[INFO] cloning repository https://github.com/cypriansakwa/Generators_of_an_Additive_Group_Z_n
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cypriansakwa/Generators_of_an_Additive_Group_Z_n" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcypriansakwa%2FGenerators_of_an_Additive_Group_Z_n", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcypriansakwa%2FGenerators_of_an_Additive_Group_Z_n'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb4af4fe7702fc37dcecde621fa9afdfcd457d8c
[INFO] building cypriansakwa/Generators_of_an_Additive_Group_Z_n against try#9b5e8b16bd1c4acf4cf8e6880368314cf021a987+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcypriansakwa%2FGenerators_of_an_Additive_Group_Z_n" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cypriansakwa/Generators_of_an_Additive_Group_Z_n on toolchain 9b5e8b16bd1c4acf4cf8e6880368314cf021a987
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cypriansakwa/Generators_of_an_Additive_Group_Z_n
[INFO] finished tweaking git repo https://github.com/cypriansakwa/Generators_of_an_Additive_Group_Z_n
[INFO] tweaked toml for git repo https://github.com/cypriansakwa/Generators_of_an_Additive_Group_Z_n written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cypriansakwa/Generators_of_an_Additive_Group_Z_n 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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d2f5be803dae13c92a6d1f2718d0906baa011288b7f446e2d28e47d46d18c40
[INFO] running `Command { std: "docker" "start" "-a" "4d2f5be803dae13c92a6d1f2718d0906baa011288b7f446e2d28e47d46d18c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d2f5be803dae13c92a6d1f2718d0906baa011288b7f446e2d28e47d46d18c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d2f5be803dae13c92a6d1f2718d0906baa011288b7f446e2d28e47d46d18c40", kill_on_drop: false }`
[INFO] [stdout] 4d2f5be803dae13c92a6d1f2718d0906baa011288b7f446e2d28e47d46d18c40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4508430793dbe2e3a55b834ca6afc4bc81b03e50d8e1c2242166178a3102dd1e
[INFO] running `Command { std: "docker" "start" "-a" "4508430793dbe2e3a55b834ca6afc4bc81b03e50d8e1c2242166178a3102dd1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling Generators_of_an_Additive_Group_Z_n v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "4508430793dbe2e3a55b834ca6afc4bc81b03e50d8e1c2242166178a3102dd1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4508430793dbe2e3a55b834ca6afc4bc81b03e50d8e1c2242166178a3102dd1e", kill_on_drop: false }`
[INFO] [stdout] 4508430793dbe2e3a55b834ca6afc4bc81b03e50d8e1c2242166178a3102dd1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 861ef0b0a8f40ccb3d51d499417255c7db04d5d15e40a2d9b03142d03c13f8f8
[INFO] running `Command { std: "docker" "start" "-a" "861ef0b0a8f40ccb3d51d499417255c7db04d5d15e40a2d9b03142d03c13f8f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling Generators_of_an_Additive_Group_Z_n v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "861ef0b0a8f40ccb3d51d499417255c7db04d5d15e40a2d9b03142d03c13f8f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "861ef0b0a8f40ccb3d51d499417255c7db04d5d15e40a2d9b03142d03c13f8f8", kill_on_drop: false }`
[INFO] [stdout] 861ef0b0a8f40ccb3d51d499417255c7db04d5d15e40a2d9b03142d03c13f8f8