[INFO] updating cached repository https://github.com/hajsf/rocket_ws_openlayers
[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] 5c6ad7f03523ea3de7df85472b06b6a570d71f08
[INFO] checking hajsf/rocket_ws_openlayers against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhajsf%2Frocket_ws_openlayers" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hajsf/rocket_ws_openlayers on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/hajsf/rocket_ws_openlayers
[INFO] finished tweaking git repo https://github.com/hajsf/rocket_ws_openlayers
[INFO] tweaked toml for git repo https://github.com/hajsf/rocket_ws_openlayers written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/hajsf/rocket_ws_openlayers already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 3b68ee76d698b17c40c14e09d034d4912080ebfd7cf79ec0a00a0d6c6b4e9205
[INFO] running `"docker" "start" "-a" "3b68ee76d698b17c40c14e09d034d4912080ebfd7cf79ec0a00a0d6c6b4e9205"`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.29
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking ws v0.8.1
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]     Checking cookie v0.11.1
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]    Compiling devise_codegen v0.2.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]    Compiling devise v0.2.0
[INFO] [stderr]    Compiling pear v0.1.2
[INFO] [stderr]    Compiling rocket_http v0.4.2
[INFO] [stderr]    Compiling rocket_codegen v0.4.2
[INFO] [stderr]     Checking rocket v0.4.2
[INFO] [stderr]     Checking rocket_contrib v0.4.2
[INFO] [stderr]     Checking ws_tracking v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `WebSocket`
[INFO] [stderr]  --> src/socket.rs:1:74
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ws::{Handler, Message, Request, Response, Result, Sender, CloseCode, WebSocket};
[INFO] [stderr]   |                                                                          ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `WebSocket`
[INFO] [stderr]  --> src/socket.rs:1:74
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ws::{Handler, Message, Request, Response, Result, Sender, CloseCode, WebSocket};
[INFO] [stderr]   |                                                                          ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut ws = ws::WebSocket::new(|out| Server { out }).unwrap();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut ws = ws::WebSocket::new(|out| Server { out }).unwrap();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `"docker" "inspect" "3b68ee76d698b17c40c14e09d034d4912080ebfd7cf79ec0a00a0d6c6b4e9205"`
[INFO] running `"docker" "rm" "-f" "3b68ee76d698b17c40c14e09d034d4912080ebfd7cf79ec0a00a0d6c6b4e9205"`
[INFO] [stdout] 3b68ee76d698b17c40c14e09d034d4912080ebfd7cf79ec0a00a0d6c6b4e9205