[INFO] fetching crate interloc 0.1.3...
[INFO] testing interloc-0.1.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate interloc 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate interloc 0.1.3
[INFO] finished tweaking crates.io crate interloc 0.1.3
[INFO] tweaked toml for crates.io crate interloc 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate interloc 0.1.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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 31 packages to latest compatible versions
[INFO] [stderr]       Adding lock_api v0.2.0 (available: v0.4.14)
[INFO] [stderr]       Adding parking_lot v0.8.0 (available: v0.12.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6ad4e9b76df57c0fca809ed6c6c3f5b78516fea058042700c6fef39cdfc6b87
[INFO] running `Command { std: "docker" "start" "-a" "e6ad4e9b76df57c0fca809ed6c6c3f5b78516fea058042700c6fef39cdfc6b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6ad4e9b76df57c0fca809ed6c6c3f5b78516fea058042700c6fef39cdfc6b87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6ad4e9b76df57c0fca809ed6c6c3f5b78516fea058042700c6fef39cdfc6b87", kill_on_drop: false }`
[INFO] [stdout] e6ad4e9b76df57c0fca809ed6c6c3f5b78516fea058042700c6fef39cdfc6b87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 178d3de0cfe71b0dcfee9c29cf2cee6fe8cf3593719be0af5a159f71f0a4f298
[INFO] running `Command { std: "docker" "start" "-a" "178d3de0cfe71b0dcfee9c29cf2cee6fe8cf3593719be0af5a159f71f0a4f298", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling interloc v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]    --> src/monitor.rs:104:18
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let info = &self.info as *const AllocInfo as *mut AllocInfo;
[INFO] [stdout]     |                    ------------------------------------------------ casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 104 |         unsafe { *info = new_info };
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interloc` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "178d3de0cfe71b0dcfee9c29cf2cee6fe8cf3593719be0af5a159f71f0a4f298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178d3de0cfe71b0dcfee9c29cf2cee6fe8cf3593719be0af5a159f71f0a4f298", kill_on_drop: false }`
[INFO] [stdout] 178d3de0cfe71b0dcfee9c29cf2cee6fe8cf3593719be0af5a159f71f0a4f298