Dec 11 05:47:58.897 INFO checking yagince/programming-rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 05:47:58.897 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 05:47:59.380 INFO [stdout] b68b8ae3661306ef05d621d913554948cb8b338bba51b20726188dbce4dab4ae
Dec 11 05:47:59.388 INFO running `"docker" "start" "-a" "b68b8ae3661306ef05d621d913554948cb8b338bba51b20726188dbce4dab4ae"`
Dec 11 05:48:01.164 INFO [stderr] usermod: no changes
Dec 11 05:48:01.240 INFO [stderr]     Checking samples v0.1.0 (/source)
Dec 11 05:48:02.020 INFO [stderr] warning: field is never used: `y`
Dec 11 05:48:02.020 INFO [stderr]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
Dec 11 05:48:02.020 INFO [stderr]   |
Dec 11 05:48:02.020 INFO [stderr] 3 |     y: &'b i32,
Dec 11 05:48:02.020 INFO [stderr]   |     ^^^^^^^^^^
Dec 11 05:48:02.020 INFO [stderr]   |
Dec 11 05:48:02.020 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 05:48:02.020 INFO [stderr] 
Dec 11 05:48:02.152 INFO [stderr] warning: unused import: `std::io::Result`
Dec 11 05:48:02.152 INFO [stderr]  --> src/bin/6_4_1_if_let.rs:2:5
Dec 11 05:48:02.152 INFO [stderr]   |
Dec 11 05:48:02.152 INFO [stderr] 2 | use std::io::Result;
Dec 11 05:48:02.152 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 05:48:02.152 INFO [stderr]   |
Dec 11 05:48:02.152 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 05:48:02.152 INFO [stderr] 
Dec 11 05:48:02.384 INFO [stderr] warning: unused variable: `t`
Dec 11 05:48:02.384 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:9:9
Dec 11 05:48:02.384 INFO [stderr]   |
Dec 11 05:48:02.384 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
Dec 11 05:48:02.384 INFO [stderr]   |         ^ help: consider using `_t` instead
Dec 11 05:48:02.384 INFO [stderr]   |
Dec 11 05:48:02.384 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 05:48:02.384 INFO [stderr] 
Dec 11 05:48:02.404 INFO [stderr] warning: unused variable: `u`
Dec 11 05:48:02.404 INFO [stderr]   --> src/bin/4_4_rc_arc.rs:10:9
Dec 11 05:48:02.404 INFO [stderr]    |
Dec 11 05:48:02.404 INFO [stderr] 10 |     let u = s.clone();
Dec 11 05:48:02.404 INFO [stderr]    |         ^ help: consider using `_u` instead
Dec 11 05:48:02.404 INFO [stderr] 
Dec 11 05:48:02.446 INFO [stderr] warning: variable does not need to be mutable
Dec 11 05:48:02.446 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:7:9
Dec 11 05:48:02.446 INFO [stderr]   |
Dec 11 05:48:02.446 INFO [stderr] 7 |     let mut s = Rc::new("hoge".to_string());
Dec 11 05:48:02.446 INFO [stderr]   |         ----^
Dec 11 05:48:02.446 INFO [stderr]   |         |
Dec 11 05:48:02.446 INFO [stderr]   |         help: remove this `mut`
Dec 11 05:48:02.446 INFO [stderr]   |
Dec 11 05:48:02.446 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 05:48:02.446 INFO [stderr] 
Dec 11 05:48:02.520 INFO [stderr] warning: unused variable: `aside`
Dec 11 05:48:02.520 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:11:9
Dec 11 05:48:02.520 INFO [stderr]    |
Dec 11 05:48:02.520 INFO [stderr] 11 |     let aside = v;
Dec 11 05:48:02.520 INFO [stderr]    |         ^^^^^ help: consider using `_aside` instead
Dec 11 05:48:02.520 INFO [stderr]    |
Dec 11 05:48:02.520 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 05:48:02.520 INFO [stderr] 
Dec 11 05:48:02.520 INFO [stderr] warning: unused variable: `r1`
Dec 11 05:48:02.520 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:28:9
Dec 11 05:48:02.520 INFO [stderr]    |
Dec 11 05:48:02.520 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
Dec 11 05:48:02.520 INFO [stderr]    |         ^^ help: consider using `_r1` instead
Dec 11 05:48:02.520 INFO [stderr] 
Dec 11 05:48:03.060 INFO [stderr] warning: unused variable: `aside`
Dec 11 05:48:03.060 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:11:9
Dec 11 05:48:03.060 INFO [stderr]    |
Dec 11 05:48:03.060 INFO [stderr] 11 |     let aside = v;
Dec 11 05:48:03.060 INFO [stderr]    |         ^^^^^ help: consider using `_aside` instead
Dec 11 05:48:03.060 INFO [stderr]    |
Dec 11 05:48:03.060 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 05:48:03.060 INFO [stderr] 
Dec 11 05:48:03.060 INFO [stderr] warning: unused variable: `r1`
Dec 11 05:48:03.060 INFO [stderr]   --> src/bin/5_3_share_refenrence.rs:28:9
Dec 11 05:48:03.060 INFO [stderr]    |
Dec 11 05:48:03.060 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
Dec 11 05:48:03.060 INFO [stderr]    |         ^^ help: consider using `_r1` instead
Dec 11 05:48:03.060 INFO [stderr] 
Dec 11 05:48:03.347 INFO [stderr] warning: field is never used: `y`
Dec 11 05:48:03.347 INFO [stderr]  --> src/bin/5_2_6_lifetime_parameter.rs:3:5
Dec 11 05:48:03.347 INFO [stderr]   |
Dec 11 05:48:03.347 INFO [stderr] 3 |     y: &'b i32,
Dec 11 05:48:03.347 INFO [stderr]   |     ^^^^^^^^^^
Dec 11 05:48:03.364 INFO [stderr]   |
Dec 11 05:48:03.364 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 05:48:03.365 INFO [stderr] 
Dec 11 05:48:03.856 INFO [stderr] warning: unused import: `std::io::Result`
Dec 11 05:48:03.856 INFO [stderr]  --> src/bin/6_4_1_if_let.rs:2:5
Dec 11 05:48:03.856 INFO [stderr]   |
Dec 11 05:48:03.856 INFO [stderr] 2 | use std::io::Result;
Dec 11 05:48:03.856 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 05:48:03.878 INFO [stderr]   |
Dec 11 05:48:03.878 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 05:48:03.879 INFO [stderr] 
Dec 11 05:48:04.288 INFO [stderr] warning: unused variable: `a_2`
Dec 11 05:48:04.288 INFO [stderr]  --> src/bin/4_3_copy.rs:6:9
Dec 11 05:48:04.288 INFO [stderr]   |
Dec 11 05:48:04.288 INFO [stderr] 6 |     let a_2 = a;
Dec 11 05:48:04.288 INFO [stderr]   |         ^^^ help: consider using `_a_2` instead
Dec 11 05:48:04.288 INFO [stderr]   |
Dec 11 05:48:04.288 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 05:48:04.288 INFO [stderr] 
Dec 11 05:48:04.312 INFO [stderr] warning: unused variable: `t`
Dec 11 05:48:04.312 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:9:9
Dec 11 05:48:04.312 INFO [stderr]   |
Dec 11 05:48:04.312 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
Dec 11 05:48:04.312 INFO [stderr]   |         ^ help: consider using `_t` instead
Dec 11 05:48:04.312 INFO [stderr]   |
Dec 11 05:48:04.312 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 05:48:04.312 INFO [stderr] 
Dec 11 05:48:04.313 INFO [stderr] warning: unused variable: `u`
Dec 11 05:48:04.313 INFO [stderr]   --> src/bin/4_4_rc_arc.rs:10:9
Dec 11 05:48:04.313 INFO [stderr]    |
Dec 11 05:48:04.313 INFO [stderr] 10 |     let u = s.clone();
Dec 11 05:48:04.313 INFO [stderr]    |         ^ help: consider using `_u` instead
Dec 11 05:48:04.313 INFO [stderr] 
Dec 11 05:48:04.352 INFO [stderr] warning: variable does not need to be mutable
Dec 11 05:48:04.352 INFO [stderr]  --> src/bin/4_4_rc_arc.rs:7:9
Dec 11 05:48:04.352 INFO [stderr]   |
Dec 11 05:48:04.352 INFO [stderr] 7 |     let mut s = Rc::new("hoge".to_string());
Dec 11 05:48:04.352 INFO [stderr]   |         ----^
Dec 11 05:48:04.352 INFO [stderr]   |         |
Dec 11 05:48:04.352 INFO [stderr]   |         help: remove this `mut`
Dec 11 05:48:04.353 INFO [stderr]   |
Dec 11 05:48:04.353 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 05:48:04.353 INFO [stderr] 
Dec 11 05:48:04.428 INFO [stderr] warning: unused variable: `a_2`
Dec 11 05:48:04.428 INFO [stderr]  --> src/bin/4_3_copy.rs:6:9
Dec 11 05:48:04.428 INFO [stderr]   |
Dec 11 05:48:04.428 INFO [stderr] 6 |     let a_2 = a;
Dec 11 05:48:04.428 INFO [stderr]   |         ^^^ help: consider using `_a_2` instead
Dec 11 05:48:04.428 INFO [stderr]   |
Dec 11 05:48:04.428 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 05:48:04.428 INFO [stderr] 
Dec 11 05:48:04.483 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
Dec 11 05:48:04.486 INFO [stderr] su: No module specific data is present
Dec 11 05:48:05.639 INFO running `"docker" "inspect" "b68b8ae3661306ef05d621d913554948cb8b338bba51b20726188dbce4dab4ae"`
Dec 11 05:48:06.004 INFO running `"docker" "rm" "-f" "b68b8ae3661306ef05d621d913554948cb8b338bba51b20726188dbce4dab4ae"`
Dec 11 05:48:06.325 INFO [stdout] b68b8ae3661306ef05d621d913554948cb8b338bba51b20726188dbce4dab4ae