[INFO] fetching crate masquerade-proxy 0.1.0...
[INFO] checking masquerade-proxy-0.1.0 against master#20d90b14ffe8c667757a70c08e2d9736ee89f493 for pr-110799
[INFO] extracting crate masquerade-proxy 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate masquerade-proxy 0.1.0 on toolchain 20d90b14ffe8c667757a70c08e2d9736ee89f493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate masquerade-proxy 0.1.0
[INFO] finished tweaking crates.io crate masquerade-proxy 0.1.0
[INFO] tweaked toml for crates.io crate masquerade-proxy 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate masquerade-proxy 0.1.0 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" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-log v0.2.11
[INFO] [stderr]   Downloaded tokio v1.20.4
[INFO] [stderr]   Downloaded octets v0.2.0
[INFO] [stderr]   Downloaded socks5-proto v0.3.2
[INFO] [stderr]   Downloaded quiche v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67510df91e177adb274d268ca358beb98b657ba4b07546395d46fa7a4ab0479d
[INFO] running `Command { std: "docker" "start" "-a" "67510df91e177adb274d268ca358beb98b657ba4b07546395d46fa7a4ab0479d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67510df91e177adb274d268ca358beb98b657ba4b07546395d46fa7a4ab0479d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67510df91e177adb274d268ca358beb98b657ba4b07546395d46fa7a4ab0479d", kill_on_drop: false }`
[INFO] [stdout] 67510df91e177adb274d268ca358beb98b657ba4b07546395d46fa7a4ab0479d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c18466b8d8b4b5deeef3ba72210660ffb169d9fdb02ccb8797e9bd5876f246f
[INFO] running `Command { std: "docker" "start" "-a" "4c18466b8d8b4b5deeef3ba72210660ffb169d9fdb02ccb8797e9bd5876f246f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]    Compiling tokio v1.20.4
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]     Checking linux-raw-sys v0.1.3
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking octets v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling quiche v0.16.0
[INFO] [stderr]     Checking io-lifetimes v1.0.3
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking is-terminal v0.4.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr] error: could not compile `syn` (lib)
[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/index.crates.io-6f17d22bba15001f/syn-1.0.105/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"' -C metadata=724b20bbf2c5abec -C extra-filename=-724b20bbf2c5abec --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-78112dd62a36529c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0a287cd46e4f0e4c.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-3f524f161ec034d9.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4c18466b8d8b4b5deeef3ba72210660ffb169d9fdb02ccb8797e9bd5876f246f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c18466b8d8b4b5deeef3ba72210660ffb169d9fdb02ccb8797e9bd5876f246f", kill_on_drop: false }`
[INFO] [stdout] 4c18466b8d8b4b5deeef3ba72210660ffb169d9fdb02ccb8797e9bd5876f246f