[INFO] updating cached repository yagince/programming-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/yagince/programming-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/yagince/programming-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/yagince/programming-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/yagince/programming-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/yagince/programming-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yagince/programming-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yagince/programming-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2fb11ea3e31e1d7584b541293cb56108d4b4ac0f [INFO] sha for GitHub repo yagince/programming-rust: 2fb11ea3e31e1d7584b541293cb56108d4b4ac0f [INFO] validating manifest of yagince/programming-rust on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of yagince/programming-rust on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing yagince/programming-rust [INFO] finished frobbing yagince/programming-rust [INFO] frobbed toml for yagince/programming-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/yagince/programming-rust/Cargo.toml [INFO] started frobbing yagince/programming-rust [INFO] finished frobbing yagince/programming-rust [INFO] frobbed toml for yagince/programming-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yagince/programming-rust/Cargo.toml [INFO] crate yagince/programming-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing yagince/programming-rust against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yagince/programming-rust:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] b75a34cc0008da858f67c05270820a559fe032b189166c9dcf1b159e630f2882 [INFO] running `"docker" "start" "-a" "b75a34cc0008da858f67c05270820a559fe032b189166c9dcf1b159e630f2882"` [INFO] [stderr] Compiling samples v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `a_2` [INFO] [stderr] --> src/bin/4_3_copy.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let a_2 = a; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_a_2` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/bin/4_4_rc_arc.rs:9:9 [INFO] [stderr] | [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 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/bin/4_4_rc_arc.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let u = s.clone(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/4_4_rc_arc.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | let mut s = Rc::new("hoge".to_string()); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] --> src/bin/5_2_6_lifetime_parameter.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | y: &'b i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Result` [INFO] [stderr] --> src/bin/6_4_1_if_let.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::io::Result; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `aside` [INFO] [stderr] --> src/bin/5_3_share_refenrence.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | let aside = v; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_aside` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r1` [INFO] [stderr] --> src/bin/5_3_share_refenrence.rs:28:9 [INFO] [stderr] | [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 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r1` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.89s [INFO] running `"docker" "inspect" "b75a34cc0008da858f67c05270820a559fe032b189166c9dcf1b159e630f2882"` [INFO] running `"docker" "rm" "-f" "b75a34cc0008da858f67c05270820a559fe032b189166c9dcf1b159e630f2882"` [INFO] [stdout] b75a34cc0008da858f67c05270820a559fe032b189166c9dcf1b159e630f2882 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yagince/programming-rust:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] 91d342fc607fa0abb69fb6292656b5132030b529ea9c9c0b0b320ac34e824736 [INFO] running `"docker" "start" "-a" "91d342fc607fa0abb69fb6292656b5132030b529ea9c9c0b0b320ac34e824736"` [INFO] [stderr] Compiling samples v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::io::Result` [INFO] [stderr] --> src/bin/6_4_1_if_let.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::io::Result; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_2` [INFO] [stderr] --> src/bin/4_3_copy.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let a_2 = a; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_a_2` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `aside` [INFO] [stderr] --> src/bin/5_3_share_refenrence.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | let aside = v; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_aside` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r1` [INFO] [stderr] --> src/bin/5_3_share_refenrence.rs:28:9 [INFO] [stderr] | [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 [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_r1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/bin/4_4_rc_arc.rs:9:9 [INFO] [stderr] | [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 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_t` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/bin/4_4_rc_arc.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let u = s.clone(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/4_4_rc_arc.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | let mut s = Rc::new("hoge".to_string()); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/bin/5_2_6_lifetime_parameter.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | y: &'b i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.90s [INFO] running `"docker" "inspect" "91d342fc607fa0abb69fb6292656b5132030b529ea9c9c0b0b320ac34e824736"` [INFO] running `"docker" "rm" "-f" "91d342fc607fa0abb69fb6292656b5132030b529ea9c9c0b0b320ac34e824736"` [INFO] [stdout] 91d342fc607fa0abb69fb6292656b5132030b529ea9c9c0b0b320ac34e824736 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yagince/programming-rust:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"` [INFO] [stdout] 1f6bbce5fbf99ef346b4d2bd4b378d67d7ac5a3c014481ff1945888c05a0630b [INFO] running `"docker" "start" "-a" "1f6bbce5fbf99ef346b4d2bd4b378d67d7ac5a3c014481ff1945888c05a0630b"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/4_3_copy-4c304ddb9802054a [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/4_4_rc_arc-b69dd0308e82666f [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/5_2_2_references_static-d7992baa270ad177 [INFO] [stderr] Running /opt/crater/target/debug/deps/5_2_4_return_references-74d181f1d164ba39 [INFO] [stderr] Running /opt/crater/target/debug/deps/5_2_6_lifetime_parameter-117353158b0665bb [INFO] [stderr] Running /opt/crater/target/debug/deps/5_2_7_self_lifetime-e6359ca5a8cd78cb [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/5_3_share_refenrence-46a5e7e737a40194 [INFO] [stderr] Running /opt/crater/target/debug/deps/6_13_cast-6cc1244783006548 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/6_4_1_if_let-11dd43b06dc5778a [INFO] [stderr] Running /opt/crater/target/debug/deps/6_5_loop-34062e43b6c32fb7 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/6_7_loop-41f5d1a80080f5f6 [INFO] [stderr] Running /opt/crater/target/debug/deps/samples-3da08286635b32b9 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "1f6bbce5fbf99ef346b4d2bd4b378d67d7ac5a3c014481ff1945888c05a0630b"` [INFO] running `"docker" "rm" "-f" "1f6bbce5fbf99ef346b4d2bd4b378d67d7ac5a3c014481ff1945888c05a0630b"` [INFO] [stdout] 1f6bbce5fbf99ef346b4d2bd4b378d67d7ac5a3c014481ff1945888c05a0630b