[INFO] cloning repository https://github.com/lambdabear/mqtt-sub-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lambdabear/mqtt-sub-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdabear%2Fmqtt-sub-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdabear%2Fmqtt-sub-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f91506c4884dcef820ea88c24420cf477fdc67e5
[INFO] checking lambdabear/mqtt-sub-client against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdabear%2Fmqtt-sub-client" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lambdabear/mqtt-sub-client on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lambdabear/mqtt-sub-client
[INFO] finished tweaking git repo https://github.com/lambdabear/mqtt-sub-client
[INFO] tweaked toml for git repo https://github.com/lambdabear/mqtt-sub-client written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/lambdabear/mqtt-sub-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8aab494c729bfa4e959deddde23911726c936b14ceb8e2e3627809d8404d0743
[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" "8aab494c729bfa4e959deddde23911726c936b14ceb8e2e3627809d8404d0743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aab494c729bfa4e959deddde23911726c936b14ceb8e2e3627809d8404d0743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aab494c729bfa4e959deddde23911726c936b14ceb8e2e3627809d8404d0743", kill_on_drop: false }`
[INFO] [stdout] 8aab494c729bfa4e959deddde23911726c936b14ceb8e2e3627809d8404d0743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2feea07b55a7e6a0dc84ed2ef2371af0bca495a0bd59ce74ac8c25f5c86c20f7
[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" "2feea07b55a7e6a0dc84ed2ef2371af0bca495a0bd59ce74ac8c25f5c86c20f7", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking untrusted v0.6.2
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking tokio-sync v0.1.4
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.13.5/build.rs:432:20
[INFO] [stdout]     |
[INFO] [stdout] 432 |         .for_each(|&(lib_name, srcs, additional_srcs)| {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
[INFO] [stdout]     |                    |                                |
[INFO] [stdout]     |                    |                                expected due to this
[INFO] [stdout]     |                    expected tuple, found reference
[INFO] [stdout]     |
[INFO] [stdout]     = note:  expected tuple `(&str, &[PathBuf], &[PathBuf])`
[INFO] [stdout]             found reference `&_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ring`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2feea07b55a7e6a0dc84ed2ef2371af0bca495a0bd59ce74ac8c25f5c86c20f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2feea07b55a7e6a0dc84ed2ef2371af0bca495a0bd59ce74ac8c25f5c86c20f7", kill_on_drop: false }`
[INFO] [stdout] 2feea07b55a7e6a0dc84ed2ef2371af0bca495a0bd59ce74ac8c25f5c86c20f7