[INFO] cloning repository https://github.com/ShreyanJain9/moof-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShreyanJain9/moof-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShreyanJain9%2Fmoof-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShreyanJain9%2Fmoof-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb078a45a48440cb4c8dbbfab1e550dd1ad1777a
[INFO] checking ShreyanJain9/moof-rs against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShreyanJain9%2Fmoof-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ShreyanJain9/moof-rs
[INFO] finished tweaking git repo https://github.com/ShreyanJain9/moof-rs
[INFO] tweaked toml for git repo https://github.com/ShreyanJain9/moof-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ShreyanJain9/moof-rs on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ShreyanJain9/moof-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364
[INFO] running `Command { std: "docker" "start" "6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking unicode-segmentation v1.13.2
[INFO] [stderr]     Checking home v0.5.12
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking indexmap v2.13.0
[INFO] [stderr]     Checking rustix v1.1.4
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]     Checking rustyline v15.0.0
[INFO] [stderr]     Checking moof v0.14.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cell::UnsafeCell`
[INFO] [stdout]  --> src/bytecode.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::cell::UnsafeCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bytecode.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cons`
[INFO] [stdout]   --> src/compiler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::cons;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SymbolTable`
[INFO] [stdout]   --> src/compiler.rs:13:42
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::symbol::{KnownSymbols, SymId, SymbolTable};
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::moofint::MoofInt`
[INFO] [stdout]  --> src/vm.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::moofint::MoofInt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MoofClosure`
[INFO] [stdout]   --> src/vm.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::value::{ClosureBody, MoofClosure, MoofTable, Value};
[INFO] [stdout]    |                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::UnsafeCell`
[INFO] [stdout]  --> src/bytecode.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::cell::UnsafeCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bytecode.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cons`
[INFO] [stdout]   --> src/compiler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::cons;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SymbolTable`
[INFO] [stdout]   --> src/compiler.rs:13:42
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::symbol::{KnownSymbols, SymId, SymbolTable};
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::moofint::MoofInt`
[INFO] [stdout]  --> src/vm.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::moofint::MoofInt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MoofClosure`
[INFO] [stdout]   --> src/vm.rs:10:33
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::value::{ClosureBody, MoofClosure, MoofTable, Value};
[INFO] [stdout]    |                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pretty.rs:393:17
[INFO] [stdout]     |
[INFO] [stdout] 393 |             let mut param_names: Vec<String> = c.params.iter()
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to_pop`
[INFO] [stdout]    --> src/compiler.rs:281:13
[INFO] [stdout]     |
[INFO] [stdout] 281 |         let to_pop = locals_after - locals_before;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_pop`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pretty.rs:393:17
[INFO] [stdout]     |
[INFO] [stdout] 393 |             let mut param_names: Vec<String> = c.params.iter()
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |     let mut current_bp = bp;
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ip` is never read
[INFO] [stdout]    --> src/vm.rs:595:17
[INFO] [stdout]     |
[INFO] [stdout] 595 |                 ip += 3; // skip selector + argc
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to_pop`
[INFO] [stdout]    --> src/compiler.rs:281:13
[INFO] [stdout]     |
[INFO] [stdout] 281 |         let to_pop = locals_after - locals_before;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_pop`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `peek`, `check_ident`, and `list_from_slice` are never used
[INFO] [stdout]    --> src/parser.rs:49:8
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  49 |     fn peek(&self) -> Option<&Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     fn check_ident(&self, name: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn list_from_slice(items: &[Value]) -> Value {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `depth` and `mutable` are never read
[INFO] [stdout]   --> src/compiler.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Local {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 21 |     name: SymId,
[INFO] [stdout] 22 |     depth: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     is_captured: bool,
[INFO] [stdout] 24 |     mutable: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `known` and `builder` are never used
[INFO] [stdout]   --> src/compiler.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<'a> Compiler<'a> {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn known(&self) -> &KnownSymbols {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn builder(&mut self) -> &mut BytecodeBuilder {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |     let mut current_bp = bp;
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ip` is never read
[INFO] [stdout]    --> src/vm.rs:595:17
[INFO] [stdout]     |
[INFO] [stdout] 595 |                 ip += 3; // skip selector + argc
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/value.rs:340:22
[INFO] [stdout]     |
[INFO] [stdout] 340 |     pub fn iter_list(&self) -> crate::cons::ListIter {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 340 |     pub fn iter_list(&self) -> crate::cons::ListIter<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `peek`, `check_ident`, and `list_from_slice` are never used
[INFO] [stdout]    --> src/parser.rs:49:8
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  49 |     fn peek(&self) -> Option<&Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     fn check_ident(&self, name: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn list_from_slice(items: &[Value]) -> Value {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `depth` and `mutable` are never read
[INFO] [stdout]   --> src/compiler.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Local {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 21 |     name: SymId,
[INFO] [stdout] 22 |     depth: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     is_captured: bool,
[INFO] [stdout] 24 |     mutable: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `known` and `builder` are never used
[INFO] [stdout]   --> src/compiler.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | impl<'a> Compiler<'a> {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn known(&self) -> &KnownSymbols {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn builder(&mut self) -> &mut BytecodeBuilder {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/value.rs:340:22
[INFO] [stdout]     |
[INFO] [stdout] 340 |     pub fn iter_list(&self) -> crate::cons::ListIter {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 340 |     pub fn iter_list(&self) -> crate::cons::ListIter<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.29.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364", kill_on_drop: false }`
[INFO] [stdout] 6f11333ee00cd817e3730591566dd06d5b9dba40c5aeb6cc387b3debba313364
