[INFO] fetching crate region 3.0.2...
[INFO] checking region-3.0.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate region 3.0.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate region 3.0.2
[INFO] finished tweaking crates.io crate region 3.0.2
[INFO] tweaked toml for crates.io crate region 3.0.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate region 3.0.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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 17 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.9.3)
[INFO] [stderr]       Adding mach2 v0.4.3 (available: v0.5.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.60.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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 mmap-fixed v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7590089430fc7d404afeda78dc8c9aba9348266156620b307e4b069a076a39b8
[INFO] running `Command { std: "docker" "start" "-a" "7590089430fc7d404afeda78dc8c9aba9348266156620b307e4b069a076a39b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7590089430fc7d404afeda78dc8c9aba9348266156620b307e4b069a076a39b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7590089430fc7d404afeda78dc8c9aba9348266156620b307e4b069a076a39b8", kill_on_drop: false }`
[INFO] [stdout] 7590089430fc7d404afeda78dc8c9aba9348266156620b307e4b069a076a39b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bacead8a5e755c4f0a2a9bb9fff76478e568539d294f5d3925fb6ae682cfab4b
[INFO] running `Command { std: "docker" "start" "-a" "bacead8a5e755c4f0a2a9bb9fff76478e568539d294f5d3925fb6ae682cfab4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking mmap-fixed v0.1.6
[INFO] [stderr]     Checking region v3.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `region` (lib test) due to 1 previous error
[INFO] [stdout] error: casting references to a bigger memory layout than the backing allocation is undefined behavior, even if the reference is unused
[INFO] [stdout]    --> src/protect.rs:182:7
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let address = &mut protect_can_alter_text_segments as *mut _ as *mut u8;
[INFO] [stdout]     |                   ---------------------------------------------------------
[INFO] [stdout]     |                   |    |
[INFO] [stdout]     |                   |    backing allocation comes from here
[INFO] [stdout]     |                   casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 182 |       *address = 0x90;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: casting from `fn() {protect::tests::protect_can_alter_text_segments}` (0 bytes) to `u8` (1 bytes)
[INFO] [stdout]     = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bacead8a5e755c4f0a2a9bb9fff76478e568539d294f5d3925fb6ae682cfab4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bacead8a5e755c4f0a2a9bb9fff76478e568539d294f5d3925fb6ae682cfab4b", kill_on_drop: false }`
[INFO] [stdout] bacead8a5e755c4f0a2a9bb9fff76478e568539d294f5d3925fb6ae682cfab4b