[INFO] fetching crate pearl 0.5.4...
[INFO] checking pearl-0.5.4 against beta for pr-78714
[INFO] extracting crate pearl 0.5.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate pearl 0.5.4 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 pearl 0.5.4
[INFO] finished tweaking crates.io crate pearl 0.5.4
[INFO] tweaked toml for crates.io crate pearl 0.5.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate pearl 0.5.4 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 27957e9dc774c8a27612e09a6222d9f7db345cb0418b596eb39c404a735231a3
[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" "27957e9dc774c8a27612e09a6222d9f7db345cb0418b596eb39c404a735231a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27957e9dc774c8a27612e09a6222d9f7db345cb0418b596eb39c404a735231a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27957e9dc774c8a27612e09a6222d9f7db345cb0418b596eb39c404a735231a3", kill_on_drop: false }`
[INFO] [stdout] 27957e9dc774c8a27612e09a6222d9f7db345cb0418b596eb39c404a735231a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 37678ae13ae9dcfe5c03a0a32e21b61e66e21f9602123e020788eb1459cd9aa1
[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" "37678ae13ae9dcfe5c03a0a32e21b61e66e21f9602123e020788eb1459cd9aa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking rio v0.9.4
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking ahash v0.5.3
[INFO] [stderr]     Checking bitvec v0.19.3
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling tokio-macros v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking tokio v0.3.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking futures-executor v0.3.6
[INFO] [stderr]     Checking futures v0.3.6
[INFO] [stderr]     Checking pearl v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.24s
[INFO] running `Command { std: "docker" "inspect" "37678ae13ae9dcfe5c03a0a32e21b61e66e21f9602123e020788eb1459cd9aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37678ae13ae9dcfe5c03a0a32e21b61e66e21f9602123e020788eb1459cd9aa1", kill_on_drop: false }`
[INFO] [stdout] 37678ae13ae9dcfe5c03a0a32e21b61e66e21f9602123e020788eb1459cd9aa1