[INFO] cloning repository https://github.com/alihsaas/neko
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alihsaas/neko" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falihsaas%2Fneko", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falihsaas%2Fneko'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 45b616cbdb03763b7bdc345c20340027def67b75
[INFO] checking alihsaas/neko against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falihsaas%2Fneko" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alihsaas/neko
[INFO] finished tweaking git repo https://github.com/alihsaas/neko
[INFO] tweaked toml for git repo https://github.com/alihsaas/neko written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alihsaas/neko on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alihsaas/neko 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline-derive v0.4.0
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded built v0.5.0
[INFO] [stderr]   Downloaded cargo-lock v6.0.1
[INFO] [stderr]   Downloaded vcpkg v0.2.13
[INFO] [stderr]   Downloaded fd-lock v2.0.0
[INFO] [stderr]   Downloaded rustyline v8.2.0
[INFO] [stderr]   Downloaded git2 v0.13.19
[INFO] [stderr]   Downloaded libgit2-sys v0.12.20+1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa451ae9f5cd09b72b825eff479e1edd2525f4d6357bbce34853212e6a661312
[INFO] running `Command { std: "docker" "start" "-a" "fa451ae9f5cd09b72b825eff479e1edd2525f4d6357bbce34853212e6a661312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa451ae9f5cd09b72b825eff479e1edd2525f4d6357bbce34853212e6a661312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa451ae9f5cd09b72b825eff479e1edd2525f4d6357bbce34853212e6a661312", kill_on_drop: false }`
[INFO] [stdout] fa451ae9f5cd09b72b825eff479e1edd2525f4d6357bbce34853212e6a661312
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9549bd0bfa0b75a49949bfdd813ef35c5ee57fc160cdaa2f6847786a6d3bb2f
[INFO] running `Command { std: "docker" "start" "-a" "e9549bd0bfa0b75a49949bfdd813ef35c5ee57fc160cdaa2f6847786a6d3bb2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fd-lock v2.0.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libgit2-sys v0.12.20+1.1.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking rustyline v8.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling rustyline-derive v0.4.0
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]    Compiling git2 v0.13.19
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking cargo-lock v6.0.1
[INFO] [stderr]     Checking built v0.5.0
[INFO] [stderr]    Compiling neko v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `enable_editor` is never used
[INFO] [stdout]   --> src/repl.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Repl {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn enable_editor(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `analyze` is never used
[INFO] [stdout]    --> src/semantic_analyzer.rs:259:12
[INFO] [stdout]     |
[INFO] [stdout]  16 | impl SemanticAnalyzer {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 259 |     pub fn analyze(&mut self, node: &Node) -> SResult {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `symbol_type` are never read
[INFO] [stdout]  --> src/symbol.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct VarSymbol {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 3 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 4 |     pub symbol_type: TypeSymbol,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VarSymbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `param` are never read
[INFO] [stdout]   --> src/symbol.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct FunctionSymbol {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout]  9 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 10 |     pub param: Vec<String>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionSymbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Number` is never constructed
[INFO] [stdout]   --> src/symbol.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum TypeSymbol {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 15 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeSymbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/symbol.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |     VarSymbol(VarSymbol),
[INFO] [stdout]    |     --------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     VarSymbol(VarSymbol),
[INFO] [stdout] 21 +     VarSymbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/symbol.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |     FunctionSymbol(FunctionSymbol),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 -     FunctionSymbol(FunctionSymbol),
[INFO] [stdout] 23 +     FunctionSymbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope_name` is never read
[INFO] [stdout]  --> src/symbol_table.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct SymbolTable {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 6 |     pub symbols: HashMap<String, Symbol>,
[INFO] [stdout] 7 |     pub scope_name: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SymbolTable` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/enviroment.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]    |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 15 |         function: fn(args: Vec<Value>) -> Result<Value, NekoError>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `enable_editor` is never used
[INFO] [stdout]   --> src/repl.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Repl {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn enable_editor(&mut self) {
[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 `name` and `symbol_type` are never read
[INFO] [stdout]  --> src/symbol.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct VarSymbol {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 3 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 4 |     pub symbol_type: TypeSymbol,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VarSymbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `param` are never read
[INFO] [stdout]   --> src/symbol.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct FunctionSymbol {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout]  9 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 10 |     pub param: Vec<String>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionSymbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Number` is never constructed
[INFO] [stdout]   --> src/symbol.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum TypeSymbol {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 15 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TypeSymbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/symbol.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |     VarSymbol(VarSymbol),
[INFO] [stdout]    |     --------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     VarSymbol(VarSymbol),
[INFO] [stdout] 21 +     VarSymbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/symbol.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |     FunctionSymbol(FunctionSymbol),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 -     FunctionSymbol(FunctionSymbol),
[INFO] [stdout] 23 +     FunctionSymbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope_name` is never read
[INFO] [stdout]  --> src/symbol_table.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct SymbolTable {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 6 |     pub symbols: HashMap<String, Symbol>,
[INFO] [stdout] 7 |     pub scope_name: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SymbolTable` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/enviroment.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]    |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 15 |         function: fn(args: Vec<Value>) -> Result<Value, NekoError>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.95s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cargo-lock v6.0.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 11`
[INFO] running `Command { std: "docker" "inspect" "e9549bd0bfa0b75a49949bfdd813ef35c5ee57fc160cdaa2f6847786a6d3bb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9549bd0bfa0b75a49949bfdd813ef35c5ee57fc160cdaa2f6847786a6d3bb2f", kill_on_drop: false }`
[INFO] [stdout] e9549bd0bfa0b75a49949bfdd813ef35c5ee57fc160cdaa2f6847786a6d3bb2f
