[INFO] updating cached repository PritiKumr/rust-httpd
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/PritiKumr/rust-httpd
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/PritiKumr/rust-httpd" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/PritiKumr/rust-httpd"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/PritiKumr/rust-httpd'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/PritiKumr/rust-httpd" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/PritiKumr/rust-httpd"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/PritiKumr/rust-httpd'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 19e180be3194e22eb68cc6b3235aec295777419b
[INFO] sha for GitHub repo PritiKumr/rust-httpd: 19e180be3194e22eb68cc6b3235aec295777419b
[INFO] validating manifest of PritiKumr/rust-httpd on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of PritiKumr/rust-httpd on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing PritiKumr/rust-httpd
[INFO] finished frobbing PritiKumr/rust-httpd
[INFO] frobbed toml for PritiKumr/rust-httpd written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/PritiKumr/rust-httpd/Cargo.toml
[INFO] started frobbing PritiKumr/rust-httpd
[INFO] finished frobbing PritiKumr/rust-httpd
[INFO] frobbed toml for PritiKumr/rust-httpd written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/PritiKumr/rust-httpd/Cargo.toml
[INFO] crate PritiKumr/rust-httpd already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking PritiKumr/rust-httpd against master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-6/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/PritiKumr/rust-httpd:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5c0b225dfb5121ac2e8c3632bd8ee1a26b767434e186ee76c830686a388a0416
[INFO] running `"docker" "start" "-a" "5c0b225dfb5121ac2e8c3632bd8ee1a26b767434e186ee76c830686a388a0416"`
[INFO] [stderr]     Checking rust-httpd v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:83:10
[INFO] [stderr]    |
[INFO] [stderr] 83 |     for (i, &item) in request.headers.iter().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body_length`
[INFO] [stderr]    --> src/main.rs:177:9
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let body_length: u32 = match req
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_body_length`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:171:19
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn handle_request(mut stream: TcpStream, client_addr: SocketAddr) {
[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: function is never used: `request_url`
[INFO] [stderr]    --> src/main.rs:139:1
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn request_url(buffer: &[u8]) -> Option<&str> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     req.parse(&request_bytes);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:83:10
[INFO] [stderr]    |
[INFO] [stderr] 83 |     for (i, &item) in request.headers.iter().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body_length`
[INFO] [stderr]    --> src/main.rs:177:9
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let body_length: u32 = match req
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_body_length`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:171:19
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn handle_request(mut stream: TcpStream, client_addr: SocketAddr) {
[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: function is never used: `request_url`
[INFO] [stderr]    --> src/main.rs:139:1
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn request_url(buffer: &[u8]) -> Option<&str> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     req.parse(&request_bytes);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "5c0b225dfb5121ac2e8c3632bd8ee1a26b767434e186ee76c830686a388a0416"`
[INFO] running `"docker" "rm" "-f" "5c0b225dfb5121ac2e8c3632bd8ee1a26b767434e186ee76c830686a388a0416"`
[INFO] [stdout] 5c0b225dfb5121ac2e8c3632bd8ee1a26b767434e186ee76c830686a388a0416