[INFO] fetching crate my-iot 0.94.11...
[INFO] checking my-iot-0.94.11 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate my-iot 0.94.11 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate my-iot 0.94.11 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate my-iot 0.94.11
[INFO] finished tweaking crates.io crate my-iot 0.94.11
[INFO] tweaked toml for crates.io crate my-iot 0.94.11 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate my-iot 0.94.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vec-arena v0.5.2
[INFO] [stderr]   Downloaded atoi v0.3.2
[INFO] [stderr]   Downloaded statrs v0.13.0
[INFO] [stderr]   Downloaded sqlformat v0.1.1
[INFO] [stderr]   Downloaded sqlx-core v0.4.0-beta.1
[INFO] [stderr]   Downloaded seahash v4.0.1
[INFO] [stderr]   Downloaded devise v0.2.0
[INFO] [stderr]   Downloaded async-stream v0.2.1
[INFO] [stderr]   Downloaded hyper-rustls v0.21.0
[INFO] [stderr]   Downloaded askama_escape v0.10.1
[INFO] [stderr]   Downloaded tokio-rustls v0.14.1
[INFO] [stderr]   Downloaded askama v0.10.3
[INFO] [stderr]   Downloaded rhai v0.18.3
[INFO] [stderr]   Downloaded askama_derive v0.10.3
[INFO] [stderr]   Downloaded mdns v1.1.0
[INFO] [stderr]   Downloaded devise_core v0.2.0
[INFO] [stderr]   Downloaded pear_codegen v0.1.4
[INFO] [stderr]   Downloaded rocket v0.4.5
[INFO] [stderr]   Downloaded sqlx-macros v0.4.0-beta.1
[INFO] [stderr]   Downloaded sqlx-rt v0.1.1
[INFO] [stderr]   Downloaded sqlx v0.4.0-beta.1
[INFO] [stderr]   Downloaded devise_codegen v0.2.0
[INFO] [stderr]   Downloaded serde_regex v1.1.0
[INFO] [stderr]   Downloaded rocket_http v0.4.5
[INFO] [stderr]   Downloaded cookie v0.11.3
[INFO] [stderr]   Downloaded pear v0.1.4
[INFO] [stderr]   Downloaded spa v0.2.0
[INFO] [stderr]   Downloaded rocket_contrib v0.4.5
[INFO] [stderr]   Downloaded rocket_codegen v0.4.5
[INFO] [stderr]   Downloaded polling v0.1.9
[INFO] [stderr]   Downloaded async-stream-impl v0.2.1
[INFO] [stderr]   Downloaded rustls v0.18.1
[INFO] [stderr]   Downloaded askama_shared v0.10.4
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] c7f81a461379ceb67c47db1f2d7d97a389b46157d9e32e730b476cc219b439ad
[INFO] running `Command { std: "docker" "start" "-a" "c7f81a461379ceb67c47db1f2d7d97a389b46157d9e32e730b476cc219b439ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7f81a461379ceb67c47db1f2d7d97a389b46157d9e32e730b476cc219b439ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7f81a461379ceb67c47db1f2d7d97a389b46157d9e32e730b476cc219b439ad", kill_on_drop: false }`
[INFO] [stdout] c7f81a461379ceb67c47db1f2d7d97a389b46157d9e32e730b476cc219b439ad
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59100f5b161de6a49ef9dd8e0b59ef8b74490e49d7bf43fb964892bdf8908b88
[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" "59100f5b161de6a49ef9dd8e0b59ef8b74490e49d7bf43fb964892bdf8908b88", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.68
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.68
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling fastrand v1.3.5
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.7
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling event-listener v2.4.0
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling vec-arena v0.5.2
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling parking v1.0.6
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling send_wrapper v0.4.0
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling whoami v0.9.0
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling askama_escape v0.10.1
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking seahash v4.0.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.5
[INFO] [stderr]    Compiling rocket v0.4.5
[INFO] [stderr]    Compiling async-mutex v1.3.0
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking proc-macro2 v1.0.21
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking polling v0.1.9
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking cookie v0.11.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking atoi v0.3.2
[INFO] [stderr]     Checking rhai v0.18.3
[INFO] [stderr]     Checking sqlformat v0.1.1
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]     Checking async-compression v0.3.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking alga v0.9.3
[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-1.0.40/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=3de45ef66a41b449 -C extra-filename=-3de45ef66a41b449 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-108f3aee7922c57f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c06e2dfd553b1a2c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b13daac5d45350a3.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" "59100f5b161de6a49ef9dd8e0b59ef8b74490e49d7bf43fb964892bdf8908b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59100f5b161de6a49ef9dd8e0b59ef8b74490e49d7bf43fb964892bdf8908b88", kill_on_drop: false }`
[INFO] [stdout] 59100f5b161de6a49ef9dd8e0b59ef8b74490e49d7bf43fb964892bdf8908b88