[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#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Arjun4522/krat on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2f04ab6f31fce5b043bc4e3caa6bf86d8e8ca699b3bec1478c138edf7eefb49c [INFO] running `Command { std: "docker" "start" "-a" "2f04ab6f31fce5b043bc4e3caa6bf86d8e8ca699b3bec1478c138edf7eefb49c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2f04ab6f31fce5b043bc4e3caa6bf86d8e8ca699b3bec1478c138edf7eefb49c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f04ab6f31fce5b043bc4e3caa6bf86d8e8ca699b3bec1478c138edf7eefb49c", kill_on_drop: false }` [INFO] [stdout] 2f04ab6f31fce5b043bc4e3caa6bf86d8e8ca699b3bec1478c138edf7eefb49c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 05ba0526f91425e8f488abdacaf4a94944aedbe34f110a002e08255455847db5 [INFO] running `Command { std: "docker" "start" "-a" "05ba0526f91425e8f488abdacaf4a94944aedbe34f110a002e08255455847db5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [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: 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: 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 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 0.61s [INFO] running `Command { std: "docker" "inspect" "05ba0526f91425e8f488abdacaf4a94944aedbe34f110a002e08255455847db5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "05ba0526f91425e8f488abdacaf4a94944aedbe34f110a002e08255455847db5", kill_on_drop: false }` [INFO] [stdout] 05ba0526f91425e8f488abdacaf4a94944aedbe34f110a002e08255455847db5 [INFO] checking Arjun4522/krat against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjun4522%2Fkrat" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Arjun4522/krat on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2ff5896000683cc99923772ca91c6b8de5d70b91e8516e1f48d14c9ffcd8cc0f [INFO] running `Command { std: "docker" "start" "-a" "2ff5896000683cc99923772ca91c6b8de5d70b91e8516e1f48d14c9ffcd8cc0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2ff5896000683cc99923772ca91c6b8de5d70b91e8516e1f48d14c9ffcd8cc0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ff5896000683cc99923772ca91c6b8de5d70b91e8516e1f48d14c9ffcd8cc0f", kill_on_drop: false }` [INFO] [stdout] 2ff5896000683cc99923772ca91c6b8de5d70b91e8516e1f48d14c9ffcd8cc0f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8bd242d5fb24fc1a2d229af42feb70c696fd662fc35db0ca28abbd067a881ca7 [INFO] running `Command { std: "docker" "start" "-a" "8bd242d5fb24fc1a2d229af42feb70c696fd662fc35db0ca28abbd067a881ca7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [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: 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: 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] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider giving `child` an explicit type [INFO] [stdout] | [INFO] [stdout] 27 | let child: /* Type */ = match unsafe { libc::fork() } { [INFO] [stdout] | ++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let child = match unsafe { libc::fork() } { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider giving `child` an explicit type [INFO] [stdout] | [INFO] [stdout] 27 | let child: /* Type */ = match unsafe { libc::fork() } { [INFO] [stdout] | ++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `krat` (bin "krat") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `krat` (bin "krat" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "8bd242d5fb24fc1a2d229af42feb70c696fd662fc35db0ca28abbd067a881ca7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bd242d5fb24fc1a2d229af42feb70c696fd662fc35db0ca28abbd067a881ca7", kill_on_drop: false }` [INFO] [stdout] 8bd242d5fb24fc1a2d229af42feb70c696fd662fc35db0ca28abbd067a881ca7