[INFO] cloning repository https://github.com/dovakin0007/toy_se_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dovakin0007/toy_se_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdovakin0007%2Ftoy_se_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdovakin0007%2Ftoy_se_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29c324a408b8a952a86f9974340e86876485e4ff
[INFO] checking dovakin0007/toy_se_rust against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdovakin0007%2Ftoy_se_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dovakin0007/toy_se_rust
[INFO] finished tweaking git repo https://github.com/dovakin0007/toy_se_rust
[INFO] tweaked toml for git repo https://github.com/dovakin0007/toy_se_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dovakin0007/toy_se_rust on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dovakin0007/toy_se_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking dovakin0007/toy_se_rust against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdovakin0007%2Ftoy_se_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dovakin0007/toy_se_rust
[INFO] finished tweaking git repo https://github.com/dovakin0007/toy_se_rust
[INFO] tweaked toml for git repo https://github.com/dovakin0007/toy_se_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dovakin0007/toy_se_rust on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dovakin0007/toy_se_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xml-rs v0.8.16
[INFO] [stderr]   Downloaded chunked_transfer v1.4.1
[INFO] [stderr]   Downloaded ascii v1.1.0
[INFO] [stderr]   Downloaded tiny_http v0.12.0
[INFO] [stderr]   Downloaded serde_json v1.0.105
[INFO] [stderr]   Downloaded syn v2.0.29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b3b1c1af605e76a12c578dae89cfb9135e8f423a605d7e6a0c7958c246b2c50
[INFO] running `Command { std: "docker" "start" "-a" "6b3b1c1af605e76a12c578dae89cfb9135e8f423a605d7e6a0c7958c246b2c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b3b1c1af605e76a12c578dae89cfb9135e8f423a605d7e6a0c7958c246b2c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3b1c1af605e76a12c578dae89cfb9135e8f423a605d7e6a0c7958c246b2c50", kill_on_drop: false }`
[INFO] [stdout] 6b3b1c1af605e76a12c578dae89cfb9135e8f423a605d7e6a0c7958c246b2c50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a28546d61bbec57610d41413e9edfc3df5c6dc3a89d0a27fdcece87c3aa6240
[INFO] running `Command { std: "docker" "start" "-a" "4a28546d61bbec57610d41413e9edfc3df5c6dc3a89d0a27fdcece87c3aa6240", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking ascii v1.1.0
[INFO] [stderr]     Checking chunked_transfer v1.4.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking xml-rs v0.8.16
[INFO] [stderr]     Checking tiny_http v0.12.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking toy_se_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:194:47
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub fn serve_request(tf_index: &TermFreqIndex,mut request: Request) -> Result<(), ()>{
[INFO] [stdout]     |                                               ----^^^^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:194:47
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub fn serve_request(tf_index: &TermFreqIndex,mut request: Request) -> Result<(), ()>{
[INFO] [stdout]     |                                               ----^^^^^^^
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.48s
[INFO] running `Command { std: "docker" "inspect" "4a28546d61bbec57610d41413e9edfc3df5c6dc3a89d0a27fdcece87c3aa6240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a28546d61bbec57610d41413e9edfc3df5c6dc3a89d0a27fdcece87c3aa6240", kill_on_drop: false }`
[INFO] [stdout] 4a28546d61bbec57610d41413e9edfc3df5c6dc3a89d0a27fdcece87c3aa6240