[INFO] updating cached repository https://github.com/undo-lang/vm
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c0f4047f4a6d19eb199bfd0fda45a402163ebdd
[INFO] checking undo-lang/vm against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fundo-lang%2Fvm" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/undo-lang/vm on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/source/Cargo.toml
[INFO] crate git repo https://github.com/undo-lang/vm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa258d6b1790320ce02d8f85224100feb8ed494650483b60b93fe96e92199b58
[INFO] running `"docker" "start" "-a" "fa258d6b1790320ce02d8f85224100feb8ed494650483b60b93fe96e92199b58"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.100
[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] warning: unused variable: `n`
[INFO] [stderr]    --> src/vm.rs:140:25
[INFO] [stderr]     |
[INFO] [stderr] 140 |           Value::IntVal(n) =>
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/vm.rs:155:34
[INFO] [stderr]     |
[INFO] [stderr] 155 |           Value::ModuleFnRef(ns, name) if ns[0] == "Prelude" => {
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ns`
[INFO] [stderr]    --> src/vm.rs:161:30
[INFO] [stderr]     |
[INFO] [stderr] 161 |           Value::ModuleFnRef(ns, name) => {
[INFO] [stderr]     |                              ^^ help: if this is intentional, prefix it with an underscore: `_ns`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/vm.rs:167:17
[INFO] [stderr]     |
[INFO] [stderr] 167 |             for i in (1..=*argNum).rev() {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/vm.rs:140:25
[INFO] [stderr]     |
[INFO] [stderr] 140 |           Value::IntVal(n) =>
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/vm.rs:155:34
[INFO] [stderr]     |
[INFO] [stderr] 155 |           Value::ModuleFnRef(ns, name) if ns[0] == "Prelude" => {
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ns`
[INFO] [stderr]    --> src/vm.rs:161:30
[INFO] [stderr]     |
[INFO] [stderr] 161 |           Value::ModuleFnRef(ns, name) => {
[INFO] [stderr]     |                              ^^ help: if this is intentional, prefix it with an underscore: `_ns`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/vm.rs:167:17
[INFO] [stderr]     |
[INFO] [stderr] 167 |             for i in (1..=*argNum).rev() {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: function `makeFrame` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn makeFrame(module: &Module, name: String) -> Frame {
[INFO] [stderr]    |    ^^^^^^^^^ help: convert the identifier to snake case: `make_frame`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `curFn` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn curFn<'a>(module: &'a Module, fnName: String) -> &'a Vec<Instruction> {
[INFO] [stderr]    |    ^^^^^ help: convert the identifier to snake case: `cur_fn`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `fnName` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:45:34
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn curFn<'a>(module: &'a Module, fnName: String) -> &'a Vec<Instruction> {
[INFO] [stderr]    |                                  ^^^^^^ help: convert the identifier to snake case: `fn_name`
[INFO] [stderr] 
[INFO] [stderr] warning: function `goMain` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn goMain(module: Module) {
[INFO] [stderr]    |    ^^^^^^ help: convert the identifier to snake case: `go_main`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `curFrame` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |     let mut curFrame = frames.back_mut().unwrap();
[INFO] [stderr]    |             ^^^^^^^^ help: convert the identifier to snake case: `cur_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `argNum` should have a snake case name
[INFO] [stderr]    --> src/vm.rs:147:30
[INFO] [stderr]     |
[INFO] [stderr] 147 |       Some(Instruction::Call(argNum)) => {
[INFO] [stderr]     |                              ^^^^^^ help: convert the identifier to snake case: `arg_num`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `newFrame` should have a snake case name
[INFO] [stderr]    --> src/vm.rs:166:21
[INFO] [stderr]     |
[INFO] [stderr] 166 |             let mut newFrame = makeFrame(&module, name.to_string());
[INFO] [stderr]     |                     ^^^^^^^^ help: convert the identifier to snake case: `new_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function `makeFrame` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn makeFrame(module: &Module, name: String) -> Frame {
[INFO] [stderr]    |    ^^^^^^^^^ help: convert the identifier to snake case: `make_frame`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `curFn` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn curFn<'a>(module: &'a Module, fnName: String) -> &'a Vec<Instruction> {
[INFO] [stderr]    |    ^^^^^ help: convert the identifier to snake case: `cur_fn`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `fnName` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:45:34
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn curFn<'a>(module: &'a Module, fnName: String) -> &'a Vec<Instruction> {
[INFO] [stderr]    |                                  ^^^^^^ help: convert the identifier to snake case: `fn_name`
[INFO] [stderr] 
[INFO] [stderr] warning: function `goMain` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn goMain(module: Module) {
[INFO] [stderr]    |    ^^^^^^ help: convert the identifier to snake case: `go_main`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `curFrame` should have a snake case name
[INFO] [stderr]   --> src/vm.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |     let mut curFrame = frames.back_mut().unwrap();
[INFO] [stderr]    |             ^^^^^^^^ help: convert the identifier to snake case: `cur_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `argNum` should have a snake case name
[INFO] [stderr]    --> src/vm.rs:147:30
[INFO] [stderr]     |
[INFO] [stderr] 147 |       Some(Instruction::Call(argNum)) => {
[INFO] [stderr]     |                              ^^^^^^ help: convert the identifier to snake case: `arg_num`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `newFrame` should have a snake case name
[INFO] [stderr]    --> src/vm.rs:166:21
[INFO] [stderr]     |
[INFO] [stderr] 166 |             let mut newFrame = makeFrame(&module, name.to_string());
[INFO] [stderr]     |                     ^^^^^^^^ help: convert the identifier to snake case: `new_frame`
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.69s
[INFO] running `"docker" "inspect" "fa258d6b1790320ce02d8f85224100feb8ed494650483b60b93fe96e92199b58"`
[INFO] running `"docker" "rm" "-f" "fa258d6b1790320ce02d8f85224100feb8ed494650483b60b93fe96e92199b58"`
[INFO] [stdout] fa258d6b1790320ce02d8f85224100feb8ed494650483b60b93fe96e92199b58