[INFO] fetching crate silkworm 0.1.0-dev.0...
[INFO] checking silkworm-0.1.0-dev.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate silkworm 0.1.0-dev.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate silkworm 0.1.0-dev.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 silkworm 0.1.0-dev.0
[INFO] finished tweaking crates.io crate silkworm 0.1.0-dev.0
[INFO] tweaked toml for crates.io crate silkworm 0.1.0-dev.0 written to /workspace/builds/worker-7-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 28 packages
[INFO] [stderr]       Adding ahash v0.3.8 (latest: v0.8.11)
[INFO] [stderr]       Adding arraydeque v0.4.5 (latest: v0.5.1)
[INFO] [stderr]       Adding arrayvec v0.5.2 (latest: v0.7.4)
[INFO] [stderr]       Adding hashbrown v0.7.2 (latest: v0.14.3)
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashbrown v0.7.2
[INFO] [stderr]   Downloaded silkworm_sourcemap v0.1.0-dev.1
[INFO] [stderr]   Downloaded silkworm_err v0.1.0-dev.1
[INFO] [stderr]   Downloaded silkworm_syn v0.1.0-dev.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7b2c0c37216502a79d9a53bc12ef45b34d322cd91443a6ebc776125d1aeb865d
[INFO] running `Command { std: "docker" "start" "-a" "7b2c0c37216502a79d9a53bc12ef45b34d322cd91443a6ebc776125d1aeb865d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b2c0c37216502a79d9a53bc12ef45b34d322cd91443a6ebc776125d1aeb865d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b2c0c37216502a79d9a53bc12ef45b34d322cd91443a6ebc776125d1aeb865d", kill_on_drop: false }`
[INFO] [stdout] 7b2c0c37216502a79d9a53bc12ef45b34d322cd91443a6ebc776125d1aeb865d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a44270d5b08f9b1513be32843b2aa1807884b6cb1586ac8404e41f0cfe9fc964
[INFO] running `Command { std: "docker" "start" "-a" "a44270d5b08f9b1513be32843b2aa1807884b6cb1586ac8404e41f0cfe9fc964", kill_on_drop: false }`
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking silkworm_sourcemap v0.1.0-dev.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking silkworm_err v0.1.0-dev.1
[INFO] [stderr]     Checking silkworm_syn v0.1.0-dev.1
[INFO] [stderr]     Checking silkworm v0.1.0-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `Command { std: "docker" "inspect" "a44270d5b08f9b1513be32843b2aa1807884b6cb1586ac8404e41f0cfe9fc964", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a44270d5b08f9b1513be32843b2aa1807884b6cb1586ac8404e41f0cfe9fc964", kill_on_drop: false }`
[INFO] [stdout] a44270d5b08f9b1513be32843b2aa1807884b6cb1586ac8404e41f0cfe9fc964