[INFO] fetching crate tikki_takki 0.1.0...
[INFO] building tikki_takki-0.1.0 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate tikki_takki 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tikki_takki 0.1.0 on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tikki_takki 0.1.0
[INFO] finished tweaking crates.io crate tikki_takki 0.1.0
[INFO] tweaked toml for crates.io crate tikki_takki 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate tikki_takki 0.1.0 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3eefeb0aefbe375d97a1c04430fdce519390272cd8f5f0e4b31539f3e2de8272
[INFO] running `Command { std: "docker" "start" "-a" "3eefeb0aefbe375d97a1c04430fdce519390272cd8f5f0e4b31539f3e2de8272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eefeb0aefbe375d97a1c04430fdce519390272cd8f5f0e4b31539f3e2de8272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eefeb0aefbe375d97a1c04430fdce519390272cd8f5f0e4b31539f3e2de8272", kill_on_drop: false }`
[INFO] [stdout] 3eefeb0aefbe375d97a1c04430fdce519390272cd8f5f0e4b31539f3e2de8272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1375b2449675c8ef2669ae31849f9a09733b776a45e5d025effc22ff6a9a3c58
[INFO] running `Command { std: "docker" "start" "-a" "1375b2449675c8ef2669ae31849f9a09733b776a45e5d025effc22ff6a9a3c58", kill_on_drop: false }`
[INFO] [stderr]    Compiling tikki_takki v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "1375b2449675c8ef2669ae31849f9a09733b776a45e5d025effc22ff6a9a3c58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1375b2449675c8ef2669ae31849f9a09733b776a45e5d025effc22ff6a9a3c58", kill_on_drop: false }`
[INFO] [stdout] 1375b2449675c8ef2669ae31849f9a09733b776a45e5d025effc22ff6a9a3c58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c62ddc4372c0b6622cec389db6541b7c3ebef5348a47d6ee233eaf9c887126b8
[INFO] running `Command { std: "docker" "start" "-a" "c62ddc4372c0b6622cec389db6541b7c3ebef5348a47d6ee233eaf9c887126b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling tikki_takki v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "c62ddc4372c0b6622cec389db6541b7c3ebef5348a47d6ee233eaf9c887126b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c62ddc4372c0b6622cec389db6541b7c3ebef5348a47d6ee233eaf9c887126b8", kill_on_drop: false }`
[INFO] [stdout] c62ddc4372c0b6622cec389db6541b7c3ebef5348a47d6ee233eaf9c887126b8