[INFO] fetching crate fasteval 0.2.4... [INFO] testing fasteval-0.2.4 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate fasteval 0.2.4 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate fasteval 0.2.4 [INFO] finished tweaking crates.io crate fasteval 0.2.4 [INFO] tweaked toml for crates.io crate fasteval 0.2.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate fasteval 0.2.4 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate fasteval 0.2.4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0c468bb2f641f3a8e8ef324e228e53ac1efdb32dbb4075c9d07bf8449bfb7b3b [INFO] running `Command { std: "docker" "start" "-a" "0c468bb2f641f3a8e8ef324e228e53ac1efdb32dbb4075c9d07bf8449bfb7b3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c468bb2f641f3a8e8ef324e228e53ac1efdb32dbb4075c9d07bf8449bfb7b3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c468bb2f641f3a8e8ef324e228e53ac1efdb32dbb4075c9d07bf8449bfb7b3b", kill_on_drop: false }` [INFO] [stdout] 0c468bb2f641f3a8e8ef324e228e53ac1efdb32dbb4075c9d07bf8449bfb7b3b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 42251388826a0431e620439714fca9b5d8e968612d64d7216107106cd4b2c73d [INFO] running `Command { std: "docker" "start" "-a" "42251388826a0431e620439714fca9b5d8e968612d64d7216107106cd4b2c73d", kill_on_drop: false }` [INFO] [stderr] Compiling fasteval v0.2.4 (/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/evaler.rs:421:67 [INFO] [stdout] | [INFO] [stdout] 421 | EVar(name) => eval_var!(ns, name, Vec::new(), unsafe{ &mut *(&slab.ps.char_buf as *const _ as *mut _) }), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: `#[deny(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [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/evaler.rs:427:51 [INFO] [stdout] | [INFO] [stdout] 427 | eval_var!(ns, name, args, unsafe{ &mut *(&slab.ps.char_buf as *const _ as *mut _) }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] [INFO] [stdout] [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/evaler.rs:587:67 [INFO] [stdout] | [INFO] [stdout] 587 | IVar(name) => eval_var!(ns, name, Vec::new(), unsafe{ &mut *(&slab.ps.char_buf as *const _ as *mut _) }), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] [INFO] [stdout] [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/evaler.rs:593:51 [INFO] [stdout] | [INFO] [stdout] 593 | eval_var!(ns, name, args, unsafe{ &mut *(&slab.ps.char_buf as *const _ as *mut _) }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fasteval` (lib) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "42251388826a0431e620439714fca9b5d8e968612d64d7216107106cd4b2c73d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42251388826a0431e620439714fca9b5d8e968612d64d7216107106cd4b2c73d", kill_on_drop: false }` [INFO] [stdout] 42251388826a0431e620439714fca9b5d8e968612d64d7216107106cd4b2c73d