[INFO] fetching crate viperus 0.1.10...
[INFO] checking viperus-0.1.10 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate viperus 0.1.10 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate viperus 0.1.10 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate viperus 0.1.10
[INFO] finished tweaking crates.io crate viperus 0.1.10
[INFO] tweaked toml for crates.io crate viperus 0.1.10 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate viperus 0.1.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14a73d85cce9665b049f97b96843f0b7a12b880edb2322744ece53ebd4c1b38a
[INFO] running `Command { std: "docker" "start" "-a" "14a73d85cce9665b049f97b96843f0b7a12b880edb2322744ece53ebd4c1b38a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14a73d85cce9665b049f97b96843f0b7a12b880edb2322744ece53ebd4c1b38a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14a73d85cce9665b049f97b96843f0b7a12b880edb2322744ece53ebd4c1b38a", kill_on_drop: false }`
[INFO] [stdout] 14a73d85cce9665b049f97b96843f0b7a12b880edb2322744ece53ebd4c1b38a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 203d5bc1fdc4766a84c9663f111c1c39da82a55c7dcf949eefc735c69a041f16
[INFO] running `Command { std: "docker" "start" "-a" "203d5bc1fdc4766a84c9663f111c1c39da82a55c7dcf949eefc735c69a041f16", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking inotify v0.7.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking rand_core v0.5.1
[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]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking java-properties v1.2.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking bstr v0.2.9
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking csv v1.1.2
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking viperus v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/global.rs:18:60
[INFO] [stdout]    |
[INFO] [stdout] 18 |     static ref VIPERUS: Arc::<Mutex::<Viperus<'static>>> = { Arc::new(Mutex::new(Viperus::new())) };
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/global.rs:18:60
[INFO] [stdout]    |
[INFO] [stdout] 18 |     static ref VIPERUS: Arc::<Mutex::<Viperus<'static>>> = { Arc::new(Mutex::new(Viperus::new())) };
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.39s
[INFO] running `Command { std: "docker" "inspect" "203d5bc1fdc4766a84c9663f111c1c39da82a55c7dcf949eefc735c69a041f16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "203d5bc1fdc4766a84c9663f111c1c39da82a55c7dcf949eefc735c69a041f16", kill_on_drop: false }`
[INFO] [stdout] 203d5bc1fdc4766a84c9663f111c1c39da82a55c7dcf949eefc735c69a041f16