[INFO] fetching crate slabbin 1.2.0...
[INFO] building slabbin-1.2.0 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate slabbin 1.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate slabbin 1.2.0 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 slabbin 1.2.0
[INFO] finished tweaking crates.io crate slabbin 1.2.0
[INFO] tweaked toml for crates.io crate slabbin 1.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate slabbin 1.2.0 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] 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] a8edb14cdb025b7ac7de91f4afbe5613fd84ce782e21c90dbb120b789e9e537f
[INFO] running `Command { std: "docker" "start" "-a" "a8edb14cdb025b7ac7de91f4afbe5613fd84ce782e21c90dbb120b789e9e537f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8edb14cdb025b7ac7de91f4afbe5613fd84ce782e21c90dbb120b789e9e537f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8edb14cdb025b7ac7de91f4afbe5613fd84ce782e21c90dbb120b789e9e537f", kill_on_drop: false }`
[INFO] [stdout] a8edb14cdb025b7ac7de91f4afbe5613fd84ce782e21c90dbb120b789e9e537f
[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] 30ba51a758f23d30abc646ab18b1a9e0a8a81ae602fa500c582bb4c7a87a0e68
[INFO] running `Command { std: "docker" "start" "-a" "30ba51a758f23d30abc646ab18b1a9e0a8a81ae602fa500c582bb4c7a87a0e68", kill_on_drop: false }`
[INFO] [stderr]    Compiling slabbin v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "30ba51a758f23d30abc646ab18b1a9e0a8a81ae602fa500c582bb4c7a87a0e68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ba51a758f23d30abc646ab18b1a9e0a8a81ae602fa500c582bb4c7a87a0e68", kill_on_drop: false }`
[INFO] [stdout] 30ba51a758f23d30abc646ab18b1a9e0a8a81ae602fa500c582bb4c7a87a0e68
[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] b9220cf8c7915500b2a310535122a9cadac92ec42728a1c337b774f12ff5301b
[INFO] running `Command { std: "docker" "start" "-a" "b9220cf8c7915500b2a310535122a9cadac92ec42728a1c337b774f12ff5301b", kill_on_drop: false }`
[INFO] [stderr]    Compiling slabbin v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "b9220cf8c7915500b2a310535122a9cadac92ec42728a1c337b774f12ff5301b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9220cf8c7915500b2a310535122a9cadac92ec42728a1c337b774f12ff5301b", kill_on_drop: false }`
[INFO] [stdout] b9220cf8c7915500b2a310535122a9cadac92ec42728a1c337b774f12ff5301b