[INFO] fetching crate mwatch-sdk 0.4.0... [INFO] checking mwatch-sdk-0.4.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] extracting crate mwatch-sdk 0.4.0 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate mwatch-sdk 0.4.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-3/source/.cargo/config [INFO] started tweaking crates.io crate mwatch-sdk 0.4.0 [INFO] finished tweaking crates.io crate mwatch-sdk 0.4.0 [INFO] tweaked toml for crates.io crate mwatch-sdk 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f0d2e0e9549944b0791936b8f8d61c7e4755ce3eb9521c1eb16f75930c55f6de [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" "f0d2e0e9549944b0791936b8f8d61c7e4755ce3eb9521c1eb16f75930c55f6de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f0d2e0e9549944b0791936b8f8d61c7e4755ce3eb9521c1eb16f75930c55f6de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0d2e0e9549944b0791936b8f8d61c7e4755ce3eb9521c1eb16f75930c55f6de", kill_on_drop: false }` [INFO] [stdout] f0d2e0e9549944b0791936b8f8d61c7e4755ce3eb9521c1eb16f75930c55f6de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b6dfa964033ec2e661771d9cc23c2c56d04868c0d6d106e32325d1d87f7c172c [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" "b6dfa964033ec2e661771d9cc23c2c56d04868c0d6d106e32325d1d87f7c172c", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Checking nb v1.0.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling cortex-m v0.7.1 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking vcell v0.1.3 [INFO] [stderr] Checking bitfield v0.13.2 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling cortex-m v0.6.7 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling cortex-m v0.5.11 [INFO] [stderr] Compiling cortex-m-rt v0.6.13 [INFO] [stderr] Compiling heapless v0.4.4 [INFO] [stderr] Checking aligned v0.2.0 [INFO] [stderr] Checking r0 v0.2.2 [INFO] [stderr] Compiling cortex-m-semihosting v0.3.7 [INFO] [stderr] Compiling stm32l4 v0.7.1 [INFO] [stderr] Compiling cortex-m-rtfm v0.4.3 [INFO] [stderr] Compiling mwatch_kernel v1.0.0 [INFO] [stderr] Compiling mwatch-sdk v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Checking volatile-register v0.2.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Checking hash32 v0.1.1 [INFO] [stderr] Compiling crc v1.8.1 [INFO] [stderr] Checking embedded-hal v0.2.4 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Checking max17048 v0.1.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking panic-itm v0.4.2 [INFO] [stderr] Checking panic-semihosting v0.5.6 [INFO] [stderr] Checking tinytga v0.1.0 [INFO] [stderr] Checking generic-array v0.13.2 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking generic-array v0.11.1 [INFO] [stderr] Checking as-slice v0.1.4 [INFO] [stderr] Checking aligned v0.3.4 [INFO] [stderr] Checking tinybmp v0.1.1 [INFO] [stderr] Checking embedded-graphics v0.4.9 [INFO] [stderr] Checking cortex-m-log v0.4.0 [INFO] [stderr] Checking hm11 v0.2.1 [INFO] [stderr] Checking ssd1351 v0.2.2 [INFO] [stderr] Compiling owned-singleton-macros v0.1.0 [INFO] [stderr] Compiling cortex-m-rtfm-macros v0.4.3 [INFO] [stderr] Compiling cortex-m-rt-macros v0.1.8 [INFO] [stderr] Checking owned-singleton v0.1.0 [INFO] [stdout] error[E0658]: use of unstable library feature 'maybe_uninit_extra' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-rtfm-0.4.3/src/export.rs:90:20 [INFO] [stdout] | [INFO] [stdout] 90 | self.inner.write(value) [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63567 for more information [INFO] [stdout] = help: add `#![feature(maybe_uninit_extra)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `cortex-m-rtfm` [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] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "b6dfa964033ec2e661771d9cc23c2c56d04868c0d6d106e32325d1d87f7c172c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b6dfa964033ec2e661771d9cc23c2c56d04868c0d6d106e32325d1d87f7c172c", kill_on_drop: false }` [INFO] [stdout] b6dfa964033ec2e661771d9cc23c2c56d04868c0d6d106e32325d1d87f7c172c