[INFO] fetching crate uset 0.1.0...
[INFO] checking uset-0.1.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate uset 0.1.0 into /workspace/builds/worker-50/source
[INFO] validating manifest of crates.io crate uset 0.1.0 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 uset 0.1.0
[INFO] finished tweaking crates.io crate uset 0.1.0
[INFO] tweaked toml for crates.io crate uset 0.1.0 written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 9e186f494add9d43ca62c91ac6baf547cddfd926f40faafda3ac962e3b8409ce
[INFO] running `Command { std: "docker" "start" "-a" "9e186f494add9d43ca62c91ac6baf547cddfd926f40faafda3ac962e3b8409ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e186f494add9d43ca62c91ac6baf547cddfd926f40faafda3ac962e3b8409ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e186f494add9d43ca62c91ac6baf547cddfd926f40faafda3ac962e3b8409ce", kill_on_drop: false }`
[INFO] [stdout] 9e186f494add9d43ca62c91ac6baf547cddfd926f40faafda3ac962e3b8409ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 1a5f422eaed6f0de3b4833c2190faff78208440cf75b9a028be8e7961aabbafb
[INFO] running `Command { std: "docker" "start" "-a" "1a5f422eaed6f0de3b4833c2190faff78208440cf75b9a028be8e7961aabbafb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ryu v1.0.5
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[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking rustc-serialize v0.3.24
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[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]     Checking regex-automata v0.1.10
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[INFO] [stderr]     Checking bitflags v1.3.2
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[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
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[INFO] [stderr]    Compiling num-iter v0.1.42
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[INFO] [stderr]    Compiling rustc_version v0.4.0
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[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
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[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking uset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking spectral v0.6.0
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[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_json v1.0.66
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[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: unused import: `uset::core::uset::*`
[INFO] [stdout]  --> tests/integration_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use uset::core::uset::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]  --> benches/criterion_tests.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |         b.iter({ || gen_cities_uset(1000, 75) })
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> benches/criterion_tests.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |         b.iter({ || gen_cities_hashset(1000, 75) })
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> benches/criterion_tests.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |         b.iter({ || find_city_distances(&map) })
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.09s
[INFO] running `Command { std: "docker" "inspect" "1a5f422eaed6f0de3b4833c2190faff78208440cf75b9a028be8e7961aabbafb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5f422eaed6f0de3b4833c2190faff78208440cf75b9a028be8e7961aabbafb", kill_on_drop: false }`
[INFO] [stdout] 1a5f422eaed6f0de3b4833c2190faff78208440cf75b9a028be8e7961aabbafb