[INFO] fetching crate ads1x15 0.5.0...
[INFO] checking ads1x15-0.5.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate ads1x15 0.5.0 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate ads1x15 0.5.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-88/source/rust-toolchain
[INFO] started tweaking crates.io crate ads1x15 0.5.0
[INFO] finished tweaking crates.io crate ads1x15 0.5.0
[INFO] tweaked toml for crates.io crate ads1x15 0.5.0 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 qutex v0.2.3
[INFO] [stderr]   Downloaded bitfield-register-macro v0.2.1
[INFO] [stderr]   Downloaded bitfield-register v0.2.1
[INFO] [stderr]   Downloaded futures-await-await-macro v0.1.1
[INFO] [stderr]   Downloaded futures-await v0.1.1
[INFO] [stderr]   Downloaded futures-await-async-macro v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3632b7cd5700f63d3bd13842f7f52c3510fd107a6577feabbdf8ab11a14cb18
[INFO] running `Command { std: "docker" "start" "-a" "b3632b7cd5700f63d3bd13842f7f52c3510fd107a6577feabbdf8ab11a14cb18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3632b7cd5700f63d3bd13842f7f52c3510fd107a6577feabbdf8ab11a14cb18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3632b7cd5700f63d3bd13842f7f52c3510fd107a6577feabbdf8ab11a14cb18", kill_on_drop: false }`
[INFO] [stdout] b3632b7cd5700f63d3bd13842f7f52c3510fd107a6577feabbdf8ab11a14cb18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04814868f35b2536b7021b6505dc5ada30d2aa9aa8db144c32ecabb0a5e3569f
[INFO] running `Command { std: "docker" "start" "-a" "04814868f35b2536b7021b6505dc5ada30d2aa9aa8db144c32ecabb0a5e3569f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking futures-await-await-macro v0.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking object v0.26.2
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling bitfield-register-macro v0.2.1
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stdout] error[E0774]: `derive` may only be applied to `struct`s, `enum`s and `union`s
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bitfield-register-macro-0.2.1/src/lib.rs:337:5
[INFO] [stdout]     |
[INFO] [stdout] 337 |     #[derive(Debug)]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ not applicable here
[INFO] [stdout] 338 |     let mut bitfields: Vec<BitField> = vec![];
[INFO] [stdout]     |     ------------------------------------------ not a `struct`, `enum` or `union`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bitfield-register-macro-0.2.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0774.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitfield-register-macro` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "04814868f35b2536b7021b6505dc5ada30d2aa9aa8db144c32ecabb0a5e3569f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04814868f35b2536b7021b6505dc5ada30d2aa9aa8db144c32ecabb0a5e3569f", kill_on_drop: false }`
[INFO] [stdout] 04814868f35b2536b7021b6505dc5ada30d2aa9aa8db144c32ecabb0a5e3569f
