[INFO] fetching crate const-linear 0.1.0... [INFO] checking const-linear-0.1.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015 [INFO] extracting crate const-linear 0.1.0 into /workspace/builds/worker-10/source [INFO] validating manifest of crates.io crate const-linear 0.1.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate const-linear 0.1.0 [INFO] finished tweaking crates.io crate const-linear 0.1.0 [INFO] tweaked toml for crates.io crate const-linear 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eeb3bc58dd26a5b2c5d3c17157dafaef086c726c60f33e17fae2671fe807c676 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "eeb3bc58dd26a5b2c5d3c17157dafaef086c726c60f33e17fae2671fe807c676", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eeb3bc58dd26a5b2c5d3c17157dafaef086c726c60f33e17fae2671fe807c676", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eeb3bc58dd26a5b2c5d3c17157dafaef086c726c60f33e17fae2671fe807c676", kill_on_drop: false }` [INFO] [stdout] eeb3bc58dd26a5b2c5d3c17157dafaef086c726c60f33e17fae2671fe807c676 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ca9130061a8be0ed27ef69e1bafea0828a573b14227bbc420e7b0c890bee6650 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ca9130061a8be0ed27ef69e1bafea0828a573b14227bbc420e7b0c890bee6650", kill_on_drop: false }` [INFO] [stderr] Checking const-linear v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary braces around const expression [INFO] [stdout] --> src/matrix/mod.rs:1272:27 [INFO] [stdout] | [INFO] [stdout] 1272 | impl Vector { [INFO] [stdout] | ^^^^^ help: remove these braces [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around const expression [INFO] [stdout] --> src/matrix/mod.rs:1272:27 [INFO] [stdout] | [INFO] [stdout] 1272 | impl Vector { [INFO] [stdout] | ^^^^^ help: remove these braces [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: not automatically applying `DerefMut` on `ManuallyDrop` union field [INFO] [stdout] --> src/utils.rs:172:26 [INFO] [stdout] | [INFO] [stdout] 172 | &mut self.inner.maybe_uninit[self.length - 1], [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: writing to this reference calls the destructor for the old value [INFO] [stdout] = help: add an explicit `*` if that is desired, or call `ptr::write` to not run the destructor [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `const-linear` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: not automatically applying `DerefMut` on `ManuallyDrop` union field [INFO] [stdout] --> src/utils.rs:172:26 [INFO] [stdout] | [INFO] [stdout] 172 | &mut self.inner.maybe_uninit[self.length - 1], [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: writing to this reference calls the destructor for the old value [INFO] [stdout] = help: add an explicit `*` if that is desired, or call `ptr::write` to not run the destructor [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "ca9130061a8be0ed27ef69e1bafea0828a573b14227bbc420e7b0c890bee6650", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca9130061a8be0ed27ef69e1bafea0828a573b14227bbc420e7b0c890bee6650", kill_on_drop: false }` [INFO] [stdout] ca9130061a8be0ed27ef69e1bafea0828a573b14227bbc420e7b0c890bee6650