[INFO] fetching crate ralgo-test-util 0.1.0... [INFO] testing ralgo-test-util-0.1.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1 [INFO] extracting crate ralgo-test-util 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate ralgo-test-util 0.1.0 [INFO] finished tweaking crates.io crate ralgo-test-util 0.1.0 [INFO] tweaked toml for crates.io crate ralgo-test-util 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ralgo-test-util 0.1.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate ralgo-test-util 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 209d0fb5c8b421ffc5e5af6b28d84dab1c195e6582adc02740179a71124738a4 [INFO] running `Command { std: "docker" "start" "-a" "209d0fb5c8b421ffc5e5af6b28d84dab1c195e6582adc02740179a71124738a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "209d0fb5c8b421ffc5e5af6b28d84dab1c195e6582adc02740179a71124738a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "209d0fb5c8b421ffc5e5af6b28d84dab1c195e6582adc02740179a71124738a4", kill_on_drop: false }` [INFO] [stdout] 209d0fb5c8b421ffc5e5af6b28d84dab1c195e6582adc02740179a71124738a4 [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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 36b6062bce9916534287e32941f0a49f590e61d816f2b4e7b78dc1263daa5e9b [INFO] running `Command { std: "docker" "start" "-a" "36b6062bce9916534287e32941f0a49f590e61d816f2b4e7b78dc1263daa5e9b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling rustix v0.38.34 [INFO] [stderr] Compiling libm v0.2.8 [INFO] [stderr] Compiling linux-raw-sys v0.4.14 [INFO] [stderr] Compiling bitflags v2.5.0 [INFO] [stderr] Compiling fastrand v2.1.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling cfg_rust_features v0.1.2 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling ralgo-test-util v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling regex-syntax v0.8.4 [INFO] [stderr] Compiling unarray v0.1.4 [INFO] [stderr] Compiling proconio v0.4.5 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling stdio-override v0.1.3 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand_xorshift v0.3.0 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling tempfile v3.10.1 [INFO] [stderr] Compiling rusty-fork v0.3.0 [INFO] [stderr] Compiling proptest v1.4.0 [INFO] [stdout] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | rust_comp_feature = "unstable_features", [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see 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: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:24:11 [INFO] [stdout] | [INFO] [stdout] 24 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:30:11 [INFO] [stdout] | [INFO] [stdout] 30 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.54s [INFO] running `Command { std: "docker" "inspect" "36b6062bce9916534287e32941f0a49f590e61d816f2b4e7b78dc1263daa5e9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36b6062bce9916534287e32941f0a49f590e61d816f2b4e7b78dc1263daa5e9b", kill_on_drop: false }` [INFO] [stdout] 36b6062bce9916534287e32941f0a49f590e61d816f2b4e7b78dc1263daa5e9b [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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] af1dfaa73cad81187fd849367e819586ca55f82bd0793b967efd326e7b8b418a [INFO] running `Command { std: "docker" "start" "-a" "af1dfaa73cad81187fd849367e819586ca55f82bd0793b967efd326e7b8b418a", kill_on_drop: false }` [INFO] [stdout] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | rust_comp_feature = "unstable_features", [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see 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: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:24:11 [INFO] [stdout] | [INFO] [stdout] 24 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:30:11 [INFO] [stdout] | [INFO] [stdout] 30 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling ralgo-test-util v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | rust_comp_feature = "unstable_features", [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see 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: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:24:11 [INFO] [stdout] | [INFO] [stdout] 24 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stdout] --> src/lib.rs:30:11 [INFO] [stdout] | [INFO] [stdout] 30 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.95s [INFO] running `Command { std: "docker" "inspect" "af1dfaa73cad81187fd849367e819586ca55f82bd0793b967efd326e7b8b418a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af1dfaa73cad81187fd849367e819586ca55f82bd0793b967efd326e7b8b418a", kill_on_drop: false }` [INFO] [stdout] af1dfaa73cad81187fd849367e819586ca55f82bd0793b967efd326e7b8b418a [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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c6a432f48b5b6e24d1b826e88117ab1f6c1902e82d1b860ec6737107256a2268 [INFO] running `Command { std: "docker" "start" "-a" "c6a432f48b5b6e24d1b826e88117ab1f6c1902e82d1b860ec6737107256a2268", kill_on_drop: false }` [INFO] [stderr] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stderr] --> src/lib.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | rust_comp_feature = "unstable_features", [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stderr] --> src/lib.rs:24:11 [INFO] [stderr] | [INFO] [stderr] 24 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: unexpected `cfg` condition name: `rust_comp_feature` [INFO] [stderr] --> src/lib.rs:30:11 [INFO] [stderr] | [INFO] [stderr] 30 | #[cfg(rust_comp_feature = "unstable_features")] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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(rust_comp_feature, values("unstable_features"))'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(rust_comp_feature, values(\"unstable_features\"))");` to the top of the `build.rs` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] [INFO] [stderr] warning: `ralgo-test-util` (lib) generated 3 warnings [INFO] [stderr] warning: `ralgo-test-util` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ralgo_test_util-d35626d9dc0b4f1c) [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test tests::test_stdout ... ok [INFO] [stdout] test tests::test_stdio ... ok [INFO] [stdout] test tests::test_success ... ok [INFO] [stdout] test tests::test_stdin ... ok [INFO] [stdout] test tests::test_runtime_error ... ok [INFO] [stdout] test tests::proptest_features::test_failure - should panic ... ok [INFO] [stdout] test tests::proptest_features::prop_assert ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s [INFO] [stdout] [INFO] [stderr] Running tests/proptest.rs (/opt/rustwide/target/debug/deps/proptest-dfe9671acc75c7f9) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test ac_vs_wa - should panic ... ok [INFO] [stdout] test locate_re - should panic ... ok [INFO] [stdout] test ac_vs_ac ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s [INFO] [stdout] [INFO] [stderr] Doc-tests ralgo_test_util [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" "c6a432f48b5b6e24d1b826e88117ab1f6c1902e82d1b860ec6737107256a2268", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6a432f48b5b6e24d1b826e88117ab1f6c1902e82d1b860ec6737107256a2268", kill_on_drop: false }` [INFO] [stdout] c6a432f48b5b6e24d1b826e88117ab1f6c1902e82d1b860ec6737107256a2268