[INFO] fetching crate cargo-dtc 1.7.5...
[INFO] building cargo-dtc-1.7.5 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate cargo-dtc 1.7.5 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cargo-dtc 1.7.5 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 cargo-dtc 1.7.5
[INFO] finished tweaking crates.io crate cargo-dtc 1.7.5
[INFO] tweaked toml for crates.io crate cargo-dtc 1.7.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-dtc 1.7.5 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] [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-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] de612dae69a5ddd1d7d65a4a9a36a5c172f0c3a7450353a50438e095d21a536e
[INFO] running `Command { std: "docker" "start" "-a" "de612dae69a5ddd1d7d65a4a9a36a5c172f0c3a7450353a50438e095d21a536e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de612dae69a5ddd1d7d65a4a9a36a5c172f0c3a7450353a50438e095d21a536e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de612dae69a5ddd1d7d65a4a9a36a5c172f0c3a7450353a50438e095d21a536e", kill_on_drop: false }`
[INFO] [stdout] de612dae69a5ddd1d7d65a4a9a36a5c172f0c3a7450353a50438e095d21a536e
[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] a56d88440d3ef2380ca8b53ca12997f276a6ffbd8e80ea9d2da7a60102d3f735
[INFO] running `Command { std: "docker" "start" "-a" "a56d88440d3ef2380ca8b53ca12997f276a6ffbd8e80ea9d2da7a60102d3f735", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.99
[INFO] [stderr]    Compiling cargo-dtc v1.7.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "a56d88440d3ef2380ca8b53ca12997f276a6ffbd8e80ea9d2da7a60102d3f735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a56d88440d3ef2380ca8b53ca12997f276a6ffbd8e80ea9d2da7a60102d3f735", kill_on_drop: false }`
[INFO] [stdout] a56d88440d3ef2380ca8b53ca12997f276a6ffbd8e80ea9d2da7a60102d3f735
[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] c2a08ff01581580cd71033fc01a16edd82c75a77498fe2d0d16c9e25187d4b41
[INFO] running `Command { std: "docker" "start" "-a" "c2a08ff01581580cd71033fc01a16edd82c75a77498fe2d0d16c9e25187d4b41", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-dtc v1.7.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "c2a08ff01581580cd71033fc01a16edd82c75a77498fe2d0d16c9e25187d4b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2a08ff01581580cd71033fc01a16edd82c75a77498fe2d0d16c9e25187d4b41", kill_on_drop: false }`
[INFO] [stdout] c2a08ff01581580cd71033fc01a16edd82c75a77498fe2d0d16c9e25187d4b41