Dec 19 11:06:23.444 INFO checking pepeul1191/rust-tutorial against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 11:06:23.444 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/pepeul1191/rust-tutorial:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 11:06:23.856 INFO [stdout] dc5e61d784c3e1d7b0893f7be59e6c5a79a744cd37c8d6c3e94767338748a1ae
Dec 19 11:06:23.864 INFO running `"docker" "start" "-a" "dc5e61d784c3e1d7b0893f7be59e6c5a79a744cd37c8d6c3e94767338748a1ae"`
Dec 19 11:06:25.646 INFO [stderr]     Checking mustache v0.8.2
Dec 19 11:06:25.652 INFO [stderr]     Checking hyper v0.10.13
Dec 19 11:06:29.677 INFO [stderr]     Checking nickel v0.10.1
Dec 19 11:06:31.664 INFO [stderr]     Checking nickel-demo v0.1.0 (/opt/crater/workdir)
Dec 19 11:06:32.436 INFO [stderr] warning: unused variable: `is_it_true`
Dec 19 11:06:32.436 INFO [stderr]   --> src/main.rs:11:7
Dec 19 11:06:32.436 INFO [stderr]    |
Dec 19 11:06:32.436 INFO [stderr] 11 |   let is_it_true: bool = true;
Dec 19 11:06:32.436 INFO [stderr]    |       ^^^^^^^^^^ help: consider using `_is_it_true` instead
Dec 19 11:06:32.436 INFO [stderr]    |
Dec 19 11:06:32.436 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 11:06:32.436 INFO [stderr] 
Dec 19 11:06:32.436 INFO [stderr] warning: unused variable: `let_x`
Dec 19 11:06:32.436 INFO [stderr]   --> src/main.rs:12:7
Dec 19 11:06:32.436 INFO [stderr]    |
Dec 19 11:06:32.436 INFO [stderr] 12 |   let let_x: char = 'x';
Dec 19 11:06:32.436 INFO [stderr]    |       ^^^^^ help: consider using `_let_x` instead
Dec 19 11:06:32.436 INFO [stderr] 
Dec 19 11:06:32.436 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:06:32.436 INFO [stderr]   --> src/main.rs:10:7
Dec 19 11:06:32.436 INFO [stderr]    |
Dec 19 11:06:32.436 INFO [stderr] 10 |   let mut num: i32 = 10;
Dec 19 11:06:32.436 INFO [stderr]    |       ----^^^
Dec 19 11:06:32.436 INFO [stderr]    |       |
Dec 19 11:06:32.436 INFO [stderr]    |       help: remove this `mut`
Dec 19 11:06:32.436 INFO [stderr]    |
Dec 19 11:06:32.436 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:06:32.436 INFO [stderr] 
Dec 19 11:06:32.436 INFO [stderr] warning: function is never used: `func2`
Dec 19 11:06:32.436 INFO [stderr]  --> src/constants.rs:2:2
Dec 19 11:06:32.436 INFO [stderr]   |
Dec 19 11:06:32.436 INFO [stderr] 2 |     pub fn func2() {
Dec 19 11:06:32.436 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 11:06:32.436 INFO [stderr]   |
Dec 19 11:06:32.436 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 11:06:32.436 INFO [stderr] 
Dec 19 11:06:32.436 INFO [stderr] warning: function is never used: `goodbye`
Dec 19 11:06:32.436 INFO [stderr]  --> src/english/farewells.rs:1:1
Dec 19 11:06:32.436 INFO [stderr]   |
Dec 19 11:06:32.436 INFO [stderr] 1 | fn goodbye() -> String {
Dec 19 11:06:32.436 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.436 INFO [stderr] 
Dec 19 11:06:32.436 INFO [stderr] warning: function is never used: `hello`
Dec 19 11:06:32.436 INFO [stderr]  --> src/japanese/greetings.rs:1:1
Dec 19 11:06:32.436 INFO [stderr]   |
Dec 19 11:06:32.436 INFO [stderr] 1 | fn hello() -> String {
Dec 19 11:06:32.436 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.436 INFO [stderr] 
Dec 19 11:06:32.436 INFO [stderr] warning: function is never used: `goodbye`
Dec 19 11:06:32.436 INFO [stderr]  --> src/japanese/farewells.rs:1:1
Dec 19 11:06:32.437 INFO [stderr]   |
Dec 19 11:06:32.437 INFO [stderr] 1 | fn goodbye() -> String {
Dec 19 11:06:32.437 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.437 INFO [stderr] 
Dec 19 11:06:32.437 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:06:32.437 INFO [stderr]   --> src/main.rs:32:3
Dec 19 11:06:32.437 INFO [stderr]    |
Dec 19 11:06:32.437 INFO [stderr] 32 |   server.listen("127.0.0.1:6767");
Dec 19 11:06:32.437 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.437 INFO [stderr]    |
Dec 19 11:06:32.437 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 11:06:32.437 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:06:32.437 INFO [stderr] 
Dec 19 11:06:32.500 INFO [stderr] warning: unused variable: `is_it_true`
Dec 19 11:06:32.500 INFO [stderr]   --> src/main.rs:11:7
Dec 19 11:06:32.500 INFO [stderr]    |
Dec 19 11:06:32.500 INFO [stderr] 11 |   let is_it_true: bool = true;
Dec 19 11:06:32.500 INFO [stderr]    |       ^^^^^^^^^^ help: consider using `_is_it_true` instead
Dec 19 11:06:32.500 INFO [stderr]    |
Dec 19 11:06:32.500 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 11:06:32.500 INFO [stderr] 
Dec 19 11:06:32.500 INFO [stderr] warning: unused variable: `let_x`
Dec 19 11:06:32.500 INFO [stderr]   --> src/main.rs:12:7
Dec 19 11:06:32.500 INFO [stderr]    |
Dec 19 11:06:32.500 INFO [stderr] 12 |   let let_x: char = 'x';
Dec 19 11:06:32.500 INFO [stderr]    |       ^^^^^ help: consider using `_let_x` instead
Dec 19 11:06:32.500 INFO [stderr] 
Dec 19 11:06:32.500 INFO [stderr] warning: variable does not need to be mutable
Dec 19 11:06:32.500 INFO [stderr]   --> src/main.rs:10:7
Dec 19 11:06:32.500 INFO [stderr]    |
Dec 19 11:06:32.500 INFO [stderr] 10 |   let mut num: i32 = 10;
Dec 19 11:06:32.500 INFO [stderr]    |       ----^^^
Dec 19 11:06:32.500 INFO [stderr]    |       |
Dec 19 11:06:32.500 INFO [stderr]    |       help: remove this `mut`
Dec 19 11:06:32.500 INFO [stderr]    |
Dec 19 11:06:32.500 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 11:06:32.500 INFO [stderr] 
Dec 19 11:06:32.500 INFO [stderr] warning: function is never used: `func2`
Dec 19 11:06:32.500 INFO [stderr]  --> src/constants.rs:2:2
Dec 19 11:06:32.500 INFO [stderr]   |
Dec 19 11:06:32.500 INFO [stderr] 2 |     pub fn func2() {
Dec 19 11:06:32.500 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 11:06:32.500 INFO [stderr]   |
Dec 19 11:06:32.500 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 11:06:32.500 INFO [stderr] 
Dec 19 11:06:32.500 INFO [stderr] warning: function is never used: `goodbye`
Dec 19 11:06:32.500 INFO [stderr]  --> src/english/farewells.rs:1:1
Dec 19 11:06:32.500 INFO [stderr]   |
Dec 19 11:06:32.500 INFO [stderr] 1 | fn goodbye() -> String {
Dec 19 11:06:32.500 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.500 INFO [stderr] 
Dec 19 11:06:32.500 INFO [stderr] warning: function is never used: `hello`
Dec 19 11:06:32.500 INFO [stderr]  --> src/japanese/greetings.rs:1:1
Dec 19 11:06:32.500 INFO [stderr]   |
Dec 19 11:06:32.500 INFO [stderr] 1 | fn hello() -> String {
Dec 19 11:06:32.500 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.500 INFO [stderr] 
Dec 19 11:06:32.500 INFO [stderr] warning: function is never used: `goodbye`
Dec 19 11:06:32.500 INFO [stderr]  --> src/japanese/farewells.rs:1:1
Dec 19 11:06:32.500 INFO [stderr]   |
Dec 19 11:06:32.500 INFO [stderr] 1 | fn goodbye() -> String {
Dec 19 11:06:32.500 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.501 INFO [stderr] 
Dec 19 11:06:32.501 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 11:06:32.501 INFO [stderr]   --> src/main.rs:32:3
Dec 19 11:06:32.501 INFO [stderr]    |
Dec 19 11:06:32.501 INFO [stderr] 32 |   server.listen("127.0.0.1:6767");
Dec 19 11:06:32.501 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 11:06:32.501 INFO [stderr]    |
Dec 19 11:06:32.501 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 11:06:32.501 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 11:06:32.501 INFO [stderr] 
Dec 19 11:06:32.536 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.07s
Dec 19 11:06:33.872 INFO running `"docker" "inspect" "dc5e61d784c3e1d7b0893f7be59e6c5a79a744cd37c8d6c3e94767338748a1ae"`
Dec 19 11:06:34.116 INFO running `"docker" "rm" "-f" "dc5e61d784c3e1d7b0893f7be59e6c5a79a744cd37c8d6c3e94767338748a1ae"`
Dec 19 11:06:34.441 INFO [stdout] dc5e61d784c3e1d7b0893f7be59e6c5a79a744cd37c8d6c3e94767338748a1ae