[INFO] fetching crate ruma-events 0.22.0-alpha.1...
[INFO] checking ruma-events-0.22.0-alpha.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate ruma-events 0.22.0-alpha.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ruma-events 0.22.0-alpha.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruma-events 0.22.0-alpha.1
[INFO] finished tweaking crates.io crate ruma-events 0.22.0-alpha.1
[INFO] tweaked toml for crates.io crate ruma-events 0.22.0-alpha.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5dd5ec85201d4d7c65603affd42a80cb3bc49ee61e5c86aa021307627f7fc8f
[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" "b5dd5ec85201d4d7c65603affd42a80cb3bc49ee61e5c86aa021307627f7fc8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5dd5ec85201d4d7c65603affd42a80cb3bc49ee61e5c86aa021307627f7fc8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5dd5ec85201d4d7c65603affd42a80cb3bc49ee61e5c86aa021307627f7fc8f", kill_on_drop: false }`
[INFO] [stdout] b5dd5ec85201d4d7c65603affd42a80cb3bc49ee61e5c86aa021307627f7fc8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b35b213cc929492ed4d00ee4d0a7ea976bdf6fe5d62254346628e05bbecbfc5
[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" "0b35b213cc929492ed4d00ee4d0a7ea976bdf6fe5d62254346628e05bbecbfc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling ruma-events-macros v0.22.0-alpha.1
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking js_int v0.1.9
[INFO] [stderr]     Checking ruma-identifiers-validation v0.1.1
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking ruma-serde v0.2.3
[INFO] [stderr]    Compiling ruma-identifiers-macros v0.17.4
[INFO] [stderr]     Checking ruma-common v0.2.0
[INFO] [stderr]     Checking ruma-identifiers v0.17.4
[INFO] [stderr]     Checking ruma-events v0.22.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `Command { std: "docker" "inspect" "0b35b213cc929492ed4d00ee4d0a7ea976bdf6fe5d62254346628e05bbecbfc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b35b213cc929492ed4d00ee4d0a7ea976bdf6fe5d62254346628e05bbecbfc5", kill_on_drop: false }`
[INFO] [stdout] 0b35b213cc929492ed4d00ee4d0a7ea976bdf6fe5d62254346628e05bbecbfc5