[INFO] cloning repository https://github.com/Arjun4522/krat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Arjun4522/krat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bbc76cdede125bcef7b0e8200bb1fec0bbafdb4f [INFO] checking Arjun4522/krat against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat" "/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/Arjun4522/krat 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/Arjun4522/krat [INFO] finished tweaking git repo https://github.com/Arjun4522/krat [INFO] tweaked toml for git repo https://github.com/Arjun4522/krat written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Arjun4522/krat 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] 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] fc37507a741bba3707548ce4649ed7eb4aed286490ef446f1022c42984133ba6 [INFO] running `Command { std: "docker" "start" "-a" "fc37507a741bba3707548ce4649ed7eb4aed286490ef446f1022c42984133ba6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc37507a741bba3707548ce4649ed7eb4aed286490ef446f1022c42984133ba6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc37507a741bba3707548ce4649ed7eb4aed286490ef446f1022c42984133ba6", kill_on_drop: false }` [INFO] [stdout] fc37507a741bba3707548ce4649ed7eb4aed286490ef446f1022c42984133ba6 [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] e435e93f74f308942347532c436190e59c9d6a275a08b95c64eace4184f0a756 [INFO] running `Command { std: "docker" "start" "-a" "e435e93f74f308942347532c436190e59c9d6a275a08b95c64eace4184f0a756", kill_on_drop: false }` [INFO] [stderr] Checking krat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `c_int` [INFO] [stdout] --> src/main.rs:7:18 [INFO] [stdout] | [INFO] [stdout] 7 | use libc::{dup2, c_int}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | _________________- [INFO] [stdout] 28 | | -1 => { [INFO] [stdout] 29 | | eprintln!("Failed to fork"); [INFO] [stdout] 30 | | exit(1); [INFO] [stdout] ... | [INFO] [stdout] 43 | | _ => exit(0), [INFO] [stdout] 44 | | }; [INFO] [stdout] | |_____- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 45 | [INFO] [stdout] 46 | let _ = child; [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_child` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `c_int` [INFO] [stdout] --> src/main.rs:7:18 [INFO] [stdout] | [INFO] [stdout] 7 | use libc::{dup2, c_int}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | _________________- [INFO] [stdout] 28 | | -1 => { [INFO] [stdout] 29 | | eprintln!("Failed to fork"); [INFO] [stdout] 30 | | exit(1); [INFO] [stdout] ... | [INFO] [stdout] 43 | | _ => exit(0), [INFO] [stdout] 44 | | }; [INFO] [stdout] | |_____- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 45 | [INFO] [stdout] 46 | let _ = child; [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_child` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s [INFO] running `Command { std: "docker" "inspect" "e435e93f74f308942347532c436190e59c9d6a275a08b95c64eace4184f0a756", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e435e93f74f308942347532c436190e59c9d6a275a08b95c64eace4184f0a756", kill_on_drop: false }` [INFO] [stdout] e435e93f74f308942347532c436190e59c9d6a275a08b95c64eace4184f0a756 [INFO] checking Arjun4522/krat against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Arjun4522/krat on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Arjun4522/krat [INFO] finished tweaking git repo https://github.com/Arjun4522/krat [INFO] tweaked toml for git repo https://github.com/Arjun4522/krat written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Arjun4522/krat 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 69b43efb6b2400b013301ea75d7ca418b08d94b3e1ae5f37001ddfea2b37d521 [INFO] running `Command { std: "docker" "start" "-a" "69b43efb6b2400b013301ea75d7ca418b08d94b3e1ae5f37001ddfea2b37d521", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "69b43efb6b2400b013301ea75d7ca418b08d94b3e1ae5f37001ddfea2b37d521", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69b43efb6b2400b013301ea75d7ca418b08d94b3e1ae5f37001ddfea2b37d521", kill_on_drop: false }` [INFO] [stdout] 69b43efb6b2400b013301ea75d7ca418b08d94b3e1ae5f37001ddfea2b37d521 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ba12755a2d4e5376bb6e93085c6a99916a5c030d315f09ffe4b5d2eb0dfab2e2 [INFO] running `Command { std: "docker" "start" "-a" "ba12755a2d4e5376bb6e93085c6a99916a5c030d315f09ffe4b5d2eb0dfab2e2", kill_on_drop: false }` [INFO] [stderr] Checking krat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `c_int` [INFO] [stdout] --> src/main.rs:7:18 [INFO] [stdout] | [INFO] [stdout] 7 | use libc::{dup2, c_int}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | _________________- [INFO] [stdout] 28 | | -1 => { [INFO] [stdout] 29 | | eprintln!("Failed to fork"); [INFO] [stdout] 30 | | exit(1); [INFO] [stdout] ... | [INFO] [stdout] 43 | | _ => exit(0), [INFO] [stdout] 44 | | }; [INFO] [stdout] | |_____- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 45 | [INFO] [stdout] 46 | let _ = child; [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_child` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `c_int` [INFO] [stdout] --> src/main.rs:7:18 [INFO] [stdout] | [INFO] [stdout] 7 | use libc::{dup2, c_int}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | _________________- [INFO] [stdout] 28 | | -1 => { [INFO] [stdout] 29 | | eprintln!("Failed to fork"); [INFO] [stdout] 30 | | exit(1); [INFO] [stdout] ... | [INFO] [stdout] 43 | | _ => exit(0), [INFO] [stdout] 44 | | }; [INFO] [stdout] | |_____- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stdout] 45 | [INFO] [stdout] 46 | let _ = child; [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `child` [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_child` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s [INFO] running `Command { std: "docker" "inspect" "ba12755a2d4e5376bb6e93085c6a99916a5c030d315f09ffe4b5d2eb0dfab2e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba12755a2d4e5376bb6e93085c6a99916a5c030d315f09ffe4b5d2eb0dfab2e2", kill_on_drop: false }` [INFO] [stdout] ba12755a2d4e5376bb6e93085c6a99916a5c030d315f09ffe4b5d2eb0dfab2e2