[INFO] fetching crate reservoir-sampling 0.5.1...
[INFO] building reservoir-sampling-0.5.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate reservoir-sampling 0.5.1 into /workspace/builds/worker-1-tc1/source
[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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate reservoir-sampling 0.5.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate reservoir-sampling 0.5.1 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.73
[INFO] [stderr]   Downloaded js-sys v0.3.50
[INFO] [stderr]   Downloaded syn v1.0.69
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]   Downloaded libc v0.2.93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1935884c666dcedfbce1211823a4c4a7f9747c884a2404a1da596c42d5d8597d
[INFO] running `Command { std: "docker" "start" "-a" "1935884c666dcedfbce1211823a4c4a7f9747c884a2404a1da596c42d5d8597d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1935884c666dcedfbce1211823a4c4a7f9747c884a2404a1da596c42d5d8597d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1935884c666dcedfbce1211823a4c4a7f9747c884a2404a1da596c42d5d8597d", kill_on_drop: false }`
[INFO] [stdout] 1935884c666dcedfbce1211823a4c4a7f9747c884a2404a1da596c42d5d8597d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2c914c06990d85200f61af437bb75c65bae4709d6e8a0dc1c8f55ba0d349419
[INFO] running `Command { std: "docker" "start" "-a" "d2c914c06990d85200f61af437bb75c65bae4709d6e8a0dc1c8f55ba0d349419", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling reservoir-sampling v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "d2c914c06990d85200f61af437bb75c65bae4709d6e8a0dc1c8f55ba0d349419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2c914c06990d85200f61af437bb75c65bae4709d6e8a0dc1c8f55ba0d349419", kill_on_drop: false }`
[INFO] [stdout] d2c914c06990d85200f61af437bb75c65bae4709d6e8a0dc1c8f55ba0d349419
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce49c4b5ffd7c29f118f82f75b161f26c88a886c89a4f6fe2ece0d8656468e4a
[INFO] running `Command { std: "docker" "start" "-a" "ce49c4b5ffd7c29f118f82f75b161f26c88a886c89a4f6fe2ece0d8656468e4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling reservoir-sampling v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `mean` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "ce49c4b5ffd7c29f118f82f75b161f26c88a886c89a4f6fe2ece0d8656468e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce49c4b5ffd7c29f118f82f75b161f26c88a886c89a4f6fe2ece0d8656468e4a", kill_on_drop: false }`
[INFO] [stdout] ce49c4b5ffd7c29f118f82f75b161f26c88a886c89a4f6fe2ece0d8656468e4a