[INFO] cloning repository https://github.com/m-lima/rust-vai
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m-lima/rust-vai" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-lima%2Frust-vai", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-lima%2Frust-vai'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f639eb4e3147081fbca93793c751a0ac71eaffca
[INFO] checking m-lima/rust-vai against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-lima%2Frust-vai" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/m-lima/rust-vai 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/m-lima/rust-vai
[INFO] finished tweaking git repo https://github.com/m-lima/rust-vai
[INFO] tweaked toml for git repo https://github.com/m-lima/rust-vai written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/m-lima/rust-vai 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 crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded webbrowser v0.7.1
[INFO] [stderr]   Downloaded rucline v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 772bf4e6d8a63e8336f5e47e10136e466337c6618ea69e46b430581e8f4a7d88
[INFO] running `Command { std: "docker" "start" "-a" "772bf4e6d8a63e8336f5e47e10136e466337c6618ea69e46b430581e8f4a7d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "772bf4e6d8a63e8336f5e47e10136e466337c6618ea69e46b430581e8f4a7d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "772bf4e6d8a63e8336f5e47e10136e466337c6618ea69e46b430581e8f4a7d88", kill_on_drop: false }`
[INFO] [stdout] 772bf4e6d8a63e8336f5e47e10136e466337c6618ea69e46b430581e8f4a7d88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fc51e09dd0a3ef92faae62851091a7895b17df6811cf2d04a5c1249e863ebe0d
[INFO] running `Command { std: "docker" "start" "-a" "fc51e09dd0a3ef92faae62851091a7895b17df6811cf2d04a5c1249e863ebe0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking webbrowser v0.7.1
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking crossterm v0.18.2
[INFO] [stderr]     Checking rucline v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.22.3
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking ureq v2.4.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking vai-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking vai v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.68s
[INFO] running `Command { std: "docker" "inspect" "fc51e09dd0a3ef92faae62851091a7895b17df6811cf2d04a5c1249e863ebe0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc51e09dd0a3ef92faae62851091a7895b17df6811cf2d04a5c1249e863ebe0d", kill_on_drop: false }`
[INFO] [stdout] fc51e09dd0a3ef92faae62851091a7895b17df6811cf2d04a5c1249e863ebe0d
[INFO] checking m-lima/rust-vai against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-lima%2Frust-vai" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/m-lima/rust-vai on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/m-lima/rust-vai
[INFO] finished tweaking git repo https://github.com/m-lima/rust-vai
[INFO] tweaked toml for git repo https://github.com/m-lima/rust-vai written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/m-lima/rust-vai 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddfff2bf5d9859bd4fa51b7ae780be80e2d518fcd920400def783f7d1801aa2d
[INFO] running `Command { std: "docker" "start" "-a" "ddfff2bf5d9859bd4fa51b7ae780be80e2d518fcd920400def783f7d1801aa2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddfff2bf5d9859bd4fa51b7ae780be80e2d518fcd920400def783f7d1801aa2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddfff2bf5d9859bd4fa51b7ae780be80e2d518fcd920400def783f7d1801aa2d", kill_on_drop: false }`
[INFO] [stdout] ddfff2bf5d9859bd4fa51b7ae780be80e2d518fcd920400def783f7d1801aa2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f588225f8f311c9b9053532f939a576cb513913872084be8071a54c469e3dd4f
[INFO] running `Command { std: "docker" "start" "-a" "f588225f8f311c9b9053532f939a576cb513913872084be8071a54c469e3dd4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking webbrowser v0.7.1
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking crossterm v0.18.2
[INFO] [stderr]     Checking rucline v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.22.3
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking ureq v2.4.0
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking vai-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking vai v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.51s
[INFO] running `Command { std: "docker" "inspect" "f588225f8f311c9b9053532f939a576cb513913872084be8071a54c469e3dd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f588225f8f311c9b9053532f939a576cb513913872084be8071a54c469e3dd4f", kill_on_drop: false }`
[INFO] [stdout] f588225f8f311c9b9053532f939a576cb513913872084be8071a54c469e3dd4f