[INFO] fetching crate mwatch-kernel-stm32l4 2.0.0...
[INFO] checking mwatch-kernel-stm32l4-2.0.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate mwatch-kernel-stm32l4 2.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate mwatch-kernel-stm32l4 2.0.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate mwatch-kernel-stm32l4 2.0.0
[INFO] finished tweaking crates.io crate mwatch-kernel-stm32l4 2.0.0
[INFO] tweaked toml for crates.io crate mwatch-kernel-stm32l4 2.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate mwatch-kernel-stm32l4 2.0.0 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded max17048 v0.1.0
[INFO] [stderr]   Downloaded build_const v0.2.2
[INFO] [stderr]   Downloaded aligned v0.2.0
[INFO] [stderr]   Downloaded panic-itm v0.4.2
[INFO] [stderr]   Downloaded crc v1.8.1
[INFO] [stderr]   Downloaded generic-array v0.11.2
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] [stderr]   Downloaded cortex-m v0.5.11
[INFO] [stderr]   Downloaded heapless v0.4.4
[INFO] [stderr]   Downloaded cortex-m-rtic v0.5.9
[INFO] [stderr]   Downloaded embedded-graphics v0.6.2
[INFO] [stderr]   Downloaded cortex-m v0.7.6
[INFO] [stderr]   Downloaded mwatch_kernel v2.0.0
[INFO] [stderr]   Downloaded ssd1351 v0.3.0
[INFO] [stderr]   Downloaded stm32l4xx-hal v0.5.0
[INFO] [stderr]   Downloaded embedded-graphics-core v0.3.3
[INFO] [stderr]   Downloaded hm11 v0.2.1
[INFO] [stderr]   Downloaded simple-hex v0.1.0
[INFO] [stderr]   Downloaded ssd1351 v0.4.2
[INFO] [stderr]   Downloaded panic-rtt-target v0.1.2
[INFO] [stderr]   Downloaded stm32l4 v0.8.0
[INFO] [stderr]   Downloaded cortex-m-log v0.4.0
[INFO] [stderr]   Downloaded embedded-graphics v0.7.1
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5498969b934d15d60ea4e53fc30caeb2d26292f1c098153def9cb7bb245002a0
[INFO] running `Command { std: "docker" "start" "-a" "5498969b934d15d60ea4e53fc30caeb2d26292f1c098153def9cb7bb245002a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5498969b934d15d60ea4e53fc30caeb2d26292f1c098153def9cb7bb245002a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5498969b934d15d60ea4e53fc30caeb2d26292f1c098153def9cb7bb245002a0", kill_on_drop: false }`
[INFO] [stdout] 5498969b934d15d60ea4e53fc30caeb2d26292f1c098153def9cb7bb245002a0
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbcc58ae20d1ed7719ffdf1f3d00066384c9ca7e33df47a30cd0850835bc6eb8
[INFO] running `Command { std: "docker" "start" "-a" "cbcc58ae20d1ed7719ffdf1f3d00066384c9ca7e33df47a30cd0850835bc6eb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling heapless v0.4.4
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking embedded-graphics-core v0.3.3
[INFO] [stderr]    Compiling heapless v0.6.1
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling stm32l4 v0.8.0
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]    Compiling cortex-m-rtic v0.5.9
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking micromath v1.1.1
[INFO] [stderr]     Checking time-core v0.1.0
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking time v0.3.17
[INFO] [stderr]     Checking rtic-core v0.3.1
[INFO] [stderr]     Checking simple-hex v0.1.0
[INFO] [stderr]    Compiling mwatch-kernel-stm32l4 v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking max17048 v0.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 rustc_version v0.4.0
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]     Checking panic-rtt-target v0.1.2
[INFO] [stderr]     Checking embedded-graphics v0.7.1
[INFO] [stderr]     Checking ssd1351 v0.4.2
[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" "cbcc58ae20d1ed7719ffdf1f3d00066384c9ca7e33df47a30cd0850835bc6eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbcc58ae20d1ed7719ffdf1f3d00066384c9ca7e33df47a30cd0850835bc6eb8", kill_on_drop: false }`
[INFO] [stdout] cbcc58ae20d1ed7719ffdf1f3d00066384c9ca7e33df47a30cd0850835bc6eb8
[INFO] checking mwatch-kernel-stm32l4-2.0.0 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate mwatch-kernel-stm32l4 2.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate mwatch-kernel-stm32l4 2.0.0 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate mwatch-kernel-stm32l4 2.0.0
[INFO] finished tweaking crates.io crate mwatch-kernel-stm32l4 2.0.0
[INFO] tweaked toml for crates.io crate mwatch-kernel-stm32l4 2.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate mwatch-kernel-stm32l4 2.0.0 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c07dd76103a10bbc2afdcde719a55fd172c080687806ecc39c6770e6265638ed
[INFO] running `Command { std: "docker" "start" "-a" "c07dd76103a10bbc2afdcde719a55fd172c080687806ecc39c6770e6265638ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c07dd76103a10bbc2afdcde719a55fd172c080687806ecc39c6770e6265638ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c07dd76103a10bbc2afdcde719a55fd172c080687806ecc39c6770e6265638ed", kill_on_drop: false }`
[INFO] [stdout] c07dd76103a10bbc2afdcde719a55fd172c080687806ecc39c6770e6265638ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8eedb60e4851fd6d868e3e22935e3900f02c271821a89e82cdfad2d5d5c909e
[INFO] running `Command { std: "docker" "start" "-a" "a8eedb60e4851fd6d868e3e22935e3900f02c271821a89e82cdfad2d5d5c909e", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling heapless v0.4.4
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking embedded-graphics-core v0.3.3
[INFO] [stderr]    Compiling stm32l4 v0.8.0
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]    Compiling heapless v0.6.1
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]    Compiling cortex-m-rtic v0.5.9
[INFO] [stderr]     Checking micromath v1.1.1
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking time-core v0.1.0
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking simple-hex v0.1.0
[INFO] [stderr]     Checking time v0.3.17
[INFO] [stderr]    Compiling mwatch-kernel-stm32l4 v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rtic-core v0.3.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 max17048 v0.1.0
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking panic-rtt-target v0.1.2
[INFO] [stderr]     Checking embedded-graphics v0.7.1
[INFO] [stderr]     Checking ssd1351 v0.4.2
[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" "a8eedb60e4851fd6d868e3e22935e3900f02c271821a89e82cdfad2d5d5c909e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8eedb60e4851fd6d868e3e22935e3900f02c271821a89e82cdfad2d5d5c909e", kill_on_drop: false }`
[INFO] [stdout] a8eedb60e4851fd6d868e3e22935e3900f02c271821a89e82cdfad2d5d5c909e
