[INFO] fetching crate yamux 0.8.1...
[INFO] testing yamux-0.8.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate yamux 0.8.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yamux 0.8.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yamux 0.8.1
[INFO] finished tweaking crates.io crate yamux 0.8.1
[INFO] tweaked toml for crates.io crate yamux 0.8.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a32a5dbd2a5f7998a528385ef3e77f53bacdec68dd389d7cfd89b82fc8ddba1d
[INFO] running `Command { std: "docker" "start" "-a" "a32a5dbd2a5f7998a528385ef3e77f53bacdec68dd389d7cfd89b82fc8ddba1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a32a5dbd2a5f7998a528385ef3e77f53bacdec68dd389d7cfd89b82fc8ddba1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a32a5dbd2a5f7998a528385ef3e77f53bacdec68dd389d7cfd89b82fc8ddba1d", kill_on_drop: false }`
[INFO] [stdout] a32a5dbd2a5f7998a528385ef3e77f53bacdec68dd389d7cfd89b82fc8ddba1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fe1cbbbbfb4f3739cb789050c282555010d7d1cea7fb09965b88d66d546d6cf
[INFO] running `Command { std: "docker" "start" "-a" "4fe1cbbbbfb4f3739cb789050c282555010d7d1cea7fb09965b88d66d546d6cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling yamux v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.60s
[INFO] running `Command { std: "docker" "inspect" "4fe1cbbbbfb4f3739cb789050c282555010d7d1cea7fb09965b88d66d546d6cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe1cbbbbfb4f3739cb789050c282555010d7d1cea7fb09965b88d66d546d6cf", kill_on_drop: false }`
[INFO] [stdout] 4fe1cbbbbfb4f3739cb789050c282555010d7d1cea7fb09965b88d66d546d6cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f98375e88deddcbdba86cbc2edf28ef51c63a0803ba5bcfb1c477a4cc7328221
[INFO] running `Command { std: "docker" "start" "-a" "f98375e88deddcbdba86cbc2edf28ef51c63a0803ba5bcfb1c477a4cc7328221", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling yamux v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 24.94s
[INFO] running `Command { std: "docker" "inspect" "f98375e88deddcbdba86cbc2edf28ef51c63a0803ba5bcfb1c477a4cc7328221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f98375e88deddcbdba86cbc2edf28ef51c63a0803ba5bcfb1c477a4cc7328221", kill_on_drop: false }`
[INFO] [stdout] f98375e88deddcbdba86cbc2edf28ef51c63a0803ba5bcfb1c477a4cc7328221
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3df1e39931c47925ad31b1cc4abe2a1400815de203002540268a4e538485ae1d
[INFO] running `Command { std: "docker" "start" "-a" "3df1e39931c47925ad31b1cc4abe2a1400815de203002540268a4e538485ae1d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yamux-c4d7b9d82ae71f55)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test pause::tests::pause_unpause ... ok
[INFO] [stdout] test frame::header::tests::encode_decode_identity ... ok
[INFO] [stdout] test tests::prop_max_streams ... ok
[INFO] [stdout] test tests::prop_send_recv_half_closed ... ok
[INFO] [stdout] test tests::prop_send_recv ... ok
[INFO] [stdout] test frame::io::tests::encode_decode_identity ... ok
[INFO] [stdout] test tests::prop_config_send_recv_single ... ok
[INFO] [stdout] test tests::prop_config_send_recv_multi ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 20.36s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/concurrent.rs (/opt/rustwide/target/debug/deps/concurrent-5e0b30f4d47ba488)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test concurrent_streams ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yamux
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3df1e39931c47925ad31b1cc4abe2a1400815de203002540268a4e538485ae1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df1e39931c47925ad31b1cc4abe2a1400815de203002540268a4e538485ae1d", kill_on_drop: false }`
[INFO] [stdout] 3df1e39931c47925ad31b1cc4abe2a1400815de203002540268a4e538485ae1d