[INFO] updating cached repository https://github.com/danielfvm/dead_simple_webserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4744bc7d80508de9f6dca5bca7dac3bb8394442
[INFO] checking danielfvm/dead_simple_webserver/c4744bc7d80508de9f6dca5bca7dac3bb8394442 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielfvm%2Fdead_simple_webserver" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielfvm/dead_simple_webserver on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danielfvm/dead_simple_webserver
[INFO] finished tweaking git repo https://github.com/danielfvm/dead_simple_webserver
[INFO] tweaked toml for git repo https://github.com/danielfvm/dead_simple_webserver written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/danielfvm/dead_simple_webserver 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37ea3979428b689f007047b6061a81c73a5ae06a9ef04bbb800c9f16a3232997
[INFO] running `Command { std: "docker" "start" "-a" "37ea3979428b689f007047b6061a81c73a5ae06a9ef04bbb800c9f16a3232997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ea3979428b689f007047b6061a81c73a5ae06a9ef04bbb800c9f16a3232997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ea3979428b689f007047b6061a81c73a5ae06a9ef04bbb800c9f16a3232997", kill_on_drop: false }`
[INFO] [stdout] 37ea3979428b689f007047b6061a81c73a5ae06a9ef04bbb800c9f16a3232997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d20eaedb22bd4ecfe70e3f8bdf26e41df335a0a572e7c12a6c71af04bbd1a2cf
[INFO] running `Command { std: "docker" "start" "-a" "d20eaedb22bd4ecfe70e3f8bdf26e41df335a0a572e7c12a6c71af04bbd1a2cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling serde_json v1.0.121
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking bytes v1.6.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking tinyvec v1.8.0
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking webbrowser v1.0.1
[INFO] [stderr]    Compiling render_macros v0.3.1
[INFO] [stderr]     Checking render v0.3.1
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling html-macro v0.2.5
[INFO] [stderr]     Checking tokio v1.39.2
[INFO] [stderr]     Checking dead_simple_webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/lib.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{prelude::*, BufReader},
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/lib.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{prelude::*, BufReader},
[INFO] [stdout]   |                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.31s
[INFO] running `Command { std: "docker" "inspect" "d20eaedb22bd4ecfe70e3f8bdf26e41df335a0a572e7c12a6c71af04bbd1a2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d20eaedb22bd4ecfe70e3f8bdf26e41df335a0a572e7c12a6c71af04bbd1a2cf", kill_on_drop: false }`
[INFO] [stdout] d20eaedb22bd4ecfe70e3f8bdf26e41df335a0a572e7c12a6c71af04bbd1a2cf