[INFO] cloning repository https://github.com/marioortizmanero/rust-optional-params [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marioortizmanero/rust-optional-params" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarioortizmanero%2Frust-optional-params", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarioortizmanero%2Frust-optional-params'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9c9ad7ba9fc0968b14ede6dc50a6af955801ce04 [INFO] checking marioortizmanero/rust-optional-params against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarioortizmanero%2Frust-optional-params" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/marioortizmanero/rust-optional-params on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/marioortizmanero/rust-optional-params [INFO] finished tweaking git repo https://github.com/marioortizmanero/rust-optional-params [INFO] tweaked toml for git repo https://github.com/marioortizmanero/rust-optional-params written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/marioortizmanero/rust-optional-params already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d2fbfb91ed1367bbdcc1ad3c959702b4bfbfe2293e5da79fe457e609d01b1b0a [INFO] running `Command { std: "docker" "start" "-a" "d2fbfb91ed1367bbdcc1ad3c959702b4bfbfe2293e5da79fe457e609d01b1b0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d2fbfb91ed1367bbdcc1ad3c959702b4bfbfe2293e5da79fe457e609d01b1b0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2fbfb91ed1367bbdcc1ad3c959702b4bfbfe2293e5da79fe457e609d01b1b0a", kill_on_drop: false }` [INFO] [stdout] d2fbfb91ed1367bbdcc1ad3c959702b4bfbfe2293e5da79fe457e609d01b1b0a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "-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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 56cd4aef3a521fa20166f48aa7fcc70d6ce30eb3b3ea2e86312cdfbb9e79387c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "56cd4aef3a521fa20166f48aa7fcc70d6ce30eb3b3ea2e86312cdfbb9e79387c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.21 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.40 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling derive_builder v0.9.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling duang v0.1.2 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling derive_builder_core v0.9.0 [INFO] [stderr] Checking optional_params_showcase v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 53.19s [INFO] running `Command { std: "docker" "inspect" "56cd4aef3a521fa20166f48aa7fcc70d6ce30eb3b3ea2e86312cdfbb9e79387c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56cd4aef3a521fa20166f48aa7fcc70d6ce30eb3b3ea2e86312cdfbb9e79387c", kill_on_drop: false }` [INFO] [stdout] 56cd4aef3a521fa20166f48aa7fcc70d6ce30eb3b3ea2e86312cdfbb9e79387c