[INFO] updating cached repository https://github.com/haze/lightspeed
[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] 83f47a66b4ec84140d8bc60b36181aadfb14515f
[INFO] checking haze/lightspeed against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaze%2Flightspeed" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/haze/lightspeed on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/haze/lightspeed
[INFO] finished tweaking git repo https://github.com/haze/lightspeed
[INFO] tweaked toml for git repo https://github.com/haze/lightspeed written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/haze/lightspeed already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] e8cdc02c69ef86d816335edfc98050efd80a4d93e40a25214f4e8564b3856d53
[INFO] running `"docker" "start" "-a" "e8cdc02c69ef86d816335edfc98050efd80a4d93e40a25214f4e8564b3856d53"`
[INFO] [stderr]    Compiling metrics v0.12.1
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]     Checking metrics-core v0.5.2
[INFO] [stderr]    Compiling isahc v0.8.2
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]     Checking libz-sys v1.0.25
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]    Compiling backtrace v0.3.45
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling regex v1.3.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]     Checking dawn-command-parser v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking serde-mappable-seq v0.1.0
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking dawn-model v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-tungstenite v0.10.1 (https://github.com/snapview/tokio-tungstenite.git#1a2a99a7)
[INFO] [stderr]     Checking h2 v0.2.2
[INFO] [stderr]     Checking hyper v0.13.3
[INFO] [stderr]     Checking http-client v1.1.1
[INFO] [stderr]    Compiling leptonica-sys v0.2.1
[INFO] [stderr]    Compiling tesseract-sys v0.4.1
[INFO] [stderr]     Checking surf v2.0.0-alpha.0
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]     Checking dawn-cache-trait v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking dawn-http v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking dawn-gateway v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking dawn-cache-inmemory v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking dawn-cache v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking dawn v0.1.0 (https://github.com/haze/dawn.git#3c0d0d27)
[INFO] [stderr]     Checking leptess v0.8.1
[INFO] [stderr]     Checking lightspeed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]  --> src/main.rs:1:23
[INFO] [stderr]   |
[INFO] [stderr] 1 | use async_std::sync::{Arc, Mutex};
[INFO] [stderr]   |                       ^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MutexError`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     MutexError,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc`, `Mutex`
[INFO] [stderr]  --> src/main.rs:1:23
[INFO] [stderr]   |
[INFO] [stderr] 1 | use async_std::sync::{Arc, Mutex};
[INFO] [stderr]   |                       ^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MutexError`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     MutexError,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 10s
[INFO] running `"docker" "inspect" "e8cdc02c69ef86d816335edfc98050efd80a4d93e40a25214f4e8564b3856d53"`
[INFO] running `"docker" "rm" "-f" "e8cdc02c69ef86d816335edfc98050efd80a4d93e40a25214f4e8564b3856d53"`
[INFO] [stdout] e8cdc02c69ef86d816335edfc98050efd80a4d93e40a25214f4e8564b3856d53