[INFO] cloning repository https://github.com/approvers/message-alias-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/approvers/message-alias-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2Fmessage-alias-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2Fmessage-alias-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02bb011de7d06e242a275dd9a9126a21effc6854
[INFO] testing approvers/message-alias-bot against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2Fmessage-alias-bot" "/workspace/builds/worker-66/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-66/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/approvers/message-alias-bot on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-66/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/approvers/message-alias-bot
[INFO] finished tweaking git repo https://github.com/approvers/message-alias-bot
[INFO] tweaked toml for git repo https://github.com/approvers/message-alias-bot written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] crate git repo https://github.com/approvers/message-alias-bot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v2.10.0
[INFO] [stderr]   Downloaded tokio-rustls v0.23.3
[INFO] [stderr]   Downloaded os_info v3.2.0
[INFO] [stderr]   Downloaded mongodb v2.1.0
[INFO] [stderr]   Downloaded inline-python v0.8.0
[INFO] [stderr]   Downloaded inline-python-macros v0.8.0
[INFO] [stderr]   Downloaded xxhash-rust v0.8.4
[INFO] [stderr]   Downloaded serenity v0.10.10
[INFO] [stderr]   Downloaded memsec v0.6.0
[INFO] [stderr]   Downloaded pyo3-build-config v0.15.1
[INFO] [stderr]   Downloaded pyo3 v0.15.1
[INFO] [stderr]   Downloaded trust-dns-proto v0.20.4
[INFO] [stderr]   Downloaded typed-builder v0.9.1
[INFO] [stderr]   Downloaded nettle-sys v2.1.0
[INFO] [stderr]   Downloaded trust-dns-resolver v0.20.4
[INFO] [stderr]   Downloaded cmake v0.1.48
[INFO] [stderr]   Downloaded bzip2 v0.4.3
[INFO] [stderr]   Downloaded nettle v7.1.0
[INFO] [stderr]   Downloaded lalrpop v0.19.7
[INFO] [stderr]   Downloaded rustls v0.20.4
[INFO] [stderr]   Downloaded sha1collisiondetection v0.2.5
[INFO] [stderr]   Downloaded string_cache v0.8.3
[INFO] [stderr]   Downloaded sequoia-openpgp v1.8.0
[INFO] [stderr]   Downloaded shellwords v1.1.0
[INFO] [stderr]   Downloaded bson v2.1.0
[INFO] [stderr]   Downloaded dyn-clone v1.0.5
[INFO] [stderr]   Downloaded lalrpop-util v0.19.7
[INFO] [stderr]   Downloaded rustls-pemfile v0.3.0
[INFO] [stderr]   Downloaded serde_with v1.12.0
[INFO] [stderr]   Downloaded buffered-reader v1.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be385f1d92c6483522a6787441db85b88ed51bced0d05d1d220ca47f57d5d2ec
[INFO] running `Command { std: "docker" "start" "-a" "be385f1d92c6483522a6787441db85b88ed51bced0d05d1d220ca47f57d5d2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be385f1d92c6483522a6787441db85b88ed51bced0d05d1d220ca47f57d5d2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be385f1d92c6483522a6787441db85b88ed51bced0d05d1d220ca47f57d5d2ec", kill_on_drop: false }`
[INFO] [stdout] be385f1d92c6483522a6787441db85b88ed51bced0d05d1d220ca47f57d5d2ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0bc138df22339508ec9c540a7bda4939bd9d03dcb72db1b030483b2a637b3d6
[INFO] running `Command { std: "docker" "start" "-a" "c0bc138df22339508ec9c540a7bda4939bd9d03dcb72db1b030483b2a637b3d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling bytemuck v1.8.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling serenity v0.10.10
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling lalrpop-util v0.19.7
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling typemap_rev v0.1.5
[INFO] [stderr]    Compiling memsec v0.6.0
[INFO] [stderr]    Compiling dyn-clone v1.0.5
[INFO] [stderr]    Compiling xxhash-rust v0.8.4
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling clang-sys v1.3.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling tracing-core v0.1.23
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling input_buffer v0.3.1
[INFO] [stderr]    Compiling rustls-pemfile v0.3.0
[INFO] [stderr]    Compiling rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling shellwords v1.1.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling png v0.17.5
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling os_info v3.2.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.9
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling string_cache v0.8.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling crypto-common v0.1.3
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling ordered-float v2.10.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling sha1collisiondetection v0.2.5
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling pbkdf2 v0.8.0
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling lalrpop v0.19.7
[INFO] [stderr]    Compiling tungstenite v0.11.1
[INFO] [stderr]    Compiling pathfinder_simd v0.5.1
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling chrono-tz-build v0.0.2
[INFO] [stderr]    Compiling freetype v0.7.0
[INFO] [stderr]    Compiling plotters-bitmap v0.3.1
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling chrono-tz v0.6.1
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling buffered-reader v1.1.2
[INFO] [stderr]    Compiling font-kit v0.10.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.89/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"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=9a55576cbdebcaf5 -C extra-filename=-9a55576cbdebcaf5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d0e4c723ecad0f39.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7971c432cde1980f.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-d8167d72773bee47.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c0bc138df22339508ec9c540a7bda4939bd9d03dcb72db1b030483b2a637b3d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0bc138df22339508ec9c540a7bda4939bd9d03dcb72db1b030483b2a637b3d6", kill_on_drop: false }`
[INFO] [stdout] c0bc138df22339508ec9c540a7bda4939bd9d03dcb72db1b030483b2a637b3d6