker" "start" "-a" "16b16d1e1e7f9a0fade7a658d77e2f0cb5ed6496de92948656ab8634a76f47ba", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `wasm`
[INFO] [stderr]   --> src/bound_op.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 | #[cfg_attr(wasm, wasm_bindgen)]
[INFO] [stderr]    |            ^^^^ help: found config with similar value: `target_family = "wasm"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(wasm)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(wasm)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `twentyfour` (lib) generated 1 warning
[INFO] [stderr] warning: `twentyfour` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twentyfour-1900d1a812f71b9d)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test card::card_tests::test_cards_ops_2_dup ... ok
[INFO] [stdout] test card::card_tests::test_op_product_2 ... ok
[INFO] [stdout] test card::card_tests::test_permutations_2 ... ok
[INFO] [stdout] test card::card_tests::test_op_product_3 ... ok
[INFO] [stdout] test card::card_tests::test_permutations_3 ... ok
[INFO] [stdout] test card::card_tests::test_op_product_4 ... ok
[INFO] [stdout] test card::card_tests::test_permutations_3_dup ... ok
[INFO] [stdout] test card::card_tests::test_cards_ops ... ok
[INFO] [stdout] test card::card_tests::test_solve_3s ... ok
[INFO] [stdout] test card::card_tests::test_solve_no_sol ... ok
[INFO] [stdout] test card::card_tests::test_permutations_2_dup ... ok
[INFO] [stdout] test card::card_tests::test_solve_difficult ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twentyfour
[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] running `Command { std: "docker" "inspect" "16b16d1e1e7f9a0fade7a658d77e2f0cb5ed6496de92948656ab8634a76f47ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b16d1e1e7f9a0fade7a658d77e2f0cb5ed6496de92948656ab8634a76f47ba", kill_on_drop: false }`
[INFO] [stdout] 16b16d1e1e7f9a0fade7a658d77e2f0cb5ed6496de92948656ab8634a76f47ba