[INFO] fetching crate mocktopus 0.8.0...
[INFO] testing mocktopus-0.8.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate mocktopus 0.8.0 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate mocktopus 0.8.0
[INFO] finished tweaking crates.io crate mocktopus 0.8.0
[INFO] tweaked toml for crates.io crate mocktopus 0.8.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mocktopus 0.8.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.47.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85bfa0558c4ab9aa33125c7e6980014fa1543c2cd04c5b5fedf45006db0f059d
[INFO] running `Command { std: "docker" "start" "-a" "85bfa0558c4ab9aa33125c7e6980014fa1543c2cd04c5b5fedf45006db0f059d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85bfa0558c4ab9aa33125c7e6980014fa1543c2cd04c5b5fedf45006db0f059d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85bfa0558c4ab9aa33125c7e6980014fa1543c2cd04c5b5fedf45006db0f059d", kill_on_drop: false }`
[INFO] [stdout] 85bfa0558c4ab9aa33125c7e6980014fa1543c2cd04c5b5fedf45006db0f059d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4bbf2631ecabcd6c76a12c8ee5cab5f163dbd531c7ec664a45d34ea272832c1
[INFO] running `Command { std: "docker" "start" "-a" "e4bbf2631ecabcd6c76a12c8ee5cab5f163dbd531c7ec664a45d34ea272832c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling mocktopus_macros v0.7.11
[INFO] [stderr]    Compiling mocktopus v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]   --> src/mocking_utils.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     &mut *(t_ref as *const T as *mut T)
[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 `mocktopus` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e4bbf2631ecabcd6c76a12c8ee5cab5f163dbd531c7ec664a45d34ea272832c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4bbf2631ecabcd6c76a12c8ee5cab5f163dbd531c7ec664a45d34ea272832c1", kill_on_drop: false }`
[INFO] [stdout] e4bbf2631ecabcd6c76a12c8ee5cab5f163dbd531c7ec664a45d34ea272832c1