[INFO] cloning repository https://github.com/undo-lang/vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/undo-lang/vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundo-lang%2Fvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundo-lang%2Fvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c0f4047f4a6d19eb199bfd0fda45a402163ebdd
[INFO] documenting undo-lang/vm against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundo-lang%2Fvm" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/undo-lang/vm on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/undo-lang/vm
[INFO] finished tweaking git repo https://github.com/undo-lang/vm
[INFO] tweaked toml for git repo https://github.com/undo-lang/vm written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/undo-lang/vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fd0af87d772e2b5c6830646bdbb651cfa9a4f1d61232dc00b37feb78de47895
[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" "6fd0af87d772e2b5c6830646bdbb651cfa9a4f1d61232dc00b37feb78de47895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fd0af87d772e2b5c6830646bdbb651cfa9a4f1d61232dc00b37feb78de47895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd0af87d772e2b5c6830646bdbb651cfa9a4f1d61232dc00b37feb78de47895", kill_on_drop: false }`
[INFO] [stdout] 6fd0af87d772e2b5c6830646bdbb651cfa9a4f1d61232dc00b37feb78de47895
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d2f28c0a2b0e2c82c6cb91ef04f3df356df033206574a0902e6c19dc59f8480
[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" "2d2f28c0a2b0e2c82c6cb91ef04f3df356df033206574a0902e6c19dc59f8480", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking serde_json v1.0.3
[INFO] [stderr]     Checking undo-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting undo-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/vm.rs:140:25
[INFO] [stdout]     |
[INFO] [stdout] 140 |           Value::IntVal(n) =>
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/vm.rs:155:34
[INFO] [stdout]     |
[INFO] [stdout] 155 |           Value::ModuleFnRef(ns, name) if ns[0] == "Prelude" => {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ns`
[INFO] [stdout]    --> src/vm.rs:161:30
[INFO] [stdout]     |
[INFO] [stdout] 161 |           Value::ModuleFnRef(ns, name) => {
[INFO] [stdout]     |                              ^^ help: if this is intentional, prefix it with an underscore: `_ns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/vm.rs:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |             for i in (1..=*argNum).rev() {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `makeFrame` should have a snake case name
[INFO] [stdout]   --> src/vm.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn makeFrame(module: &Module, name: String) -> Frame {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `make_frame`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `curFn` should have a snake case name
[INFO] [stdout]   --> src/vm.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn curFn<'a>(module: &'a Module, fnName: String) -> &'a Vec<Instruction> {
[INFO] [stdout]    |    ^^^^^ help: convert the identifier to snake case: `cur_fn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fnName` should have a snake case name
[INFO] [stdout]   --> src/vm.rs:45:34
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn curFn<'a>(module: &'a Module, fnName: String) -> &'a Vec<Instruction> {
[INFO] [stdout]    |                                  ^^^^^^ help: convert the identifier to snake case: `fn_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `goMain` should have a snake case name
[INFO] [stdout]   --> src/vm.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn goMain(module: Module) {
[INFO] [stdout]    |    ^^^^^^ help: convert the identifier to snake case: `go_main`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `curFrame` should have a snake case name
[INFO] [stdout]   --> src/vm.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut curFrame = frames.back_mut().unwrap();
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `cur_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `argNum` should have a snake case name
[INFO] [stdout]    --> src/vm.rs:147:30
[INFO] [stdout]     |
[INFO] [stdout] 147 |       Some(Instruction::Call(argNum)) => {
[INFO] [stdout]     |                              ^^^^^^ help: convert the identifier to snake case: `arg_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newFrame` should have a snake case name
[INFO] [stdout]    --> src/vm.rs:166:21
[INFO] [stdout]     |
[INFO] [stdout] 166 |             let mut newFrame = makeFrame(&module, name.to_string());
[INFO] [stdout]     |                     ^^^^^^^^ help: convert the identifier to snake case: `new_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.64s
[INFO] running `Command { std: "docker" "inspect" "2d2f28c0a2b0e2c82c6cb91ef04f3df356df033206574a0902e6c19dc59f8480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d2f28c0a2b0e2c82c6cb91ef04f3df356df033206574a0902e6c19dc59f8480", kill_on_drop: false }`
[INFO] [stdout] 2d2f28c0a2b0e2c82c6cb91ef04f3df356df033206574a0902e6c19dc59f8480