[INFO] fetching crate yamux 0.8.0...
[INFO] checking yamux-0.8.0 against beta for pr-78714
[INFO] extracting crate yamux 0.8.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate yamux 0.8.0 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 crates.io crate yamux 0.8.0
[INFO] finished tweaking crates.io crate yamux 0.8.0
[INFO] tweaked toml for crates.io crate yamux 0.8.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aecb898f1662ef6d0afd6436e8dd66b2f2f26d03a26f3290ac11d99d4831364e
[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" "aecb898f1662ef6d0afd6436e8dd66b2f2f26d03a26f3290ac11d99d4831364e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aecb898f1662ef6d0afd6436e8dd66b2f2f26d03a26f3290ac11d99d4831364e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aecb898f1662ef6d0afd6436e8dd66b2f2f26d03a26f3290ac11d99d4831364e", kill_on_drop: false }`
[INFO] [stdout] aecb898f1662ef6d0afd6436e8dd66b2f2f26d03a26f3290ac11d99d4831364e
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ff35927fb73f0522d31fa07f7b4e8df5bded4b958e55054510c042e6f4f2e7a
[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" "0ff35927fb73f0522d31fa07f7b4e8df5bded4b958e55054510c042e6f4f2e7a", kill_on_drop: false }`
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking yamux v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.93s
[INFO] running `Command { std: "docker" "inspect" "0ff35927fb73f0522d31fa07f7b4e8df5bded4b958e55054510c042e6f4f2e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff35927fb73f0522d31fa07f7b4e8df5bded4b958e55054510c042e6f4f2e7a", kill_on_drop: false }`
[INFO] [stdout] 0ff35927fb73f0522d31fa07f7b4e8df5bded4b958e55054510c042e6f4f2e7a