[INFO] fetching crate hashtree-rs 0.2.0...
[INFO] building hashtree-rs-0.2.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate hashtree-rs 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate hashtree-rs 0.2.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hashtree-rs 0.2.0
[INFO] finished tweaking crates.io crate hashtree-rs 0.2.0
[INFO] tweaked toml for crates.io crate hashtree-rs 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate hashtree-rs 0.2.0 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16c371c1f8db070405259a2a2230beee1fbdf83cf3f5b28fc7b0aa0e67fb9da9
[INFO] running `Command { std: "docker" "start" "-a" "16c371c1f8db070405259a2a2230beee1fbdf83cf3f5b28fc7b0aa0e67fb9da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16c371c1f8db070405259a2a2230beee1fbdf83cf3f5b28fc7b0aa0e67fb9da9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c371c1f8db070405259a2a2230beee1fbdf83cf3f5b28fc7b0aa0e67fb9da9", kill_on_drop: false }`
[INFO] [stdout] 16c371c1f8db070405259a2a2230beee1fbdf83cf3f5b28fc7b0aa0e67fb9da9
[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=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e27f1c5a2ee922c0933aedf6ea55338fa7104482d1dc570db6d646830ca0fde
[INFO] running `Command { std: "docker" "start" "-a" "4e27f1c5a2ee922c0933aedf6ea55338fa7104482d1dc570db6d646830ca0fde", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.96
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling hashtree-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "4e27f1c5a2ee922c0933aedf6ea55338fa7104482d1dc570db6d646830ca0fde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e27f1c5a2ee922c0933aedf6ea55338fa7104482d1dc570db6d646830ca0fde", kill_on_drop: false }`
[INFO] [stdout] 4e27f1c5a2ee922c0933aedf6ea55338fa7104482d1dc570db6d646830ca0fde
[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=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82bb381f34a85a8dca134d0f46df0ff100c8c48c7a04a11de3ff681ba34b30a2
[INFO] running `Command { std: "docker" "start" "-a" "82bb381f34a85a8dca134d0f46df0ff100c8c48c7a04a11de3ff681ba34b30a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashtree-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "82bb381f34a85a8dca134d0f46df0ff100c8c48c7a04a11de3ff681ba34b30a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82bb381f34a85a8dca134d0f46df0ff100c8c48c7a04a11de3ff681ba34b30a2", kill_on_drop: false }`
[INFO] [stdout] 82bb381f34a85a8dca134d0f46df0ff100c8c48c7a04a11de3ff681ba34b30a2