[INFO] cloning repository https://github.com/black-binary/async-smux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/black-binary/async-smux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblack-binary%2Fasync-smux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblack-binary%2Fasync-smux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf4a14c19263cda719bcb7d4117841dbc5f82371
[INFO] checking black-binary/async-smux against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblack-binary%2Fasync-smux" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/black-binary/async-smux on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/black-binary/async-smux
[INFO] finished tweaking git repo https://github.com/black-binary/async-smux
[INFO] tweaked toml for git repo https://github.com/black-binary/async-smux written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/black-binary/async-smux already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 149656a7fead778a63c051e7e588d50d4bee84060ec759bba5e2aceda722cccf
[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" "149656a7fead778a63c051e7e588d50d4bee84060ec759bba5e2aceda722cccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "149656a7fead778a63c051e7e588d50d4bee84060ec759bba5e2aceda722cccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149656a7fead778a63c051e7e588d50d4bee84060ec759bba5e2aceda722cccf", kill_on_drop: false }`
[INFO] [stdout] 149656a7fead778a63c051e7e588d50d4bee84060ec759bba5e2aceda722cccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a598b1079fc634539c17f43c8113d6bf02ba77d11a5d7ff8f08bff991a03f63e
[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" "a598b1079fc634539c17f43c8113d6bf02ba77d11a5d7ff8f08bff991a03f63e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking futures-sink v0.3.6
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling pprof v0.3.18
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling cpp_demangle v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking futures-lite v1.11.1
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]    Compiling symbolic-demangle v7.5.0
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking crossbeam-utils v0.8.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]     Checking polling v2.0.1
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking async-io v1.1.10
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking const-random v0.1.11
[INFO] [stderr]     Checking ahash v0.4.6
[INFO] [stderr]     Checking async-process v1.0.1
[INFO] [stderr]     Checking async-global-executor v1.3.0
[INFO] [stderr]     Checking async-net v1.4.7
[INFO] [stderr]     Checking async-std v1.6.5
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking inferno v0.10.1
[INFO] [stderr]     Checking smol v1.2.4
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symbolic-common v7.5.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking async_smux v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 07s
[INFO] running `Command { std: "docker" "inspect" "a598b1079fc634539c17f43c8113d6bf02ba77d11a5d7ff8f08bff991a03f63e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a598b1079fc634539c17f43c8113d6bf02ba77d11a5d7ff8f08bff991a03f63e", kill_on_drop: false }`
[INFO] [stdout] a598b1079fc634539c17f43c8113d6bf02ba77d11a5d7ff8f08bff991a03f63e