[INFO] fetching crate ommui_data 0.39.0...
[INFO] testing ommui_data-0.39.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate ommui_data 0.39.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ommui_data 0.39.0
[INFO] finished tweaking crates.io crate ommui_data 0.39.0
[INFO] tweaked toml for crates.io crate ommui_data 0.39.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ommui_data 0.39.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 306 packages to latest compatible versions
[INFO] [stderr]       Adding askama v0.8.0 (available: v0.14.0)
[INFO] [stderr]       Adding decorum v0.1.3 (available: v0.4.0)
[INFO] [stderr]       Adding directories v2.0.2 (available: v6.0.0)
[INFO] [stderr]       Adding env_logger v0.7.1 (available: v0.11.8)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.11.0)
[INFO] [stderr]       Adding minidom v0.11.1 (available: v0.16.0)
[INFO] [stderr]       Adding quick-xml v0.16.1 (available: v0.38.3)
[INFO] [stderr]       Adding reqwest v0.9.24 (available: v0.12.23)
[INFO] [stderr]       Adding snafu v0.5.0 (available: v0.8.8)
[INFO] [stderr]       Adding uuid v0.7.4 (available: v1.18.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a557ca9c575b26eecf47d710303ad06730a0325ae2fa574c07f9428427daf7a1
[INFO] running `Command { std: "docker" "start" "-a" "a557ca9c575b26eecf47d710303ad06730a0325ae2fa574c07f9428427daf7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a557ca9c575b26eecf47d710303ad06730a0325ae2fa574c07f9428427daf7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a557ca9c575b26eecf47d710303ad06730a0325ae2fa574c07f9428427daf7a1", kill_on_drop: false }`
[INFO] [stdout] a557ca9c575b26eecf47d710303ad06730a0325ae2fa574c07f9428427daf7a1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1773ab56ed55c00538c99efebc822ebc0424fa9c14b44b8ff37080dba967230
[INFO] running `Command { std: "docker" "start" "-a" "c1773ab56ed55c00538c99efebc822ebc0424fa9c14b44b8ff37080dba967230", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling cc v1.2.34
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling tinyvec v1.10.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling bidir-map v1.0.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling array-init v0.0.4
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling temp-dir v0.1.16
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling gettext-sys v0.22.5
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]    Compiling string v0.2.1
[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/b83b707f97d809763b7861afa7638871f3339a33/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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"' --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=517458439f8e1795 -C extra-filename=-d7d41bb6ebf4d61e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0a3b3fe24b469f09.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e098ac900c08002b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b3925cc8f83e9ac1.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c1773ab56ed55c00538c99efebc822ebc0424fa9c14b44b8ff37080dba967230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1773ab56ed55c00538c99efebc822ebc0424fa9c14b44b8ff37080dba967230", kill_on_drop: false }`
[INFO] [stdout] c1773ab56ed55c00538c99efebc822ebc0424fa9c14b44b8ff37080dba967230