[INFO] fetching crate termbook-cli 1.4.6...
[INFO] testing termbook-cli-1.4.6 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate termbook-cli 1.4.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate termbook-cli 1.4.6 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate termbook-cli 1.4.6
[INFO] finished tweaking crates.io crate termbook-cli 1.4.6
[INFO] tweaked toml for crates.io crate termbook-cli 1.4.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate termbook-cli 1.4.6 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" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded onig v4.3.3
[INFO] [stderr]   Downloaded pulldown-cmark-to-cmark v2.0.1
[INFO] [stderr]   Downloaded siphasher v0.3.2
[INFO] [stderr]   Downloaded gitignore v1.0.6
[INFO] [stderr]   Downloaded filetime v0.2.9
[INFO] [stderr]   Downloaded ammonia v3.1.0
[INFO] [stderr]   Downloaded string_cache v0.8.0
[INFO] [stderr]   Downloaded xml-rs v0.8.2
[INFO] [stderr]   Downloaded termbook v1.4.2
[INFO] [stderr]   Downloaded syntect v3.1.0
[INFO] [stderr]   Downloaded inotify v0.7.0
[INFO] [stderr]   Downloaded ws v0.9.1
[INFO] [stderr]   Downloaded pulldown-cmark-to-cmark v4.0.0
[INFO] [stderr]   Downloaded notify v4.0.15
[INFO] [stderr]   Downloaded mdcat v0.15.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.36
[INFO] [stderr]   Downloaded mdbook v0.3.7
[INFO] [stderr]   Downloaded onig_sys v69.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5a055167eb3b660aa3e025c3c332b7e97ef44effd5c22704649fa249a94b903
[INFO] running `Command { std: "docker" "start" "-a" "c5a055167eb3b660aa3e025c3c332b7e97ef44effd5c22704649fa249a94b903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5a055167eb3b660aa3e025c3c332b7e97ef44effd5c22704649fa249a94b903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5a055167eb3b660aa3e025c3c332b7e97ef44effd5c22704649fa249a94b903", kill_on_drop: false }`
[INFO] [stdout] c5a055167eb3b660aa3e025c3c332b7e97ef44effd5c22704649fa249a94b903
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c053c366f4bd3192bc2a05e2e794380a521aa66c69029352a30ed6d1478f4cfb
[INFO] running `Command { std: "docker" "start" "-a" "c053c366f4bd3192bc2a05e2e794380a521aa66c69029352a30ed6d1478f4cfb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling siphasher v0.3.2
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/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="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"' -C metadata=a529d866e2231dd5 -C extra-filename=-a529d866e2231dd5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-74cf65b213176c4b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-520fec877571f6ee.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-17df5e5ca0bb5bda.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3 --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c053c366f4bd3192bc2a05e2e794380a521aa66c69029352a30ed6d1478f4cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c053c366f4bd3192bc2a05e2e794380a521aa66c69029352a30ed6d1478f4cfb", kill_on_drop: false }`
[INFO] [stdout] c053c366f4bd3192bc2a05e2e794380a521aa66c69029352a30ed6d1478f4cfb