[INFO] cloning repository https://github.com/l3ve/rust4node
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/l3ve/rust4node" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl3ve%2Frust4node", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl3ve%2Frust4node'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44277b11f516cea4231c17f237d98a74b5c12f75
[INFO] checking l3ve/rust4node against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl3ve%2Frust4node" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/l3ve/rust4node 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/l3ve/rust4node
[INFO] finished tweaking git repo https://github.com/l3ve/rust4node
[INFO] tweaked toml for git repo https://github.com/l3ve/rust4node written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/l3ve/rust4node 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 napi-derive-backend v1.0.26
[INFO] [stderr]   Downloaded napi-sys v2.1.0
[INFO] [stderr]   Downloaded mimalloc v0.1.28
[INFO] [stderr]   Downloaded convert_case v0.5.0
[INFO] [stderr]   Downloaded napi-derive v2.2.0
[INFO] [stderr]   Downloaded napi v2.2.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.33.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.33.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.33.0
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.24
[INFO] [stderr]   Downloaded windows_i686_msvc v0.33.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.33.0
[INFO] [stderr]   Downloaded napi-build v1.2.1
[INFO] [stderr]   Downloaded windows v0.33.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 786522b1dec08539b345a41c7754e91f47769c4717f4e1ca3bdcca94ddc5f4ef
[INFO] running `Command { std: "docker" "start" "-a" "786522b1dec08539b345a41c7754e91f47769c4717f4e1ca3bdcca94ddc5f4ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "786522b1dec08539b345a41c7754e91f47769c4717f4e1ca3bdcca94ddc5f4ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786522b1dec08539b345a41c7754e91f47769c4717f4e1ca3bdcca94ddc5f4ef", kill_on_drop: false }`
[INFO] [stdout] 786522b1dec08539b345a41c7754e91f47769c4717f4e1ca3bdcca94ddc5f4ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 21aea975c4abe6921157ccf852ed1042e2ab7730842296373f5cd170f87de123
[INFO] running `Command { std: "docker" "start" "-a" "21aea975c4abe6921157ccf852ed1042e2ab7730842296373f5cd170f87de123", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.24
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling napi-build v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]     Checking napi-sys v2.1.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling rust4node v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking mimalloc v0.1.28
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling napi-derive-backend v1.0.26
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling napi-derive v2.2.0
[INFO] [stderr]     Checking napi v2.2.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.67s
[INFO] running `Command { std: "docker" "inspect" "21aea975c4abe6921157ccf852ed1042e2ab7730842296373f5cd170f87de123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21aea975c4abe6921157ccf852ed1042e2ab7730842296373f5cd170f87de123", kill_on_drop: false }`
[INFO] [stdout] 21aea975c4abe6921157ccf852ed1042e2ab7730842296373f5cd170f87de123
[INFO] checking l3ve/rust4node against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl3ve%2Frust4node" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/l3ve/rust4node 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/l3ve/rust4node
[INFO] finished tweaking git repo https://github.com/l3ve/rust4node
[INFO] tweaked toml for git repo https://github.com/l3ve/rust4node written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/l3ve/rust4node 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 98bc2243fd6df85c69b6486df42de6ce9e1d03edd58f470b93a68c1b7c376c2b
[INFO] running `Command { std: "docker" "start" "-a" "98bc2243fd6df85c69b6486df42de6ce9e1d03edd58f470b93a68c1b7c376c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98bc2243fd6df85c69b6486df42de6ce9e1d03edd58f470b93a68c1b7c376c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98bc2243fd6df85c69b6486df42de6ce9e1d03edd58f470b93a68c1b7c376c2b", kill_on_drop: false }`
[INFO] [stdout] 98bc2243fd6df85c69b6486df42de6ce9e1d03edd58f470b93a68c1b7c376c2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 42769e658f1fb7797768ee125dad06309d79c4e3432d6acdaa29813a3a507155
[INFO] running `Command { std: "docker" "start" "-a" "42769e658f1fb7797768ee125dad06309d79c4e3432d6acdaa29813a3a507155", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.24
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling napi-build v1.2.1
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking napi-sys v2.1.0
[INFO] [stderr]    Compiling rust4node v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking mimalloc v0.1.28
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling napi-derive-backend v1.0.26
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling napi-derive v2.2.0
[INFO] [stderr]     Checking napi v2.2.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.00s
[INFO] running `Command { std: "docker" "inspect" "42769e658f1fb7797768ee125dad06309d79c4e3432d6acdaa29813a3a507155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42769e658f1fb7797768ee125dad06309d79c4e3432d6acdaa29813a3a507155", kill_on_drop: false }`
[INFO] [stdout] 42769e658f1fb7797768ee125dad06309d79c4e3432d6acdaa29813a3a507155