[INFO] fetching crate tower-ready-cache 0.3.1...
[INFO] checking tower-ready-cache-0.3.1 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate tower-ready-cache 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tower-ready-cache 0.3.1 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-ready-cache 0.3.1
[INFO] finished tweaking crates.io crate tower-ready-cache 0.3.1
[INFO] tweaked toml for crates.io crate tower-ready-cache 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd92a187e6241ee629cfeb0e310ec666c88dd374c04e2a5da43b3420f568d3a5
[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" "fd92a187e6241ee629cfeb0e310ec666c88dd374c04e2a5da43b3420f568d3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd92a187e6241ee629cfeb0e310ec666c88dd374c04e2a5da43b3420f568d3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd92a187e6241ee629cfeb0e310ec666c88dd374c04e2a5da43b3420f568d3a5", kill_on_drop: false }`
[INFO] [stdout] fd92a187e6241ee629cfeb0e310ec666c88dd374c04e2a5da43b3420f568d3a5
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 0198f3a4af70529f3dfb4de95c88cb83d73e8acbd606f4c2c3db2c98e0fcf4b4
[INFO] running `Command { std: "docker" "start" "-a" "0198f3a4af70529f3dfb4de95c88cb83d73e8acbd606f4c2c3db2c98e0fcf4b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tokio-test v0.2.1
[INFO] [stderr]     Checking tower-ready-cache v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking tower-test v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.85s
[INFO] running `Command { std: "docker" "inspect" "0198f3a4af70529f3dfb4de95c88cb83d73e8acbd606f4c2c3db2c98e0fcf4b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0198f3a4af70529f3dfb4de95c88cb83d73e8acbd606f4c2c3db2c98e0fcf4b4", kill_on_drop: false }`
[INFO] [stdout] 0198f3a4af70529f3dfb4de95c88cb83d73e8acbd606f4c2c3db2c98e0fcf4b4