[INFO] fetching crate my-iot 0.96.11...
[INFO] testing my-iot-0.96.11 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate my-iot 0.96.11 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate my-iot 0.96.11 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate my-iot 0.96.11
[INFO] finished tweaking crates.io crate my-iot 0.96.11
[INFO] tweaked toml for crates.io crate my-iot 0.96.11 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate my-iot 0.96.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49f91972477e32010c6a82b1501309c2c428bed30220b5012d4654ebacc8c555
[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" "49f91972477e32010c6a82b1501309c2c428bed30220b5012d4654ebacc8c555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49f91972477e32010c6a82b1501309c2c428bed30220b5012d4654ebacc8c555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f91972477e32010c6a82b1501309c2c428bed30220b5012d4654ebacc8c555", kill_on_drop: false }`
[INFO] [stdout] 49f91972477e32010c6a82b1501309c2c428bed30220b5012d4654ebacc8c555
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54b990497c90ee67bff67a250e7279709c521cc53339bb83b66d54aad0550fa3
[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" "54b990497c90ee67bff67a250e7279709c521cc53339bb83b66d54aad0550fa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling subtle v2.3.0
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[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling tap v1.0.0
[INFO] [stderr]    Compiling funty v1.0.1
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.3.0
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[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling curl v0.4.34
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[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling tower-service v0.3.0
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[INFO] [stderr]    Compiling rawpointer v0.2.1
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[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling hex v0.4.2
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[INFO] [stderr]    Compiling whoami v0.9.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling deunicode v0.4.3
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling seahash v4.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling openssl-src v111.12.0+1.1.1h
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling ring v0.16.16
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-complex v0.2.4
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[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
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[INFO] [stderr]    Compiling libsqlite3-sys v0.20.1
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[INFO] [stderr]    Compiling futures-channel v0.3.8
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[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
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[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.13
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[INFO] [stderr]    Compiling nom v6.0.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]    Compiling rocket_codegen v0.4.6
[INFO] [stderr]    Compiling rocket v0.4.6
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling slug v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling sluice v0.5.3
[INFO] [stderr]    Compiling spinning_top v0.2.2
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling inotify-sys v0.1.4
[INFO] [stderr]    Compiling uname v0.1.1
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling dns-parser v0.8.0
[INFO] [stderr]    Compiling flume v0.9.2
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling sentry-contexts v0.20.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling bitvec v0.19.4
[INFO] [stderr]    Compiling cookie v0.11.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling ahash v0.5.7
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling async-io v1.2.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling crypto-mac v0.10.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling atoi v0.3.3
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling rhai v0.18.3
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling sized-chunks v0.6.2
[INFO] [stderr]    Compiling aes-soft v0.6.4
[INFO] [stderr]    Compiling ctr v0.6.0
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling polyval v0.4.1
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling webpki-roots v0.20.0
[INFO] [stderr]    Compiling hkdf v0.10.0
[INFO] [stderr]    Compiling ghash v0.3.0
[INFO] [stderr]    Compiling aes v0.6.0
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling aes-gcm v0.8.0
[INFO] [stderr]    Compiling sqlformat v0.1.5
[INFO] [stderr]    Compiling nalgebra v0.19.0
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling devise_core v0.2.0
[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-1.0.50/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"' --cfg 'feature="visit-mut"' -C metadata=d31c0343577b50b7 -C extra-filename=-d31c0343577b50b7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8a8bb825df9136cb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-944c052ceb08ffd8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-083414e3434d8e82.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" "54b990497c90ee67bff67a250e7279709c521cc53339bb83b66d54aad0550fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b990497c90ee67bff67a250e7279709c521cc53339bb83b66d54aad0550fa3", kill_on_drop: false }`
[INFO] [stdout] 54b990497c90ee67bff67a250e7279709c521cc53339bb83b66d54aad0550fa3