[INFO] fetching crate refinery_cli 0.6.0...
[INFO] checking refinery_cli-0.6.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate refinery_cli 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate refinery_cli 0.6.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate refinery_cli 0.6.0
[INFO] finished tweaking crates.io crate refinery_cli 0.6.0
[INFO] tweaked toml for crates.io crate refinery_cli 0.6.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate refinery_cli 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 29403cdb668a87f0039f61fecca1f5eb96bd9b9bcaa28570337dc772842f5804
[INFO] running `Command { std: "docker" "start" "-a" "29403cdb668a87f0039f61fecca1f5eb96bd9b9bcaa28570337dc772842f5804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29403cdb668a87f0039f61fecca1f5eb96bd9b9bcaa28570337dc772842f5804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29403cdb668a87f0039f61fecca1f5eb96bd9b9bcaa28570337dc772842f5804", kill_on_drop: false }`
[INFO] [stdout] 29403cdb668a87f0039f61fecca1f5eb96bd9b9bcaa28570337dc772842f5804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13f831ca8014f01f21b22eeeb5c085657b9128ecac8aaf29c14b05e6f367234f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13f831ca8014f01f21b22eeeb5c085657b9128ecac8aaf29c14b05e6f367234f", 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]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling frunk_core v0.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling mysql v21.0.0
[INFO] [stderr]     Checking saturating v0.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling io-enum v1.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking wyz v0.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking lru v0.6.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking bitvec v0.22.3
[INFO] [stderr]     Checking predicates v2.0.0
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.21.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling subprocess v0.2.7
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking assert_cmd v1.0.7
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking lexical v5.2.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]     Checking os_type v2.3.0
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking rand v0.8.4
[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-1.0.73/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=7f3f734adea0dcb3 -C extra-filename=-7f3f734adea0dcb3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4fc7cd6531551569.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-222a78d45ac6a98c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-38987aa89d2b0d41.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: build failed
[INFO] running `Command { std: "docker" "inspect" "13f831ca8014f01f21b22eeeb5c085657b9128ecac8aaf29c14b05e6f367234f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13f831ca8014f01f21b22eeeb5c085657b9128ecac8aaf29c14b05e6f367234f", kill_on_drop: false }`
[INFO] [stdout] 13f831ca8014f01f21b22eeeb5c085657b9128ecac8aaf29c14b05e6f367234f