[INFO] updating cached repository jackwickham/rust-webserver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jackwickham/rust-webserver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jackwickham/rust-webserver" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/jackwickham/rust-webserver"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/jackwickham/rust-webserver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jackwickham/rust-webserver" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/jackwickham/rust-webserver"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/jackwickham/rust-webserver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ceba4e9cb6da89fcb40fb4ee133c581ea88bd7b
[INFO] sha for GitHub repo jackwickham/rust-webserver: 8ceba4e9cb6da89fcb40fb4ee133c581ea88bd7b
[INFO] validating manifest of jackwickham/rust-webserver on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jackwickham/rust-webserver on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jackwickham/rust-webserver
[INFO] finished frobbing jackwickham/rust-webserver
[INFO] frobbed toml for jackwickham/rust-webserver written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/jackwickham/rust-webserver/Cargo.toml
[INFO] started frobbing jackwickham/rust-webserver
[INFO] finished frobbing jackwickham/rust-webserver
[INFO] frobbed toml for jackwickham/rust-webserver written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/jackwickham/rust-webserver/Cargo.toml
[INFO] crate jackwickham/rust-webserver has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jackwickham/rust-webserver against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-0/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/jackwickham/rust-webserver:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7f58feebcf1e1dabf6933579590ec39743d3f282be2176549369ed617f3fd18e
[INFO] running `"docker" "start" "-a" "7f58feebcf1e1dabf6933579590ec39743d3f282be2176549369ed617f3fd18e"`
[INFO] [stderr]     Checking webserver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `builder`
[INFO] [stderr]    --> src/http/request/mod.rs:277:28
[INFO] [stderr]     |
[INFO] [stderr] 277 |     fn parse_body<T: Read>(builder: &mut RequestBuilder, it: &mut StreamReader<T>) -> Result<(), ParseError> {
[INFO] [stderr]     |                            ^^^^^^^ help: consider prefixing with an underscore: `_builder`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `it`
[INFO] [stderr]    --> src/http/request/mod.rs:277:58
[INFO] [stderr]     |
[INFO] [stderr] 277 |     fn parse_body<T: Read>(builder: &mut RequestBuilder, it: &mut StreamReader<T>) -> Result<(), ParseError> {
[INFO] [stderr]     |                                                          ^^ help: consider prefixing with an underscore: `_it`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step_back`
[INFO] [stderr]   --> src/http/request/util.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn step_back(&mut self) -> Option<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_inner`
[INFO] [stderr]   --> src/http/request/util.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn get_inner(&mut self) -> &mut T {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_body`
[INFO] [stderr]    --> src/http/request/mod.rs:375:5
[INFO] [stderr]     |
[INFO] [stderr] 375 |     pub fn get_body(&mut self) -> &mut Vec<u8> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_headers`
[INFO] [stderr]    --> src/http/request/mod.rs:384:5
[INFO] [stderr]     |
[INFO] [stderr] 384 |     pub fn get_headers(&self) -> &HashMap<String, String> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `builder`
[INFO] [stderr]    --> src/http/request/mod.rs:277:28
[INFO] [stderr]     |
[INFO] [stderr] 277 |     fn parse_body<T: Read>(builder: &mut RequestBuilder, it: &mut StreamReader<T>) -> Result<(), ParseError> {
[INFO] [stderr]     |                            ^^^^^^^ help: consider prefixing with an underscore: `_builder`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `it`
[INFO] [stderr]    --> src/http/request/mod.rs:277:58
[INFO] [stderr]     |
[INFO] [stderr] 277 |     fn parse_body<T: Read>(builder: &mut RequestBuilder, it: &mut StreamReader<T>) -> Result<(), ParseError> {
[INFO] [stderr]     |                                                          ^^ help: consider prefixing with an underscore: `_it`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step_back`
[INFO] [stderr]   --> src/http/request/util.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn step_back(&mut self) -> Option<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_inner`
[INFO] [stderr]   --> src/http/request/util.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn get_inner(&mut self) -> &mut T {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_body`
[INFO] [stderr]    --> src/http/request/mod.rs:375:5
[INFO] [stderr]     |
[INFO] [stderr] 375 |     pub fn get_body(&mut self) -> &mut Vec<u8> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_headers`
[INFO] [stderr]    --> src/http/request/mod.rs:384:5
[INFO] [stderr]     |
[INFO] [stderr] 384 |     pub fn get_headers(&self) -> &HashMap<String, String> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "7f58feebcf1e1dabf6933579590ec39743d3f282be2176549369ed617f3fd18e"`
[INFO] running `"docker" "rm" "-f" "7f58feebcf1e1dabf6933579590ec39743d3f282be2176549369ed617f3fd18e"`
[INFO] [stdout] 7f58feebcf1e1dabf6933579590ec39743d3f282be2176549369ed617f3fd18e