[INFO] fetching crate ulib 0.3.3... [INFO] testing ulib-0.3.3 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate ulib 0.3.3 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate ulib 0.3.3 [INFO] finished tweaking crates.io crate ulib 0.3.3 [INFO] tweaked toml for crates.io crate ulib 0.3.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate ulib 0.3.3 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 65 packages to latest compatible versions [INFO] [stderr] Adding cc v1.0.106 (available: v1.2.35) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ucc v0.2.1 [INFO] [stderr] Downloaded ulib-derive v0.1.0 [INFO] [stderr] Downloaded clilog v0.2.3 [INFO] [stderr] Downloaded tree-sitter-cpp v0.20.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 43acba30204976592432f691eb9d5fda385b9dae419ee1487bf29e4131c93395 [INFO] running `Command { std: "docker" "start" "-a" "43acba30204976592432f691eb9d5fda385b9dae419ee1487bf29e4131c93395", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "43acba30204976592432f691eb9d5fda385b9dae419ee1487bf29e4131c93395", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43acba30204976592432f691eb9d5fda385b9dae419ee1487bf29e4131c93395", kill_on_drop: false }` [INFO] [stdout] 43acba30204976592432f691eb9d5fda385b9dae419ee1487bf29e4131c93395 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1b442096f00f497fffdf5ce4c1b79e641ed8c8a3fe65ffaef9e44659e6a806a [INFO] running `Command { std: "docker" "start" "-a" "f1b442096f00f497fffdf5ce4c1b79e641ed8c8a3fe65ffaef9e44659e6a806a", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.106 [INFO] [stderr] Compiling regex-syntax v0.8.6 [INFO] [stderr] Compiling prettyplease v0.2.37 [INFO] [stderr] Compiling fs_extra v1.3.0 [INFO] [stderr] Compiling num_threads v0.1.7 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling time-macros v0.2.23 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling ulib-derive v0.1.0 [INFO] [stderr] Compiling tree-sitter v0.20.10 [INFO] [stderr] Compiling tree-sitter-cpp v0.20.5 [INFO] [stderr] Compiling time v0.3.42 [INFO] [stderr] Compiling simplelog v0.12.2 [INFO] [stderr] Compiling clilog v0.2.3 [INFO] [stderr] Compiling regex-automata v0.4.10 [INFO] [stderr] Compiling regex v1.11.2 [INFO] [stderr] Compiling ucc v0.2.1 [INFO] [stderr] Compiling ulib v0.3.3 (/opt/rustwide/workdir) [INFO] [stderr] error: could not compile `ulib` (lib) due to 1 previous error [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/uvec.rs:279:13 [INFO] [stdout] | [INFO] [stdout] 279 | (&mut *(self as *const UVec as *mut UVec)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get` [INFO] [stdout] = note: `#[deny(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f1b442096f00f497fffdf5ce4c1b79e641ed8c8a3fe65ffaef9e44659e6a806a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1b442096f00f497fffdf5ce4c1b79e641ed8c8a3fe65ffaef9e44659e6a806a", kill_on_drop: false }` [INFO] [stdout] f1b442096f00f497fffdf5ce4c1b79e641ed8c8a3fe65ffaef9e44659e6a806a