Nov 27 16:44:02.531 INFO checking yagince/programming-rust against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 16:44:02.533 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 27 16:44:03.038 INFO [stdout] 8fcee94d8693ed0adde2512fe04896c0856ecc95eca9743a263b30e7ca9fa6f8
Nov 27 16:44:03.040 INFO running `"docker" "start" "-a" "8fcee94d8693ed0adde2512fe04896c0856ecc95eca9743a263b30e7ca9fa6f8"`
Nov 27 16:44:04.645 INFO [stderr] usermod: no changes
Nov 27 16:44:04.732 INFO [stderr]     Checking samples v0.1.0 (/source)
Nov 27 16:44:05.536 INFO [stderr] warning: unused import: `std::io::Result`
Nov 27 16:44:05.537 INFO [stderr]  --> src/bin/6_4_1_if_let.rs:2:5
Nov 27 16:44:05.537 INFO [stderr]   |
Nov 27 16:44:05.537 INFO [stderr] 2 | use std::io::Result;
Nov 27 16:44:05.537 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 27 16:44:05.556 INFO [stderr]   |
Nov 27 16:44:05.556 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:44:05.557 INFO [stderr] 
Nov 27 16:44:05.821 INFO [stderr] warning: field is never used: `y`
Nov 27 16:44:05.821 INFO [stderr]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
Nov 27 16:44:05.821 INFO [stderr]   |
Nov 27 16:44:05.822 INFO [stderr] 3 |     y: &'b i32,
Nov 27 16:44:05.822 INFO [stderr]   |     ^^^^^^^^^^
Nov 27 16:44:05.833 INFO [stderr] warning: unused variable: `t`
Nov 27 16:44:05.833 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:9:9
Nov 27 16:44:05.834 INFO [stderr]   |
Nov 27 16:44:05.834 INFO [stderr] 9 |     let t = s.clone(); // cloneすると参照カウントがインクリメントされるが実際はコピーされない
Nov 27 16:44:05.834 INFO [stderr]   |         ^ help: consider using `_t` instead
Nov 27 16:44:05.834 INFO [stderr]   |
Nov 27 16:44:05.835 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 27 16:44:05.835 INFO [stderr] 
Nov 27 16:44:05.835 INFO [stderr] warning: unused variable: `u`
Nov 27 16:44:05.836 INFO [stderr]   --> src/bin/4_4_rc_arc.rs:10:9
Nov 27 16:44:05.836 INFO [stderr]    |
Nov 27 16:44:05.836 INFO [stderr] 10 |     let u = s.clone();
Nov 27 16:44:05.836 INFO [stderr]    |         ^ help: consider using `_u` instead
Nov 27 16:44:05.837 INFO [stderr] 
Nov 27 16:44:05.837 INFO [stderr]   |
Nov 27 16:44:05.837 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 16:44:05.838 INFO [stderr] 
Nov 27 16:44:05.952 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:44:05.952 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:7:9
Nov 27 16:44:05.952 INFO [stderr]   |
Nov 27 16:44:05.953 INFO [stderr] 7 |     let mut s = Rc::new("hoge".to_string());
Nov 27 16:44:05.953 INFO [stderr]   |         ----^
Nov 27 16:44:05.953 INFO [stderr]   |         |
Nov 27 16:44:05.953 INFO [stderr]   |         help: remove this `mut`
Nov 27 16:44:05.953 INFO [stderr]   |
Nov 27 16:44:05.953 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 27 16:44:05.953 INFO [stderr] 
Nov 27 16:44:06.034 INFO [stderr] warning: unused variable: `aside`
Nov 27 16:44:06.034 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:11:9
Nov 27 16:44:06.034 INFO [stderr]    |
Nov 27 16:44:06.034 INFO [stderr] 11 |     let aside = v;
Nov 27 16:44:06.034 INFO [stderr]    |         ^^^^^ help: consider using `_aside` instead
Nov 27 16:44:06.035 INFO [stderr]    |
Nov 27 16:44:06.035 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 16:44:06.035 INFO [stderr] 
Nov 27 16:44:06.035 INFO [stderr] warning: unused variable: `r1`
Nov 27 16:44:06.035 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:28:9
Nov 27 16:44:06.036 INFO [stderr]    |
Nov 27 16:44:06.036 INFO [stderr] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
Nov 27 16:44:06.036 INFO [stderr]    |         ^^ help: consider using `_r1` instead
Nov 27 16:44:06.036 INFO [stderr] 
Nov 27 16:44:06.053 INFO [stderr] warning: unused variable: `aside`
Nov 27 16:44:06.053 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:11:9
Nov 27 16:44:06.053 INFO [stderr]    |
Nov 27 16:44:06.053 INFO [stderr] 11 |     let aside = v;
Nov 27 16:44:06.053 INFO [stderr]    |         ^^^^^ help: consider using `_aside` instead
Nov 27 16:44:06.077 INFO [stderr]    |
Nov 27 16:44:06.077 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 16:44:06.077 INFO [stderr] 
Nov 27 16:44:06.077 INFO [stderr] warning: unused variable: `r1`
Nov 27 16:44:06.078 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:28:9
Nov 27 16:44:06.078 INFO [stderr]    |
Nov 27 16:44:06.078 INFO [stderr] 28 |     let r1 = &mut r.1; // 可変参照から可変参照の再借用は出来る
Nov 27 16:44:06.078 INFO [stderr]    |         ^^ help: consider using `_r1` instead
Nov 27 16:44:06.078 INFO [stderr] 
Nov 27 16:44:06.900 INFO [stderr] warning: unused variable: `a_2`
Nov 27 16:44:06.901 INFO [stderr]  --> src/bin/4_3_copy.rs:6:9
Nov 27 16:44:06.901 INFO [stderr]   |
Nov 27 16:44:06.901 INFO [stderr] 6 |     let a_2 = a;
Nov 27 16:44:06.901 INFO [stderr]   |         ^^^ help: consider using `_a_2` instead
Nov 27 16:44:06.901 INFO [stderr]   |
Nov 27 16:44:06.901 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 27 16:44:06.902 INFO [stderr] 
Nov 27 16:44:07.580 INFO [stderr] warning: unused variable: `t`
Nov 27 16:44:07.580 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:9:9
Nov 27 16:44:07.580 INFO [stderr]   |
Nov 27 16:44:07.580 INFO [stderr] 9 |     let t = s.clone(); // cloneすると参照カウントがインクリメントされるが実際はコピーされない
Nov 27 16:44:07.580 INFO [stderr]   |         ^ help: consider using `_t` instead
Nov 27 16:44:07.582 INFO [stderr]   |
Nov 27 16:44:07.582 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 27 16:44:07.582 INFO [stderr] 
Nov 27 16:44:07.583 INFO [stderr] warning: unused variable: `u`
Nov 27 16:44:07.583 INFO [stderr]   --> src/bin/4_4_rc_arc.rs:10:9
Nov 27 16:44:07.583 INFO [stderr]    |
Nov 27 16:44:07.583 INFO [stderr] 10 |     let u = s.clone();
Nov 27 16:44:07.583 INFO [stderr]    |         ^ help: consider using `_u` instead
Nov 27 16:44:07.588 INFO [stderr] 
Nov 27 16:44:07.592 INFO [stderr] warning: variable does not need to be mutable
Nov 27 16:44:07.592 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:7:9
Nov 27 16:44:07.592 INFO [stderr]   |
Nov 27 16:44:07.592 INFO [stderr] 7 |     let mut s = Rc::new("hoge".to_string());
Nov 27 16:44:07.592 INFO [stderr]   |         ----^
Nov 27 16:44:07.592 INFO [stderr]   |         |
Nov 27 16:44:07.592 INFO [stderr]   |         help: remove this `mut`
Nov 27 16:44:07.592 INFO [stderr]   |
Nov 27 16:44:07.592 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 27 16:44:07.592 INFO [stderr] 
Nov 27 16:44:07.676 INFO [stderr] warning: unused import: `std::io::Result`
Nov 27 16:44:07.676 INFO [stderr]  --> src/bin/6_4_1_if_let.rs:2:5
Nov 27 16:44:07.676 INFO [stderr]   |
Nov 27 16:44:07.676 INFO [stderr] 2 | use std::io::Result;
Nov 27 16:44:07.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 27 16:44:07.676 INFO [stderr]   |
Nov 27 16:44:07.676 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 16:44:07.676 INFO [stderr] 
Nov 27 16:44:07.860 INFO [stderr] warning: unused variable: `a_2`
Nov 27 16:44:07.860 INFO [stderr]  --> src/bin/4_3_copy.rs:6:9
Nov 27 16:44:07.860 INFO [stderr]   |
Nov 27 16:44:07.860 INFO [stderr] 6 |     let a_2 = a;
Nov 27 16:44:07.860 INFO [stderr]   |         ^^^ help: consider using `_a_2` instead
Nov 27 16:44:07.860 INFO [stderr]   |
Nov 27 16:44:07.860 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 27 16:44:07.860 INFO [stderr] 
Nov 27 16:44:08.012 INFO [stderr] warning: field is never used: `y`
Nov 27 16:44:08.012 INFO [stderr]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
Nov 27 16:44:08.012 INFO [stderr]   |
Nov 27 16:44:08.012 INFO [stderr] 3 |     y: &'b i32,
Nov 27 16:44:08.012 INFO [stderr]   |     ^^^^^^^^^^
Nov 27 16:44:08.012 INFO [stderr]   |
Nov 27 16:44:08.012 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 16:44:08.012 INFO [stderr] 
Nov 27 16:44:08.023 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.35s
Nov 27 16:44:08.024 INFO [stderr] su: No module specific data is present
Nov 27 16:44:09.203 INFO running `"docker" "inspect" "8fcee94d8693ed0adde2512fe04896c0856ecc95eca9743a263b30e7ca9fa6f8"`
Nov 27 16:44:09.506 INFO running `"docker" "rm" "-f" "8fcee94d8693ed0adde2512fe04896c0856ecc95eca9743a263b30e7ca9fa6f8"`
Nov 27 16:44:09.805 INFO [stdout] 8fcee94d8693ed0adde2512fe04896c0856ecc95eca9743a263b30e7ca9fa6f8