[INFO] cloning repository https://github.com/agoldhammer/dnser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/agoldhammer/dnser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagoldhammer%2Fdnser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagoldhammer%2Fdnser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 887224010ebabf565a762993ee9b3c2c6b548aae
[INFO] checking agoldhammer/dnser against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagoldhammer%2Fdnser" "/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/agoldhammer/dnser 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/agoldhammer/dnser
[INFO] finished tweaking git repo https://github.com/agoldhammer/dnser
[INFO] tweaked toml for git repo https://github.com/agoldhammer/dnser written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/agoldhammer/dnser 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] 832aad1352ac289a6c6ed3e117d9be48292b5f856f52ed7d2452c8a5e38b2be5
[INFO] running `Command { std: "docker" "start" "-a" "832aad1352ac289a6c6ed3e117d9be48292b5f856f52ed7d2452c8a5e38b2be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "832aad1352ac289a6c6ed3e117d9be48292b5f856f52ed7d2452c8a5e38b2be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "832aad1352ac289a6c6ed3e117d9be48292b5f856f52ed7d2452c8a5e38b2be5", kill_on_drop: false }`
[INFO] [stdout] 832aad1352ac289a6c6ed3e117d9be48292b5f856f52ed7d2452c8a5e38b2be5
[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] 37ca18ec3bbe2f7f600886013a43e86059f8b6da7d42701ae8571aef5740bbd2
[INFO] running `Command { std: "docker" "start" "-a" "37ca18ec3bbe2f7f600886013a43e86059f8b6da7d42701ae8571aef5740bbd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling enum-as-inner v0.6.0
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking hickory-proto v0.24.0
[INFO] [stderr]     Checking hickory-resolver v0.24.0
[INFO] [stderr]     Checking dnser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.64s
[INFO] running `Command { std: "docker" "inspect" "37ca18ec3bbe2f7f600886013a43e86059f8b6da7d42701ae8571aef5740bbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ca18ec3bbe2f7f600886013a43e86059f8b6da7d42701ae8571aef5740bbd2", kill_on_drop: false }`
[INFO] [stdout] 37ca18ec3bbe2f7f600886013a43e86059f8b6da7d42701ae8571aef5740bbd2
[INFO] checking agoldhammer/dnser against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagoldhammer%2Fdnser" "/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/agoldhammer/dnser 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/agoldhammer/dnser
[INFO] finished tweaking git repo https://github.com/agoldhammer/dnser
[INFO] tweaked toml for git repo https://github.com/agoldhammer/dnser written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/agoldhammer/dnser 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-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3dadd6af33453492b96bac1b97c4c881c316a2f0dfcf2d6b25b362b4b96c1aee
[INFO] running `Command { std: "docker" "start" "-a" "3dadd6af33453492b96bac1b97c4c881c316a2f0dfcf2d6b25b362b4b96c1aee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dadd6af33453492b96bac1b97c4c881c316a2f0dfcf2d6b25b362b4b96c1aee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dadd6af33453492b96bac1b97c4c881c316a2f0dfcf2d6b25b362b4b96c1aee", kill_on_drop: false }`
[INFO] [stdout] 3dadd6af33453492b96bac1b97c4c881c316a2f0dfcf2d6b25b362b4b96c1aee
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9166693cdbec2f91fa2075907a288d97601069e11adfa49a14357e295e3e928
[INFO] running `Command { std: "docker" "start" "-a" "d9166693cdbec2f91fa2075907a288d97601069e11adfa49a14357e295e3e928", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling enum-as-inner v0.6.0
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking hickory-proto v0.24.0
[INFO] [stderr]     Checking hickory-resolver v0.24.0
[INFO] [stderr]     Checking dnser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.10s
[INFO] running `Command { std: "docker" "inspect" "d9166693cdbec2f91fa2075907a288d97601069e11adfa49a14357e295e3e928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9166693cdbec2f91fa2075907a288d97601069e11adfa49a14357e295e3e928", kill_on_drop: false }`
[INFO] [stdout] d9166693cdbec2f91fa2075907a288d97601069e11adfa49a14357e295e3e928