[INFO] cloning repository dave-leeper/rusty_spider_server
[INFO] running `"git" "clone" "--bare" "git://github.com/dave-leeper/rusty_spider_server.git" "work/cache/sources/gh/dave-leeper/rusty_spider_server"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/dave-leeper/rusty_spider_server'...
[INFO] running `"git" "clone" "work/cache/sources/gh/dave-leeper/rusty_spider_server" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dave-leeper/rusty_spider_server"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dave-leeper/rusty_spider_server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dave-leeper/rusty_spider_server" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dave-leeper/rusty_spider_server"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dave-leeper/rusty_spider_server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] da4932cf474d232c36d37f1881c1bb29509fec4f
[INFO] sha for GitHub repo dave-leeper/rusty_spider_server: da4932cf474d232c36d37f1881c1bb29509fec4f
[INFO] validating manifest of dave-leeper/rusty_spider_server on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dave-leeper/rusty_spider_server on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dave-leeper/rusty_spider_server
[INFO] finished frobbing dave-leeper/rusty_spider_server
[INFO] frobbed toml for dave-leeper/rusty_spider_server written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dave-leeper/rusty_spider_server/Cargo.toml
[INFO] started frobbing dave-leeper/rusty_spider_server
[INFO] finished frobbing dave-leeper/rusty_spider_server
[INFO] frobbed toml for dave-leeper/rusty_spider_server written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dave-leeper/rusty_spider_server/Cargo.toml
[INFO] crate dave-leeper/rusty_spider_server already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper v0.12.3
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building dave-leeper/rusty_spider_server against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dave-leeper/rusty_spider_server:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 55dc95bca58b375d95ad62f1a1de1f0fa63ecd3d57bfad68e1abc01038b9eb12
[INFO] running `"docker" "start" "-a" "55dc95bca58b375d95ad62f1a1de1f0fa63ecd3d57bfad68e1abc01038b9eb12"`
[INFO] [stderr]    Compiling serde v1.0.68
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling clicolors-control v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling aho-corasick v0.6.5
[INFO] [stderr]    Compiling lock_api v0.1.3
[INFO] [stderr]    Compiling http v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.68
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling want v0.0.5
[INFO] [stderr]    Compiling parking_lot v0.6.2
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.4
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.1
[INFO] [stderr]    Compiling console v0.6.1
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling h2 v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling chrono v0.4.4
[INFO] [stderr]    Compiling hyper v0.12.3
[INFO] [stderr]    Compiling web_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `strings`
[INFO] [stderr]  --> src/i18n.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use strings;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/config.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `config`
[INFO] [stderr]  --> src/router.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use config;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::service::service_fn`
[INFO] [stderr]  --> src/router.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use hyper::service::service_fn;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/mock_handler.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i18n`
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let i18n = &I18N;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_i18n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `response_type_holder` is never read
[INFO] [stderr]    --> src/config.rs:307:17
[INFO] [stderr]     |
[INFO] [stderr] 307 |         let mut response_type_holder = "UNKNOWN";
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `hbs_data_option` is never read
[INFO] [stderr]    --> src/config.rs:329:17
[INFO] [stderr]     |
[INFO] [stderr] 329 |         let mut hbs_data_option = None;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/config.rs:458:21
[INFO] [stderr]     |
[INFO] [stderr] 458 |                 Err(e) => {
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]    --> src/mock_handler.rs:107:22
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn handle(&self, req: &Request<Body>, res: & mut Response<Body>, i18n: & i18n::I18n, request_info: &MockRequestInfo) -> Result<Option<Response<Body>>, log::StructuredError> {
[INFO] [stderr]     |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/mock_handler.rs:107:43
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn handle(&self, req: &Request<Body>, res: & mut Response<Body>, i18n: & i18n::I18n, request_info: &MockRequestInfo) -> Result<Option<Response<Body>>, log::StructuredError> {
[INFO] [stderr]     |                                           ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mock_handler.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let mut response = Response::new(Body::from( contents ));
[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: method is never used: `init`
[INFO] [stderr]   --> src/i18n.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn init(&mut self, locale: String, path: String) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `init`
[INFO] [stderr]    --> src/log.rs:200:5
[INFO] [stderr]     |
[INFO] [stderr] 200 |     pub fn init(&mut self, level: Level, i18n: &i18n::I18n) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]    --> src/log.rs:210:5
[INFO] [stderr]     |
[INFO] [stderr] 210 |     pub fn set(&mut self, level: Level) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `AUTHORIZATION_NOT_CONFIGURED`
[INFO] [stderr]  --> src/strings.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub static AUTHORIZATION_NOT_CONFIGURED: usize = 1;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `UNAUTHORIZED`
[INFO] [stderr]  --> src/strings.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub static UNAUTHORIZED: usize = 2;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `LOGIN_REQUIRED`
[INFO] [stderr]  --> src/strings.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub static LOGIN_REQUIRED: usize = 3;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `INCORRECT_USER_NAME`
[INFO] [stderr]  --> src/strings.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub static INCORRECT_USER_NAME: usize = 4;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `INCORRECT_PASSWORD`
[INFO] [stderr]  --> src/strings.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub static INCORRECT_PASSWORD: usize = 5;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `LOGIN_SUCCESSFUL`
[INFO] [stderr]  --> src/strings.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub static LOGIN_SUCCESSFUL: usize = 6;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `LISTENING_ON_PORT`
[INFO] [stderr]  --> src/strings.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub static LISTENING_ON_PORT: usize = 7;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `NO_FILE_SPECIFIED`
[INFO] [stderr]   --> src/strings.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub static NO_FILE_SPECIFIED: usize = 26;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `COUNT`
[INFO] [stderr]   --> src/strings.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub static COUNT: usize = 30;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.81s
[INFO] running `"docker" "inspect" "55dc95bca58b375d95ad62f1a1de1f0fa63ecd3d57bfad68e1abc01038b9eb12"`
[INFO] running `"docker" "rm" "-f" "55dc95bca58b375d95ad62f1a1de1f0fa63ecd3d57bfad68e1abc01038b9eb12"`
[INFO] [stdout] 55dc95bca58b375d95ad62f1a1de1f0fa63ecd3d57bfad68e1abc01038b9eb12
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dave-leeper/rusty_spider_server:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] e20d0bbca1dbd8393bd764eafd4bd6d97fdcfcd464ac1220c50967b6ff5b482a
[INFO] running `"docker" "start" "-a" "e20d0bbca1dbd8393bd764eafd4bd6d97fdcfcd464ac1220c50967b6ff5b482a"`
[INFO] [stderr]    Compiling web_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/config.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `config`
[INFO] [stderr]  --> src/router.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use config;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::service::service_fn`
[INFO] [stderr]  --> src/router.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use hyper::service::service_fn;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::Method`
[INFO] [stderr]   --> src/router.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     use hyper::Method;
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::Uri`
[INFO] [stderr]   --> src/router.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     use hyper::Uri;
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/mock_handler.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::Method`
[INFO] [stderr]    --> src/mock_handler.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 |     use hyper::Method;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hyper::Uri`
[INFO] [stderr]    --> src/mock_handler.rs:161:9
[INFO] [stderr]     |
[INFO] [stderr] 161 |     use hyper::Uri;
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i18n`
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let i18n = &I18N;
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_i18n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `response_type_holder` is never read
[INFO] [stderr]    --> src/config.rs:307:17
[INFO] [stderr]     |
[INFO] [stderr] 307 |         let mut response_type_holder = "UNKNOWN";
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `hbs_data_option` is never read
[INFO] [stderr]    --> src/config.rs:329:17
[INFO] [stderr]     |
[INFO] [stderr] 329 |         let mut hbs_data_option = None;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/config.rs:458:21
[INFO] [stderr]     |
[INFO] [stderr] 458 |                 Err(e) => {
[INFO] [stderr]     |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mock3`
[INFO] [stderr]   --> src/router.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let mock3 = config::prelude::MockService {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_mock3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]    --> src/mock_handler.rs:107:22
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn handle(&self, req: &Request<Body>, res: & mut Response<Body>, i18n: & i18n::I18n, request_info: &MockRequestInfo) -> Result<Option<Response<Body>>, log::StructuredError> {
[INFO] [stderr]     |                      ^^^ help: consider prefixing with an underscore: `_req`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/mock_handler.rs:107:43
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn handle(&self, req: &Request<Body>, res: & mut Response<Body>, i18n: & i18n::I18n, request_info: &MockRequestInfo) -> Result<Option<Response<Body>>, log::StructuredError> {
[INFO] [stderr]     |                                           ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_response`
[INFO] [stderr]    --> src/mock_handler.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let some_response = match unwrapped_result {
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_response`
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `web_server`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name web_server src/main.rs --color never --emit=dep-info,link -C debuginfo=2 --test -C metadata=55aae47b44294ea8 -C extra-filename=-55aae47b44294ea8 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern chrono=/opt/crater/target/debug/deps/libchrono-35d1917d5dcb13c6.rlib --extern console=/opt/crater/target/debug/deps/libconsole-6b9c230b50805f34.rlib --extern hostname=/opt/crater/target/debug/deps/libhostname-efea38692a746845.rlib --extern hyper=/opt/crater/target/debug/deps/libhyper-b74e4562af18d6dd.rlib --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-cfe458c01f692b66.rlib --extern serde=/opt/crater/target/debug/deps/libserde-e580c4544616cd02.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-2d39aa9f5540c764.so --extern serde_json=/opt/crater/target/debug/deps/libserde_json-2522b467f3ce07b7.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "e20d0bbca1dbd8393bd764eafd4bd6d97fdcfcd464ac1220c50967b6ff5b482a"`
[INFO] running `"docker" "rm" "-f" "e20d0bbca1dbd8393bd764eafd4bd6d97fdcfcd464ac1220c50967b6ff5b482a"`
[INFO] [stdout] e20d0bbca1dbd8393bd764eafd4bd6d97fdcfcd464ac1220c50967b6ff5b482a