[INFO] fetching crate rargsxd 0.2.0...
[INFO] checking rargsxd-0.2.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate rargsxd 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rargsxd 0.2.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rargsxd 0.2.0
[INFO] finished tweaking crates.io crate rargsxd 0.2.0
[INFO] tweaked toml for crates.io crate rargsxd 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe2a7f849dafc2a450574da24de9c406a45199c037aad1eff3962a3c3840d845
[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" "fe2a7f849dafc2a450574da24de9c406a45199c037aad1eff3962a3c3840d845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe2a7f849dafc2a450574da24de9c406a45199c037aad1eff3962a3c3840d845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe2a7f849dafc2a450574da24de9c406a45199c037aad1eff3962a3c3840d845", kill_on_drop: false }`
[INFO] [stdout] fe2a7f849dafc2a450574da24de9c406a45199c037aad1eff3962a3c3840d845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b6333bb4b5f799c86a4a9ffb17a73627b8d440adf7cc84711d7dcc8a7fef889
[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" "4b6333bb4b5f799c86a4a9ffb17a73627b8d440adf7cc84711d7dcc8a7fef889", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rargsxd v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 | /         &self.args.iter().for_each(|arg| {
[INFO] [stdout] 198 | |             match arg.val {
[INFO] [stdout] 199 | |                 ArgVal::Bool(_) => flags.push(arg),
[INFO] [stdout] 200 | |                 ArgVal::Str(_) => options.push(arg),
[INFO] [stdout] 201 | |             }
[INFO] [stdout] 202 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 |         &self.args.iter().for_each(|arg| if arg.name.len() > longest {longest = arg.name.len()});
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 | /         &self.args.iter().for_each(|arg| {
[INFO] [stdout] 198 | |             match arg.val {
[INFO] [stdout] 199 | |                 ArgVal::Bool(_) => flags.push(arg),
[INFO] [stdout] 200 | |                 ArgVal::Str(_) => options.push(arg),
[INFO] [stdout] 201 | |             }
[INFO] [stdout] 202 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 205 |         &self.args.iter().for_each(|arg| if arg.name.len() > longest {longest = arg.name.len()});
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "4b6333bb4b5f799c86a4a9ffb17a73627b8d440adf7cc84711d7dcc8a7fef889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6333bb4b5f799c86a4a9ffb17a73627b8d440adf7cc84711d7dcc8a7fef889", kill_on_drop: false }`
[INFO] [stdout] 4b6333bb4b5f799c86a4a9ffb17a73627b8d440adf7cc84711d7dcc8a7fef889