[INFO] cloning repository https://github.com/mobilecoinofficial/mobilecoin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mobilecoinofficial/mobilecoin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobilecoinofficial%2Fmobilecoin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobilecoinofficial%2Fmobilecoin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7e3de17794de6c2ec89c1981ed72c602a890a2e
[INFO] documenting mobilecoinofficial/mobilecoin against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobilecoinofficial%2Fmobilecoin" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mobilecoinofficial/mobilecoin on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/.cargo/config
[INFO] removed /workspace/builds/worker-8/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mobilecoinofficial/mobilecoin
[INFO] finished tweaking git repo https://github.com/mobilecoinofficial/mobilecoin
[INFO] tweaked toml for git repo https://github.com/mobilecoinofficial/mobilecoin written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mobilecoinofficial/mobilecoin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/eranrund/bulletproofs`
[INFO] [stderr]     Updating git repository `https://github.com/cormacrelf/datatest.git`
[INFO] [stderr]     Updating git repository `https://github.com/eranrund/ed25519-dalek.git`
[INFO] [stderr]     Updating git repository `https://github.com/mobilecoinofficial/grpc-rs`
[INFO] [stderr]     Updating git submodule `https://github.com/pingcap/grpc.git`
[INFO] [stderr]     Updating git submodule `https://github.com/abseil/abseil-cpp.git`
[INFO] [stderr]     Updating git submodule `https://github.com/google/benchmark`
[INFO] [stderr]     Updating git submodule `https://github.com/google/bloaty.git`
[INFO] [stderr]     Updating git submodule `https://github.com/google/googletest.git`
[INFO] [stderr]     Updating git submodule `https://chromium.googlesource.com/chromium/llvm-project/llvm/lib/Fuzzer`
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[INFO] [stderr]     Updating git submodule `https://github.com/google/protobuf.git`
[INFO] [stderr]     Updating git submodule `https://github.com/google/benchmark.git`
[INFO] [stderr]     Updating git submodule `https://github.com/google/googletest.git`
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[INFO] [stderr]     Updating git submodule `https://github.com/google/re2.git`
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[INFO] [stderr]     Updating git submodule `https://github.com/madler/zlib`
[INFO] [stderr]     Updating git repository `https://github.com/mozilla/lmdb-rs`
[INFO] [stderr]     Updating git submodule `https://github.com/mozilla/lmdb`
[INFO] [stderr]     Updating git repository `https://github.com/mobilecoinofficial/rust-mbedtls.git`
[INFO] [stderr]     Updating git repository `https://github.com/mobilecoinofficial/protoc-grpcio`
[INFO] [stderr]     Updating git repository `https://github.com/mobilecoinofficial/schnorrkel`
[INFO] [stderr]     Updating git repository `https://github.com/mobilecoinofficial/cbor`
[INFO] [stderr]     Updating git repository `https://github.com/eranrund/x25519-dalek.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oorandom v11.1.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5579de11be84a62c9ad076538188a9c078c1359c580ab6a14a6d7e783394f976
[INFO] running `Command { std: "docker" "start" "-a" "5579de11be84a62c9ad076538188a9c078c1359c580ab6a14a6d7e783394f976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5579de11be84a62c9ad076538188a9c078c1359c580ab6a14a6d7e783394f976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5579de11be84a62c9ad076538188a9c078c1359c580ab6a14a6d7e783394f976", kill_on_drop: false }`
[INFO] [stdout] 5579de11be84a62c9ad076538188a9c078c1359c580ab6a14a6d7e783394f976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8c9f69e8abea4071d093aba733213304649919d77b172bfb192a5d9bdf21e1e
[INFO] running `Command { std: "docker" "start" "-a" "a8c9f69e8abea4071d093aba733213304649919d77b172bfb192a5d9bdf21e1e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling anyhow v1.0.39
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/subtle-2.2.3/src/lib.rs:12:42
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![cfg_attr(feature = "nightly", feature(external_doc))]
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/subtle-2.2.3/src/lib.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![cfg_attr(feature = "nightly", feature(external_doc))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `subtle` due to 3 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a8c9f69e8abea4071d093aba733213304649919d77b172bfb192a5d9bdf21e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8c9f69e8abea4071d093aba733213304649919d77b172bfb192a5d9bdf21e1e", kill_on_drop: false }`
[INFO] [stdout] a8c9f69e8abea4071d093aba733213304649919d77b172bfb192a5d9bdf21e1e
