[INFO] fetching crate hotwatch 0.5.0...
[INFO] checking hotwatch-0.5.0 against master#8549802939cd01111c46e34a7b67cb1933977af9 for pr-132712
[INFO] extracting crate hotwatch 0.5.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate hotwatch 0.5.0 on toolchain 8549802939cd01111c46e34a7b67cb1933977af9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8549802939cd01111c46e34a7b67cb1933977af9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hotwatch 0.5.0
[INFO] finished tweaking crates.io crate hotwatch 0.5.0
[INFO] tweaked toml for crates.io crate hotwatch 0.5.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate hotwatch 0.5.0 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" "+8549802939cd01111c46e34a7b67cb1933977af9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.163
[INFO] [stderr]   Downloaded ryu v1.0.13
[INFO] [stderr]   Downloaded file-id v0.1.0
[INFO] [stderr]   Downloaded quote v1.0.28
[INFO] [stderr]   Downloaded filetime v0.2.21
[INFO] [stderr]   Downloaded addr2line v0.19.0
[INFO] [stderr]   Downloaded inotify-sys v0.1.5
[INFO] [stderr]   Downloaded windows-targets v0.48.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.7
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded unicode-xid v0.2.4
[INFO] [stderr]   Downloaded miniz_oxide v0.6.2
[INFO] [stderr]   Downloaded cc v1.0.79
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.8
[INFO] [stderr]   Downloaded mio v0.8.8
[INFO] [stderr]   Downloaded serde_json v1.0.96
[INFO] [stderr]   Downloaded smallvec v1.10.0
[INFO] [stderr]   Downloaded parking_lot v0.12.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.23
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded syn v2.0.18
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.15
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded inotify v0.9.6
[INFO] [stderr]   Downloaded log v0.4.18
[INFO] [stderr]   Downloaded lock_api v0.4.9
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.2
[INFO] [stderr]   Downloaded redox_syscall v0.2.16
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.2
[INFO] [stderr]   Downloaded walkdir v2.3.3
[INFO] [stderr]   Downloaded itoa v1.0.6
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded notify-debouncer-full v0.1.0
[INFO] [stderr]   Downloaded serde v1.0.163
[INFO] [stderr]   Downloaded kqueue-sys v1.0.3
[INFO] [stderr]   Downloaded windows-targets v0.42.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.59
[INFO] [stderr]   Downloaded fsevent-sys v4.1.0
[INFO] [stderr]   Downloaded kqueue v1.0.7
[INFO] [stderr]   Downloaded notify v6.0.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.48.0
[INFO] [stderr]   Downloaded libc v0.2.144
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.48.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.48.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.2
[INFO] [stderr]   Downloaded windows_i686_msvc v0.48.0
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded windows_i686_gnu v0.48.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.2
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.2
[INFO] [stderr]   Downloaded windows_i686_msvc v0.42.2
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.42.2
[INFO] [stderr]   Downloaded unicode-ident v1.0.9
[INFO] [stderr]   Downloaded windows-sys v0.45.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+8549802939cd01111c46e34a7b67cb1933977af9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd8fa2d7b4fbc841f38c60d15263c95e364096da4f5d3d5111795928c05348b6
[INFO] running `Command { std: "docker" "start" "-a" "cd8fa2d7b4fbc841f38c60d15263c95e364096da4f5d3d5111795928c05348b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd8fa2d7b4fbc841f38c60d15263c95e364096da4f5d3d5111795928c05348b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8fa2d7b4fbc841f38c60d15263c95e364096da4f5d3d5111795928c05348b6", kill_on_drop: false }`
[INFO] [stdout] cd8fa2d7b4fbc841f38c60d15263c95e364096da4f5d3d5111795928c05348b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+8549802939cd01111c46e34a7b67cb1933977af9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27b310932d3397cc8a1aad1d1e9bea8cc70b822d7e18f4971ca9df251aa47a8f
[INFO] running `Command { std: "docker" "start" "-a" "27b310932d3397cc8a1aad1d1e9bea8cc70b822d7e18f4971ca9df251aa47a8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking file-id v0.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/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 object v0.30.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[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" "27b310932d3397cc8a1aad1d1e9bea8cc70b822d7e18f4971ca9df251aa47a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b310932d3397cc8a1aad1d1e9bea8cc70b822d7e18f4971ca9df251aa47a8f", kill_on_drop: false }`
[INFO] [stdout] 27b310932d3397cc8a1aad1d1e9bea8cc70b822d7e18f4971ca9df251aa47a8f