[INFO] fetching crate minceraft-derive 0.2.0...
[INFO] checking minceraft-derive-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate minceraft-derive 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate minceraft-derive 0.2.0 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 minceraft-derive 0.2.0
[INFO] finished tweaking crates.io crate minceraft-derive 0.2.0
[INFO] tweaked toml for crates.io crate minceraft-derive 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate minceraft-derive 0.2.0 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 hematite-nbt v0.5.2
[INFO] [stderr]   Downloaded uuid v1.1.2
[INFO] [stderr]   Downloaded cfb8 v0.7.1
[INFO] [stderr]   Downloaded minceraft v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cf78d307d6a92ca4a44121694773eaa0e264055d8e2675d1f2d9dbced95c5753
[INFO] running `Command { std: "docker" "start" "-a" "cf78d307d6a92ca4a44121694773eaa0e264055d8e2675d1f2d9dbced95c5753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf78d307d6a92ca4a44121694773eaa0e264055d8e2675d1f2d9dbced95c5753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf78d307d6a92ca4a44121694773eaa0e264055d8e2675d1f2d9dbced95c5753", kill_on_drop: false }`
[INFO] [stdout] cf78d307d6a92ca4a44121694773eaa0e264055d8e2675d1f2d9dbced95c5753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4a0450fd285bed3d2bab57eff2e1720291ec1deaad1b1bee3f50e24ca20353dd
[INFO] running `Command { std: "docker" "start" "-a" "4a0450fd285bed3d2bab57eff2e1720291ec1deaad1b1bee3f50e24ca20353dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking unicode-ident v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking cfb8 v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking hematite-nbt v0.5.2
[INFO] [stderr]     Checking minceraft v0.2.1
[INFO] [stderr]     Checking minceraft-derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.54s
[INFO] running `Command { std: "docker" "inspect" "4a0450fd285bed3d2bab57eff2e1720291ec1deaad1b1bee3f50e24ca20353dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a0450fd285bed3d2bab57eff2e1720291ec1deaad1b1bee3f50e24ca20353dd", kill_on_drop: false }`
[INFO] [stdout] 4a0450fd285bed3d2bab57eff2e1720291ec1deaad1b1bee3f50e24ca20353dd
[INFO] checking minceraft-derive-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate minceraft-derive 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate minceraft-derive 0.2.0 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 crates.io crate minceraft-derive 0.2.0
[INFO] finished tweaking crates.io crate minceraft-derive 0.2.0
[INFO] tweaked toml for crates.io crate minceraft-derive 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate minceraft-derive 0.2.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 15d2307383b36d06a71ede5c9fb35100235ef169cfcde011925f835ed1e08345
[INFO] running `Command { std: "docker" "start" "-a" "15d2307383b36d06a71ede5c9fb35100235ef169cfcde011925f835ed1e08345", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15d2307383b36d06a71ede5c9fb35100235ef169cfcde011925f835ed1e08345", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d2307383b36d06a71ede5c9fb35100235ef169cfcde011925f835ed1e08345", kill_on_drop: false }`
[INFO] [stdout] 15d2307383b36d06a71ede5c9fb35100235ef169cfcde011925f835ed1e08345
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f97d73e5b245f2e71f597f0ac5cfd47c737cd21fe52b68809c48a6a2fdad7738
[INFO] running `Command { std: "docker" "start" "-a" "f97d73e5b245f2e71f597f0ac5cfd47c737cd21fe52b68809c48a6a2fdad7738", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking unicode-ident v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking uuid v1.1.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling aes v0.7.5
[INFO] [stderr]    Compiling cfb8 v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking hematite-nbt v0.5.2
[INFO] [stderr]     Checking minceraft v0.2.1
[INFO] [stderr]     Checking minceraft-derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.62s
[INFO] running `Command { std: "docker" "inspect" "f97d73e5b245f2e71f597f0ac5cfd47c737cd21fe52b68809c48a6a2fdad7738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f97d73e5b245f2e71f597f0ac5cfd47c737cd21fe52b68809c48a6a2fdad7738", kill_on_drop: false }`
[INFO] [stdout] f97d73e5b245f2e71f597f0ac5cfd47c737cd21fe52b68809c48a6a2fdad7738