[INFO] fetching crate varies 0.1.1... [INFO] checking varies-0.1.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate varies 0.1.1 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate varies 0.1.1 [INFO] finished tweaking crates.io crate varies 0.1.1 [INFO] tweaked toml for crates.io crate varies 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate varies 0.1.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate varies 0.1.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 85e38ddd80306c46c169a85b456060a33b230d3c81e1ff3b2c3902b66ed7ce8c [INFO] running `Command { std: "docker" "start" "-a" "85e38ddd80306c46c169a85b456060a33b230d3c81e1ff3b2c3902b66ed7ce8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "85e38ddd80306c46c169a85b456060a33b230d3c81e1ff3b2c3902b66ed7ce8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "85e38ddd80306c46c169a85b456060a33b230d3c81e1ff3b2c3902b66ed7ce8c", kill_on_drop: false }` [INFO] [stdout] 85e38ddd80306c46c169a85b456060a33b230d3c81e1ff3b2c3902b66ed7ce8c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b26b2a9352e3015ad85adbbb74430b5d5057046a1c6b449467b479e703f37ab5 [INFO] running `Command { std: "docker" "start" "-a" "b26b2a9352e3015ad85adbbb74430b5d5057046a1c6b449467b479e703f37ab5", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling syn v1.0.77 [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Checking quote v1.0.9 [INFO] [stderr] Checking varies v0.1.1 (/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/lib.rs:77:26 [INFO] [stdout] | [INFO] [stdout] 77 | let attrs = unsafe { &mut *(attrs 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] [stderr] error: could not compile `varies` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/lib.rs:77:26 [INFO] [stdout] | [INFO] [stdout] 77 | let attrs = unsafe { &mut *(attrs 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] [stderr] error: could not compile `varies` (lib test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "b26b2a9352e3015ad85adbbb74430b5d5057046a1c6b449467b479e703f37ab5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b26b2a9352e3015ad85adbbb74430b5d5057046a1c6b449467b479e703f37ab5", kill_on_drop: false }` [INFO] [stdout] b26b2a9352e3015ad85adbbb74430b5d5057046a1c6b449467b479e703f37ab5