[INFO] fetching crate public_items 0.9.1...
[INFO] building public_items-0.9.1 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate public_items 0.9.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate public_items 0.9.1 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 public_items 0.9.1
[INFO] finished tweaking crates.io crate public_items 0.9.1
[INFO] tweaked toml for crates.io crate public_items 0.9.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate public_items 0.9.1 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4273afab865a5f662aa2ee9613fb31a3f1297cdf60e69fbe8ebfd6de5ea64194
[INFO] running `Command { std: "docker" "start" "-a" "4273afab865a5f662aa2ee9613fb31a3f1297cdf60e69fbe8ebfd6de5ea64194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4273afab865a5f662aa2ee9613fb31a3f1297cdf60e69fbe8ebfd6de5ea64194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4273afab865a5f662aa2ee9613fb31a3f1297cdf60e69fbe8ebfd6de5ea64194", kill_on_drop: false }`
[INFO] [stdout] 4273afab865a5f662aa2ee9613fb31a3f1297cdf60e69fbe8ebfd6de5ea64194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c4780cbc3f4630ce92f6c23a18f54060fa205a23196bbc0b7f67a3c0d2f2088f
[INFO] running `Command { std: "docker" "start" "-a" "c4780cbc3f4630ce92f6c23a18f54060fa205a23196bbc0b7f67a3c0d2f2088f", kill_on_drop: false }`
[INFO] [stderr]    Compiling public_items v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "c4780cbc3f4630ce92f6c23a18f54060fa205a23196bbc0b7f67a3c0d2f2088f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4780cbc3f4630ce92f6c23a18f54060fa205a23196bbc0b7f67a3c0d2f2088f", kill_on_drop: false }`
[INFO] [stdout] c4780cbc3f4630ce92f6c23a18f54060fa205a23196bbc0b7f67a3c0d2f2088f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 51aa5fa169e994c3e2a9012cd26414027735c6971fc77a2fae7568c92c9d56f4
[INFO] running `Command { std: "docker" "start" "-a" "51aa5fa169e994c3e2a9012cd26414027735c6971fc77a2fae7568c92c9d56f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling public_items v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "51aa5fa169e994c3e2a9012cd26414027735c6971fc77a2fae7568c92c9d56f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51aa5fa169e994c3e2a9012cd26414027735c6971fc77a2fae7568c92c9d56f4", kill_on_drop: false }`
[INFO] [stdout] 51aa5fa169e994c3e2a9012cd26414027735c6971fc77a2fae7568c92c9d56f4