[INFO] updating cached repository https://github.com/carribus/rust_commander
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22c4b2d9f0ba6add0eaeb0ff89ea6392adcb665b
[INFO] checking carribus/rust_commander against try#6024cfef3a82f9a7688f07054f1650081bad3af5 for pr-74130
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarribus%2Frust_commander" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carribus/rust_commander on toolchain 6024cfef3a82f9a7688f07054f1650081bad3af5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/carribus/rust_commander
[INFO] finished tweaking git repo https://github.com/carribus/rust_commander
[INFO] tweaked toml for git repo https://github.com/carribus/rust_commander written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/carribus/rust_commander already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d10e031d02d15e18d42fbe5975cf74240698ca9bf3cfd36a64c73d5a7e1122c
[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" "9d10e031d02d15e18d42fbe5975cf74240698ca9bf3cfd36a64c73d5a7e1122c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d10e031d02d15e18d42fbe5975cf74240698ca9bf3cfd36a64c73d5a7e1122c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d10e031d02d15e18d42fbe5975cf74240698ca9bf3cfd36a64c73d5a7e1122c", kill_on_drop: false }`
[INFO] [stdout] 9d10e031d02d15e18d42fbe5975cf74240698ca9bf3cfd36a64c73d5a7e1122c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 38b5f62d21ff2d8ff984aefd55a9b131c84421fc5fd2607ab82821e5c791f722
[INFO] running `Command { std: "docker" "start" "-a" "38b5f62d21ff2d8ff984aefd55a9b131c84421fc5fd2607ab82821e5c791f722", kill_on_drop: false }`
[INFO] [stderr]     Checking commander v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `self.args` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib.rs:284:25
[INFO] [stdout]     |
[INFO] [stdout] 264 |                 let o = self.get_supported_option(value, longform);
[INFO] [stdout]     |                         ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 284 |                         self.args.insert(option.shortform.to_string(), CmdArgument { 
[INFO] [stdout]     |                         ^^^^^^^^^        ---------------- immutable borrow later used here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `self.args` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib.rs:284:25
[INFO] [stdout]     |
[INFO] [stdout] 264 |                 let o = self.get_supported_option(value, longform);
[INFO] [stdout]     |                         ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 284 |                         self.args.insert(option.shortform.to_string(), CmdArgument { 
[INFO] [stdout]     |                         ^^^^^^^^^        ---------------- immutable borrow later used here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "38b5f62d21ff2d8ff984aefd55a9b131c84421fc5fd2607ab82821e5c791f722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38b5f62d21ff2d8ff984aefd55a9b131c84421fc5fd2607ab82821e5c791f722", kill_on_drop: false }`
[INFO] [stdout] 38b5f62d21ff2d8ff984aefd55a9b131c84421fc5fd2607ab82821e5c791f722