[INFO] fetching crate async-oneshot 0.5.0...
[INFO] testing async-oneshot-0.5.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate async-oneshot 0.5.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate async-oneshot 0.5.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-oneshot 0.5.0
[INFO] finished tweaking crates.io crate async-oneshot 0.5.0
[INFO] tweaked toml for crates.io crate async-oneshot 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", 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] ce2623015180f6cb8ddfcd3ef611663a0f18bddfab747d3093811e397e4b3a0a
[INFO] running `Command { std: "docker" "start" "-a" "ce2623015180f6cb8ddfcd3ef611663a0f18bddfab747d3093811e397e4b3a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce2623015180f6cb8ddfcd3ef611663a0f18bddfab747d3093811e397e4b3a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2623015180f6cb8ddfcd3ef611663a0f18bddfab747d3093811e397e4b3a0a", kill_on_drop: false }`
[INFO] [stdout] ce2623015180f6cb8ddfcd3ef611663a0f18bddfab747d3093811e397e4b3a0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c380086f861779989293c03b2a5c5c3a0b3b923818153fc69a8ca63ff7450a7
[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" "4c380086f861779989293c03b2a5c5c3a0b3b923818153fc69a8ca63ff7450a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-micro v0.5.0
[INFO] [stderr]    Compiling async-oneshot v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "4c380086f861779989293c03b2a5c5c3a0b3b923818153fc69a8ca63ff7450a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c380086f861779989293c03b2a5c5c3a0b3b923818153fc69a8ca63ff7450a7", kill_on_drop: false }`
[INFO] [stdout] 4c380086f861779989293c03b2a5c5c3a0b3b923818153fc69a8ca63ff7450a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac869bf19e0f8fc637037c31e00989917455936ddcc90be0c1bc08d821432207
[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" "ac869bf19e0f8fc637037c31e00989917455936ddcc90be0c1bc08d821432207", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-0.3.5/src/lib.rs:20:48
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![cfg_attr(feature = "real_blackbox", feature(test))]
[INFO] [stdout]    |                                                ^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `criterion` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ac869bf19e0f8fc637037c31e00989917455936ddcc90be0c1bc08d821432207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac869bf19e0f8fc637037c31e00989917455936ddcc90be0c1bc08d821432207", kill_on_drop: false }`
[INFO] [stdout] ac869bf19e0f8fc637037c31e00989917455936ddcc90be0c1bc08d821432207