[INFO] fetching crate pre-rfc3243-libtw2-packer 0.1.0...
[INFO] building pre-rfc3243-libtw2-packer-0.1.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate pre-rfc3243-libtw2-packer 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate pre-rfc3243-libtw2-packer 0.1.0 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 pre-rfc3243-libtw2-packer 0.1.0
[INFO] finished tweaking crates.io crate pre-rfc3243-libtw2-packer 0.1.0
[INFO] tweaked toml for crates.io crate pre-rfc3243-libtw2-packer 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.5.2 (available: v0.7.6)
[INFO] [stderr]       Adding quickcheck v0.4.1 (available: v1.0.3)
[INFO] [stderr]       Adding uuid v0.8.2 (available: v1.11.0)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded warn v0.2.2
[INFO] [stderr]   Downloaded buffer v0.1.9
[INFO] [stderr]   Downloaded quickcheck v0.4.1
[INFO] [stderr]   Downloaded pre-rfc3243-libtw2-common v0.1.0
[INFO] [stderr]   Downloaded hexdump v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e50ff990daecf5364739234e54b7b8dc973bb6cd75b7e08906b329b15347a1dc
[INFO] running `Command { std: "docker" "start" "-a" "e50ff990daecf5364739234e54b7b8dc973bb6cd75b7e08906b329b15347a1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e50ff990daecf5364739234e54b7b8dc973bb6cd75b7e08906b329b15347a1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50ff990daecf5364739234e54b7b8dc973bb6cd75b7e08906b329b15347a1dc", kill_on_drop: false }`
[INFO] [stdout] e50ff990daecf5364739234e54b7b8dc973bb6cd75b7e08906b329b15347a1dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6fb9ea665d4ea71ef3597ad9753d3316ef82008ec8cd81d2650955748b455ce8
[INFO] running `Command { std: "docker" "start" "-a" "6fb9ea665d4ea71ef3597ad9753d3316ef82008ec8cd81d2650955748b455ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling mac v0.0.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling buffer v0.1.9
[INFO] [stderr]    Compiling warn v0.2.2
[INFO] [stderr]    Compiling pre-rfc3243-libtw2-common v0.1.0
[INFO] [stderr]    Compiling pre-rfc3243-libtw2-packer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "6fb9ea665d4ea71ef3597ad9753d3316ef82008ec8cd81d2650955748b455ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb9ea665d4ea71ef3597ad9753d3316ef82008ec8cd81d2650955748b455ce8", kill_on_drop: false }`
[INFO] [stdout] 6fb9ea665d4ea71ef3597ad9753d3316ef82008ec8cd81d2650955748b455ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3b7e67c1c6cd3f3648cfc7a8b129de11cee480e1faf819ef84009a2db731355a
[INFO] running `Command { std: "docker" "start" "-a" "3b7e67c1c6cd3f3648cfc7a8b129de11cee480e1faf819ef84009a2db731355a", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling hexdump v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.4.1
[INFO] [stderr]    Compiling pre-rfc3243-libtw2-packer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "3b7e67c1c6cd3f3648cfc7a8b129de11cee480e1faf819ef84009a2db731355a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b7e67c1c6cd3f3648cfc7a8b129de11cee480e1faf819ef84009a2db731355a", kill_on_drop: false }`
[INFO] [stdout] 3b7e67c1c6cd3f3648cfc7a8b129de11cee480e1faf819ef84009a2db731355a