[INFO] fetching crate io-streams 0.3.0...
[INFO] checking io-streams-0.3.0 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate io-streams 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate io-streams 0.3.0 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-streams 0.3.0
[INFO] finished tweaking crates.io crate io-streams 0.3.0
[INFO] tweaked toml for crates.io crate io-streams 0.3.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate io-streams 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cap-fs-ext v0.13.7
[INFO] [stderr]   Downloaded fs-set-times v0.3.1
[INFO] [stderr]   Downloaded cap-primitives v0.13.7
[INFO] [stderr]   Downloaded char-device v0.3.1
[INFO] [stderr]   Downloaded cap-tempfile v0.13.7
[INFO] [stderr]   Downloaded layered-io v0.4.0
[INFO] [stderr]   Downloaded socketpair v0.6.1
[INFO] [stderr]   Downloaded terminal-io v0.3.0
[INFO] [stderr]   Downloaded duplex v0.3.1
[INFO] [stderr]   Downloaded utf8-io v0.4.0
[INFO] [stderr]   Downloaded cap-std v0.13.7
[INFO] [stderr]   Downloaded system-interface v0.6.3
[INFO] [stderr]   Downloaded winx v0.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2eda48b01e6271577a2875c84f6b13485af33bb31e8083bf47d192ef44c64665
[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" "2eda48b01e6271577a2875c84f6b13485af33bb31e8083bf47d192ef44c64665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2eda48b01e6271577a2875c84f6b13485af33bb31e8083bf47d192ef44c64665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eda48b01e6271577a2875c84f6b13485af33bb31e8083bf47d192ef44c64665", kill_on_drop: false }`
[INFO] [stdout] 2eda48b01e6271577a2875c84f6b13485af33bb31e8083bf47d192ef44c64665
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b632b885e429a536c6907800a0bcd40d09f9f8a7a7c7dfc7ca3db5b9edf5b2d8
[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" "b632b885e429a536c6907800a0bcd40d09f9f8a7a7c7dfc7ca3db5b9edf5b2d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking maybe-owned v0.3.4
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling unsafe-io v0.6.2
[INFO] [stderr]    Compiling char-device v0.3.1
[INFO] [stderr]    Compiling cap-primitives v0.13.7
[INFO] [stderr]    Compiling system-interface v0.6.3
[INFO] [stderr]    Compiling cap-std v0.13.7
[INFO] [stderr]    Compiling io-streams v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking posish v0.6.1
[INFO] [stderr]     Checking fs-set-times v0.3.1
[INFO] [stderr]     Checking duplex v0.3.1
[INFO] [stderr]     Checking cap-tempfile v0.13.7
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `Command { std: "docker" "inspect" "b632b885e429a536c6907800a0bcd40d09f9f8a7a7c7dfc7ca3db5b9edf5b2d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b632b885e429a536c6907800a0bcd40d09f9f8a7a7c7dfc7ca3db5b9edf5b2d8", kill_on_drop: false }`
[INFO] [stdout] b632b885e429a536c6907800a0bcd40d09f9f8a7a7c7dfc7ca3db5b9edf5b2d8