[INFO] fetching crate reservoir-sampling 0.5.1...
[INFO] checking reservoir-sampling-0.5.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate reservoir-sampling 0.5.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate reservoir-sampling 0.5.1 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] started tweaking crates.io crate reservoir-sampling 0.5.1
[INFO] finished tweaking crates.io crate reservoir-sampling 0.5.1
[INFO] tweaked toml for crates.io crate reservoir-sampling 0.5.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate reservoir-sampling 0.5.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f023a75231e55c75797ceb303c329d9fc3ad1a034826f55f050b6cc9d8d5cd64
[INFO] running `Command { std: "docker" "start" "-a" "f023a75231e55c75797ceb303c329d9fc3ad1a034826f55f050b6cc9d8d5cd64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f023a75231e55c75797ceb303c329d9fc3ad1a034826f55f050b6cc9d8d5cd64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f023a75231e55c75797ceb303c329d9fc3ad1a034826f55f050b6cc9d8d5cd64", kill_on_drop: false }`
[INFO] [stdout] f023a75231e55c75797ceb303c329d9fc3ad1a034826f55f050b6cc9d8d5cd64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] de3c556b1fb9a3786b1b827234861c6bd7420601ce4161e734b7c02b44d0add2
[INFO] running `Command { std: "docker" "start" "-a" "de3c556b1fb9a3786b1b827234861c6bd7420601ce4161e734b7c02b44d0add2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking reservoir-sampling v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `mean`
[INFO] [stdout]  --> tests/common/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn mean(arr: &[usize]) -> usize {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> tests/common/mod.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn run (max_tests: usize, f: fn(Range<usize>, &mut [usize]) ) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.52s
[INFO] running `Command { std: "docker" "inspect" "de3c556b1fb9a3786b1b827234861c6bd7420601ce4161e734b7c02b44d0add2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3c556b1fb9a3786b1b827234861c6bd7420601ce4161e734b7c02b44d0add2", kill_on_drop: false }`
[INFO] [stdout] de3c556b1fb9a3786b1b827234861c6bd7420601ce4161e734b7c02b44d0add2