[INFO] cloning repository https://github.com/hortenbach/rust_http
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hortenbach/rust_http" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhortenbach%2Frust_http", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhortenbach%2Frust_http'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d059276e1296163af06c58df07c60d685a3221cd
[INFO] checking hortenbach/rust_http against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhortenbach%2Frust_http" "/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/hortenbach/rust_http on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hortenbach/rust_http
[INFO] finished tweaking git repo https://github.com/hortenbach/rust_http
[INFO] tweaked toml for git repo https://github.com/hortenbach/rust_http written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hortenbach/rust_http 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "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] 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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1633ad7e635a0a45a96e0a807a05357aec150434b94b554998914eba0d2287f
[INFO] running `Command { std: "docker" "start" "-a" "a1633ad7e635a0a45a96e0a807a05357aec150434b94b554998914eba0d2287f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1633ad7e635a0a45a96e0a807a05357aec150434b94b554998914eba0d2287f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1633ad7e635a0a45a96e0a807a05357aec150434b94b554998914eba0d2287f", kill_on_drop: false }`
[INFO] [stdout] a1633ad7e635a0a45a96e0a807a05357aec150434b94b554998914eba0d2287f
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8fd6f091f873aba3969e388aee922fb98cd8bddacf08f14348999ab942dc150
[INFO] running `Command { std: "docker" "start" "-a" "a8fd6f091f873aba3969e388aee922fb98cd8bddacf08f14348999ab942dc150", kill_on_drop: false }`
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/server.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{ Write, Read };
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Value as QueryStringValue`
[INFO] [stdout]  --> src/http/mod.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use query_string::{ QueryString, Value as QueryStringValue };
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `Result as FmtResult`, and `net::TcpStream`
[INFO] [stdout]  --> src/http/response.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{ fmt::{ Display, Formatter, Result as FmtResult }, net::TcpStream };
[INFO] [stdout]   |                   ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/server.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{ Write, Read };
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Value as QueryStringValue`
[INFO] [stdout]  --> src/http/mod.rs:4:38
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use query_string::{ QueryString, Value as QueryStringValue };
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `Result as FmtResult`, and `net::TcpStream`
[INFO] [stdout]  --> src/http/response.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{ fmt::{ Display, Formatter, Result as FmtResult }, net::TcpStream };
[INFO] [stdout]   |                   ^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/server.rs:52:29
[INFO] [stdout]    |
[INFO] [stdout] 52 | ...                   response.send(&mut stream);
[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] 52 |                             let _ = response.send(&mut stream);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/server.rs:52:29
[INFO] [stdout]    |
[INFO] [stdout] 52 | ...                   response.send(&mut stream);
[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] 52 |                             let _ = response.send(&mut stream);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "a8fd6f091f873aba3969e388aee922fb98cd8bddacf08f14348999ab942dc150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8fd6f091f873aba3969e388aee922fb98cd8bddacf08f14348999ab942dc150", kill_on_drop: false }`
[INFO] [stdout] a8fd6f091f873aba3969e388aee922fb98cd8bddacf08f14348999ab942dc150