[INFO] cloning repository https://github.com/mrLSD/llvm-sample [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrLSD/llvm-sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmrLSD%2Fllvm-sample", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmrLSD%2Fllvm-sample'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e3677474457a1548d53598c7c8b11c120d0beb0f [INFO] checking mrLSD/llvm-sample against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmrLSD%2Fllvm-sample" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mrLSD/llvm-sample on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mrLSD/llvm-sample [INFO] finished tweaking git repo https://github.com/mrLSD/llvm-sample [INFO] tweaked toml for git repo https://github.com/mrLSD/llvm-sample written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mrLSD/llvm-sample already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating git repository `https://github.com/TheDan64/inkwell` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded llvm-sys v100.2.0 [INFO] [stderr] Downloaded instant v0.1.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7c09e204507ba87ddf54a8c465818094cb61c8f85efe726b15a8c6da2c19a506 [INFO] running `Command { std: "docker" "start" "-a" "7c09e204507ba87ddf54a8c465818094cb61c8f85efe726b15a8c6da2c19a506", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c09e204507ba87ddf54a8c465818094cb61c8f85efe726b15a8c6da2c19a506", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c09e204507ba87ddf54a8c465818094cb61c8f85efe726b15a8c6da2c19a506", kill_on_drop: false }` [INFO] [stdout] 7c09e204507ba87ddf54a8c465818094cb61c8f85efe726b15a8c6da2c19a506 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aa97bb1e4c929adb759a8346fda274edda2eeceeee0b1c429aa68a54684e127e [INFO] running `Command { std: "docker" "start" "-a" "aa97bb1e4c929adb759a8346fda274edda2eeceeee0b1c429aa68a54684e127e", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling proc-macro2 v1.0.23 [INFO] [stderr] Compiling regex-syntax v0.6.18 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling cc v1.0.61 [INFO] [stderr] Compiling syn v1.0.42 [INFO] [stderr] Checking smallvec v1.4.2 [INFO] [stderr] Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?rev=7b2e20f#7b2e20f9) [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Checking instant v0.1.7 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking lock_api v0.4.1 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling llvm-sys v100.2.0 [INFO] [stderr] Compiling inkwell_internals v0.2.0 (https://github.com/TheDan64/inkwell?rev=7b2e20f#7b2e20f9) [INFO] [stderr] Checking llvm v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:66:2 [INFO] [stdout] | [INFO] [stdout] 66 | std::fs::create_dir("bin"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 66 | let _ = std::fs::create_dir("bin"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:70:2 [INFO] [stdout] | [INFO] [stdout] 70 | / Command::new("ar") [INFO] [stdout] 71 | | .args(&["crs", "bin/libap.a", "bin/app.o"]) [INFO] [stdout] 72 | | .spawn() [INFO] [stdout] 73 | | .expect("Expect success") [INFO] [stdout] 74 | | .wait(); [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 70 | let _ = Command::new("ar") [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:84:2 [INFO] [stdout] | [INFO] [stdout] 84 | / Command::new("ld") [INFO] [stdout] 85 | | .args(&[ [INFO] [stdout] 86 | | "-o", "bin/ap", [INFO] [stdout] 87 | | "-dynamic-linker", [INFO] [stdout] ... | [INFO] [stdout] 95 | | .expect("Expect success") [INFO] [stdout] 96 | | .wait(); [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 84 | let _ = Command::new("ld") [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:97:2 [INFO] [stdout] | [INFO] [stdout] 97 | std::fs::remove_file(Path::new("bin/app.o")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 97 | let _ = std::fs::remove_file(Path::new("bin/app.o")); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:66:2 [INFO] [stdout] | [INFO] [stdout] 66 | std::fs::create_dir("bin"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 66 | let _ = std::fs::create_dir("bin"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:70:2 [INFO] [stdout] | [INFO] [stdout] 70 | / Command::new("ar") [INFO] [stdout] 71 | | .args(&["crs", "bin/libap.a", "bin/app.o"]) [INFO] [stdout] 72 | | .spawn() [INFO] [stdout] 73 | | .expect("Expect success") [INFO] [stdout] 74 | | .wait(); [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 70 | let _ = Command::new("ar") [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:84:2 [INFO] [stdout] | [INFO] [stdout] 84 | / Command::new("ld") [INFO] [stdout] 85 | | .args(&[ [INFO] [stdout] 86 | | "-o", "bin/ap", [INFO] [stdout] 87 | | "-dynamic-linker", [INFO] [stdout] ... | [INFO] [stdout] 95 | | .expect("Expect success") [INFO] [stdout] 96 | | .wait(); [INFO] [stdout] | |_______________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 84 | let _ = Command::new("ld") [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:97:2 [INFO] [stdout] | [INFO] [stdout] 97 | std::fs::remove_file(Path::new("bin/app.o")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 97 | let _ = std::fs::remove_file(Path::new("bin/app.o")); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.02s [INFO] running `Command { std: "docker" "inspect" "aa97bb1e4c929adb759a8346fda274edda2eeceeee0b1c429aa68a54684e127e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa97bb1e4c929adb759a8346fda274edda2eeceeee0b1c429aa68a54684e127e", kill_on_drop: false }` [INFO] [stdout] aa97bb1e4c929adb759a8346fda274edda2eeceeee0b1c429aa68a54684e127e