[INFO] cloning repository https://github.com/chritchens/liquefy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chritchens/liquefy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchritchens%2Fliquefy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchritchens%2Fliquefy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 629f1747cd8caba9b28dc0ed1a34b72d9df1f01a
[INFO] checking chritchens/liquefy against master#32c26302620b2dbbe0a2291f1969bc0b1622ae59 for pr-95755
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchritchens%2Fliquefy" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chritchens/liquefy on toolchain 32c26302620b2dbbe0a2291f1969bc0b1622ae59
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32c26302620b2dbbe0a2291f1969bc0b1622ae59" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chritchens/liquefy
[INFO] finished tweaking git repo https://github.com/chritchens/liquefy
[INFO] tweaked toml for git repo https://github.com/chritchens/liquefy written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/chritchens/liquefy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32c26302620b2dbbe0a2291f1969bc0b1622ae59" "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 thiserror-impl v1.0.9
[INFO] [stderr]   Downloaded hermit-abi v0.1.6
[INFO] [stderr]   Downloaded mime_guess v2.0.1
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.3
[INFO] [stderr]   Downloaded sourcefile v0.1.4
[INFO] [stderr]   Downloaded futures-task v0.3.1
[INFO] [stderr]   Downloaded md5 v0.6.1
[INFO] [stderr]   Downloaded bumpalo v3.1.2
[INFO] [stderr]   Downloaded webpki-roots v0.17.0
[INFO] [stderr]   Downloaded thiserror v1.0.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.7
[INFO] [stderr]   Downloaded surf v1.0.3
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.58
[INFO] [stderr]   Downloaded anyhow v1.0.26
[INFO] [stderr]   Downloaded web-sys v0.3.35
[INFO] [stderr]   Downloaded js-sys v0.3.35
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.58
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.58
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.58
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded pin-utils v0.1.0-alpha.4
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.27
[INFO] [stderr]   Downloaded unicode-normalization v0.1.11
[INFO] [stderr]   Downloaded isahc v0.7.6
[INFO] [stderr]   Downloaded smallvec v1.1.0
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded async-tls v0.6.0
[INFO] [stderr]   Downloaded async-tungstenite v0.3.1
[INFO] [stderr]   Downloaded webpki v0.21.0
[INFO] [stderr]   Downloaded futures-core v0.3.1
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]   Downloaded http v0.2.0
[INFO] [stderr]   Downloaded futures-util v0.3.1
[INFO] [stderr]   Downloaded once_cell v1.2.0
[INFO] [stderr]   Downloaded futures-executor v0.3.1
[INFO] [stderr]   Downloaded untrusted v0.7.0
[INFO] [stderr]   Downloaded futures-macro v0.3.1
[INFO] [stderr]   Downloaded url v2.1.0
[INFO] [stderr]   Downloaded syn v1.0.13
[INFO] [stderr]   Downloaded cc v1.0.49
[INFO] [stderr]   Downloaded async-task v1.2.0
[INFO] [stderr]   Downloaded pin-project-lite v0.1.2
[INFO] [stderr]   Downloaded sluice v0.4.2
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]   Downloaded weedle v0.10.0
[INFO] [stderr]   Downloaded input_buffer v0.2.0
[INFO] [stderr]   Downloaded bytes v0.5.3
[INFO] [stderr]   Downloaded futures-channel v0.3.1
[INFO] [stderr]   Downloaded pin-project-internal v0.4.6
[INFO] [stderr]   Downloaded tungstenite v0.9.2
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded pin-project v0.4.6
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.58
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.11
[INFO] [stderr]   Downloaded futures v0.3.1
[INFO] [stderr]   Downloaded futures-io v0.3.1
[INFO] [stderr]   Downloaded async-std v1.4.0
[INFO] [stderr]   Downloaded futures-sink v0.3.1
[INFO] [stderr]   Downloaded kv-log-macro v1.0.4
[INFO] [stderr]   Downloaded rug v1.6.0
[INFO] [stderr]   Downloaded rustls v0.16.0
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.2
[INFO] [stderr]   Downloaded ring v0.16.9
[INFO] [stderr]   Downloaded curl-sys v0.4.25
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.1.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+32c26302620b2dbbe0a2291f1969bc0b1622ae59" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ad2be4003a2ef9d3569d56385887cec140c06c67fe0d5f5aa4f1e675cde66cd
[INFO] running `Command { std: "docker" "start" "-a" "6ad2be4003a2ef9d3569d56385887cec140c06c67fe0d5f5aa4f1e675cde66cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ad2be4003a2ef9d3569d56385887cec140c06c67fe0d5f5aa4f1e675cde66cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad2be4003a2ef9d3569d56385887cec140c06c67fe0d5f5aa4f1e675cde66cd", kill_on_drop: false }`
[INFO] [stdout] 6ad2be4003a2ef9d3569d56385887cec140c06c67fe0d5f5aa4f1e675cde66cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+32c26302620b2dbbe0a2291f1969bc0b1622ae59" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c251a770baadf7929ea873de6d499c6aa622c3ae72bb2f5983c3dbf82ca566ec
[INFO] running `Command { std: "docker" "start" "-a" "c251a770baadf7929ea873de6d499c6aa622c3ae72bb2f5983c3dbf82ca566ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling cc v1.0.49
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking pin-project-lite v0.1.2
[INFO] [stderr]    Compiling rug v1.6.0
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking once_cell v1.2.0
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking async-task v1.2.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.2
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling curl-sys v0.4.25
[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-1.0.13/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=591bee6b00a186dd -C extra-filename=-591bee6b00a186dd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7c7b68b511d843f0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5636539e8232fcfc.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1256a373de2a2211.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" "c251a770baadf7929ea873de6d499c6aa622c3ae72bb2f5983c3dbf82ca566ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c251a770baadf7929ea873de6d499c6aa622c3ae72bb2f5983c3dbf82ca566ec", kill_on_drop: false }`
[INFO] [stdout] c251a770baadf7929ea873de6d499c6aa622c3ae72bb2f5983c3dbf82ca566ec