[INFO] fetching crate punc 1.0.18...
[INFO] building punc-1.0.18 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] extracting crate punc 1.0.18 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate punc 1.0.18 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] started tweaking crates.io crate punc 1.0.18
[INFO] finished tweaking crates.io crate punc 1.0.18
[INFO] tweaked toml for crates.io crate punc 1.0.18 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate punc 1.0.18 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8133493cbe8df71375e759a9341825f4319f46ee36dd7840fe785f376bc1b173
[INFO] running `Command { std: "docker" "start" "-a" "8133493cbe8df71375e759a9341825f4319f46ee36dd7840fe785f376bc1b173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8133493cbe8df71375e759a9341825f4319f46ee36dd7840fe785f376bc1b173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8133493cbe8df71375e759a9341825f4319f46ee36dd7840fe785f376bc1b173", kill_on_drop: false }`
[INFO] [stdout] 8133493cbe8df71375e759a9341825f4319f46ee36dd7840fe785f376bc1b173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e41aba88cdd0982d3c3b64f2e3aadf1fded36fe8791273f1de6cbea9c1020848
[INFO] running `Command { std: "docker" "start" "-a" "e41aba88cdd0982d3c3b64f2e3aadf1fded36fe8791273f1de6cbea9c1020848", kill_on_drop: false }`
[INFO] [stderr]    Compiling im-lists v0.4.0
[INFO] [stderr]    Compiling punc v1.0.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "e41aba88cdd0982d3c3b64f2e3aadf1fded36fe8791273f1de6cbea9c1020848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41aba88cdd0982d3c3b64f2e3aadf1fded36fe8791273f1de6cbea9c1020848", kill_on_drop: false }`
[INFO] [stdout] e41aba88cdd0982d3c3b64f2e3aadf1fded36fe8791273f1de6cbea9c1020848
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a3d8d118d8ab0f020f02b59e99fb1e4d2e3d17c80a8e8ea930d28da82daec7cb
[INFO] running `Command { std: "docker" "start" "-a" "a3d8d118d8ab0f020f02b59e99fb1e4d2e3d17c80a8e8ea930d28da82daec7cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling punc v1.0.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "a3d8d118d8ab0f020f02b59e99fb1e4d2e3d17c80a8e8ea930d28da82daec7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3d8d118d8ab0f020f02b59e99fb1e4d2e3d17c80a8e8ea930d28da82daec7cb", kill_on_drop: false }`
[INFO] [stdout] a3d8d118d8ab0f020f02b59e99fb1e4d2e3d17c80a8e8ea930d28da82daec7cb