[INFO] fetching crate microswitch 2.0.0...
[INFO] building microswitch-2.0.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate microswitch 2.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate microswitch 2.0.0
[INFO] finished tweaking crates.io crate microswitch 2.0.0
[INFO] tweaked toml for crates.io crate microswitch 2.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate microswitch 2.0.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate microswitch 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b97592eb0e7486b201bc0e69896be556f47ff51497e3346610f9ae4484bbc56
[INFO] running `Command { std: "docker" "start" "-a" "1b97592eb0e7486b201bc0e69896be556f47ff51497e3346610f9ae4484bbc56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b97592eb0e7486b201bc0e69896be556f47ff51497e3346610f9ae4484bbc56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b97592eb0e7486b201bc0e69896be556f47ff51497e3346610f9ae4484bbc56", kill_on_drop: false }`
[INFO] [stdout] 1b97592eb0e7486b201bc0e69896be556f47ff51497e3346610f9ae4484bbc56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 752264cb684bf5527a6453b5602353c465be4f3508b242f9bb53c4989b512013
[INFO] running `Command { std: "docker" "start" "-a" "752264cb684bf5527a6453b5602353c465be4f3508b242f9bb53c4989b512013", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling nom v7.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling spirv_headers v1.5.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling minimal-lexical v0.1.3
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling tracing-core v0.1.19
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling khronos-egl v3.0.2
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling wgpu-core v0.7.1
[INFO] [stderr]    Compiling ash v0.31.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nix v0.20.1
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr] error: could not compile `nom` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name nom --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nom-7.0.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "docsrs", "std"))' -C metadata=39e767b22740562d -C extra-filename=-aa34af2295453547 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-d10dd2182d638e7d.rmeta --extern minimal_lexical=/opt/rustwide/target/debug/deps/libminimal_lexical-bb32569ed4f55e50.rmeta --cap-lints allow --cap-lints=forbid --cfg stable_i128` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.65/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=0deab40e7240f48e -C extra-filename=-1e0913f1694b6b0b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-af190eefa8a5a4ca.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ce8f5b993b415f1c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-9a308e948d49b175.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "752264cb684bf5527a6453b5602353c465be4f3508b242f9bb53c4989b512013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752264cb684bf5527a6453b5602353c465be4f3508b242f9bb53c4989b512013", kill_on_drop: false }`
[INFO] [stdout] 752264cb684bf5527a6453b5602353c465be4f3508b242f9bb53c4989b512013