[INFO] fetching crate carapace_lb 0.1.1...
[INFO] building carapace_lb-0.1.1 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] extracting crate carapace_lb 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate carapace_lb 0.1.1 on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate carapace_lb 0.1.1
[INFO] finished tweaking crates.io crate carapace_lb 0.1.1
[INFO] tweaked toml for crates.io crate carapace_lb 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate carapace_lb 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f298cca5899d641f9041a8d1febb8ed60ab7907ba8128c9533c6399d6c0d5d85
[INFO] running `Command { std: "docker" "start" "-a" "f298cca5899d641f9041a8d1febb8ed60ab7907ba8128c9533c6399d6c0d5d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f298cca5899d641f9041a8d1febb8ed60ab7907ba8128c9533c6399d6c0d5d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f298cca5899d641f9041a8d1febb8ed60ab7907ba8128c9533c6399d6c0d5d85", kill_on_drop: false }`
[INFO] [stdout] f298cca5899d641f9041a8d1febb8ed60ab7907ba8128c9533c6399d6c0d5d85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26f73a1ac932b3cb9c45653548be8140c7d8f5ec52c770a1df7d893e71ebf661
[INFO] running `Command { std: "docker" "start" "-a" "26f73a1ac932b3cb9c45653548be8140c7d8f5ec52c770a1df7d893e71ebf661", kill_on_drop: false }`
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[INFO] [stderr]    Compiling carapace_lb v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 37s
[INFO] running `Command { std: "docker" "inspect" "26f73a1ac932b3cb9c45653548be8140c7d8f5ec52c770a1df7d893e71ebf661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26f73a1ac932b3cb9c45653548be8140c7d8f5ec52c770a1df7d893e71ebf661", kill_on_drop: false }`
[INFO] [stdout] 26f73a1ac932b3cb9c45653548be8140c7d8f5ec52c770a1df7d893e71ebf661
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c987cb017062980c6fc9ad11e5a0c8fd504e6e5922519f915751179758edbccb
[INFO] running `Command { std: "docker" "start" "-a" "c987cb017062980c6fc9ad11e5a0c8fd504e6e5922519f915751179758edbccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling carapace_lb v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "c987cb017062980c6fc9ad11e5a0c8fd504e6e5922519f915751179758edbccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c987cb017062980c6fc9ad11e5a0c8fd504e6e5922519f915751179758edbccb", kill_on_drop: false }`
[INFO] [stdout] c987cb017062980c6fc9ad11e5a0c8fd504e6e5922519f915751179758edbccb