[INFO] fetching crate icm42688 0.2.0...
[INFO] testing icm42688-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate icm42688 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate icm42688 0.2.0
[INFO] finished tweaking crates.io crate icm42688 0.2.0
[INFO] tweaked toml for crates.io crate icm42688 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate icm42688 0.2.0 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 icm42688 0.2.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded riscv-rt v0.11.0
[INFO] [stderr]   Downloaded esp-println v0.3.1
[INFO] [stderr]   Downloaded riscv v0.10.1
[INFO] [stderr]   Downloaded fugit v0.3.6
[INFO] [stderr]   Downloaded dcmimu v0.2.2
[INFO] [stderr]   Downloaded accelerometer v0.12.0
[INFO] [stderr]   Downloaded esp-backtrace v0.4.0
[INFO] [stderr]   Downloaded riscv-atomic-emulation-trap v0.3.1
[INFO] [stderr]   Downloaded shared-bus v0.2.5
[INFO] [stderr]   Downloaded esp-hal-common v0.5.0
[INFO] [stderr]   Downloaded micromath v1.1.1
[INFO] [stderr]   Downloaded esp32c3 v0.9.1
[INFO] [stderr]   Downloaded esp-hal-procmacros v0.2.0
[INFO] [stderr]   Downloaded esp32c3-hal v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3e7cf210a3db5c2ca49f2eac430e5e1a90f278fc203cdbab8a7699ef27684f3d
[INFO] running `Command { std: "docker" "start" "-a" "3e7cf210a3db5c2ca49f2eac430e5e1a90f278fc203cdbab8a7699ef27684f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e7cf210a3db5c2ca49f2eac430e5e1a90f278fc203cdbab8a7699ef27684f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7cf210a3db5c2ca49f2eac430e5e1a90f278fc203cdbab8a7699ef27684f3d", kill_on_drop: false }`
[INFO] [stdout] 3e7cf210a3db5c2ca49f2eac430e5e1a90f278fc203cdbab8a7699ef27684f3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 019811a291e8badf2b8ec1b54f9851da961dde857ee65a56b3b6dcea618f0e30
[INFO] running `Command { std: "docker" "start" "-a" "019811a291e8badf2b8ec1b54f9851da961dde857ee65a56b3b6dcea618f0e30", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling riscv v0.10.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling critical-section v1.1.1
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling r0 v1.0.0
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling esp32c3 v0.9.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling esp-hal-common v0.5.0
[INFO] [stderr]    Compiling esp-println v0.3.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stderr]    Compiling embedded-dma v0.2.0
[INFO] [stderr]    Compiling esp-backtrace v0.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling esp32c3-hal v0.5.0
[INFO] [stderr]    Compiling fugit v0.3.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] [stdout] error[E0583]: file not found for module `arch`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/esp-backtrace-0.4.0/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub mod arch;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `arch`, create file "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/esp-backtrace-0.4.0/src/arch.rs" or "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/esp-backtrace-0.4.0/src/arch/mod.rs"
[INFO] [stdout]   = note: if there is a `mod arch` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr] error: could not compile `esp-backtrace` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] running `Command { std: "docker" "inspect" "019811a291e8badf2b8ec1b54f9851da961dde857ee65a56b3b6dcea618f0e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "019811a291e8badf2b8ec1b54f9851da961dde857ee65a56b3b6dcea618f0e30", kill_on_drop: false }`
[INFO] [stdout] 019811a291e8badf2b8ec1b54f9851da961dde857ee65a56b3b6dcea618f0e30