[INFO] fetching crate adafruit-nrf52840-express 0.2.0...
[INFO] checking adafruit-nrf52840-express-0.2.0 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate adafruit-nrf52840-express 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate adafruit-nrf52840-express 0.2.0 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate adafruit-nrf52840-express 0.2.0
[INFO] finished tweaking crates.io crate adafruit-nrf52840-express 0.2.0
[INFO] tweaked toml for crates.io crate adafruit-nrf52840-express 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 44 packages to latest compatible versions
[INFO] [stderr]       Adding cortex-m v0.6.7 (available: v0.7.7)
[INFO] [stderr]       Adding cortex-m-rt v0.6.15 (available: v0.7.5)
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] [stderr]       Adding nrf-usbd v0.1.0 (available: v0.1.1)
[INFO] [stderr]       Adding nrf52840-hal v0.14.1 (available: v0.18.0)
[INFO] [stderr]       Adding shared-bus v0.2.5 (available: v0.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.15
[INFO] [stderr]   Downloaded embedded-dma v0.1.2
[INFO] [stderr]   Downloaded nrf-hal-common v0.14.1
[INFO] [stderr]   Downloaded nrf52840-hal v0.14.1
[INFO] [stderr]   Downloaded shared-bus v0.2.5
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.6.15
[INFO] [stderr]   Downloaded r0 v0.2.2
[INFO] [stderr]   Downloaded nrf-usbd v0.1.0
[INFO] [stderr]   Downloaded nrf52840-pac v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e253bb8b2aeb5e2f9b3705e41805c42e5f89f8c92fa35e3fe4c719e8dad63c11
[INFO] running `Command { std: "docker" "start" "-a" "e253bb8b2aeb5e2f9b3705e41805c42e5f89f8c92fa35e3fe4c719e8dad63c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e253bb8b2aeb5e2f9b3705e41805c42e5f89f8c92fa35e3fe4c719e8dad63c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e253bb8b2aeb5e2f9b3705e41805c42e5f89f8c92fa35e3fe4c719e8dad63c11", kill_on_drop: false }`
[INFO] [stdout] e253bb8b2aeb5e2f9b3705e41805c42e5f89f8c92fa35e3fe4c719e8dad63c11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3e2aae94677cfb22175ef6700c24a7676f89e798092b8fa32ba060df0d5828e
[INFO] running `Command { std: "docker" "start" "-a" "c3e2aae94677cfb22175ef6700c24a7676f89e798092b8fa32ba060df0d5828e", kill_on_drop: false }`
[INFO] [stderr] error: output of --print=file-names missing when learning about target-specific information from rustc
[INFO] [stderr] command was: `/opt/rustwide/rustup-home/toolchains/ff1737bb00913444173658b4e0b274fd79aabf66/bin/rustc - --crate-name ___ --print=file-names --cap-lints=allow --target thumbv7em-none-eabihf --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=split-debuginfo --print=crate-name --print=cfg`
[INFO] [stderr] 
[INFO] [stderr] --- stdout
[INFO] [stderr] ___
[INFO] [stderr] lib___.rlib
[INFO] [stderr] lib___.a
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] [stderr] off
[INFO] [stderr] ___
[INFO] [stderr] debug_assertions
[INFO] [stderr] fmt_debug="full"
[INFO] [stderr] overflow_checks
[INFO] [stderr] panic="abort"
[INFO] [stderr] proc_macro
[INFO] [stderr] relocation_model="static"
[INFO] [stderr] target_abi="eabihf"
[INFO] [stderr] target_arch="arm"
[INFO] [stderr] target_endian="little"
[INFO] [stderr] target_env=""
[INFO] [stderr] target_feature="dsp"
[INFO] [stderr] target_feature="mclass"
[INFO] [stderr] target_feature="thumb-mode"
[INFO] [stderr] target_feature="thumb2"
[INFO] [stderr] target_feature="v5te"
[INFO] [stderr] target_feature="v6"
[INFO] [stderr] target_feature="v6k"
[INFO] [stderr] target_feature="v6t2"
[INFO] [stderr] target_feature="v7"
[INFO] [stderr] target_has_atomic
[INFO] [stderr] target_has_atomic="16"
[INFO] [stderr] target_has_atomic="32"
[INFO] [stderr] target_has_atomic="8"
[INFO] [stderr] target_has_atomic="ptr"
[INFO] [stderr] target_has_atomic_equal_alignment="16"
[INFO] [stderr] target_has_atomic_equal_alignment="32"
[INFO] [stderr] target_has_atomic_equal_alignment="8"
[INFO] [stderr] target_has_atomic_equal_alignment="ptr"
[INFO] [stderr] target_has_atomic_load_store
[INFO] [stderr] target_has_atomic_load_store="16"
[INFO] [stderr] target_has_atomic_load_store="32"
[INFO] [stderr] target_has_atomic_load_store="8"
[INFO] [stderr] target_has_atomic_load_store="ptr"
[INFO] [stderr] target_os="none"
[INFO] [stderr] target_pointer_width="32"
[INFO] [stderr] target_vendor="unknown"
[INFO] [stderr] ub_checks
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "c3e2aae94677cfb22175ef6700c24a7676f89e798092b8fa32ba060df0d5828e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e2aae94677cfb22175ef6700c24a7676f89e798092b8fa32ba060df0d5828e", kill_on_drop: false }`
[INFO] [stdout] c3e2aae94677cfb22175ef6700c24a7676f89e798092b8fa32ba060df0d5828e