[INFO] fetching crate wit-walrus 0.5.0...
[INFO] checking wit-walrus-0.5.0 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate wit-walrus 0.5.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate wit-walrus 0.5.0 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wit-walrus 0.5.0
[INFO] finished tweaking crates.io crate wit-walrus 0.5.0
[INFO] tweaked toml for crates.io crate wit-walrus 0.5.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded walrus-macro v0.18.0
[INFO] [stderr]   Downloaded wit-parser v0.2.0
[INFO] [stderr]   Downloaded wasmparser v0.59.0
[INFO] [stderr]   Downloaded walrus v0.18.0
[INFO] [stderr]   Downloaded wit-writer v0.2.0
[INFO] [stderr]   Downloaded id-arena v2.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] 1065464e4b24e0bc0209ebe8bd0a2b6234363e5c6fba29fad834ff85d09db8af
[INFO] running `Command { std: "docker" "start" "-a" "1065464e4b24e0bc0209ebe8bd0a2b6234363e5c6fba29fad834ff85d09db8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1065464e4b24e0bc0209ebe8bd0a2b6234363e5c6fba29fad834ff85d09db8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1065464e4b24e0bc0209ebe8bd0a2b6234363e5c6fba29fad834ff85d09db8af", kill_on_drop: false }`
[INFO] [stdout] 1065464e4b24e0bc0209ebe8bd0a2b6234363e5c6fba29fad834ff85d09db8af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] 8276eeb88e135d9e1f3ac179488233c9d6d1e3f40b8df06530c48fdc62e5b2fe
[INFO] running `Command { std: "docker" "start" "-a" "8276eeb88e135d9e1f3ac179488233c9d6d1e3f40b8df06530c48fdc62e5b2fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking wasmparser v0.59.0
[INFO] [stderr]     Checking wit-writer v0.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking wit-parser v0.2.0
[INFO] [stderr]    Compiling walrus-macro v0.18.0
[INFO] [stderr]     Checking walrus v0.18.0
[INFO] [stderr]     Checking wit-walrus v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.16s
[INFO] running `Command { std: "docker" "inspect" "8276eeb88e135d9e1f3ac179488233c9d6d1e3f40b8df06530c48fdc62e5b2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8276eeb88e135d9e1f3ac179488233c9d6d1e3f40b8df06530c48fdc62e5b2fe", kill_on_drop: false }`
[INFO] [stdout] 8276eeb88e135d9e1f3ac179488233c9d6d1e3f40b8df06530c48fdc62e5b2fe