[INFO] cloning repository https://github.com/ltchang2019/Rust-HTTP-Proxy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ltchang2019/Rust-HTTP-Proxy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fltchang2019%2FRust-HTTP-Proxy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fltchang2019%2FRust-HTTP-Proxy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7dc0884ccf7fcdb308b71a343f0f88d3a09b03ab
[INFO] checking ltchang2019/Rust-HTTP-Proxy against master#4e1f5d90bca45207605a88e39b1f76abcdb85d2f for pr-123962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fltchang2019%2FRust-HTTP-Proxy" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ltchang2019/Rust-HTTP-Proxy on toolchain 4e1f5d90bca45207605a88e39b1f76abcdb85d2f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e1f5d90bca45207605a88e39b1f76abcdb85d2f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ltchang2019/Rust-HTTP-Proxy
[INFO] finished tweaking git repo https://github.com/ltchang2019/Rust-HTTP-Proxy
[INFO] tweaked toml for git repo https://github.com/ltchang2019/Rust-HTTP-Proxy written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ltchang2019/Rust-HTTP-Proxy 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" "+4e1f5d90bca45207605a88e39b1f76abcdb85d2f" "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
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking ltchang2019/Rust-HTTP-Proxy against try#035f40fb95ac1c79b50f07e65650460f3d11e207 for pr-123962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fltchang2019%2FRust-HTTP-Proxy" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ltchang2019/Rust-HTTP-Proxy on toolchain 035f40fb95ac1c79b50f07e65650460f3d11e207
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+035f40fb95ac1c79b50f07e65650460f3d11e207" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ltchang2019/Rust-HTTP-Proxy
[INFO] finished tweaking git repo https://github.com/ltchang2019/Rust-HTTP-Proxy
[INFO] tweaked toml for git repo https://github.com/ltchang2019/Rust-HTTP-Proxy written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ltchang2019/Rust-HTTP-Proxy 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" "+035f40fb95ac1c79b50f07e65650460f3d11e207" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking ltchang2019/Rust-HTTP-Proxy against try#035f40fb95ac1c79b50f07e65650460f3d11e207 for pr-123962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fltchang2019%2FRust-HTTP-Proxy" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ltchang2019/Rust-HTTP-Proxy on toolchain 035f40fb95ac1c79b50f07e65650460f3d11e207
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+035f40fb95ac1c79b50f07e65650460f3d11e207" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ltchang2019/Rust-HTTP-Proxy
[INFO] finished tweaking git repo https://github.com/ltchang2019/Rust-HTTP-Proxy
[INFO] tweaked toml for git repo https://github.com/ltchang2019/Rust-HTTP-Proxy written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ltchang2019/Rust-HTTP-Proxy 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" "+035f40fb95ac1c79b50f07e65650460f3d11e207" "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 dns-lookup v1.0.5
[INFO] [stderr]   Downloaded socket2 v0.3.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+035f40fb95ac1c79b50f07e65650460f3d11e207" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a8bced679a94ed55f60a10cc9a1d191a070e930fcb9a3a0670259ed9eb7f486
[INFO] running `Command { std: "docker" "start" "-a" "6a8bced679a94ed55f60a10cc9a1d191a070e930fcb9a3a0670259ed9eb7f486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a8bced679a94ed55f60a10cc9a1d191a070e930fcb9a3a0670259ed9eb7f486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8bced679a94ed55f60a10cc9a1d191a070e930fcb9a3a0670259ed9eb7f486", kill_on_drop: false }`
[INFO] [stdout] 6a8bced679a94ed55f60a10cc9a1d191a070e930fcb9a3a0670259ed9eb7f486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+035f40fb95ac1c79b50f07e65650460f3d11e207" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33eb9b84b6a637e3ce59495878243bb7383e9b2cae5f9676867adea2eb91f92d
[INFO] running `Command { std: "docker" "start" "-a" "33eb9b84b6a637e3ce59495878243bb7383e9b2cae5f9676867adea2eb91f92d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking http v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.3.18
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking dns-lookup v1.0.5
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking http-proxy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `copy`
[INFO] [stdout]  --> src/cache.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{File, copy, read, create_dir_all}, path::{Path}, sync::{Mutex, Arc}};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `httparse`
[INFO] [stdout]  --> src/cache.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use httparse;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `handler`
[INFO] [stdout]  --> src/cache.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::{utils, handler};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `copy`
[INFO] [stdout]  --> src/cache.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{File, copy, read, create_dir_all}, path::{Path}, sync::{Mutex, Arc}};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `httparse`
[INFO] [stdout]  --> src/cache.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use httparse;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `handler`
[INFO] [stdout]  --> src/cache.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::{utils, handler};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/handler.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 Err(e) => {}
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/handler.rs:71:47
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn handle_post(mut req: Request<Vec<u8>>, data: ProxyData, client_conn: &mut TcpStream) {
[INFO] [stdout]    |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/handler.rs:83:47
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn handle_head(mut req: Request<Vec<u8>>, data: ProxyData, client_conn: &mut TcpStream) {
[INFO] [stdout]    |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/handler.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 Err(e) => {}
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/handler.rs:71:47
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn handle_post(mut req: Request<Vec<u8>>, data: ProxyData, client_conn: &mut TcpStream) {
[INFO] [stdout]    |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/handler.rs:83:47
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn handle_head(mut req: Request<Vec<u8>>, data: ProxyData, client_conn: &mut TcpStream) {
[INFO] [stdout]    |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_locks` is never read
[INFO] [stdout]   --> src/cache.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct HTTPCache {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     dir_path: String,
[INFO] [stdout] 11 |     file_locks: Vec<Arc<Mutex<()>>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/proxy.rs:24:43
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 Ok((client_conn, _)) => { &self.handler.service_req(client_conn); },
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 Ok((client_conn, _)) => { let _ = &self.handler.service_req(client_conn); },
[INFO] [stdout]    |                                           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_locks` is never read
[INFO] [stdout]   --> src/cache.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct HTTPCache {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     dir_path: String,
[INFO] [stdout] 11 |     file_locks: Vec<Arc<Mutex<()>>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/proxy.rs:24:43
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 Ok((client_conn, _)) => { &self.handler.service_req(client_conn); },
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 Ok((client_conn, _)) => { let _ = &self.handler.service_req(client_conn); },
[INFO] [stdout]    |                                           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `Command { std: "docker" "inspect" "33eb9b84b6a637e3ce59495878243bb7383e9b2cae5f9676867adea2eb91f92d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33eb9b84b6a637e3ce59495878243bb7383e9b2cae5f9676867adea2eb91f92d", kill_on_drop: false }`
[INFO] [stdout] 33eb9b84b6a637e3ce59495878243bb7383e9b2cae5f9676867adea2eb91f92d