[INFO] cloning repository https://github.com/HeronErin/HardyC
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HeronErin/HardyC" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeronErin%2FHardyC", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeronErin%2FHardyC'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5263bc0fa740f930f452e56f482883542c9da263
[INFO] checking HeronErin/HardyC against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeronErin%2FHardyC" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HeronErin/HardyC on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HeronErin/HardyC
[INFO] finished tweaking git repo https://github.com/HeronErin/HardyC
[INFO] tweaked toml for git repo https://github.com/HeronErin/HardyC written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HeronErin/HardyC 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fd299d84fea26a0ec26e5be8ec1e4a2d851a8c35d0d49fc865fc71da8e11937
[INFO] running `Command { std: "docker" "start" "-a" "9fd299d84fea26a0ec26e5be8ec1e4a2d851a8c35d0d49fc865fc71da8e11937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fd299d84fea26a0ec26e5be8ec1e4a2d851a8c35d0d49fc865fc71da8e11937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fd299d84fea26a0ec26e5be8ec1e4a2d851a8c35d0d49fc865fc71da8e11937", kill_on_drop: false }`
[INFO] [stdout] 9fd299d84fea26a0ec26e5be8ec1e4a2d851a8c35d0d49fc865fc71da8e11937
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68dea3375b7ad6f9286355c853d22916b76abb309a8800106f9698f5e3f45868
[INFO] running `Command { std: "docker" "start" "-a" "68dea3375b7ad6f9286355c853d22916b76abb309a8800106f9698f5e3f45868", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking HardyC v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0502]: cannot borrow `*unit` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/compiler/compile_time_exec/macro.rs:182:40
[INFO] [stdout]     |
[INFO] [stdout] 96  |     let seed = unit.files.last().expect("Unit was not seeded!");
[INFO] [stdout]     |                ---------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 179 |                         file,
[INFO] [stdout]     |                         ---- immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 182 |                         clone_mut_ref!(unit)
[INFO] [stdout]     |                                        ^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `HardyC` (bin "HardyC" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0502]: cannot borrow `*unit` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/compiler/compile_time_exec/macro.rs:182:40
[INFO] [stdout]     |
[INFO] [stdout] 96  |     let seed = unit.files.last().expect("Unit was not seeded!");
[INFO] [stdout]     |                ---------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 179 |                         file,
[INFO] [stdout]     |                         ---- immutable borrow later used here
[INFO] [stdout] ...
[INFO] [stdout] 182 |                         clone_mut_ref!(unit)
[INFO] [stdout]     |                                        ^^^^ mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `HardyC` (bin "HardyC") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "68dea3375b7ad6f9286355c853d22916b76abb309a8800106f9698f5e3f45868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68dea3375b7ad6f9286355c853d22916b76abb309a8800106f9698f5e3f45868", kill_on_drop: false }`
[INFO] [stdout] 68dea3375b7ad6f9286355c853d22916b76abb309a8800106f9698f5e3f45868
