[INFO] fetching crate proptest-arbitrary 0.2.2...
[INFO] testing proptest-arbitrary-0.2.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate proptest-arbitrary 0.2.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate proptest-arbitrary 0.2.2
[INFO] finished tweaking crates.io crate proptest-arbitrary 0.2.2
[INFO] tweaked toml for crates.io crate proptest-arbitrary 0.2.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate proptest-arbitrary 0.2.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding bit-set v0.4.0 (available: v0.8.0)
[INFO] [stderr]       Adding derive_more v0.7.1 (available: v2.0.1)
[INFO] [stderr]       Adding frunk_core v0.0.21 (available: v0.4.4)
[INFO] [stderr]       Adding frunk_derives v0.0.22 (available: v0.4.4)
[INFO] [stderr]       Adding proptest v0.3.4 (available: v1.9.0)
[INFO] [stderr]       Adding version_check v0.1.5 (available: v0.9.5)
[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] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit-set v0.4.0
[INFO] [stderr]   Downloaded proptest v0.3.4
[INFO] [stderr]   Downloaded frunk_core v0.0.21
[INFO] [stderr]   Downloaded frunk_derives v0.0.22
[INFO] [stderr]   Downloaded derive_more v0.7.1
[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] d54f0889b6fe1e04643a45073d42dce1383984f5add23ff56106396a4890a23e
[INFO] running `Command { std: "docker" "start" "-a" "d54f0889b6fe1e04643a45073d42dce1383984f5add23ff56106396a4890a23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d54f0889b6fe1e04643a45073d42dce1383984f5add23ff56106396a4890a23e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54f0889b6fe1e04643a45073d42dce1383984f5add23ff56106396a4890a23e", kill_on_drop: false }`
[INFO] [stdout] d54f0889b6fe1e04643a45073d42dce1383984f5add23ff56106396a4890a23e
[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] 6c08d6953947c27800e67ca108c0b89749c6bb06c458dddc9540f1648aea50fd
[INFO] running `Command { std: "docker" "start" "-a" "6c08d6953947c27800e67ca108c0b89749c6bb06c458dddc9540f1648aea50fd", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling frunk_core v0.0.21
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling proptest-arbitrary v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling proptest v0.3.4
[INFO] [stderr]    Compiling derive_more v0.7.1
[INFO] [stderr]    Compiling frunk_derives v0.0.22
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> src/_std/collections.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(feature="cargo-clippy", allow(implicit_hasher))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default`, `frunk`, `frunk_core`, `frunk_derives`, and `unstable`
[INFO] [stdout]   = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[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 value: `cargo-clippy`
[INFO] [stdout]   --> src/_std/cell.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[cfg_attr(feature = "cargo-clippy", allow(let_and_return))]
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default`, `frunk`, `frunk_core`, `frunk_derives`, and `unstable`
[INFO] [stdout]    = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> src/_std/cell.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |     #[cfg_attr(feature = "cargo-clippy", allow(let_and_return))]
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default`, `frunk`, `frunk_core`, `frunk_derives`, and `unstable`
[INFO] [stdout]    = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/char.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/char.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/char.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/ffi.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/ffi.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/ffi.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/_std/string.rs:148:15
[INFO] [stdout]     |
[INFO] [stdout] 148 |         0xE1u8...0xECu8 => 0x80u8..0xC0u8,
[INFO] [stdout]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/_std/string.rs:150:15
[INFO] [stdout]     |
[INFO] [stdout] 150 |         0xEEu8...0xEFu8 => 0x80u8..0xA0u8,
[INFO] [stdout]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/_std/string.rs:155:15
[INFO] [stdout]     |
[INFO] [stdout] 155 |         0xE1u8...0xECu8 => prop_oneof![start_byte..0x80u8, 0xC0u8..],
[INFO] [stdout]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/_std/string.rs:157:15
[INFO] [stdout]     |
[INFO] [stdout] 157 |         0xEEu8...0xEFu8 => prop_oneof![start_byte..0x80u8, 0xA0u8..],
[INFO] [stdout]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/_std/string.rs:162:15
[INFO] [stdout]     |
[INFO] [stdout] 162 |         0xF1u8...0xF3u8 => prop_oneof![start_byte..0x80u8, 0xA0u8..],
[INFO] [stdout]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/_std/string.rs:168:15
[INFO] [stdout]     |
[INFO] [stdout] 168 |         0xF1u8...0xF3u8 => 0x80u8..0xA0u8,
[INFO] [stdout]     |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/sync.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg(not(MIN_VER_1_24_0))]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/sync.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/sync.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[cfg(not(MIN_VER_1_24_0))]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `MIN_VER_1_24_0`
[INFO] [stdout]   --> src/_std/sync.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(MIN_VER_1_24_0)]
[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(MIN_VER_1_24_0)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(MIN_VER_1_24_0)");` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrays::*`
[INFO] [stdout]    --> src/lib.rs:493:9
[INFO] [stdout]     |
[INFO] [stdout] 493 | pub use arrays::*;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/utils.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 116 | #[derive(Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
[INFO] [stdout]     |                --------- in this derive macro expansion
[INFO] [stdout] 117 | pub struct SFnMap<I, O>(fn(I) -> O);
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/utils.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 116 | #[derive(Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
[INFO] [stdout]     |                               ---------- in this derive macro expansion
[INFO] [stdout] 117 | pub struct SFnMap<I, O>(fn(I) -> O);
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/utils.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 116 | #[derive(Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
[INFO] [stdout]     |                                           --- in this derive macro expansion
[INFO] [stdout] 117 | pub struct SFnMap<I, O>(fn(I) -> O);
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> src/_std/io.rs:86:7
[INFO] [stdout]    |
[INFO] [stdout] 86 |     ].into_iter().map(Clone::clone).map(Just))
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 86 -     ].into_iter().map(Clone::clone).map(Just))
[INFO] [stdout] 86 +     ].iter().map(Clone::clone).map(Just))
[INFO] [stdout]    |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 67 ~     IntoIterator::into_iter([ NotFound
[INFO] [stdout] 68 |     , PermissionDenied
[INFO] [stdout] ...
[INFO] [stdout] 85 |     // TODO: watch this type for variant-additions.
[INFO] [stdout] 86 ~     ]).map(Clone::clone).map(Just))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/_std/sync.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let (_, wtr) = wt.unwrap();
[INFO] [stdout]    |          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout]    = note: `#[deny(let_underscore_lock)]` (part of `#[deny(let_underscore)]`) on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let (_unused, wtr) = wt.unwrap();
[INFO] [stdout]    |           ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: non-binding let on a synchronization lock
[INFO] [stdout]   --> src/_std/sync.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let (_, wtr) = wt.unwrap();
[INFO] [stdout]    |          ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider immediately dropping the value using `drop(..)` after the `let` statement
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let (_unused, wtr) = wt.unwrap();
[INFO] [stdout]    |           ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proptest-arbitrary` (lib) due to 2 previous errors; 24 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6c08d6953947c27800e67ca108c0b89749c6bb06c458dddc9540f1648aea50fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c08d6953947c27800e67ca108c0b89749c6bb06c458dddc9540f1648aea50fd", kill_on_drop: false }`
[INFO] [stdout] 6c08d6953947c27800e67ca108c0b89749c6bb06c458dddc9540f1648aea50fd
