[INFO] cloning repository https://github.com/platawiec/microbit-tilt-racer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/platawiec/microbit-tilt-racer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplatawiec%2Fmicrobit-tilt-racer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplatawiec%2Fmicrobit-tilt-racer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2b7b2d4cbca3b57f52ea09bdedab930a149e00fa [INFO] checking platawiec/microbit-tilt-racer against try#6db1a6a7ebb2ad243051f3ff949f987dd70cde2b+rustflags=-Dreturn-local-variable-ptr for pr-134218 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplatawiec%2Fmicrobit-tilt-racer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/platawiec/microbit-tilt-racer on toolchain 6db1a6a7ebb2ad243051f3ff949f987dd70cde2b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config [INFO] started tweaking git repo https://github.com/platawiec/microbit-tilt-racer [INFO] finished tweaking git repo https://github.com/platawiec/microbit-tilt-racer [INFO] tweaked toml for git repo https://github.com/platawiec/microbit-tilt-racer written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/platawiec/microbit-tilt-racer 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" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cortex-m-rtic-macros v1.1.5 [INFO] [stderr] Downloaded defmt-macros v0.3.3 [INFO] [stderr] Downloaded lsm303agr v0.2.2 [INFO] [stderr] Downloaded rtic-syntax v1.0.2 [INFO] [stderr] Downloaded cortex-m-rtic v1.1.3 [INFO] [stderr] Downloaded fixed v1.19.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cae05ed994fa561e4fe4e245c80aa6b3dc4dcdf88e0a2602bfe9c40ee635a0c9 [INFO] running `Command { std: "docker" "start" "-a" "cae05ed994fa561e4fe4e245c80aa6b3dc4dcdf88e0a2602bfe9c40ee635a0c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cae05ed994fa561e4fe4e245c80aa6b3dc4dcdf88e0a2602bfe9c40ee635a0c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cae05ed994fa561e4fe4e245c80aa6b3dc4dcdf88e0a2602bfe9c40ee635a0c9", kill_on_drop: false }` [INFO] [stdout] cae05ed994fa561e4fe4e245c80aa6b3dc4dcdf88e0a2602bfe9c40ee635a0c9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dreturn-local-variable-ptr" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+6db1a6a7ebb2ad243051f3ff949f987dd70cde2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 321c56fb4d33fad56861f4ce9c5347c0d8b0a5e9bb7be1505a39dc4f3ca47574 [INFO] running `Command { std: "docker" "start" "-a" "321c56fb4d33fad56861f4ce9c5347c0d8b0a5e9bb7be1505a39dc4f3ca47574", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.47 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.5 [INFO] [stderr] Compiling syn v1.0.102 [INFO] [stderr] Compiling cortex-m v0.7.6 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Checking nb v1.0.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking vcell v0.1.3 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Checking embedded-hal v0.2.7 [INFO] [stderr] Checking critical-section v1.1.1 [INFO] [stderr] Checking volatile-register v0.2.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling cortex-m-rt v0.7.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking bitfield v0.13.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling critical-section v0.2.7 [INFO] [stderr] Compiling az v1.2.1 [INFO] [stderr] Compiling semver v1.0.14 [INFO] [stderr] Checking bare-metal v1.0.0 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling fixed v1.19.0 [INFO] [stderr] Compiling nrf52833-pac v0.10.1 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Checking half v2.1.0 [INFO] [stderr] Checking usb-device v0.2.9 [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "321c56fb4d33fad56861f4ce9c5347c0d8b0a5e9bb7be1505a39dc4f3ca47574", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "321c56fb4d33fad56861f4ce9c5347c0d8b0a5e9bb7be1505a39dc4f3ca47574", kill_on_drop: false }` [INFO] [stdout] 321c56fb4d33fad56861f4ce9c5347c0d8b0a5e9bb7be1505a39dc4f3ca47574