[INFO] fetching crate structopt 0.3.20...
[INFO] checking structopt-0.3.20 against beta for pr-78714
[INFO] extracting crate structopt 0.3.20 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate structopt 0.3.20 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate structopt 0.3.20
[INFO] finished tweaking crates.io crate structopt 0.3.20
[INFO] tweaked toml for crates.io crate structopt 0.3.20 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate structopt 0.3.20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44f6046a9e4f28e36eaac4618ad69108a92db50865c0c3dcd4da6656dbf55a3f
[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" "44f6046a9e4f28e36eaac4618ad69108a92db50865c0c3dcd4da6656dbf55a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44f6046a9e4f28e36eaac4618ad69108a92db50865c0c3dcd4da6656dbf55a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f6046a9e4f28e36eaac4618ad69108a92db50865c0c3dcd4da6656dbf55a3f", kill_on_drop: false }`
[INFO] [stdout] 44f6046a9e4f28e36eaac4618ad69108a92db50865c0c3dcd4da6656dbf55a3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 177408e462ff46715fd39c5cc76b9e52151e313a918fc6e32a5853a169df7410
[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" "177408e462ff46715fd39c5cc76b9e52151e313a918fc6e32a5853a169df7410", kill_on_drop: false }`
[INFO] [stderr]     Checking dissimilar v1.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking trybuild v1.0.27
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking structopt v0.3.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.41s
[INFO] running `Command { std: "docker" "inspect" "177408e462ff46715fd39c5cc76b9e52151e313a918fc6e32a5853a169df7410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "177408e462ff46715fd39c5cc76b9e52151e313a918fc6e32a5853a169df7410", kill_on_drop: false }`
[INFO] [stdout] 177408e462ff46715fd39c5cc76b9e52151e313a918fc6e32a5853a169df7410