Dec 17 17:59:57.823 INFO checking pepeul1191/rust-tutorial against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 17:59:57.824 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 17:59:58.248 INFO [stdout] 6e0bb039d5ecf7f93778c82fb99c606c64d7d251a2b5e121147cf5a0ebaa9769
Dec 17 17:59:58.250 INFO running `"docker" "start" "-a" "6e0bb039d5ecf7f93778c82fb99c606c64d7d251a2b5e121147cf5a0ebaa9769"`
Dec 17 17:59:59.631 INFO [stderr]     Checking groupable v0.2.0
Dec 17 17:59:59.631 INFO [stderr]     Checking mustache v0.8.2
Dec 17 17:59:59.631 INFO [stderr]     Checking regex v0.2.5
Dec 17 17:59:59.638 INFO [stderr]     Checking hyper v0.10.13
Dec 17 18:00:05.204 INFO [stderr]     Checking nickel v0.10.1
Dec 17 18:00:07.195 INFO [stderr]     Checking nickel-demo v0.1.0 (/opt/crater/workdir)
Dec 17 18:00:07.588 INFO [stderr] warning: unused variable: `is_it_true`
Dec 17 18:00:07.588 INFO [stderr]   --> src/main.rs:11:7
Dec 17 18:00:07.588 INFO [stderr]    |
Dec 17 18:00:07.588 INFO [stderr] 11 |   let is_it_true: bool = true;
Dec 17 18:00:07.588 INFO [stderr]    |       ^^^^^^^^^^ help: consider using `_is_it_true` instead
Dec 17 18:00:07.589 INFO [stderr]    |
Dec 17 18:00:07.589 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 18:00:07.589 INFO [stderr] 
Dec 17 18:00:07.589 INFO [stderr] warning: unused variable: `let_x`
Dec 17 18:00:07.589 INFO [stderr]   --> src/main.rs:12:7
Dec 17 18:00:07.589 INFO [stderr]    |
Dec 17 18:00:07.589 INFO [stderr] 12 |   let let_x: char = 'x';
Dec 17 18:00:07.589 INFO [stderr]    |       ^^^^^ help: consider using `_let_x` instead
Dec 17 18:00:07.589 INFO [stderr] 
Dec 17 18:00:07.589 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:00:07.589 INFO [stderr]   --> src/main.rs:10:7
Dec 17 18:00:07.589 INFO [stderr]    |
Dec 17 18:00:07.589 INFO [stderr] 10 |   let mut num: i32 = 10;
Dec 17 18:00:07.589 INFO [stderr]    |       ----^^^
Dec 17 18:00:07.589 INFO [stderr]    |       |
Dec 17 18:00:07.589 INFO [stderr]    |       help: remove this `mut`
Dec 17 18:00:07.589 INFO [stderr]    |
Dec 17 18:00:07.589 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:00:07.589 INFO [stderr] 
Dec 17 18:00:07.592 INFO [stderr] warning: function is never used: `func2`
Dec 17 18:00:07.592 INFO [stderr]  --> src/constants.rs:2:2
Dec 17 18:00:07.592 INFO [stderr]   |
Dec 17 18:00:07.593 INFO [stderr] 2 |     pub fn func2() {
Dec 17 18:00:07.593 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 17 18:00:07.593 INFO [stderr]   |
Dec 17 18:00:07.593 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:00:07.593 INFO [stderr] 
Dec 17 18:00:07.593 INFO [stderr] warning: function is never used: `goodbye`
Dec 17 18:00:07.593 INFO [stderr]  --> src/english/farewells.rs:1:1
Dec 17 18:00:07.593 INFO [stderr]   |
Dec 17 18:00:07.593 INFO [stderr] 1 | fn goodbye() -> String {
Dec 17 18:00:07.593 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.593 INFO [stderr] 
Dec 17 18:00:07.593 INFO [stderr] warning: function is never used: `hello`
Dec 17 18:00:07.593 INFO [stderr]  --> src/japanese/greetings.rs:1:1
Dec 17 18:00:07.593 INFO [stderr]   |
Dec 17 18:00:07.593 INFO [stderr] 1 | fn hello() -> String {
Dec 17 18:00:07.593 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.593 INFO [stderr] 
Dec 17 18:00:07.593 INFO [stderr] warning: function is never used: `goodbye`
Dec 17 18:00:07.593 INFO [stderr]  --> src/japanese/farewells.rs:1:1
Dec 17 18:00:07.593 INFO [stderr]   |
Dec 17 18:00:07.593 INFO [stderr] 1 | fn goodbye() -> String {
Dec 17 18:00:07.593 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.593 INFO [stderr] 
Dec 17 18:00:07.593 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:00:07.593 INFO [stderr]   --> src/main.rs:32:3
Dec 17 18:00:07.593 INFO [stderr]    |
Dec 17 18:00:07.593 INFO [stderr] 32 |   server.listen("127.0.0.1:6767");
Dec 17 18:00:07.594 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.594 INFO [stderr]    |
Dec 17 18:00:07.594 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 18:00:07.594 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:00:07.594 INFO [stderr] 
Dec 17 18:00:07.694 INFO [stderr] warning: unused variable: `is_it_true`
Dec 17 18:00:07.694 INFO [stderr]   --> src/main.rs:11:7
Dec 17 18:00:07.695 INFO [stderr]    |
Dec 17 18:00:07.695 INFO [stderr] 11 |   let is_it_true: bool = true;
Dec 17 18:00:07.695 INFO [stderr]    |       ^^^^^^^^^^ help: consider using `_is_it_true` instead
Dec 17 18:00:07.696 INFO [stderr]    |
Dec 17 18:00:07.696 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 18:00:07.696 INFO [stderr] 
Dec 17 18:00:07.696 INFO [stderr] warning: unused variable: `let_x`
Dec 17 18:00:07.697 INFO [stderr]   --> src/main.rs:12:7
Dec 17 18:00:07.697 INFO [stderr]    |
Dec 17 18:00:07.697 INFO [stderr] 12 |   let let_x: char = 'x';
Dec 17 18:00:07.697 INFO [stderr]    |       ^^^^^ help: consider using `_let_x` instead
Dec 17 18:00:07.697 INFO [stderr] 
Dec 17 18:00:07.711 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:00:07.711 INFO [stderr]   --> src/main.rs:10:7
Dec 17 18:00:07.712 INFO [stderr]    |
Dec 17 18:00:07.712 INFO [stderr] 10 |   let mut num: i32 = 10;
Dec 17 18:00:07.712 INFO [stderr]    |       ----^^^
Dec 17 18:00:07.712 INFO [stderr]    |       |
Dec 17 18:00:07.713 INFO [stderr]    |       help: remove this `mut`
Dec 17 18:00:07.713 INFO [stderr]    |
Dec 17 18:00:07.714 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:00:07.714 INFO [stderr] 
Dec 17 18:00:07.714 INFO [stderr] warning: function is never used: `func2`
Dec 17 18:00:07.715 INFO [stderr]  --> src/constants.rs:2:2
Dec 17 18:00:07.715 INFO [stderr]   |
Dec 17 18:00:07.715 INFO [stderr] 2 |     pub fn func2() {
Dec 17 18:00:07.715 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 17 18:00:07.715 INFO [stderr]   |
Dec 17 18:00:07.715 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:00:07.715 INFO [stderr] 
Dec 17 18:00:07.715 INFO [stderr] warning: function is never used: `goodbye`
Dec 17 18:00:07.715 INFO [stderr]  --> src/english/farewells.rs:1:1
Dec 17 18:00:07.715 INFO [stderr]   |
Dec 17 18:00:07.715 INFO [stderr] 1 | fn goodbye() -> String {
Dec 17 18:00:07.715 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.715 INFO [stderr] 
Dec 17 18:00:07.715 INFO [stderr] warning: function is never used: `hello`
Dec 17 18:00:07.715 INFO [stderr]  --> src/japanese/greetings.rs:1:1
Dec 17 18:00:07.715 INFO [stderr]   |
Dec 17 18:00:07.715 INFO [stderr] 1 | fn hello() -> String {
Dec 17 18:00:07.715 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.715 INFO [stderr] 
Dec 17 18:00:07.715 INFO [stderr] warning: function is never used: `goodbye`
Dec 17 18:00:07.715 INFO [stderr]  --> src/japanese/farewells.rs:1:1
Dec 17 18:00:07.715 INFO [stderr]   |
Dec 17 18:00:07.715 INFO [stderr] 1 | fn goodbye() -> String {
Dec 17 18:00:07.715 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.715 INFO [stderr] 
Dec 17 18:00:07.715 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 18:00:07.715 INFO [stderr]   --> src/main.rs:32:3
Dec 17 18:00:07.715 INFO [stderr]    |
Dec 17 18:00:07.715 INFO [stderr] 32 |   server.listen("127.0.0.1:6767");
Dec 17 18:00:07.715 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:00:07.715 INFO [stderr]    |
Dec 17 18:00:07.716 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 18:00:07.716 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 18:00:07.716 INFO [stderr] 
Dec 17 18:00:07.749 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
Dec 17 18:00:08.600 INFO running `"docker" "inspect" "6e0bb039d5ecf7f93778c82fb99c606c64d7d251a2b5e121147cf5a0ebaa9769"`
Dec 17 18:00:08.948 INFO running `"docker" "rm" "-f" "6e0bb039d5ecf7f93778c82fb99c606c64d7d251a2b5e121147cf5a0ebaa9769"`
Dec 17 18:00:09.283 INFO [stdout] 6e0bb039d5ecf7f93778c82fb99c606c64d7d251a2b5e121147cf5a0ebaa9769