[INFO] updating cached repository https://github.com/mre/maxminddb-rust-bench
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ba631f8d4ce961a79320c061b2bf715a8e73809c
[INFO] checking mre/maxminddb-rust-bench against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmre%2Fmaxminddb-rust-bench" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mre/maxminddb-rust-bench on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mre/maxminddb-rust-bench
[INFO] finished tweaking git repo https://github.com/mre/maxminddb-rust-bench
[INFO] tweaked toml for git repo https://github.com/mre/maxminddb-rust-bench written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/mre/maxminddb-rust-bench already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8c806b5e034fba5f36ca652fb8e32b6ad95efededcf94ca1872ce93eeec6053d
[INFO] running `"docker" "start" "-a" "8c806b5e034fba5f36ca652fb8e32b6ad95efededcf94ca1872ce93eeec6053d"`
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking maxminddb v0.13.0
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking fake v2.2.0
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Checking maxminddb_rust_bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `criterion::black_box`
[INFO] [stderr]  --> benches/maxminddb.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use criterion::black_box;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `city`
[INFO] [stderr]   --> benches/maxminddb.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let city: Result<geoip2::City, _> = reader.lookup(*ip);
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_city`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `city`
[INFO] [stderr]   --> benches/maxminddb.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let city: Result<geoip2::City, _> = reader.lookup(*ip);
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_city`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.35s
[INFO] running `"docker" "inspect" "8c806b5e034fba5f36ca652fb8e32b6ad95efededcf94ca1872ce93eeec6053d"`
[INFO] running `"docker" "rm" "-f" "8c806b5e034fba5f36ca652fb8e32b6ad95efededcf94ca1872ce93eeec6053d"`
[INFO] [stdout] 8c806b5e034fba5f36ca652fb8e32b6ad95efededcf94ca1872ce93eeec6053d