[INFO] updating cached repository annaholmes/webserver2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/annaholmes/webserver2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/annaholmes/webserver2" "work/ex/beta-1.38-1/sources/1.37.0/gh/annaholmes/webserver2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/annaholmes/webserver2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/annaholmes/webserver2" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/annaholmes/webserver2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/annaholmes/webserver2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3f43bd0558adeeb8ca64f5ea37a202a8ac5a4ccf
[INFO] sha for GitHub repo annaholmes/webserver2: 3f43bd0558adeeb8ca64f5ea37a202a8ac5a4ccf
[INFO] validating manifest of annaholmes/webserver2 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of annaholmes/webserver2 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing annaholmes/webserver2
[INFO] finished frobbing annaholmes/webserver2
[INFO] frobbed toml for annaholmes/webserver2 written to work/ex/beta-1.38-1/sources/1.37.0/gh/annaholmes/webserver2/Cargo.toml
[INFO] started frobbing annaholmes/webserver2
[INFO] finished frobbing annaholmes/webserver2
[INFO] frobbed toml for annaholmes/webserver2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/annaholmes/webserver2/Cargo.toml
[INFO] crate annaholmes/webserver2 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing annaholmes/webserver2 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/annaholmes/webserver2:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ecf016a4082a77141180eb3ccbd68f7d01ad0ce8a22c3c431cfe76ee00690b1d
[INFO] running `"docker" "start" "-a" "ecf016a4082a77141180eb3ccbd68f7d01ad0ce8a22c3c431cfe76ee00690b1d"`
[INFO] [stderr]    Compiling webserver2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `total_reqs`
[INFO] [stderr]   --> src/main.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let total_reqs = total_reqs.lock().unwrap();
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_total_reqs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `valid_reqs`
[INFO] [stderr]   --> src/main.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let valid_reqs = valid_reqs.lock().unwrap();
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_valid_reqs`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `valid_reqs`
[INFO] [stderr]   --> src/main.rs:43:70
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn handle_client(mut stream: TcpStream, total_reqs: Arc<Mutex<u64>>, valid_reqs: Arc<Mutex<u64>>) {
[INFO] [stderr]    |                                                                      ^^^^^^^^^^ help: consider prefixing with an underscore: `_valid_reqs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:101:16
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn handle_file(mut thisStream: Arc<Mutex<TcpStream>>, file: &str, address : &std::net::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: variable `multFiles` should have a snake case name
[INFO] [stderr]   --> src/main.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |             let mut multFiles = words[1].split("/").collect::<Vec<&str>>();
[INFO] [stderr]    |                     ^^^^^^^^^ help: convert the identifier to snake case: `mult_files`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]   --> src/main.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |             let thisStream = Arc::new(Mutex::new(stream));
[INFO] [stderr]    |                 ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]   --> src/main.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let thisStream = thisStream.clone();
[INFO] [stderr]    |                     ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:101:20
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn handle_file(mut thisStream: Arc<Mutex<TcpStream>>, file: &str, address : &std::net::SocketAddr) {
[INFO] [stderr]     |                    ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let mut thisStream = thisStream.lock().unwrap();
[INFO] [stderr]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:127:25
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 let mut thisStream = thisStream.lock().unwrap();
[INFO] [stderr]     |                         ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:138:25
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 let mut thisStream = thisStream.lock().unwrap();
[INFO] [stderr]     |                         ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "ecf016a4082a77141180eb3ccbd68f7d01ad0ce8a22c3c431cfe76ee00690b1d"`
[INFO] running `"docker" "rm" "-f" "ecf016a4082a77141180eb3ccbd68f7d01ad0ce8a22c3c431cfe76ee00690b1d"`
[INFO] [stdout] ecf016a4082a77141180eb3ccbd68f7d01ad0ce8a22c3c431cfe76ee00690b1d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/annaholmes/webserver2:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 73f6dc4b2e1de93ec20af4ffe045e1258dcf7c11df12c953a4dc3e9fc16d72e7
[INFO] running `"docker" "start" "-a" "73f6dc4b2e1de93ec20af4ffe045e1258dcf7c11df12c953a4dc3e9fc16d72e7"`
[INFO] [stderr]    Compiling webserver2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `total_reqs`
[INFO] [stderr]   --> src/main.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let total_reqs = total_reqs.lock().unwrap();
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_total_reqs`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `valid_reqs`
[INFO] [stderr]   --> src/main.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let valid_reqs = valid_reqs.lock().unwrap();
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_valid_reqs`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `valid_reqs`
[INFO] [stderr]   --> src/main.rs:43:70
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn handle_client(mut stream: TcpStream, total_reqs: Arc<Mutex<u64>>, valid_reqs: Arc<Mutex<u64>>) {
[INFO] [stderr]    |                                                                      ^^^^^^^^^^ help: consider prefixing with an underscore: `_valid_reqs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:101:16
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn handle_file(mut thisStream: Arc<Mutex<TcpStream>>, file: &str, address : &std::net::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: variable `multFiles` should have a snake case name
[INFO] [stderr]   --> src/main.rs:72:21
[INFO] [stderr]    |
[INFO] [stderr] 72 |             let mut multFiles = words[1].split("/").collect::<Vec<&str>>();
[INFO] [stderr]    |                     ^^^^^^^^^ help: convert the identifier to snake case: `mult_files`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]   --> src/main.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |             let thisStream = Arc::new(Mutex::new(stream));
[INFO] [stderr]    |                 ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]   --> src/main.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 let thisStream = thisStream.clone();
[INFO] [stderr]    |                     ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:101:20
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn handle_file(mut thisStream: Arc<Mutex<TcpStream>>, file: &str, address : &std::net::SocketAddr) {
[INFO] [stderr]     |                    ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let mut thisStream = thisStream.lock().unwrap();
[INFO] [stderr]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:127:25
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 let mut thisStream = thisStream.lock().unwrap();
[INFO] [stderr]     |                         ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `thisStream` should have a snake case name
[INFO] [stderr]    --> src/main.rs:138:25
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 let mut thisStream = thisStream.lock().unwrap();
[INFO] [stderr]     |                         ^^^^^^^^^^ help: convert the identifier to snake case: `this_stream`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "73f6dc4b2e1de93ec20af4ffe045e1258dcf7c11df12c953a4dc3e9fc16d72e7"`
[INFO] running `"docker" "rm" "-f" "73f6dc4b2e1de93ec20af4ffe045e1258dcf7c11df12c953a4dc3e9fc16d72e7"`
[INFO] [stdout] 73f6dc4b2e1de93ec20af4ffe045e1258dcf7c11df12c953a4dc3e9fc16d72e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/annaholmes/webserver2:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9b397c6c1609161b4f056ffdc9027106a5a6e51a52f44d253c7bfc7d16d298be
[INFO] running `"docker" "start" "-a" "9b397c6c1609161b4f056ffdc9027106a5a6e51a52f44d253c7bfc7d16d298be"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/webserver2-f7b5ff609568fcb2
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9b397c6c1609161b4f056ffdc9027106a5a6e51a52f44d253c7bfc7d16d298be"`
[INFO] running `"docker" "rm" "-f" "9b397c6c1609161b4f056ffdc9027106a5a6e51a52f44d253c7bfc7d16d298be"`
[INFO] [stdout] 9b397c6c1609161b4f056ffdc9027106a5a6e51a52f44d253c7bfc7d16d298be