[INFO] cloning repository https://github.com/spacemeowx2/gugugu [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spacemeowx2/gugugu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fgugugu", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fgugugu'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6398163bc667539c618c1fc98e93e5afdf1891cb [INFO] checking spacemeowx2/gugugu against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fgugugu" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/spacemeowx2/gugugu 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] removed /workspace/builds/worker-1-tc1/source/rust-toolchain [INFO] started tweaking git repo https://github.com/spacemeowx2/gugugu [INFO] finished tweaking git repo https://github.com/spacemeowx2/gugugu [INFO] tweaked toml for git repo https://github.com/spacemeowx2/gugugu written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/spacemeowx2/gugugu 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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded async-attributes v1.1.1 [INFO] [stderr] Downloaded async-global-executor v1.4.3 [INFO] [stderr] Downloaded nb-connect v1.0.2 [INFO] [stderr] Downloaded async-std v1.8.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] fe57d539b9a09833b077a2d3719c5f16ea31aa1d33af143fda45deec3ced30f4 [INFO] running `Command { std: "docker" "start" "-a" "fe57d539b9a09833b077a2d3719c5f16ea31aa1d33af143fda45deec3ced30f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe57d539b9a09833b077a2d3719c5f16ea31aa1d33af143fda45deec3ced30f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe57d539b9a09833b077a2d3719c5f16ea31aa1d33af143fda45deec3ced30f4", kill_on_drop: false }` [INFO] [stdout] fe57d539b9a09833b077a2d3719c5f16ea31aa1d33af143fda45deec3ced30f4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 04509480bece7a24d33901d1461e819560665e06168ddcfe768ca317fd45c51b [INFO] running `Command { std: "docker" "start" "-a" "04509480bece7a24d33901d1461e819560665e06168ddcfe768ca317fd45c51b", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking futures-io v0.3.8 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking pin-project-lite v0.2.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking async-io v1.3.1 [INFO] [stderr] Checking async-executor v1.4.0 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking async-global-executor v1.4.3 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.8.0 [INFO] [stderr] Checking gugugu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 10 | / loop { [INFO] [stdout] 11 | | let (n, peer) = socket.recv_from(&mut buf).await?; [INFO] [stdout] 12 | | socket.send_to(&buf[..n], &peer).await?; [INFO] [stdout] 13 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 14 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 10 | / loop { [INFO] [stdout] 11 | | let (n, peer) = socket.recv_from(&mut buf).await?; [INFO] [stdout] 12 | | socket.send_to(&buf[..n], &peer).await?; [INFO] [stdout] 13 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 14 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.11s [INFO] running `Command { std: "docker" "inspect" "04509480bece7a24d33901d1461e819560665e06168ddcfe768ca317fd45c51b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04509480bece7a24d33901d1461e819560665e06168ddcfe768ca317fd45c51b", kill_on_drop: false }` [INFO] [stdout] 04509480bece7a24d33901d1461e819560665e06168ddcfe768ca317fd45c51b [INFO] checking spacemeowx2/gugugu against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fgugugu" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/spacemeowx2/gugugu 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] removed /workspace/builds/worker-1-tc2/source/rust-toolchain [INFO] started tweaking git repo https://github.com/spacemeowx2/gugugu [INFO] finished tweaking git repo https://github.com/spacemeowx2/gugugu [INFO] tweaked toml for git repo https://github.com/spacemeowx2/gugugu written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/spacemeowx2/gugugu 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5896e628f5b70558d21e9ea85944ec9461bfdef823939d1ddfe294d85960a2f4 [INFO] running `Command { std: "docker" "start" "-a" "5896e628f5b70558d21e9ea85944ec9461bfdef823939d1ddfe294d85960a2f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5896e628f5b70558d21e9ea85944ec9461bfdef823939d1ddfe294d85960a2f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5896e628f5b70558d21e9ea85944ec9461bfdef823939d1ddfe294d85960a2f4", kill_on_drop: false }` [INFO] [stdout] 5896e628f5b70558d21e9ea85944ec9461bfdef823939d1ddfe294d85960a2f4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 91869188a800b579fe3733411e0488da2281866b55f21676cbb60da75a39fdc3 [INFO] running `Command { std: "docker" "start" "-a" "91869188a800b579fe3733411e0488da2281866b55f21676cbb60da75a39fdc3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking futures-io v0.3.8 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking pin-project-lite v0.2.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking async-executor v1.4.0 [INFO] [stderr] Checking async-io v1.3.1 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking async-global-executor v1.4.3 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.8.0 [INFO] [stderr] Checking gugugu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 10 | / loop { [INFO] [stdout] 11 | | let (n, peer) = socket.recv_from(&mut buf).await?; [INFO] [stdout] 12 | | socket.send_to(&buf[..n], &peer).await?; [INFO] [stdout] 13 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 14 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 10 | / loop { [INFO] [stdout] 11 | | let (n, peer) = socket.recv_from(&mut buf).await?; [INFO] [stdout] 12 | | socket.send_to(&buf[..n], &peer).await?; [INFO] [stdout] 13 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 14 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.76s [INFO] running `Command { std: "docker" "inspect" "91869188a800b579fe3733411e0488da2281866b55f21676cbb60da75a39fdc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91869188a800b579fe3733411e0488da2281866b55f21676cbb60da75a39fdc3", kill_on_drop: false }` [INFO] [stdout] 91869188a800b579fe3733411e0488da2281866b55f21676cbb60da75a39fdc3