[INFO] cloning repository https://github.com/Front-Range-Foundry/concurrent
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Front-Range-Foundry/concurrent" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFront-Range-Foundry%2Fconcurrent", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFront-Range-Foundry%2Fconcurrent'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30aaba8159f4aa087d5de639050bfc6327939888
[INFO] building Front-Range-Foundry/concurrent against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFront-Range-Foundry%2Fconcurrent" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Front-Range-Foundry/concurrent 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 git repo https://github.com/Front-Range-Foundry/concurrent
[INFO] finished tweaking git repo https://github.com/Front-Range-Foundry/concurrent
[INFO] tweaked toml for git repo https://github.com/Front-Range-Foundry/concurrent written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Front-Range-Foundry/concurrent 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] 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] a84ef69420dd2958b45759f132cc4910503b7109e182808c29ad1053d9a0bc6c
[INFO] running `Command { std: "docker" "start" "-a" "a84ef69420dd2958b45759f132cc4910503b7109e182808c29ad1053d9a0bc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a84ef69420dd2958b45759f132cc4910503b7109e182808c29ad1053d9a0bc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84ef69420dd2958b45759f132cc4910503b7109e182808c29ad1053d9a0bc6c", kill_on_drop: false }`
[INFO] [stdout] a84ef69420dd2958b45759f132cc4910503b7109e182808c29ad1053d9a0bc6c
[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] 3ce9dda48e4ba583583bfdab1736eb6dcd31ff5853bc3c5cee832b70a07e062d
[INFO] running `Command { std: "docker" "start" "-a" "3ce9dda48e4ba583583bfdab1736eb6dcd31ff5853bc3c5cee832b70a07e062d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling iana-time-zone v0.1.46
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.22
[INFO] [stderr]    Compiling concurrent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "3ce9dda48e4ba583583bfdab1736eb6dcd31ff5853bc3c5cee832b70a07e062d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ce9dda48e4ba583583bfdab1736eb6dcd31ff5853bc3c5cee832b70a07e062d", kill_on_drop: false }`
[INFO] [stdout] 3ce9dda48e4ba583583bfdab1736eb6dcd31ff5853bc3c5cee832b70a07e062d
[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] 2e65d267eecf3b4d22d5a1860368d0e1be8bd0d45bbd6445feeba5ccf58bd172
[INFO] running `Command { std: "docker" "start" "-a" "2e65d267eecf3b4d22d5a1860368d0e1be8bd0d45bbd6445feeba5ccf58bd172", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "2e65d267eecf3b4d22d5a1860368d0e1be8bd0d45bbd6445feeba5ccf58bd172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e65d267eecf3b4d22d5a1860368d0e1be8bd0d45bbd6445feeba5ccf58bd172", kill_on_drop: false }`
[INFO] [stdout] 2e65d267eecf3b4d22d5a1860368d0e1be8bd0d45bbd6445feeba5ccf58bd172