[INFO] fetching crate cardinality-estimator-safe 4.0.3...
[INFO] checking cardinality-estimator-safe-4.0.3 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] extracting crate cardinality-estimator-safe 4.0.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate cardinality-estimator-safe 4.0.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cardinality-estimator-safe 4.0.3
[INFO] tweaked toml for crates.io crate cardinality-estimator-safe 4.0.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cardinality-estimator-safe 4.0.3 on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cardinality-estimator-safe 4.0.3 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]    --> Cargo.toml:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | readme = "README.md"
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `cardinality-estimator-safe` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded cardinality-estimator v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418
[INFO] running `Command { std: "docker" "start" "b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]    --> Cargo.toml:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | readme = "README.md"
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `cardinality-estimator-safe` (manifest) generated 1 warning
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[INFO] [stderr]     Checking cardinality-estimator v1.0.2
[INFO] [stderr]     Checking cardinality-estimator-safe v4.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking test-case v3.3.1
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[INFO] [stdout] warning: method `merge` is never used
[INFO] [stdout]    --> benches/cardinality_estimator.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | trait CardinalityEstimatorTrait<T: Hash + ?Sized> {
[INFO] [stdout]     |       ------------------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn merge(&mut self, rhs: &Self);
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.84s
[INFO] running `Command { std: "docker" "inspect" "b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418", kill_on_drop: false }`
[INFO] [stdout] b88a27f66c5ba80bcde4f8341f069eb2b7a451dcaf42f5c360b94cee52889418
