[INFO] fetching crate tiny_http 0.12.0...
[INFO] checking tiny_http-0.12.0 against master#b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 for pr-105483
[INFO] extracting crate tiny_http 0.12.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tiny_http 0.12.0 on toolchain b359ccf1b0b7b2d2c1c4932344b806e68bd053a9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tiny_http 0.12.0
[INFO] finished tweaking crates.io crate tiny_http 0.12.0
[INFO] tweaked toml for crates.io crate tiny_http 0.12.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate tiny_http 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fdlimit v0.1.4
[INFO] [stderr]   Downloaded ascii v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db7ba414ed7403a4d515895c1fef188197874fdf49f5f3939c91ffd822748726
[INFO] running `Command { std: "docker" "start" "-a" "db7ba414ed7403a4d515895c1fef188197874fdf49f5f3939c91ffd822748726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db7ba414ed7403a4d515895c1fef188197874fdf49f5f3939c91ffd822748726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db7ba414ed7403a4d515895c1fef188197874fdf49f5f3939c91ffd822748726", kill_on_drop: false }`
[INFO] [stdout] db7ba414ed7403a4d515895c1fef188197874fdf49f5f3939c91ffd822748726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85037e2789b7c57aeada82c368d23470bd814e60d3c5c3d871b0314fb9998a9f
[INFO] running `Command { std: "docker" "start" "-a" "85037e2789b7c57aeada82c368d23470bd814e60d3c5c3d871b0314fb9998a9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking tiny_http v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fdlimit v0.1.4
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/bench.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         request.respond(tiny_http::Response::new_empty(tiny_http::StatusCode(204)));
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/bench.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             request.respond(tiny_http::Response::new_empty(tiny_http::StatusCode(204)));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "85037e2789b7c57aeada82c368d23470bd814e60d3c5c3d871b0314fb9998a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85037e2789b7c57aeada82c368d23470bd814e60d3c5c3d871b0314fb9998a9f", kill_on_drop: false }`
[INFO] [stdout] 85037e2789b7c57aeada82c368d23470bd814e60d3c5c3d871b0314fb9998a9f