[INFO] cloning repository https://github.com/nemosupremo/mkii
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nemosupremo/mkii" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnemosupremo%2Fmkii", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnemosupremo%2Fmkii'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7781b2254ce65ea5779f74560bf7fae2424003c
[INFO] checking nemosupremo/mkii against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnemosupremo%2Fmkii" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nemosupremo/mkii 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/nemosupremo/mkii
[INFO] finished tweaking git repo https://github.com/nemosupremo/mkii
[INFO] tweaked toml for git repo https://github.com/nemosupremo/mkii written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nemosupremo/mkii 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]     Updating git repository `http://github.com/sfackler/rust-phf`
[INFO] [stderr]     Updating git repository `https://github.com/nemosupremo/tokio-io-pool`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded cc v1.0.24
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.9
[INFO] [stderr]   Downloaded error-chain v0.5.0
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded mio-uds v0.6.6
[INFO] [stderr]   Downloaded tokio-macros v0.2.0-alpha.4
[INFO] [stderr]   Downloaded rand_pcg v0.2.0
[INFO] [stderr]   Downloaded tokio-fs v0.2.0-alpha.4
[INFO] [stderr]   Downloaded cpuprofiler v0.0.3
[INFO] [stderr]   Downloaded tokio-net v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tokio-io v0.2.0-alpha.4
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded mio v0.6.15
[INFO] [stderr]   Downloaded tokio-codec v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tokio v0.2.0-alpha.4
[INFO] [stderr]   Downloaded bytes v0.4.9
[INFO] [stderr]   Downloaded tracing-core v0.1.5
[INFO] [stderr]   Downloaded tracing-attributes v0.1.2
[INFO] [stderr]   Downloaded byteorder v1.2.6
[INFO] [stderr]   Downloaded tokio-timer v0.3.0-alpha.4
[INFO] [stderr]   Downloaded tokio-sync v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tracing v0.1.8
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]   Downloaded siphasher v0.3.0
[INFO] [stderr]   Downloaded core_affinity v0.5.9
[INFO] [stderr]   Downloaded tokio-executor v0.2.0-alpha.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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ce5d20bfb8b076d8187f84bf507dd055d4b4b3719717756b2612133c44c942b
[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" "8ce5d20bfb8b076d8187f84bf507dd055d4b4b3719717756b2612133c44c942b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ce5d20bfb8b076d8187f84bf507dd055d4b4b3719717756b2612133c44c942b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce5d20bfb8b076d8187f84bf507dd055d4b4b3719717756b2612133c44c942b", kill_on_drop: false }`
[INFO] [stdout] 8ce5d20bfb8b076d8187f84bf507dd055d4b4b3719717756b2612133c44c942b
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01e6f3f64aa1464d69922bcf6eb80a1e6ad6df2b47567fa79da3cc294c4144af
[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" "01e6f3f64aa1464d69922bcf6eb80a1e6ad6df2b47567fa79da3cc294c4144af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling siphasher v0.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking seahash v3.0.5
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling phf_shared v0.7.24 (http://github.com/sfackler/rust-phf?rev=0d00821785#0d008217)
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking core_affinity v0.5.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]     Checking error-chain v0.5.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.4
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking cpuprofiler v0.0.3
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.4
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling phf_generator v0.7.24 (http://github.com/sfackler/rust-phf?rev=0d00821785#0d008217)
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.4
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.9
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.4
[INFO] [stderr]    Compiling phf_macros v0.7.24 (http://github.com/sfackler/rust-phf?rev=0d00821785#0d008217)
[INFO] [stderr]     Checking tracing v0.1.8
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.4
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.4
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.4
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.4
[INFO] [stderr]     Checking phf v0.7.24 (http://github.com/sfackler/rust-phf?rev=0d00821785#0d008217)
[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-0.2.0-alpha.4/src/read_dir.rs:237:6
[INFO] [stdout]     |
[INFO] [stdout] 237 | 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" "01e6f3f64aa1464d69922bcf6eb80a1e6ad6df2b47567fa79da3cc294c4144af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e6f3f64aa1464d69922bcf6eb80a1e6ad6df2b47567fa79da3cc294c4144af", kill_on_drop: false }`
[INFO] [stdout] 01e6f3f64aa1464d69922bcf6eb80a1e6ad6df2b47567fa79da3cc294c4144af