[INFO] fetching crate async-peek 0.3.2...
[INFO] testing async-peek-0.3.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate async-peek 0.3.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate async-peek 0.3.2 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-peek 0.3.2
[INFO] finished tweaking crates.io crate async-peek 0.3.2
[INFO] tweaked toml for crates.io crate async-peek 0.3.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b78985415b2fe8508d09c8728d5b4da8d444b2877f9e781bdbd3c1a16f77d107
[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" "b78985415b2fe8508d09c8728d5b4da8d444b2877f9e781bdbd3c1a16f77d107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b78985415b2fe8508d09c8728d5b4da8d444b2877f9e781bdbd3c1a16f77d107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b78985415b2fe8508d09c8728d5b4da8d444b2877f9e781bdbd3c1a16f77d107", kill_on_drop: false }`
[INFO] [stdout] b78985415b2fe8508d09c8728d5b4da8d444b2877f9e781bdbd3c1a16f77d107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed0a80bc2b471035812fb7f39967eaa06b0f1932266a18d9f6b48d7c4bf2f93a
[INFO] running `Command { std: "docker" "start" "-a" "ed0a80bc2b471035812fb7f39967eaa06b0f1932266a18d9f6b48d7c4bf2f93a", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-micro v0.3.1
[INFO] [stderr]    Compiling ufut v0.3.1
[INFO] [stderr]    Compiling async-peek v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "ed0a80bc2b471035812fb7f39967eaa06b0f1932266a18d9f6b48d7c4bf2f93a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed0a80bc2b471035812fb7f39967eaa06b0f1932266a18d9f6b48d7c4bf2f93a", kill_on_drop: false }`
[INFO] [stdout] ed0a80bc2b471035812fb7f39967eaa06b0f1932266a18d9f6b48d7c4bf2f93a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22fefd633f004e750dc1c400b1c7fc92d56866f1636ee8a82e67fc38129fbbce
[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" "22fefd633f004e750dc1c400b1c7fc92d56866f1636ee8a82e67fc38129fbbce", kill_on_drop: false }`
[INFO] [stderr]    Compiling vec-arena v0.5.2
[INFO] [stderr]    Compiling async-lock v2.3.0
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling polling v0.1.9
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling polling v1.1.0
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-io v0.2.7
[INFO] [stderr]    Compiling async-io v1.1.6
[INFO] [stderr]    Compiling async-executor v0.2.1
[INFO] [stderr]    Compiling blocking v0.6.1
[INFO] [stderr]    Compiling async-fs v1.5.0
[INFO] [stderr]    Compiling async-net v1.5.0
[INFO] [stderr]    Compiling async-process v0.1.3
[INFO] [stderr]    Compiling smol v0.4.3
[INFO] [stderr]    Compiling async-peek v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.77s
[INFO] running `Command { std: "docker" "inspect" "22fefd633f004e750dc1c400b1c7fc92d56866f1636ee8a82e67fc38129fbbce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22fefd633f004e750dc1c400b1c7fc92d56866f1636ee8a82e67fc38129fbbce", kill_on_drop: false }`
[INFO] [stdout] 22fefd633f004e750dc1c400b1c7fc92d56866f1636ee8a82e67fc38129fbbce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 12da4162643ca1206e02386d8218db6273d5a1d14085a4516a471f671506a60f
[INFO] running `Command { std: "docker" "start" "-a" "12da4162643ca1206e02386d8218db6273d5a1d14085a4516a471f671506a60f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async_peek-d6285329cbad6a1e
[INFO] [stderr]    Doc-tests async-peek
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - AsyncPeekExt::peek (line 55) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "12da4162643ca1206e02386d8218db6273d5a1d14085a4516a471f671506a60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12da4162643ca1206e02386d8218db6273d5a1d14085a4516a471f671506a60f", kill_on_drop: false }`
[INFO] [stdout] 12da4162643ca1206e02386d8218db6273d5a1d14085a4516a471f671506a60f