[INFO] updating cached repository https://github.com/yagince/programming-rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2fb11ea3e31e1d7584b541293cb56108d4b4ac0f [INFO] testing yagince/programming-rust against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyagince%2Fprogramming-rust" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yagince/programming-rust on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/yagince/programming-rust [INFO] finished tweaking git repo https://github.com/yagince/programming-rust [INFO] tweaked toml for git repo https://github.com/yagince/programming-rust written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/yagince/programming-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 90b33863839ff70154454a6f66c7c47de3bdee8c2d82e4b69bd4d67cb957af1b [INFO] running `"docker" "start" "-a" "90b33863839ff70154454a6f66c7c47de3bdee8c2d82e4b69bd4d67cb957af1b"` [INFO] [stderr] Compiling samples v0.1.0 (/opt/rustwide/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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: 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: field is never read: `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] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.80s [INFO] running `"docker" "inspect" "90b33863839ff70154454a6f66c7c47de3bdee8c2d82e4b69bd4d67cb957af1b"` [INFO] running `"docker" "rm" "-f" "90b33863839ff70154454a6f66c7c47de3bdee8c2d82e4b69bd4d67cb957af1b"` [INFO] [stdout] 90b33863839ff70154454a6f66c7c47de3bdee8c2d82e4b69bd4d67cb957af1b [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stdout] f1b10729b1e8049338108f2b94951d121d80bbd3b119c6093d7079eef99b82cf [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "f1b10729b1e8049338108f2b94951d121d80bbd3b119c6093d7079eef99b82cf"` [INFO] [stderr] Compiling samples v0.1.0 (/opt/rustwide/workdir) [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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: 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: if this is intentional, prefix it 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: if this is intentional, prefix it with an underscore: `_r1` [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: `a_2` [INFO] [stderr] --> src/bin/4_3_copy.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let a_2 = a; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_a_2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `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] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.16s [INFO] running `"docker" "inspect" "f1b10729b1e8049338108f2b94951d121d80bbd3b119c6093d7079eef99b82cf"` [INFO] running `"docker" "rm" "-f" "f1b10729b1e8049338108f2b94951d121d80bbd3b119c6093d7079eef99b82cf"` [INFO] [stdout] f1b10729b1e8049338108f2b94951d121d80bbd3b119c6093d7079eef99b82cf [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stdout] 72b0f374c1e9650ef8d2cd968f80bb37f77afed54b963e4ddd9d5adb777e3d03 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "72b0f374c1e9650ef8d2cd968f80bb37f77afed54b963e4ddd9d5adb777e3d03"` [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: 1 warning emitted [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: if this is intentional, prefix it with an underscore: `_a_2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [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: if this is intentional, prefix it 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: if this is intentional, prefix it with an underscore: `_r1` [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: field is never read: `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] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.13s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/4_3_copy-5c0213fc67f96de6 [INFO] [stderr] Running /opt/rustwide/target/debug/deps/4_4_rc_arc-24d1db6deadfdcb3 [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] [stderr] Running /opt/rustwide/target/debug/deps/5_2_2_references_static-d0570d5afd3ac290 [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] [stderr] Running /opt/rustwide/target/debug/deps/5_2_4_return_references-e258ba585b865b5e [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] [stderr] Running /opt/rustwide/target/debug/deps/5_2_6_lifetime_parameter-c7ef64f8fd0fa82d [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] [stderr] Running /opt/rustwide/target/debug/deps/5_2_7_self_lifetime-54f09e67ce316582 [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] [stderr] Running /opt/rustwide/target/debug/deps/5_3_share_refenrence-ea6ec608e48c3706 [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] [stderr] Running /opt/rustwide/target/debug/deps/6_13_cast-e199c2d822afda27 [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/rustwide/target/debug/deps/6_4_1_if_let-3a3b388d0567e8f5 [INFO] [stderr] Running /opt/rustwide/target/debug/deps/6_5_loop-64c8b06e21d4a2de [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/rustwide/target/debug/deps/6_7_loop-40ccdac91d92bab3 [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] [stderr] Running /opt/rustwide/target/debug/deps/samples-446d7384bbba877b [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" "72b0f374c1e9650ef8d2cd968f80bb37f77afed54b963e4ddd9d5adb777e3d03"` [INFO] running `"docker" "rm" "-f" "72b0f374c1e9650ef8d2cd968f80bb37f77afed54b963e4ddd9d5adb777e3d03"` [INFO] [stdout] 72b0f374c1e9650ef8d2cd968f80bb37f77afed54b963e4ddd9d5adb777e3d03