[INFO] cloning repository https://github.com/william-cohen/nochat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/william-cohen/nochat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliam-cohen%2Fnochat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliam-cohen%2Fnochat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b584d11ba0a1646be57984d539a4765818fe0993
[INFO] checking william-cohen/nochat against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliam-cohen%2Fnochat" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/william-cohen/nochat on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/william-cohen/nochat
[INFO] finished tweaking git repo https://github.com/william-cohen/nochat
[INFO] tweaked toml for git repo https://github.com/william-cohen/nochat written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/william-cohen/nochat 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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff58ae9ba6eec3c14a8147a587a9de4c37b656fafe9d5372aa6d15c1d952466b
[INFO] running `Command { std: "docker" "start" "-a" "ff58ae9ba6eec3c14a8147a587a9de4c37b656fafe9d5372aa6d15c1d952466b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff58ae9ba6eec3c14a8147a587a9de4c37b656fafe9d5372aa6d15c1d952466b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff58ae9ba6eec3c14a8147a587a9de4c37b656fafe9d5372aa6d15c1d952466b", kill_on_drop: false }`
[INFO] [stdout] ff58ae9ba6eec3c14a8147a587a9de4c37b656fafe9d5372aa6d15c1d952466b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f841e9e59d8a06f724594e69ddd1c39a46546230987408b12540d60311ade74c
[INFO] running `Command { std: "docker" "start" "-a" "f841e9e59d8a06f724594e69ddd1c39a46546230987408b12540d60311ade74c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking urlencoding v2.1.0
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]     Checking string_cache v0.8.4
[INFO] [stderr]    Compiling html5ever v0.26.0
[INFO] [stderr]     Checking ammonia v3.2.0
[INFO] [stderr]     Checking nochat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread, fs};
[INFO] [stdout]   |                   ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpListener` and `ToSocketAddrs`
[INFO] [stdout]  --> src/server/connection.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::{TcpListener, TcpStream, ToSocketAddrs};
[INFO] [stdout]   |                ^^^^^^^^^^^             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread, fs};
[INFO] [stdout]   |                   ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpListener` and `ToSocketAddrs`
[INFO] [stdout]  --> src/server/connection.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::{TcpListener, TcpStream, ToSocketAddrs};
[INFO] [stdout]   |                ^^^^^^^^^^^             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> src/server/connection.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CRLF` is never used
[INFO] [stdout]   --> src/server/connection.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const CRLF: &str = "\r\n";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `&str` to `&str`
[INFO] [stdout]   --> src/server/connection.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |             .map(|mat| mat.as_str().into())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/server.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             self.handle_unknown_request(connection);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |             let _ = self.handle_unknown_request(connection);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nochat` (bin "nochat") due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> src/server/connection.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CRLF` is never used
[INFO] [stdout]   --> src/server/connection.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const CRLF: &str = "\r\n";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `&str` to `&str`
[INFO] [stdout]   --> src/server/connection.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |             .map(|mat| mat.as_str().into())
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/server.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             self.handle_unknown_request(connection);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |             let _ = self.handle_unknown_request(connection);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nochat` (bin "nochat" test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f841e9e59d8a06f724594e69ddd1c39a46546230987408b12540d60311ade74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f841e9e59d8a06f724594e69ddd1c39a46546230987408b12540d60311ade74c", kill_on_drop: false }`
[INFO] [stdout] f841e9e59d8a06f724594e69ddd1c39a46546230987408b12540d60311ade74c