[INFO] fetching crate coupe 0.1.0...
[INFO] checking coupe-0.1.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate coupe 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate coupe 0.1.0
[INFO] finished tweaking crates.io crate coupe 0.1.0
[INFO] tweaked toml for crates.io crate coupe 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate coupe 0.1.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate coupe 0.1.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-chrome v0.4.0
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[INFO] [stderr]   Downloaded num-bigint v0.4.2
[INFO] [stderr]   Downloaded proptest v1.0.0
[INFO] [stderr]   Downloaded criterion v0.3.5
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[INFO] [stderr]   Downloaded sprs v0.11.0
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[INFO] [stderr]   Downloaded syn v1.0.77
[INFO] [stderr]   Downloaded libc v0.2.103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de4d3f06833bbcbead89d5b02f973d71411e87b0e0bd324a928d0c16630e4605
[INFO] running `Command { std: "docker" "start" "-a" "de4d3f06833bbcbead89d5b02f973d71411e87b0e0bd324a928d0c16630e4605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de4d3f06833bbcbead89d5b02f973d71411e87b0e0bd324a928d0c16630e4605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4d3f06833bbcbead89d5b02f973d71411e87b0e0bd324a928d0c16630e4605", kill_on_drop: false }`
[INFO] [stdout] de4d3f06833bbcbead89d5b02f973d71411e87b0e0bd324a928d0c16630e4605
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a065fccab9f217d03169ab59e70383aca337b56156a055ef3c3a64022eb0ecf8
[INFO] running `Command { std: "docker" "start" "-a" "a065fccab9f217d03169ab59e70383aca337b56156a055ef3c3a64022eb0ecf8", kill_on_drop: false }`
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[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
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[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling typenum v1.14.0
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[INFO] [stderr]     Checking nalgebra v0.29.0
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking coupe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `hilbert` is never read
[INFO] [stdout]   --> src/algorithms/k_means.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct BalancedKmeansSettings {
[INFO] [stdout]    |            ---------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub hilbert: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BalancedKmeansSettings` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `hilbert` is never read
[INFO] [stdout]   --> src/algorithms/k_means.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct BalancedKmeansSettings {
[INFO] [stdout]    |            ---------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub hilbert: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BalancedKmeansSettings` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.33s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "a065fccab9f217d03169ab59e70383aca337b56156a055ef3c3a64022eb0ecf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a065fccab9f217d03169ab59e70383aca337b56156a055ef3c3a64022eb0ecf8", kill_on_drop: false }`
[INFO] [stdout] a065fccab9f217d03169ab59e70383aca337b56156a055ef3c3a64022eb0ecf8