[INFO] cloning repository https://github.com/d3jawu/kytherust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/d3jawu/kytherust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd3jawu%2Fkytherust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd3jawu%2Fkytherust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae651aa926ba517169b7cf3198b040ccbdbcb9e3
[INFO] checking d3jawu/kytherust against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd3jawu%2Fkytherust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/d3jawu/kytherust
[INFO] finished tweaking git repo https://github.com/d3jawu/kytherust
[INFO] tweaked toml for git repo https://github.com/d3jawu/kytherust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/d3jawu/kytherust 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/d3jawu/kytherust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 56aeaab2eceec44aac0b05a28dd3ec7cca3ceb536550f8cac0db5bef0796d074
[INFO] running `Command { std: "docker" "start" "-a" "56aeaab2eceec44aac0b05a28dd3ec7cca3ceb536550f8cac0db5bef0796d074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56aeaab2eceec44aac0b05a28dd3ec7cca3ceb536550f8cac0db5bef0796d074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56aeaab2eceec44aac0b05a28dd3ec7cca3ceb536550f8cac0db5bef0796d074", kill_on_drop: false }`
[INFO] [stdout] 56aeaab2eceec44aac0b05a28dd3ec7cca3ceb536550f8cac0db5bef0796d074
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9375f34bb2da03084148a6afa8862ee4fc440391d51489de4976dee4d7861bed
[INFO] running `Command { std: "docker" "start" "-a" "9375f34bb2da03084148a6afa8862ee4fc440391d51489de4976dee4d7861bed", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking kytherust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Error`
[INFO] [stdout]    --> src/tokenizer.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |     use std::io::Error;
[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 variable: `a`
[INFO] [stdout]   --> src/vm.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let a = self.stack.pop().expect("");
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/vm.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let b = self.stack.pop().expect("");
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/vm.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 let f = self.stack.pop().expect("");
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/vm.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |             Instruction::Field(name) => {}
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/vm.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let a = self.stack.pop().expect("");
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/vm.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 let b = self.stack.pop().expect("");
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/vm.rs:81:21
[INFO] [stdout]    |
[INFO] [stdout] 81 |                 let f = self.stack.pop().expect("");
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/vm.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |             Instruction::Field(name) => {}
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `If`, `While`, and `When` are never constructed
[INFO] [stdout]   --> src/parser.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum AstNode {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 76 |     If {
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     While {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     When,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstNode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]    --> src/parser.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub enum Literal {
[INFO] [stdout]     |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 108 |     String(String),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` 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: struct `KytheraVal` is never constructed
[INFO] [stdout]  --> src/vm.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct KytheraVal {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InternalVal` is never used
[INFO] [stdout]   --> src/vm.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum InternalVal {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]   --> src/vm.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum Instruction {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]   --> src/vm.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Frame {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, and `step` are never used
[INFO] [stdout]   --> src/vm.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl Frame {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 60 |     fn new(from: Vec<Instruction>) -> Frame {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn run(&mut self) {}
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 70 |
[INFO] [stdout] 71 |     fn step(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_from_string` is never used
[INFO] [stdout]   --> src/input_stream.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl InputStream {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn new_from_string(contents: &str) -> InputStream {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `If`, `While`, and `When` are never constructed
[INFO] [stdout]   --> src/parser.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub enum AstNode {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 76 |     If {
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     While {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     When,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstNode` 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 `String` is never constructed
[INFO] [stdout]    --> src/parser.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub enum Literal {
[INFO] [stdout]     |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 108 |     String(String),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Literal` 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: struct `KytheraVal` is never constructed
[INFO] [stdout]  --> src/vm.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct KytheraVal {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InternalVal` is never used
[INFO] [stdout]   --> src/vm.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum InternalVal {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]   --> src/vm.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum Instruction {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]   --> src/vm.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Frame {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, and `step` are never used
[INFO] [stdout]   --> src/vm.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl Frame {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 60 |     fn new(from: Vec<Instruction>) -> Frame {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn run(&mut self) {}
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 70 |
[INFO] [stdout] 71 |     fn step(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "9375f34bb2da03084148a6afa8862ee4fc440391d51489de4976dee4d7861bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9375f34bb2da03084148a6afa8862ee4fc440391d51489de4976dee4d7861bed", kill_on_drop: false }`
[INFO] [stdout] 9375f34bb2da03084148a6afa8862ee4fc440391d51489de4976dee4d7861bed