[INFO] fetching crate nydus-error 0.2.3...
[INFO] checking nydus-error-0.2.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate nydus-error 0.2.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate nydus-error 0.2.3 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 crates.io crate nydus-error 0.2.3
[INFO] finished tweaking crates.io crate nydus-error 0.2.3
[INFO] tweaked toml for crates.io crate nydus-error 0.2.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[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-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67dc51b55e11812881843440f296e52eda7f0a2f9c6db865a5616bb45a1af361
[INFO] running `Command { std: "docker" "start" "-a" "67dc51b55e11812881843440f296e52eda7f0a2f9c6db865a5616bb45a1af361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67dc51b55e11812881843440f296e52eda7f0a2f9c6db865a5616bb45a1af361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67dc51b55e11812881843440f296e52eda7f0a2f9c6db865a5616bb45a1af361", kill_on_drop: false }`
[INFO] [stdout] 67dc51b55e11812881843440f296e52eda7f0a2f9c6db865a5616bb45a1af361
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f90a3928c333f995a767e1c9ca92c8bb8f1fda9fb56da88f668fa51f33deb3f
[INFO] running `Command { std: "docker" "start" "-a" "4f90a3928c333f995a767e1c9ca92c8bb8f1fda9fb56da88f668fa51f33deb3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking nydus-error v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.47s
[INFO] running `Command { std: "docker" "inspect" "4f90a3928c333f995a767e1c9ca92c8bb8f1fda9fb56da88f668fa51f33deb3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f90a3928c333f995a767e1c9ca92c8bb8f1fda9fb56da88f668fa51f33deb3f", kill_on_drop: false }`
[INFO] [stdout] 4f90a3928c333f995a767e1c9ca92c8bb8f1fda9fb56da88f668fa51f33deb3f