[INFO] fetching crate ice40 0.2.2...
[INFO] checking ice40-0.2.2 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate ice40 0.2.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ice40 0.2.2 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ice40 0.2.2
[INFO] finished tweaking crates.io crate ice40 0.2.2
[INFO] tweaked toml for crates.io crate ice40 0.2.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate ice40 0.2.2 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded linux-embedded-hal v0.3.2
[INFO] [stderr]   Downloaded sysfs_gpio v0.6.1
[INFO] [stderr]   Downloaded i2cdev v0.5.1
[INFO] [stderr]   Downloaded spidev v0.5.1
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0-alpha.1
[INFO] [stderr]   Downloaded ftdi-mpsse v0.1.1
[INFO] [stderr]   Downloaded ftdi-embedded-hal v0.13.0
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-alpha.9
[INFO] [stderr]   Downloaded libftd2xx v0.32.1
[INFO] [stderr]   Downloaded gpio-cdev v0.5.1
[INFO] [stderr]   Downloaded libftd2xx-ffi v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57f3f83defe5a23ce3d590adf0fb67df70ed1a04958f7d0624cbfce5ab776c73
[INFO] running `Command { std: "docker" "start" "-a" "57f3f83defe5a23ce3d590adf0fb67df70ed1a04958f7d0624cbfce5ab776c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57f3f83defe5a23ce3d590adf0fb67df70ed1a04958f7d0624cbfce5ab776c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f3f83defe5a23ce3d590adf0fb67df70ed1a04958f7d0624cbfce5ab776c73", kill_on_drop: false }`
[INFO] [stdout] 57f3f83defe5a23ce3d590adf0fb67df70ed1a04958f7d0624cbfce5ab776c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3123afe8b62186dd6d4b939e81e4af45566a7d19bf9c6e04d3bf427a9130143
[INFO] running `Command { std: "docker" "start" "-a" "f3123afe8b62186dd6d4b939e81e4af45566a7d19bf9c6e04d3bf427a9130143", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling libftd2xx-ffi v0.8.5
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking ftdi-mpsse v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking byteorder v1.4.3
[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]     Checking embedded-hal v1.0.0-alpha.9
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0-alpha.1
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking ice40 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f3123afe8b62186dd6d4b939e81e4af45566a7d19bf9c6e04d3bf427a9130143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3123afe8b62186dd6d4b939e81e4af45566a7d19bf9c6e04d3bf427a9130143", kill_on_drop: false }`
[INFO] [stdout] f3123afe8b62186dd6d4b939e81e4af45566a7d19bf9c6e04d3bf427a9130143
