[INFO] cloning repository https://github.com/fschuetz/mud-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fschuetz/mud-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffschuetz%2Fmud-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffschuetz%2Fmud-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea196d26811bdaefecae0cbcc207e7666cff6734
[INFO] testing fschuetz/mud-server/ea196d26811bdaefecae0cbcc207e7666cff6734 against try#613d1972a772987ed4ee06faccbab0e2fc839871+rustflags=-Copt-level=3 for pr-107051
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffschuetz%2Fmud-server" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/fschuetz/mud-server on toolchain 613d1972a772987ed4ee06faccbab0e2fc839871
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/fschuetz/mud-server
[INFO] finished tweaking git repo https://github.com/fschuetz/mud-server
[INFO] tweaked toml for git repo https://github.com/fschuetz/mud-server written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fschuetz/mud-server 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" "+613d1972a772987ed4ee06faccbab0e2fc839871" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 989fb209e3e221152a26bc35fc20d9a192d37ee1989bfa35942d731313ba4025
[INFO] running `Command { std: "docker" "start" "-a" "989fb209e3e221152a26bc35fc20d9a192d37ee1989bfa35942d731313ba4025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "989fb209e3e221152a26bc35fc20d9a192d37ee1989bfa35942d731313ba4025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "989fb209e3e221152a26bc35fc20d9a192d37ee1989bfa35942d731313ba4025", kill_on_drop: false }`
[INFO] [stdout] 989fb209e3e221152a26bc35fc20d9a192d37ee1989bfa35942d731313ba4025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -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" "+613d1972a772987ed4ee06faccbab0e2fc839871" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41eb66a3facc1559bf2698cea97c7622d37f23f3f17efccdd2c566d80e1599e6
[INFO] running `Command { std: "docker" "start" "-a" "41eb66a3facc1559bf2698cea97c7622d37f23f3f17efccdd2c566d80e1599e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling fastrand v1.6.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling base64ct v1.3.3
[INFO] [stderr]    Compiling password-hash v0.2.3
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling tower-layer v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]    Compiling pbkdf2 v0.8.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling blowfish v0.8.0
[INFO] [stderr]    Compiling ctr v0.8.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling bcrypt-pbkdf v0.6.2
[INFO] [stderr]    Compiling block-modes v0.8.1
[INFO] [stderr]    Compiling aes v0.7.5
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling cryptovec v0.6.1
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling yasna v0.4.0
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling serde-hjson v0.9.1
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling generational-arena v0.2.8
[INFO] [stderr]    Compiling hdrhistogram v7.4.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.85/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=e7f320076a693462 -C extra-filename=-e7f320076a693462 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d937f1f82ffb437d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-67e27136f08bcb92.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.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" "41eb66a3facc1559bf2698cea97c7622d37f23f3f17efccdd2c566d80e1599e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41eb66a3facc1559bf2698cea97c7622d37f23f3f17efccdd2c566d80e1599e6", kill_on_drop: false }`
[INFO] [stdout] 41eb66a3facc1559bf2698cea97c7622d37f23f3f17efccdd2c566d80e1599e6