[INFO] fetching crate btrfs-usage-monitor 0.1.1...
[INFO] checking btrfs-usage-monitor-0.1.1 against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] extracting crate btrfs-usage-monitor 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate btrfs-usage-monitor 0.1.1 on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btrfs-usage-monitor 0.1.1
[INFO] finished tweaking crates.io crate btrfs-usage-monitor 0.1.1
[INFO] tweaked toml for crates.io crate btrfs-usage-monitor 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate btrfs-usage-monitor 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "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] a45a64db6e3f10447753c56e4687696e544b1dffaa19d3d76fb8110c616bfd08
[INFO] running `Command { std: "docker" "start" "-a" "a45a64db6e3f10447753c56e4687696e544b1dffaa19d3d76fb8110c616bfd08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a45a64db6e3f10447753c56e4687696e544b1dffaa19d3d76fb8110c616bfd08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a45a64db6e3f10447753c56e4687696e544b1dffaa19d3d76fb8110c616bfd08", kill_on_drop: false }`
[INFO] [stdout] a45a64db6e3f10447753c56e4687696e544b1dffaa19d3d76fb8110c616bfd08
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--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] d9a0cccda6409ffb30893ccf2f9d82f6b54e652e17dbb2824e42f4166bffe73a
[INFO] running `Command { std: "docker" "start" "-a" "d9a0cccda6409ffb30893ccf2f9d82f6b54e652e17dbb2824e42f4166bffe73a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking btrfs-usage-monitor v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.73s
[INFO] running `Command { std: "docker" "inspect" "d9a0cccda6409ffb30893ccf2f9d82f6b54e652e17dbb2824e42f4166bffe73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9a0cccda6409ffb30893ccf2f9d82f6b54e652e17dbb2824e42f4166bffe73a", kill_on_drop: false }`
[INFO] [stdout] d9a0cccda6409ffb30893ccf2f9d82f6b54e652e17dbb2824e42f4166bffe73a