[INFO] fetching crate prop-check-rs 0.0.3...
[INFO] checking prop-check-rs-0.0.3 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate prop-check-rs 0.0.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate prop-check-rs 0.0.3 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking crates.io crate prop-check-rs 0.0.3
[INFO] finished tweaking crates.io crate prop-check-rs 0.0.3
[INFO] tweaked toml for crates.io crate prop-check-rs 0.0.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate prop-check-rs 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a63dd54206953e2d9f043b30a989b74bbfe8d1090b95156ba08a241c992fa21
[INFO] running `Command { std: "docker" "start" "-a" "9a63dd54206953e2d9f043b30a989b74bbfe8d1090b95156ba08a241c992fa21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a63dd54206953e2d9f043b30a989b74bbfe8d1090b95156ba08a241c992fa21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a63dd54206953e2d9f043b30a989b74bbfe8d1090b95156ba08a241c992fa21", kill_on_drop: false }`
[INFO] [stdout] 9a63dd54206953e2d9f043b30a989b74bbfe8d1090b95156ba08a241c992fa21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c0f7d549c349a15fd3503139bdadd52000d904d6304e4ff49cfaa795b322313
[INFO] running `Command { std: "docker" "start" "-a" "2c0f7d549c349a15fd3503139bdadd52000d904d6304e4ff49cfaa795b322313", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]     Checking iso-4217 v0.1.0
[INFO] [stderr]     Checking rust-fp-categories v0.0.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking bigdecimal v0.2.0
[INFO] [stderr]     Checking prop-check-rs v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Level`, `debug`, `error`, `log_enabled`
[INFO] [stdout]    --> src/prop.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |   use log::{debug, error, info, log_enabled, Level};
[INFO] [stdout]     |             ^^^^^  ^^^^^        ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]    --> src/prop.rs:181:7
[INFO] [stdout]     |
[INFO] [stdout] 181 |       counter += 1;
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Coin`
[INFO] [stdout]  --> src/machine.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   Coin,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Turn`
[INFO] [stdout]  --> src/machine.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Turn,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `simulate_machine`
[INFO] [stdout]   --> src/machine.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |   fn simulate_machine(inputs: Vec<Input>) -> State<Machine, (i32, i32)> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/machine.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 |   fn update() -> Box<dyn Fn(Input) -> Box<dyn Fn(Machine) -> Machine>> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_fill_with` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_fill_with)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[feature(clone_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[feature(clone_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/rng.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 249 |         if i + (n - 1) - m >= 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_fill_with` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_fill_with)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[feature(clone_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[feature(clone_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/rng.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 249 |         if i + (n - 1) - m >= 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Level`, `debug`, `error`, `log_enabled`
[INFO] [stdout]    --> src/prop.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |   use log::{debug, error, info, log_enabled, Level};
[INFO] [stdout]     |             ^^^^^  ^^^^^        ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]    --> src/prop.rs:181:7
[INFO] [stdout]     |
[INFO] [stdout] 181 |       counter += 1;
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_of_n`
[INFO] [stdout]   --> src/gen.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn list_of_n<B, GF>(n: usize, mut g: GF) -> Gen<Vec<B>>
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `one`
[INFO] [stdout]   --> src/gen.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |   pub fn one<T: One>() -> Gen<T> {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `one_of_vec`
[INFO] [stdout]   --> src/gen.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 |   pub fn one_of_vec<T: Choose + Clone + 'static>(values: Vec<T>) -> Gen<T> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `choose`
[INFO] [stdout]    --> src/gen.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 |   pub fn choose<T: Choose>(min: T, max: T) -> Gen<T> {
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `even`
[INFO] [stdout]    --> src/gen.rs:180:10
[INFO] [stdout]     |
[INFO] [stdout] 180 |   pub fn even<T: Choose + Num + Copy + 'static>(start: T, stop_exclusive: T) -> Gen<T> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `odd`
[INFO] [stdout]    --> src/gen.rs:193:10
[INFO] [stdout]     |
[INFO] [stdout] 193 |   pub fn odd<T: Choose + Num + Copy + 'static>(start: T, stop_exclusive: T) -> Gen<T> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit`
[INFO] [stdout]    --> src/gen.rs:212:10
[INFO] [stdout]     |
[INFO] [stdout] 212 |   pub fn unit<B, F>(mut f: F) -> Gen<B>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fmap2`
[INFO] [stdout]    --> src/gen.rs:230:10
[INFO] [stdout]     |
[INFO] [stdout] 230 |   pub fn fmap2<B, C, F>(self, g: Gen<B>, f: F) -> Gen<C>
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind`
[INFO] [stdout]    --> src/gen.rs:239:10
[INFO] [stdout]     |
[INFO] [stdout] 239 |   pub fn bind<B, F>(self, mut f: F) -> Gen<B>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Coin`
[INFO] [stdout]  --> src/machine.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   Coin,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Turn`
[INFO] [stdout]  --> src/machine.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Turn,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `simulate_machine`
[INFO] [stdout]   --> src/machine.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |   fn simulate_machine(inputs: Vec<Input>) -> State<Machine, (i32, i32)> {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/machine.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 |   fn update() -> Box<dyn Fn(Input) -> Box<dyn Fn(Machine) -> Machine>> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `MaxSize`
[INFO] [stdout]  --> src/prop.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub type MaxSize = u32;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `TestCases`
[INFO] [stdout]   --> src/prop.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub type TestCases = u32;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Passed`
[INFO] [stdout]   --> src/prop.rs:20:3
[INFO] [stdout]    |
[INFO] [stdout] 20 |   Passed,
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Falsified`
[INFO] [stdout]   --> src/prop.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | /   Falsified {
[INFO] [stdout] 22 | |     failure: FailedCase,
[INFO] [stdout] 23 | |     successes: SuccessCount,
[INFO] [stdout] 24 | |   },
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Proved`
[INFO] [stdout]   --> src/prop.rs:25:3
[INFO] [stdout]    |
[INFO] [stdout] 25 |   Proved,
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `random_stream`
[INFO] [stdout]   --> src/prop.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn random_stream<A, GF>(mut g: GF, rng: RNG) -> Unfold<RNG, Box<dyn FnMut(&mut RNG) -> Option<A>>>
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `for_all`
[INFO] [stdout]   --> src/prop.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn for_all<A, GF, F>(g: GF, mut f: F) -> Prop
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_with_prop`
[INFO] [stdout]   --> src/prop.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn run_with_prop(p: Prop, max_size: MaxSize, test_cases: TestCases, rng: RNG) -> Result<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_with_prop`
[INFO] [stdout]   --> src/prop.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn test_with_prop(p: Prop, max_size: MaxSize, test_cases: TestCases, rng: RNG) -> Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Prop`
[INFO] [stdout]    --> src/prop.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub struct Prop {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/prop.rs:116:10
[INFO] [stdout]     |
[INFO] [stdout] 116 |   pub fn run(self, max_size: MaxSize, test_cases: TestCases, rng: RNG) -> PropResult {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tag`
[INFO] [stdout]    --> src/prop.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 120 |   pub fn tag(self, msg: String) -> Prop {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `and`
[INFO] [stdout]    --> src/prop.rs:135:10
[INFO] [stdout]     |
[INFO] [stdout] 135 |   pub fn and(self, p: Self) -> Prop {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `or`
[INFO] [stdout]    --> src/prop.rs:146:10
[INFO] [stdout]     |
[INFO] [stdout] 146 |   pub fn or(self, p: Self) -> Prop {
[INFO] [stdout]     |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DynRand`
[INFO] [stdout]   --> src/rng.rs:95:1
[INFO] [stdout]    |
[INFO] [stdout] 95 | type DynRand<A> = dyn FnMut(RNG) -> (A, RNG);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BoxRand`
[INFO] [stdout]   --> src/rng.rs:96:1
[INFO] [stdout]    |
[INFO] [stdout] 96 | type BoxRand<A> = Box<DynRand<A>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_seed`
[INFO] [stdout]    --> src/rng.rs:136:10
[INFO] [stdout]     |
[INFO] [stdout] 136 |   pub fn with_seed(&mut self, seed: i64) {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `i32_f32`
[INFO] [stdout]    --> src/rng.rs:140:10
[INFO] [stdout]     |
[INFO] [stdout] 140 |   pub fn i32_f32(&self) -> ((i32, f32), Self) {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f32_i32`
[INFO] [stdout]    --> src/rng.rs:146:10
[INFO] [stdout]     |
[INFO] [stdout] 146 |   pub fn f32_i32(&self) -> ((f32, i32), Self) {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f32_3`
[INFO] [stdout]    --> src/rng.rs:151:10
[INFO] [stdout]     |
[INFO] [stdout] 151 |   pub fn f32_3(&self) -> ((f32, f32, f32), Self) {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit`
[INFO] [stdout]    --> src/rng.rs:171:10
[INFO] [stdout]     |
[INFO] [stdout] 171 |   pub fn unit<A: Clone + 'static>(a: A) -> BoxRand<A> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sequence`
[INFO] [stdout]    --> src/rng.rs:175:10
[INFO] [stdout]     |
[INFO] [stdout] 175 |   pub fn sequence<A: Clone + 'static, F: 'static>(fs: Vec<F>) -> BoxRand<Vec<A>>
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `int_value`
[INFO] [stdout]    --> src/rng.rs:188:10
[INFO] [stdout]     |
[INFO] [stdout] 188 |   pub fn int_value() -> BoxRand<i32> {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `double_value`
[INFO] [stdout]    --> src/rng.rs:192:10
[INFO] [stdout]     |
[INFO] [stdout] 192 |   pub fn double_value() -> BoxRand<f32> {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map`
[INFO] [stdout]    --> src/rng.rs:196:10
[INFO] [stdout]     |
[INFO] [stdout] 196 |   pub fn map<A, B, F1: 'static, F2: 'static>(mut s: F1, mut f: F2) -> BoxRand<B>
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map2`
[INFO] [stdout]    --> src/rng.rs:206:10
[INFO] [stdout]     |
[INFO] [stdout] 206 |   pub fn map2<F1: 'static, F2: 'static, F3: 'static, A, B, C>(mut ra: F1, mut rb: F2, mut f: F3) -> BoxRand<C>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `both`
[INFO] [stdout]    --> src/rng.rs:218:10
[INFO] [stdout]     |
[INFO] [stdout] 218 |   pub fn both<F1: 'static, F2: 'static, A, B>(ra: F1, rb: F2) -> BoxRand<(A, B)>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rand_int_double`
[INFO] [stdout]    --> src/rng.rs:225:10
[INFO] [stdout]     |
[INFO] [stdout] 225 |   pub fn rand_int_double() -> BoxRand<(i32, f32)> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rand_double_int`
[INFO] [stdout]    --> src/rng.rs:229:10
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pub fn rand_double_int<'a>() -> BoxRand<(f32, i32)> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flat_map`
[INFO] [stdout]    --> src/rng.rs:233:10
[INFO] [stdout]     |
[INFO] [stdout] 233 |   pub fn flat_map<A, B, F: 'static, GF: 'static, BF>(mut f: F, mut g: GF) -> BoxRand<B>
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `non_negative_less_than`
[INFO] [stdout]    --> src/rng.rs:244:10
[INFO] [stdout]     |
[INFO] [stdout] 244 |   pub fn non_negative_less_than(n: u32) -> BoxRand<u32> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit`
[INFO] [stdout]  --> src/state.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |   pub fn unit(a: A) -> State<S, A> {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fmap2`
[INFO] [stdout]   --> src/state.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn fmap2<B, C, F>(self, sb: State<S, B>, f: F) -> State<S, C>
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `modify`
[INFO] [stdout]   --> src/state.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |   pub fn modify<T, F>(f: F) -> State<T, ()>
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/state.rs:60:10
[INFO] [stdout]    |
[INFO] [stdout] 60 |   pub fn get<T>() -> State<T, T>
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/state.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 |   pub fn set<T>(t: T) -> State<T, ()>
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sequence`
[INFO] [stdout]   --> src/state.rs:72:10
[INFO] [stdout]    |
[INFO] [stdout] 72 |   pub fn sequence(sas: Vec<State<S, A>>) -> State<S, Vec<A>> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/rng.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 249 |         if i + (n - 1) - m >= 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `list_of_n`
[INFO] [stdout]   --> src/gen.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn list_of_n<B, GF>(n: usize, mut g: GF) -> Gen<Vec<B>>
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `one`
[INFO] [stdout]   --> src/gen.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |   pub fn one<T: One>() -> Gen<T> {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `even`
[INFO] [stdout]    --> src/gen.rs:180:10
[INFO] [stdout]     |
[INFO] [stdout] 180 |   pub fn even<T: Choose + Num + Copy + 'static>(start: T, stop_exclusive: T) -> Gen<T> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `odd`
[INFO] [stdout]    --> src/gen.rs:193:10
[INFO] [stdout]     |
[INFO] [stdout] 193 |   pub fn odd<T: Choose + Num + Copy + 'static>(start: T, stop_exclusive: T) -> Gen<T> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit`
[INFO] [stdout]    --> src/gen.rs:212:10
[INFO] [stdout]     |
[INFO] [stdout] 212 |   pub fn unit<B, F>(mut f: F) -> Gen<B>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fmap2`
[INFO] [stdout]    --> src/gen.rs:230:10
[INFO] [stdout]     |
[INFO] [stdout] 230 |   pub fn fmap2<B, C, F>(self, g: Gen<B>, f: F) -> Gen<C>
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bind`
[INFO] [stdout]    --> src/gen.rs:239:10
[INFO] [stdout]     |
[INFO] [stdout] 239 |   pub fn bind<B, F>(self, mut f: F) -> Gen<B>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Proved`
[INFO] [stdout]   --> src/prop.rs:25:3
[INFO] [stdout]    |
[INFO] [stdout] 25 |   Proved,
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_with_prop`
[INFO] [stdout]   --> src/prop.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn run_with_prop(p: Prop, max_size: MaxSize, test_cases: TestCases, rng: RNG) -> Result<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tag`
[INFO] [stdout]    --> src/prop.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 120 |   pub fn tag(self, msg: String) -> Prop {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `and`
[INFO] [stdout]    --> src/prop.rs:135:10
[INFO] [stdout]     |
[INFO] [stdout] 135 |   pub fn and(self, p: Self) -> Prop {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `or`
[INFO] [stdout]    --> src/prop.rs:146:10
[INFO] [stdout]     |
[INFO] [stdout] 146 |   pub fn or(self, p: Self) -> Prop {
[INFO] [stdout]     |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DynRand`
[INFO] [stdout]   --> src/rng.rs:95:1
[INFO] [stdout]    |
[INFO] [stdout] 95 | type DynRand<A> = dyn FnMut(RNG) -> (A, RNG);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BoxRand`
[INFO] [stdout]   --> src/rng.rs:96:1
[INFO] [stdout]    |
[INFO] [stdout] 96 | type BoxRand<A> = Box<DynRand<A>>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_seed`
[INFO] [stdout]    --> src/rng.rs:136:10
[INFO] [stdout]     |
[INFO] [stdout] 136 |   pub fn with_seed(&mut self, seed: i64) {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `i32_f32`
[INFO] [stdout]    --> src/rng.rs:140:10
[INFO] [stdout]     |
[INFO] [stdout] 140 |   pub fn i32_f32(&self) -> ((i32, f32), Self) {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f32_i32`
[INFO] [stdout]    --> src/rng.rs:146:10
[INFO] [stdout]     |
[INFO] [stdout] 146 |   pub fn f32_i32(&self) -> ((f32, i32), Self) {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f32_3`
[INFO] [stdout]    --> src/rng.rs:151:10
[INFO] [stdout]     |
[INFO] [stdout] 151 |   pub fn f32_3(&self) -> ((f32, f32, f32), Self) {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit`
[INFO] [stdout]    --> src/rng.rs:171:10
[INFO] [stdout]     |
[INFO] [stdout] 171 |   pub fn unit<A: Clone + 'static>(a: A) -> BoxRand<A> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sequence`
[INFO] [stdout]    --> src/rng.rs:175:10
[INFO] [stdout]     |
[INFO] [stdout] 175 |   pub fn sequence<A: Clone + 'static, F: 'static>(fs: Vec<F>) -> BoxRand<Vec<A>>
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `int_value`
[INFO] [stdout]    --> src/rng.rs:188:10
[INFO] [stdout]     |
[INFO] [stdout] 188 |   pub fn int_value() -> BoxRand<i32> {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `double_value`
[INFO] [stdout]    --> src/rng.rs:192:10
[INFO] [stdout]     |
[INFO] [stdout] 192 |   pub fn double_value() -> BoxRand<f32> {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map`
[INFO] [stdout]    --> src/rng.rs:196:10
[INFO] [stdout]     |
[INFO] [stdout] 196 |   pub fn map<A, B, F1: 'static, F2: 'static>(mut s: F1, mut f: F2) -> BoxRand<B>
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `map2`
[INFO] [stdout]    --> src/rng.rs:206:10
[INFO] [stdout]     |
[INFO] [stdout] 206 |   pub fn map2<F1: 'static, F2: 'static, F3: 'static, A, B, C>(mut ra: F1, mut rb: F2, mut f: F3) -> BoxRand<C>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `both`
[INFO] [stdout]    --> src/rng.rs:218:10
[INFO] [stdout]     |
[INFO] [stdout] 218 |   pub fn both<F1: 'static, F2: 'static, A, B>(ra: F1, rb: F2) -> BoxRand<(A, B)>
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rand_int_double`
[INFO] [stdout]    --> src/rng.rs:225:10
[INFO] [stdout]     |
[INFO] [stdout] 225 |   pub fn rand_int_double() -> BoxRand<(i32, f32)> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rand_double_int`
[INFO] [stdout]    --> src/rng.rs:229:10
[INFO] [stdout]     |
[INFO] [stdout] 229 |   pub fn rand_double_int<'a>() -> BoxRand<(f32, i32)> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `flat_map`
[INFO] [stdout]    --> src/rng.rs:233:10
[INFO] [stdout]     |
[INFO] [stdout] 233 |   pub fn flat_map<A, B, F: 'static, GF: 'static, BF>(mut f: F, mut g: GF) -> BoxRand<B>
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `non_negative_less_than`
[INFO] [stdout]    --> src/rng.rs:244:10
[INFO] [stdout]     |
[INFO] [stdout] 244 |   pub fn non_negative_less_than(n: u32) -> BoxRand<u32> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unit`
[INFO] [stdout]  --> src/state.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 |   pub fn unit(a: A) -> State<S, A> {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fmap2`
[INFO] [stdout]   --> src/state.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub fn fmap2<B, C, F>(self, sb: State<S, B>, f: F) -> State<S, C>
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/rng.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 249 |         if i + (n - 1) - m >= 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 34 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "2c0f7d549c349a15fd3503139bdadd52000d904d6304e4ff49cfaa795b322313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0f7d549c349a15fd3503139bdadd52000d904d6304e4ff49cfaa795b322313", kill_on_drop: false }`
[INFO] [stdout] 2c0f7d549c349a15fd3503139bdadd52000d904d6304e4ff49cfaa795b322313