[INFO] cloning repository https://github.com/mtso/rabbithole
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtso/rabbithole" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtso%2Frabbithole", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtso%2Frabbithole'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e15470e5aa7ec22186a8814f5c27d67e0cda04d
[INFO] testing mtso/rabbithole against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtso%2Frabbithole" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mtso/rabbithole
[INFO] finished tweaking git repo https://github.com/mtso/rabbithole
[INFO] tweaked toml for git repo https://github.com/mtso/rabbithole written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mtso/rabbithole on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mtso/rabbithole 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell v1.11.0
[INFO] [stderr]   Downloaded reql-macros v0.3.0
[INFO] [stderr]   Downloaded scram v0.6.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.39
[INFO] [stderr]   Downloaded input_buffer v0.5.0
[INFO] [stderr]   Downloaded which v4.2.5
[INFO] [stderr]   Downloaded ql2 v2.1.1
[INFO] [stderr]   Downloaded async-net v1.6.1
[INFO] [stderr]   Downloaded reql v0.11.0
[INFO] [stderr]   Downloaded built v0.5.1
[INFO] [stderr]   Downloaded snafu v0.7.1
[INFO] [stderr]   Downloaded cargo-lock v7.1.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.73
[INFO] [stderr]   Downloaded amiquip v0.4.2
[INFO] [stderr]   Downloaded redis v0.21.5
[INFO] [stderr]   Downloaded snafu-derive v0.7.1
[INFO] [stderr]   Downloaded openssl v0.10.40
[INFO] [stderr]   Downloaded syn v1.0.95
[INFO] [stderr]   Downloaded tokio v1.18.2
[INFO] [stderr]   Downloaded reql-types v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbe68ac53ed435730f9d72d1f4cd1711ec60260516165040aac35a7c8640f4a0
[INFO] running `Command { std: "docker" "start" "-a" "fbe68ac53ed435730f9d72d1f4cd1711ec60260516165040aac35a7c8640f4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbe68ac53ed435730f9d72d1f4cd1711ec60260516165040aac35a7c8640f4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe68ac53ed435730f9d72d1f4cd1711ec60260516165040aac35a7c8640f4a0", kill_on_drop: false }`
[INFO] [stdout] fbe68ac53ed435730f9d72d1f4cd1711ec60260516165040aac35a7c8640f4a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 308d8ce79a2a7ec1a2aa9f30a4b06fa8ff49d8423890a86fdcb7e469b16126de
[INFO] running `Command { std: "docker" "start" "-a" "308d8ce79a2a7ec1a2aa9f30a4b06fa8ff49d8423890a86fdcb7e469b16126de", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling once_cell v1.11.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling slab v0.4.6
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling tracing-core v0.1.26
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling http v0.2.7
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling crypto-common v0.1.3
[INFO] [stderr]    Compiling mio v0.8.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling universal-hash v0.4.1
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling cookie-factory v0.2.4
[INFO] [stderr]    Compiling openssl-sys v0.9.73
[INFO] [stderr]    Compiling polyval v0.5.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling which v4.2.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling semver v1.0.9
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling ghash v0.4.4
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling aes v0.7.5
[INFO] [stderr]    Compiling ctr v0.8.0
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling aead v0.4.3
[INFO] [stderr]    Compiling cookie v0.16.0
[INFO] [stderr]    Compiling inlinable_string v0.1.15
[INFO] [stderr]    Compiling ref-cast v1.0.7
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling aes-gcm v0.9.4
[INFO] [stderr]    Compiling hkdf v0.12.3
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling uncased v0.9.7
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling tokio v1.18.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling stable-pattern v0.1.0
[INFO] [stderr]    Compiling tracing v0.1.34
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]    Compiling event-listener v2.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling state v0.5.3
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling multer v2.0.2
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling async-task v4.2.0
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling time v0.3.9
[INFO] [stderr]    Compiling blocking v1.2.0
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling rocket v0.5.0-rc.2
[INFO] [stderr]    Compiling spin v0.9.3
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling devise_core v0.3.1
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling hyper v0.14.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling scram v0.6.0
[INFO] [stderr]    Compiling async-net v1.6.1
[INFO] [stderr]    Compiling combine v4.6.4
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling input_buffer v0.5.0
[INFO] [stderr]    Compiling binascii v0.1.4
[INFO] [stderr]    Compiling dtoa v0.4.8
[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/d98a5da813da67eb189387b8ccfb73cf481275d8/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.95/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=d7649d48b238c6a6 -C extra-filename=-f469f40401190605 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6e3b9f71c2618011.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-fa4bb34846f9d5d4.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-7ce2824d5ae2c610.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "308d8ce79a2a7ec1a2aa9f30a4b06fa8ff49d8423890a86fdcb7e469b16126de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "308d8ce79a2a7ec1a2aa9f30a4b06fa8ff49d8423890a86fdcb7e469b16126de", kill_on_drop: false }`
[INFO] [stdout] 308d8ce79a2a7ec1a2aa9f30a4b06fa8ff49d8423890a86fdcb7e469b16126de
