Dec 11 11:59:31.637 INFO checking pepeul1191/rust-tutorial against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 11:59:31.637 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 11:59:31.872 INFO [stdout] 0f1fa6018aa855f68fd5cf35ecc6ad620635d2450ed4f07861669ede50c53f1c
Dec 11 11:59:31.877 INFO running `"docker" "start" "-a" "0f1fa6018aa855f68fd5cf35ecc6ad620635d2450ed4f07861669ede50c53f1c"`
Dec 11 11:59:32.916 INFO [stderr] usermod: no changes
Dec 11 11:59:33.067 INFO [stderr]     Checking mustache v0.8.2
Dec 11 11:59:33.067 INFO [stderr]     Checking hyper v0.10.13
Dec 11 11:59:37.803 INFO [stderr]     Checking nickel v0.10.1
Dec 11 11:59:40.324 INFO [stderr]     Checking nickel-demo v0.1.0 (/source)
Dec 11 11:59:41.528 INFO [stderr] warning: unused variable: `is_it_true`
Dec 11 11:59:41.528 INFO [stderr]   --> src/main.rs:11:7
Dec 11 11:59:41.528 INFO [stderr]    |
Dec 11 11:59:41.528 INFO [stderr] 11 |   let is_it_true: bool = true;
Dec 11 11:59:41.528 INFO [stderr]    |       ^^^^^^^^^^ help: consider using `_is_it_true` instead
Dec 11 11:59:41.528 INFO [stderr]    |
Dec 11 11:59:41.528 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 11:59:41.528 INFO [stderr] 
Dec 11 11:59:41.528 INFO [stderr] warning: unused variable: `let_x`
Dec 11 11:59:41.528 INFO [stderr]   --> src/main.rs:12:7
Dec 11 11:59:41.528 INFO [stderr]    |
Dec 11 11:59:41.528 INFO [stderr] 12 |   let let_x: char = 'x';
Dec 11 11:59:41.528 INFO [stderr]    |       ^^^^^ help: consider using `_let_x` instead
Dec 11 11:59:41.528 INFO [stderr] 
Dec 11 11:59:41.528 INFO [stderr] warning: variable does not need to be mutable
Dec 11 11:59:41.528 INFO [stderr]   --> src/main.rs:10:7
Dec 11 11:59:41.528 INFO [stderr]    |
Dec 11 11:59:41.528 INFO [stderr] 10 |   let mut num: i32 = 10;
Dec 11 11:59:41.528 INFO [stderr]    |       ----^^^
Dec 11 11:59:41.528 INFO [stderr]    |       |
Dec 11 11:59:41.528 INFO [stderr]    |       help: remove this `mut`
Dec 11 11:59:41.528 INFO [stderr]    |
Dec 11 11:59:41.528 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 11:59:41.528 INFO [stderr] 
Dec 11 11:59:41.532 INFO [stderr] warning: function is never used: `func2`
Dec 11 11:59:41.532 INFO [stderr]  --> src/constants.rs:2:2
Dec 11 11:59:41.532 INFO [stderr]   |
Dec 11 11:59:41.532 INFO [stderr] 2 |     pub fn func2() {
Dec 11 11:59:41.532 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 11 11:59:41.532 INFO [stderr]   |
Dec 11 11:59:41.532 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 11:59:41.532 INFO [stderr] 
Dec 11 11:59:41.532 INFO [stderr] warning: function is never used: `goodbye`
Dec 11 11:59:41.532 INFO [stderr]  --> src/english/farewells.rs:1:1
Dec 11 11:59:41.532 INFO [stderr]   |
Dec 11 11:59:41.532 INFO [stderr] 1 | fn goodbye() -> String {
Dec 11 11:59:41.532 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.532 INFO [stderr] 
Dec 11 11:59:41.532 INFO [stderr] warning: function is never used: `hello`
Dec 11 11:59:41.532 INFO [stderr]  --> src/japanese/greetings.rs:1:1
Dec 11 11:59:41.532 INFO [stderr]   |
Dec 11 11:59:41.532 INFO [stderr] 1 | fn hello() -> String {
Dec 11 11:59:41.532 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.532 INFO [stderr] 
Dec 11 11:59:41.533 INFO [stderr] warning: function is never used: `goodbye`
Dec 11 11:59:41.533 INFO [stderr]  --> src/japanese/farewells.rs:1:1
Dec 11 11:59:41.533 INFO [stderr]   |
Dec 11 11:59:41.533 INFO [stderr] 1 | fn goodbye() -> String {
Dec 11 11:59:41.533 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.533 INFO [stderr] 
Dec 11 11:59:41.533 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 11:59:41.533 INFO [stderr]   --> src/main.rs:32:3
Dec 11 11:59:41.533 INFO [stderr]    |
Dec 11 11:59:41.533 INFO [stderr] 32 |   server.listen("127.0.0.1:6767");
Dec 11 11:59:41.533 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.533 INFO [stderr]    |
Dec 11 11:59:41.533 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 11:59:41.533 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 11:59:41.533 INFO [stderr] 
Dec 11 11:59:41.808 INFO [stderr] warning: unused variable: `is_it_true`
Dec 11 11:59:41.808 INFO [stderr]   --> src/main.rs:11:7
Dec 11 11:59:41.808 INFO [stderr]    |
Dec 11 11:59:41.808 INFO [stderr] 11 |   let is_it_true: bool = true;
Dec 11 11:59:41.808 INFO [stderr]    |       ^^^^^^^^^^ help: consider using `_is_it_true` instead
Dec 11 11:59:41.808 INFO [stderr]    |
Dec 11 11:59:41.808 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 11:59:41.808 INFO [stderr] 
Dec 11 11:59:41.808 INFO [stderr] warning: unused variable: `let_x`
Dec 11 11:59:41.808 INFO [stderr]   --> src/main.rs:12:7
Dec 11 11:59:41.808 INFO [stderr]    |
Dec 11 11:59:41.808 INFO [stderr] 12 |   let let_x: char = 'x';
Dec 11 11:59:41.808 INFO [stderr]    |       ^^^^^ help: consider using `_let_x` instead
Dec 11 11:59:41.808 INFO [stderr] 
Dec 11 11:59:41.811 INFO [stderr] warning: variable does not need to be mutable
Dec 11 11:59:41.811 INFO [stderr]   --> src/main.rs:10:7
Dec 11 11:59:41.811 INFO [stderr]    |
Dec 11 11:59:41.811 INFO [stderr] 10 |   let mut num: i32 = 10;
Dec 11 11:59:41.811 INFO [stderr]    |       ----^^^
Dec 11 11:59:41.811 INFO [stderr]    |       |
Dec 11 11:59:41.811 INFO [stderr]    |       help: remove this `mut`
Dec 11 11:59:41.811 INFO [stderr]    |
Dec 11 11:59:41.811 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 11:59:41.811 INFO [stderr] 
Dec 11 11:59:41.813 INFO [stderr] warning: function is never used: `func2`
Dec 11 11:59:41.813 INFO [stderr]  --> src/constants.rs:2:2
Dec 11 11:59:41.813 INFO [stderr]   |
Dec 11 11:59:41.813 INFO [stderr] 2 |     pub fn func2() {
Dec 11 11:59:41.813 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 11 11:59:41.813 INFO [stderr]   |
Dec 11 11:59:41.813 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 11:59:41.813 INFO [stderr] 
Dec 11 11:59:41.813 INFO [stderr] warning: function is never used: `goodbye`
Dec 11 11:59:41.813 INFO [stderr]  --> src/english/farewells.rs:1:1
Dec 11 11:59:41.814 INFO [stderr]   |
Dec 11 11:59:41.814 INFO [stderr] 1 | fn goodbye() -> String {
Dec 11 11:59:41.814 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.814 INFO [stderr] 
Dec 11 11:59:41.814 INFO [stderr] warning: function is never used: `hello`
Dec 11 11:59:41.814 INFO [stderr]  --> src/japanese/greetings.rs:1:1
Dec 11 11:59:41.814 INFO [stderr]   |
Dec 11 11:59:41.814 INFO [stderr] 1 | fn hello() -> String {
Dec 11 11:59:41.814 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.814 INFO [stderr] 
Dec 11 11:59:41.814 INFO [stderr] warning: function is never used: `goodbye`
Dec 11 11:59:41.814 INFO [stderr]  --> src/japanese/farewells.rs:1:1
Dec 11 11:59:41.814 INFO [stderr]   |
Dec 11 11:59:41.814 INFO [stderr] 1 | fn goodbye() -> String {
Dec 11 11:59:41.814 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.814 INFO [stderr] 
Dec 11 11:59:41.820 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 11:59:41.820 INFO [stderr]   --> src/main.rs:32:3
Dec 11 11:59:41.820 INFO [stderr]    |
Dec 11 11:59:41.820 INFO [stderr] 32 |   server.listen("127.0.0.1:6767");
Dec 11 11:59:41.820 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:59:41.820 INFO [stderr]    |
Dec 11 11:59:41.820 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 11:59:41.820 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 11:59:41.820 INFO [stderr] 
Dec 11 11:59:41.844 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.89s
Dec 11 11:59:41.847 INFO [stderr] su: No module specific data is present
Dec 11 11:59:42.678 INFO running `"docker" "inspect" "0f1fa6018aa855f68fd5cf35ecc6ad620635d2450ed4f07861669ede50c53f1c"`
Dec 11 11:59:42.938 INFO running `"docker" "rm" "-f" "0f1fa6018aa855f68fd5cf35ecc6ad620635d2450ed4f07861669ede50c53f1c"`
Dec 11 11:59:43.146 INFO [stdout] 0f1fa6018aa855f68fd5cf35ecc6ad620635d2450ed4f07861669ede50c53f1c