[INFO] fetching crate ctchi 0.10.0...
[INFO] checking ctchi-0.10.0 against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] extracting crate ctchi 0.10.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ctchi 0.10.0 on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ctchi 0.10.0
[INFO] finished tweaking crates.io crate ctchi 0.10.0
[INFO] tweaked toml for crates.io crate ctchi 0.10.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ctchi 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctchi_codegen v0.1.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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] e2679dc196aefd2b0190e79b5b553234766b893a2f9dcc09564d7446037b5bf6
[INFO] running `"docker" "start" "-a" "e2679dc196aefd2b0190e79b5b553234766b893a2f9dcc09564d7446037b5bf6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.20
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling ctchi_codegen v0.1.0
[INFO] [stderr]     Checking ctchi v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `time`
[INFO] [stderr]  --> src/core/app.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{fs, time};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/core/app.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `fs` is imported redundantly
[INFO] [stderr]   --> src/core/app.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::{fs, time};
[INFO] [stderr]    |           -- the item `fs` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 61 |         use std::fs;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `time`
[INFO] [stderr]  --> src/core/app.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{fs, time};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/core/app.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `fs` is imported redundantly
[INFO] [stderr]   --> src/core/app.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::{fs, time};
[INFO] [stderr]    |           -- the item `fs` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 61 |         use std::fs;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pres`
[INFO] [stderr]   --> src/core/app.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let pres = result.unwrap_or_else(|error| {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_pres`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/app.rs:69:30
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn handle_request(&self, mut stream: TcpStream, config: Arc<Config>, routes: Arc<Routes>) {
[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: field is never read: `workers`
[INFO] [stderr]  --> src/core/thread_pool.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/core/thread_pool.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/core/thread_pool.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pres`
[INFO] [stderr]   --> src/core/app.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let pres = result.unwrap_or_else(|error| {
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_pres`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/app.rs:69:30
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn handle_request(&self, mut stream: TcpStream, config: Arc<Config>, routes: Arc<Routes>) {
[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: field is never read: `workers`
[INFO] [stderr]  --> src/core/thread_pool.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/core/thread_pool.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `thread`
[INFO] [stderr]   --> src/core/thread_pool.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut config = Config::new();
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut config = Config::new();
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.21s
[INFO] running `"docker" "inspect" "e2679dc196aefd2b0190e79b5b553234766b893a2f9dcc09564d7446037b5bf6"`
[INFO] running `"docker" "rm" "-f" "e2679dc196aefd2b0190e79b5b553234766b893a2f9dcc09564d7446037b5bf6"`
[INFO] [stdout] e2679dc196aefd2b0190e79b5b553234766b893a2f9dcc09564d7446037b5bf6