[INFO] fetching crate capricorn 0.1.93...
[INFO] testing capricorn-0.1.93 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] extracting crate capricorn 0.1.93 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate capricorn 0.1.93
[INFO] finished tweaking crates.io crate capricorn 0.1.93
[INFO] tweaked toml for crates.io crate capricorn 0.1.93 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate capricorn 0.1.93 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 166 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[INFO] [stderr]       Adding tendril v0.4.3 (available: v0.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fd8264f205084df92af7f98b8770f606a113f61acad7cb699ce42a54d1b9210
[INFO] running `Command { std: "docker" "start" "-a" "0fd8264f205084df92af7f98b8770f606a113f61acad7cb699ce42a54d1b9210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fd8264f205084df92af7f98b8770f606a113f61acad7cb699ce42a54d1b9210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd8264f205084df92af7f98b8770f606a113f61acad7cb699ce42a54d1b9210", kill_on_drop: false }`
[INFO] [stdout] 0fd8264f205084df92af7f98b8770f606a113f61acad7cb699ce42a54d1b9210
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c5a94f9116b0bca8b327090a775a7e7a26d649aa5e176398ce8b08d26f0bd63
[INFO] running `Command { std: "docker" "start" "-a" "3c5a94f9116b0bca8b327090a775a7e7a26d649aa5e176398ce8b08d26f0bd63", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling siphasher v1.0.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling globset v0.4.18
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling synstructure v0.12.6
[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/33835004928d3bf65db4d4712e1330766263b0bd/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.117/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="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", "test", "visit", "visit-mut"))' -C metadata=85214c07a2884d5f -C extra-filename=-72d449d85071252c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-774d2fb1b129607b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e79a3b083d919da9.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-af4dab7b77cddc19.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/33835004928d3bf65db4d4712e1330766263b0bd/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --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=a55e4c45c6f03855 -C extra-filename=-753a2932468b1af8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-774d2fb1b129607b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e79a3b083d919da9.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-af4dab7b77cddc19.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "3c5a94f9116b0bca8b327090a775a7e7a26d649aa5e176398ce8b08d26f0bd63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c5a94f9116b0bca8b327090a775a7e7a26d649aa5e176398ce8b08d26f0bd63", kill_on_drop: false }`
[INFO] [stdout] 3c5a94f9116b0bca8b327090a775a7e7a26d649aa5e176398ce8b08d26f0bd63
