[INFO] fetching crate polonius-the-crab 0.4.1...
[INFO] checking polonius-the-crab-0.4.1 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate polonius-the-crab 0.4.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate polonius-the-crab 0.4.1 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate polonius-the-crab 0.4.1
[INFO] finished tweaking crates.io crate polonius-the-crab 0.4.1
[INFO] tweaked toml for crates.io crate polonius-the-crab 0.4.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f64819d8513d434071eabd12399947af437b32ea27243db040c02232e0f61b07
[INFO] running `Command { std: "docker" "start" "-a" "f64819d8513d434071eabd12399947af437b32ea27243db040c02232e0f61b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f64819d8513d434071eabd12399947af437b32ea27243db040c02232e0f61b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f64819d8513d434071eabd12399947af437b32ea27243db040c02232e0f61b07", kill_on_drop: false }`
[INFO] [stdout] f64819d8513d434071eabd12399947af437b32ea27243db040c02232e0f61b07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b95e1ef81cd04a48dc04318b7fd7987673854d5429a255f8c76d3bc31fa245a2
[INFO] running `Command { std: "docker" "start" "-a" "b95e1ef81cd04a48dc04318b7fd7987673854d5429a255f8c76d3bc31fa245a2", kill_on_drop: false }`
[INFO] [stderr]     Checking never-say-never v6.6.666
[INFO] [stderr]     Checking higher-kinded-types v0.1.1
[INFO] [stderr]     Checking polonius-the-crab v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/macros.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |             | Self::Break(unreachable) => match unreachable {},
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `cannot_use__polonius_break_dependentǃ__without_a_break_type_annotation_on__polonius_loopǃ` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/macros.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |             | Self::Break(unreachable) => match unreachable {},
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `cannot_use__polonius_break_dependentǃ__without_a_break_type_annotation_on__polonius_loopǃ` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "b95e1ef81cd04a48dc04318b7fd7987673854d5429a255f8c76d3bc31fa245a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95e1ef81cd04a48dc04318b7fd7987673854d5429a255f8c76d3bc31fa245a2", kill_on_drop: false }`
[INFO] [stdout] b95e1ef81cd04a48dc04318b7fd7987673854d5429a255f8c76d3bc31fa245a2