[INFO] fetching crate chalk-rust-ir 0.10.0...
[INFO] checking chalk-rust-ir-0.10.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate chalk-rust-ir 0.10.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate chalk-rust-ir 0.10.0 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 chalk-rust-ir 0.10.0
[INFO] finished tweaking crates.io crate chalk-rust-ir 0.10.0
[INFO] tweaked toml for crates.io crate chalk-rust-ir 0.10.0 written to /workspace/builds/worker-4-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 13 packages
[INFO] [stderr]       Adding chalk-derive v0.10.0 (latest: v0.96.0)
[INFO] [stderr]       Adding chalk-engine v0.10.0 (latest: v0.96.0)
[INFO] [stderr]       Adding chalk-ir v0.10.0 (latest: v0.96.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chalk-ir v0.10.0
[INFO] [stderr]   Downloaded chalk-derive v0.10.0
[INFO] [stderr]   Downloaded chalk-macros v0.10.0
[INFO] [stderr]   Downloaded chalk-engine v0.10.0
[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] dc80aab455ab6c4649a006b6970d3983fc7aef9d4c1ba698d8f5e4a81970eae5
[INFO] running `Command { std: "docker" "start" "-a" "dc80aab455ab6c4649a006b6970d3983fc7aef9d4c1ba698d8f5e4a81970eae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc80aab455ab6c4649a006b6970d3983fc7aef9d4c1ba698d8f5e4a81970eae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc80aab455ab6c4649a006b6970d3983fc7aef9d4c1ba698d8f5e4a81970eae5", kill_on_drop: false }`
[INFO] [stdout] dc80aab455ab6c4649a006b6970d3983fc7aef9d4c1ba698d8f5e4a81970eae5
[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] d48f4167be07447a38fb562d57639a039e2e27c34f7059e16a12c87e8c9c4afc
[INFO] running `Command { std: "docker" "start" "-a" "d48f4167be07447a38fb562d57639a039e2e27c34f7059e16a12c87e8c9c4afc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking chalk-macros v0.10.0
[INFO] [stderr]     Checking chalk-engine v0.10.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling chalk-derive v0.10.0
[INFO] [stderr]     Checking chalk-ir v0.10.0
[INFO] [stderr]     Checking chalk-rust-ir v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.96s
[INFO] running `Command { std: "docker" "inspect" "d48f4167be07447a38fb562d57639a039e2e27c34f7059e16a12c87e8c9c4afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d48f4167be07447a38fb562d57639a039e2e27c34f7059e16a12c87e8c9c4afc", kill_on_drop: false }`
[INFO] [stdout] d48f4167be07447a38fb562d57639a039e2e27c34f7059e16a12c87e8c9c4afc
[INFO] checking chalk-rust-ir-0.10.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate chalk-rust-ir 0.10.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate chalk-rust-ir 0.10.0 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 chalk-rust-ir 0.10.0
[INFO] finished tweaking crates.io crate chalk-rust-ir 0.10.0
[INFO] tweaked toml for crates.io crate chalk-rust-ir 0.10.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 13 packages
[INFO] [stderr]       Adding chalk-derive v0.10.0 (latest: v0.96.0)
[INFO] [stderr]       Adding chalk-engine v0.10.0 (latest: v0.96.0)
[INFO] [stderr]       Adding chalk-ir v0.10.0 (latest: v0.96.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[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] [stderr]     Blocking waiting for file lock on package cache
[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] d746b838463a1113bb04b0f274429422dcc86dbd5a097d692188208e1d0d8612
[INFO] running `Command { std: "docker" "start" "-a" "d746b838463a1113bb04b0f274429422dcc86dbd5a097d692188208e1d0d8612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d746b838463a1113bb04b0f274429422dcc86dbd5a097d692188208e1d0d8612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d746b838463a1113bb04b0f274429422dcc86dbd5a097d692188208e1d0d8612", kill_on_drop: false }`
[INFO] [stdout] d746b838463a1113bb04b0f274429422dcc86dbd5a097d692188208e1d0d8612
[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] 14d8aa2d9534b79eb1ec9d9123d7715b716490067ccda2e7f6710eedce534815
[INFO] running `Command { std: "docker" "start" "-a" "14d8aa2d9534b79eb1ec9d9123d7715b716490067ccda2e7f6710eedce534815", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking chalk-macros v0.10.0
[INFO] [stderr]     Checking chalk-engine v0.10.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling chalk-derive v0.10.0
[INFO] [stderr]     Checking chalk-ir v0.10.0
[INFO] [stderr]     Checking chalk-rust-ir v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.66s
[INFO] running `Command { std: "docker" "inspect" "14d8aa2d9534b79eb1ec9d9123d7715b716490067ccda2e7f6710eedce534815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14d8aa2d9534b79eb1ec9d9123d7715b716490067ccda2e7f6710eedce534815", kill_on_drop: false }`
[INFO] [stdout] 14d8aa2d9534b79eb1ec9d9123d7715b716490067ccda2e7f6710eedce534815