[INFO] updating cached repository https://github.com/benschau/rsh
[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] feb64da09403747bbd897685930b5cdc33b4404b
[INFO] documenting benschau/rsh against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenschau%2Frsh" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benschau/rsh on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benschau/rsh
[INFO] finished tweaking git repo https://github.com/benschau/rsh
[INFO] tweaked toml for git repo https://github.com/benschau/rsh written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/benschau/rsh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] b967b37491718ff21ce7f346b63ddca33a1a1194e2dd8a097b658694fcdb7a81
[INFO] running `Command { std: "docker" "start" "-a" "b967b37491718ff21ce7f346b63ddca33a1a1194e2dd8a097b658694fcdb7a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b967b37491718ff21ce7f346b63ddca33a1a1194e2dd8a097b658694fcdb7a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b967b37491718ff21ce7f346b63ddca33a1a1194e2dd8a097b658694fcdb7a81", kill_on_drop: false }`
[INFO] [stdout] b967b37491718ff21ce7f346b63ddca33a1a1194e2dd8a097b658694fcdb7a81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "RUSTDOCFLAGS=--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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91f828ef70910ca4a4f1bae6ef5e91f576ae2fd8cdb0aa56c15f1f51131ec993
[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" "91f828ef70910ca4a4f1bae6ef5e91f576ae2fd8cdb0aa56c15f1f51131ec993", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]  Documenting rsh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/builtin.rs:51:37
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn hash(string: &str) -> Result<(u32), Box<Error>> {
[INFO] [stdout]    |                                     ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/builtin.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     Ok((0))
[INFO] [stdout]    |        ^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/builtin.rs:58:24
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn pwd() -> Result<(PathBuf), Box<Error>> {
[INFO] [stdout]    |                        ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/builtin.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Ok((env::current_dir().unwrap()))
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.53s
[INFO] running `Command { std: "docker" "inspect" "91f828ef70910ca4a4f1bae6ef5e91f576ae2fd8cdb0aa56c15f1f51131ec993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91f828ef70910ca4a4f1bae6ef5e91f576ae2fd8cdb0aa56c15f1f51131ec993", kill_on_drop: false }`
[INFO] [stdout] 91f828ef70910ca4a4f1bae6ef5e91f576ae2fd8cdb0aa56c15f1f51131ec993