[INFO] cloning repository https://github.com/dmyTRUEk/bulls_and_cows_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmyTRUEk/bulls_and_cows_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdmyTRUEk%2Fbulls_and_cows_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdmyTRUEk%2Fbulls_and_cows_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb6ee1a1975ccecb33a146d045306805b9575d50
[INFO] building dmyTRUEk/bulls_and_cows_rs 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%2FdmyTRUEk%2Fbulls_and_cows_rs" "/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/dmyTRUEk/bulls_and_cows_rs 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/dmyTRUEk/bulls_and_cows_rs
[INFO] finished tweaking git repo https://github.com/dmyTRUEk/bulls_and_cows_rs
[INFO] tweaked toml for git repo https://github.com/dmyTRUEk/bulls_and_cows_rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dmyTRUEk/bulls_and_cows_rs 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] 60bffb3ecfea3ebd4986119c0793aa580f50a0e1713870467b90a0c17aad1742
[INFO] running `Command { std: "docker" "start" "-a" "60bffb3ecfea3ebd4986119c0793aa580f50a0e1713870467b90a0c17aad1742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60bffb3ecfea3ebd4986119c0793aa580f50a0e1713870467b90a0c17aad1742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60bffb3ecfea3ebd4986119c0793aa580f50a0e1713870467b90a0c17aad1742", kill_on_drop: false }`
[INFO] [stdout] 60bffb3ecfea3ebd4986119c0793aa580f50a0e1713870467b90a0c17aad1742
[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] 88697371fd1ab05efcb56c1cb99a33aa4a6dcbb53c06376c427692a0d0991164
[INFO] running `Command { std: "docker" "start" "-a" "88697371fd1ab05efcb56c1cb99a33aa4a6dcbb53c06376c427692a0d0991164", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling bulls_and_cows v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `sum` is never used
[INFO] [stdout]   --> src/main.rs:98:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     impl BullsAndCows {
[INFO] [stdout]    |     ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 98 |         pub const fn sum(self) -> i8 { self.bulls + self.cows }
[INFO] [stdout]    |                      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "88697371fd1ab05efcb56c1cb99a33aa4a6dcbb53c06376c427692a0d0991164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88697371fd1ab05efcb56c1cb99a33aa4a6dcbb53c06376c427692a0d0991164", kill_on_drop: false }`
[INFO] [stdout] 88697371fd1ab05efcb56c1cb99a33aa4a6dcbb53c06376c427692a0d0991164
[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] f83994686934273f8429114b8f86fd13524e6d3a8a2f6e67874782ef768a9948
[INFO] running `Command { std: "docker" "start" "-a" "f83994686934273f8429114b8f86fd13524e6d3a8a2f6e67874782ef768a9948", kill_on_drop: false }`
[INFO] [stderr]    Compiling bulls_and_cows v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `sum` is never used
[INFO] [stdout]   --> src/main.rs:98:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     impl BullsAndCows {
[INFO] [stdout]    |     ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 98 |         pub const fn sum(self) -> i8 { self.bulls + self.cows }
[INFO] [stdout]    |                      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "f83994686934273f8429114b8f86fd13524e6d3a8a2f6e67874782ef768a9948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f83994686934273f8429114b8f86fd13524e6d3a8a2f6e67874782ef768a9948", kill_on_drop: false }`
[INFO] [stdout] f83994686934273f8429114b8f86fd13524e6d3a8a2f6e67874782ef768a9948