[INFO] cloning repository https://github.com/bochaco/rust-hello-world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bochaco/rust-hello-world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbochaco%2Frust-hello-world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbochaco%2Frust-hello-world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b78e69290f0ca83e30758c9e738ecdb380dfa955
[INFO] testing bochaco/rust-hello-world against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbochaco%2Frust-hello-world" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bochaco/rust-hello-world on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bochaco/rust-hello-world
[INFO] finished tweaking git repo https://github.com/bochaco/rust-hello-world
[INFO] tweaked toml for git repo https://github.com/bochaco/rust-hello-world written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate git repo https://github.com/bochaco/rust-hello-world already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.8
[INFO] [stderr]   Downloaded miniz_oxide v0.3.1
[INFO] [stderr]   Downloaded syn v0.15.43
[INFO] [stderr]   Downloaded actix-rt v0.2.4
[INFO] [stderr]   Downloaded actix-connect v0.2.3
[INFO] [stderr]   Downloaded actix-server v0.6.0
[INFO] [stderr]   Downloaded arc-swap v0.4.1
[INFO] [stderr]   Downloaded actix-http v0.2.8
[INFO] [stderr]   Downloaded regex v1.2.1
[INFO] [stderr]   Downloaded awc v0.2.3
[INFO] [stderr]   Downloaded actix-web v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a21f2266fdaceeaf952a969e0df6040bbd6f11a7f6edb6469206b26887b09d1
[INFO] running `Command { std: "docker" "start" "-a" "4a21f2266fdaceeaf952a969e0df6040bbd6f11a7f6edb6469206b26887b09d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a21f2266fdaceeaf952a969e0df6040bbd6f11a7f6edb6469206b26887b09d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a21f2266fdaceeaf952a969e0df6040bbd6f11a7f6edb6469206b26887b09d1", kill_on_drop: false }`
[INFO] [stdout] 4a21f2266fdaceeaf952a969e0df6040bbd6f11a7f6edb6469206b26887b09d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd1bc59627653009e2c0bef79b1e7e6fe6dd79f147d6a62f72583c0c263b6432
[INFO] running `Command { std: "docker" "start" "-a" "cd1bc59627653009e2c0bef79b1e7e6fe6dd79f147d6a62f72583c0c263b6432", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling futures v0.1.28
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v0.15.43
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.6.11
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]    Compiling arc-swap v0.4.1
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling copyless v0.1.4
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling hashbrown v0.5.0
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[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-0.15.43/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --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"' -C metadata=3a9a15821d322ca7 -C extra-filename=-3a9a15821d322ca7 --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 --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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cd1bc59627653009e2c0bef79b1e7e6fe6dd79f147d6a62f72583c0c263b6432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd1bc59627653009e2c0bef79b1e7e6fe6dd79f147d6a62f72583c0c263b6432", kill_on_drop: false }`
[INFO] [stdout] cd1bc59627653009e2c0bef79b1e7e6fe6dd79f147d6a62f72583c0c263b6432