[INFO] cloning repository https://github.com/Nickforall/yukon
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nickforall/yukon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickforall%2Fyukon"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickforall%2Fyukon'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b310c92cedf77b95fe66c2792fb3a280ee00f605
[INFO] checking Nickforall/yukon against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickforall%2Fyukon" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nickforall/yukon on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Nickforall/yukon
[INFO] finished tweaking git repo https://github.com/Nickforall/yukon
[INFO] tweaked toml for git repo https://github.com/Nickforall/yukon written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Nickforall/yukon already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] f61ee8aa9335ba825eefb392440807a666f503f29a21904649f93290bfab707b
[INFO] running `"docker" "start" "-a" "f61ee8aa9335ba825eefb392440807a666f503f29a21904649f93290bfab707b"`
[INFO] [stderr]    Compiling esprit v0.0.5
[INFO] [stderr]     Checking serde_json v0.7.4
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking unjson v0.0.5
[INFO] [stderr]     Checking joker v0.0.5
[INFO] [stderr]     Checking easter v0.0.5
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking estree v0.0.5
[INFO] [stderr]     Checking Yukon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/vm/scope.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `image`
[INFO] [stderr]   --> src/bytecode.rs:83:17
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn compile_decl(image: &mut Image, decl: easter::decl::Decl) {
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_image`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `decl`
[INFO] [stderr]   --> src/bytecode.rs:83:36
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn compile_decl(image: &mut Image, decl: easter::decl::Decl) {
[INFO] [stderr]    |                                    ^^^^ help: consider prefixing with an underscore: `_decl`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent`
[INFO] [stderr]   --> src/vm/scope.rs:14:25
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(id: i32, parent: i32) {
[INFO] [stderr]    |                         ^^^^^^ help: consider prefixing with an underscore: `_parent`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm/scope.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(id: i32, parent: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `JsNull`
[INFO] [stderr]   --> src/vm/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     JsNull,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Yukon` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `yukon`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `boolValue` should have a snake case name
[INFO] [stderr]   --> src/vm/operations.rs:52:24
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn handle_eq_with_bool(boolValue: &JsValue, comparedValue: &JsValue) -> JsValue {
[INFO] [stderr]    |                        ^^^^^^^^^ help: convert the identifier to snake case: `bool_value`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `comparedValue` should have a snake case name
[INFO] [stderr]   --> src/vm/operations.rs:52:45
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn handle_eq_with_bool(boolValue: &JsValue, comparedValue: &JsValue) -> JsValue {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `compared_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustyline::error::ReadlineError`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rustyline::error::ReadlineError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rustyline::Editor`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rustyline::Editor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ansi_term::Colour::RGB`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use ansi_term::Colour::RGB;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::env;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/vm/scope.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `image`
[INFO] [stderr]   --> src/bytecode.rs:83:17
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn compile_decl(image: &mut Image, decl: easter::decl::Decl) {
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_image`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `decl`
[INFO] [stderr]   --> src/bytecode.rs:83:36
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn compile_decl(image: &mut Image, decl: easter::decl::Decl) {
[INFO] [stderr]    |                                    ^^^^ help: consider prefixing with an underscore: `_decl`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `image`
[INFO] [stderr]   --> src/tests.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let image: Image;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_image`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent`
[INFO] [stderr]   --> src/vm/scope.rs:14:25
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(id: i32, parent: i32) {
[INFO] [stderr]    |                         ^^^^^^ help: consider prefixing with an underscore: `_parent`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ret_value_fmt`
[INFO] [stderr]  --> src/vm/repl.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn ret_value_fmt(val: &JsValue) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/vm/scope.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(id: i32, parent: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `JsNull`
[INFO] [stderr]   --> src/vm/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     JsNull,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Yukon` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `yukon`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `boolValue` should have a snake case name
[INFO] [stderr]   --> src/vm/operations.rs:52:24
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn handle_eq_with_bool(boolValue: &JsValue, comparedValue: &JsValue) -> JsValue {
[INFO] [stderr]    |                        ^^^^^^^^^ help: convert the identifier to snake case: `bool_value`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `comparedValue` should have a snake case name
[INFO] [stderr]   --> src/vm/operations.rs:52:45
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn handle_eq_with_bool(boolValue: &JsValue, comparedValue: &JsValue) -> JsValue {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `compared_value`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.98s
[INFO] running `"docker" "inspect" "f61ee8aa9335ba825eefb392440807a666f503f29a21904649f93290bfab707b"`
[INFO] running `"docker" "rm" "-f" "f61ee8aa9335ba825eefb392440807a666f503f29a21904649f93290bfab707b"`
[INFO] [stdout] f61ee8aa9335ba825eefb392440807a666f503f29a21904649f93290bfab707b