[INFO] cloning repository https://github.com/metsawyr/basic-multisig
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/metsawyr/basic-multisig" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmetsawyr%2Fbasic-multisig", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmetsawyr%2Fbasic-multisig'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bbfcaba4ca6e99076a7c38155407a9176b6870ce
[INFO] checking metsawyr/basic-multisig against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmetsawyr%2Fbasic-multisig" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/metsawyr/basic-multisig on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/metsawyr/basic-multisig
[INFO] finished tweaking git repo https://github.com/metsawyr/basic-multisig
[INFO] tweaked toml for git repo https://github.com/metsawyr/basic-multisig written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/metsawyr/basic-multisig already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chacha20-poly1305-aead v0.1.2
[INFO] [stderr]   Downloaded exonum_rocksdb v0.7.4
[INFO] [stderr]   Downloaded zip v0.4.2
[INFO] [stderr]   Downloaded ctrlc v3.1.1
[INFO] [stderr]   Downloaded clear_on_drop v0.2.3
[INFO] [stderr]   Downloaded exonum_librocksdb-sys v0.5.4
[INFO] [stderr]   Downloaded x25519-dalek v0.4.5
[INFO] [stderr]   Downloaded protoc v2.3.0
[INFO] [stderr]   Downloaded exonum-build v0.10.0
[INFO] [stderr]   Downloaded exonum-crypto v0.10.4
[INFO] [stderr]   Downloaded pwbox v0.1.2
[INFO] [stderr]   Downloaded snow v0.4.2
[INFO] [stderr]   Downloaded exonum v0.10.3
[INFO] [stderr]   Downloaded rust_decimal v0.10.2
[INFO] [stderr]   Downloaded protobuf v2.3.0
[INFO] [stderr]   Downloaded protoc-rust v2.3.0
[INFO] [stderr]   Downloaded tokio-retry v0.2.0
[INFO] [stderr]   Downloaded exonum_libsodium-sys v0.0.20
[INFO] [stderr]   Downloaded static_slice v0.0.3
[INFO] [stderr]   Downloaded subtle v2.0.0
[INFO] [stderr]   Downloaded tokio-dns-unofficial v0.4.0
[INFO] [stderr]   Downloaded hex-buffer-serde v0.1.1
[INFO] [stderr]   Downloaded exonum-derive v0.10.0
[INFO] [stderr]   Downloaded protobuf-codegen v2.3.0
[INFO] [stderr]   Downloaded erased-serde v0.3.8
[INFO] [stderr]   Downloaded os_info v1.1.0
[INFO] [stderr]   Downloaded curve25519-dalek v1.0.3
[INFO] [stderr]   Downloaded exonum_sodiumoxide v0.0.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a026a9be25010a974631bf8535233289b0bad966adece2af697d322d21f5b6d5
[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" "a026a9be25010a974631bf8535233289b0bad966adece2af697d322d21f5b6d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a026a9be25010a974631bf8535233289b0bad966adece2af697d322d21f5b6d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a026a9be25010a974631bf8535233289b0bad966adece2af697d322d21f5b6d5", kill_on_drop: false }`
[INFO] [stdout] a026a9be25010a974631bf8535233289b0bad966adece2af697d322d21f5b6d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23ebe7f678e94ead25602ffe7075ec44181ebe8ebfb47ea2d21c6ad69eee81a2
[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" "23ebe7f678e94ead25602ffe7075ec44181ebe8ebfb47ea2d21c6ad69eee81a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]     Checking cfg-if v0.1.6
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[INFO] [stderr]    Compiling proc-macro2 v0.4.27
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[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.1
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[INFO] [stderr]     Checking stable_deref_trait v1.1.1
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[INFO] [stderr]    Compiling num-traits v0.2.6
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[INFO] [stderr]    Compiling protobuf v2.3.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
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[INFO] [stderr]    Compiling num-bigint v0.2.2
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[INFO] [stderr]    Compiling make-cmd v0.1.0
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[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling miniz_oxide v0.2.1
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking chacha20-poly1305-aead v0.1.2
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
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[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking smallvec v0.6.8
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[INFO] [stderr]     Checking tokio-sync v0.1.1
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[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
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[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling filetime v0.2.4
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.6
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[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking signal-hook v0.1.7
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling snow v0.4.2
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling tar v0.4.20
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling nom v4.2.0
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[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking tokio-retry v0.2.0
[INFO] [stderr]     Checking tokio-io v0.1.11
[INFO] [stderr]     Checking http v0.1.15
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking rust_decimal v0.10.2
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking erased-serde v0.3.8
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling tempfile v3.0.6
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking ctrlc v3.1.1
[INFO] [stderr]     Checking h2 v0.1.16
[INFO] [stderr]     Checking tokio-reactor v0.1.8
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.11
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio-fs v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling exonum_librocksdb-sys v0.5.4
[INFO] [stdout] error[E0277]: the trait bound `read_dir::DirEntry: std::sealed::Sealed` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-fs-0.1.5/src/read_dir.rs:243:6
[INFO] [stdout]     |
[INFO] [stdout] 243 | impl DirEntryExt for DirEntry {
[INFO] [stdout]     |      ^^^^^^^^^^^ the trait `std::sealed::Sealed` is not implemented for `read_dir::DirEntry`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-fs`
[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" "23ebe7f678e94ead25602ffe7075ec44181ebe8ebfb47ea2d21c6ad69eee81a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ebe7f678e94ead25602ffe7075ec44181ebe8ebfb47ea2d21c6ad69eee81a2", kill_on_drop: false }`
[INFO] [stdout] 23ebe7f678e94ead25602ffe7075ec44181ebe8ebfb47ea2d21c6ad69eee81a2