[INFO] fetching crate rand_pool 0.1.3...
[INFO] building rand_pool-0.1.3 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rand_pool 0.1.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rand_pool 0.1.3
[INFO] finished tweaking crates.io crate rand_pool 0.1.3
[INFO] tweaked toml for crates.io crate rand_pool 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rand_pool 0.1.3 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rand_pool 0.1.3 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 003ab104dabe2153ffd776c138fab87c71dddbeafce70701ada3f7ccea284a90
[INFO] running `Command { std: "docker" "start" "-a" "003ab104dabe2153ffd776c138fab87c71dddbeafce70701ada3f7ccea284a90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "003ab104dabe2153ffd776c138fab87c71dddbeafce70701ada3f7ccea284a90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "003ab104dabe2153ffd776c138fab87c71dddbeafce70701ada3f7ccea284a90", kill_on_drop: false }`
[INFO] [stdout] 003ab104dabe2153ffd776c138fab87c71dddbeafce70701ada3f7ccea284a90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3415b847ee762ef795bf56b090beab33f0f53cc8fddaee39778379dcc2dc95b4
[INFO] running `Command { std: "docker" "start" "-a" "3415b847ee762ef795bf56b090beab33f0f53cc8fddaee39778379dcc2dc95b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_pool v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/rand_pool.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{array, thread};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_size` and `seed` are never read
[INFO] [stdout]   --> src/rand_pool.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct RandomNumberPool {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pool_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     array_size: usize,
[INFO] [stdout] 21 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RandomNumberPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/rand_pool.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{array, thread};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RandomNumberPool` is never constructed
[INFO] [stdout]   --> src/rand_pool.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct RandomNumberPool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fill_with_random_numbers`, `start_refiller`, `get_array`, and `release_array` are never used
[INFO] [stdout]    --> src/rand_pool.rs:25:12
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl RandomNumberPool {
[INFO] [stdout]     | --------------------- associated items in this implementation
[INFO] [stdout]  25 |     pub fn new(pool_size: usize, array_size: usize, seed: u64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |     fn fill_with_random_numbers(array: &mut Vec<f64>, rng: &Arc<Mutex<SmallRng>>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn start_refiller(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub fn get_array(&self) -> Result<(usize, Arc<Vec<f64>>), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn release_array(&self, idx: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.86s
[INFO] running `Command { std: "docker" "inspect" "3415b847ee762ef795bf56b090beab33f0f53cc8fddaee39778379dcc2dc95b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3415b847ee762ef795bf56b090beab33f0f53cc8fddaee39778379dcc2dc95b4", kill_on_drop: false }`
[INFO] [stdout] 3415b847ee762ef795bf56b090beab33f0f53cc8fddaee39778379dcc2dc95b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc65e15687a318a39299093e93281f8ff87f611fef432f9a1cc6369436329be
[INFO] running `Command { std: "docker" "start" "-a" "dbc65e15687a318a39299093e93281f8ff87f611fef432f9a1cc6369436329be", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_pool v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/rand_pool.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{array, thread};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_size` and `seed` are never read
[INFO] [stdout]   --> src/rand_pool.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct RandomNumberPool {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pool_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     array_size: usize,
[INFO] [stdout] 21 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RandomNumberPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/rand_pool.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{array, thread};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/rand_pool.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{array, thread};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RandomNumberPool` is never constructed
[INFO] [stdout]   --> src/rand_pool.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct RandomNumberPool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fill_with_random_numbers`, `start_refiller`, `get_array`, and `release_array` are never used
[INFO] [stdout]    --> src/rand_pool.rs:25:12
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl RandomNumberPool {
[INFO] [stdout]     | --------------------- associated items in this implementation
[INFO] [stdout]  25 |     pub fn new(pool_size: usize, array_size: usize, seed: u64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |     fn fill_with_random_numbers(array: &mut Vec<f64>, rng: &Arc<Mutex<SmallRng>>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     fn start_refiller(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub fn get_array(&self) -> Result<(usize, Arc<Vec<f64>>), &'static str> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn release_array(&self, idx: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_size` and `seed` are never read
[INFO] [stdout]   --> src/rand_pool.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct RandomNumberPool {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pool_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     array_size: usize,
[INFO] [stdout] 21 |     seed: u64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RandomNumberPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "dbc65e15687a318a39299093e93281f8ff87f611fef432f9a1cc6369436329be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc65e15687a318a39299093e93281f8ff87f611fef432f9a1cc6369436329be", kill_on_drop: false }`
[INFO] [stdout] dbc65e15687a318a39299093e93281f8ff87f611fef432f9a1cc6369436329be
