[INFO] fetching crate ritual_build 0.4.0...
[INFO] checking ritual_build-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate ritual_build 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ritual_build 0.4.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ritual_build 0.4.0
[INFO] finished tweaking crates.io crate ritual_build 0.4.0
[INFO] tweaked toml for crates.io crate ritual_build 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding pathdiff v0.1.0 (latest: v0.2.1)
[INFO] [stderr]       Adding semver v0.9.0 (latest: v1.0.22)
[INFO] [stderr]       Adding semver-parser v0.7.0 (latest: v0.10.2)
[INFO] [stderr]       Adding shell-words v0.1.0 (latest: v1.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding term v0.4.6 (latest: v0.7.0)
[INFO] [stderr]       Adding term-painter v0.2.4 (latest: v0.4.0)
[INFO] [stderr]       Adding toml v0.4.10 (latest: v0.8.12)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 575a14f78b3d2e9909ba80f17f42679cb7970c38cee1ed6da4b623f7ad15556c
[INFO] running `Command { std: "docker" "start" "-a" "575a14f78b3d2e9909ba80f17f42679cb7970c38cee1ed6da4b623f7ad15556c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "575a14f78b3d2e9909ba80f17f42679cb7970c38cee1ed6da4b623f7ad15556c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575a14f78b3d2e9909ba80f17f42679cb7970c38cee1ed6da4b623f7ad15556c", kill_on_drop: false }`
[INFO] [stdout] 575a14f78b3d2e9909ba80f17f42679cb7970c38cee1ed6da4b623f7ad15556c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cff273ee5b241f1e9715fbf0c0b94ab3785a90c40797eb900fb19eb728d2324
[INFO] running `Command { std: "docker" "start" "-a" "7cff273ee5b241f1e9715fbf0c0b94ab3785a90c40797eb900fb19eb728d2324", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking shell-words v0.1.0
[INFO] [stderr]     Checking dunce v1.0.4
[INFO] [stderr]     Checking pathdiff v0.1.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking term-painter v0.2.4
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking ritual_common v0.4.0
[INFO] [stderr]     Checking ritual_build v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.49s
[INFO] running `Command { std: "docker" "inspect" "7cff273ee5b241f1e9715fbf0c0b94ab3785a90c40797eb900fb19eb728d2324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cff273ee5b241f1e9715fbf0c0b94ab3785a90c40797eb900fb19eb728d2324", kill_on_drop: false }`
[INFO] [stdout] 7cff273ee5b241f1e9715fbf0c0b94ab3785a90c40797eb900fb19eb728d2324