[INFO] cloning repository https://github.com/fplust/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fplust/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffplust%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffplust%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa0b755dd5f7e3416eb3a3ad8cc841622b07a3c7
[INFO] checking fplust/rlox against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffplust%2Frlox" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fplust/rlox on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fplust/rlox
[INFO] finished tweaking git repo https://github.com/fplust/rlox
[INFO] tweaked toml for git repo https://github.com/fplust/rlox written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/fplust/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94f8eb890fbc7e6692ed3c6a7a400e00621266c0bdd8673f1eeb9ea4026db0cd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "94f8eb890fbc7e6692ed3c6a7a400e00621266c0bdd8673f1eeb9ea4026db0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94f8eb890fbc7e6692ed3c6a7a400e00621266c0bdd8673f1eeb9ea4026db0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94f8eb890fbc7e6692ed3c6a7a400e00621266c0bdd8673f1eeb9ea4026db0cd", kill_on_drop: false }`
[INFO] [stdout] 94f8eb890fbc7e6692ed3c6a7a400e00621266c0bdd8673f1eeb9ea4026db0cd
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52856c50fc0ed2b3ca26d9b494b370cad9cd8e4bf32d9d1e31f471751ad8f225
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "52856c50fc0ed2b3ca26d9b494b370cad9cd8e4bf32d9d1e31f471751ad8f225", kill_on_drop: false }`
[INFO] [stderr]     Checking gc v0.3.3
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling gc_derive v0.3.2
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/bin/gen_ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufWriter`, `Write`
[INFO] [stdout]  --> src/bin/gen_ast.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |               ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/bin/gen_ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufWriter`, `Write`
[INFO] [stdout]  --> src/bin/gen_ast.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |               ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:423:8
[INFO] [stdout]     |
[INFO] [stdout] 423 |     fn synchronize(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_enclosing`
[INFO] [stdout]   --> src/environment.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn get_enclosing(&self) -> Option<Environment> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `STRING` should have a snake case name
[INFO] [stdout]   --> src/object.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn STRING(s: String) -> Self {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `NUMBER` should have a snake case name
[INFO] [stdout]   --> src/object.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn NUMBER(s: f64) -> Self {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `BOOL` should have a snake case name
[INFO] [stdout]   --> src/object.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn BOOL(s: bool) -> Self {
[INFO] [stdout]    |            ^^^^ help: convert the identifier to snake case: `bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `NIL` should have a snake case name
[INFO] [stdout]   --> src/object.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn NIL() -> Self {
[INFO] [stdout]    |            ^^^ help: convert the identifier to snake case: `nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Function` should have a snake case name
[INFO] [stdout]   --> src/object.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn Function(s: LoxFunction) -> Self {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `function`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Class` should have a snake case name
[INFO] [stdout]   --> src/object.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn Class(s: LoxClass) -> Self {
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to snake case (notice the capitalization): `class`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Instance` should have a snake case name
[INFO] [stdout]   --> src/object.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn Instance(s: LoxInstance) -> Self {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:423:8
[INFO] [stdout]     |
[INFO] [stdout] 423 |     fn synchronize(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_enclosing`
[INFO] [stdout]   --> src/environment.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn get_enclosing(&self) -> Option<Environment> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `STRING` should have a snake case name
[INFO] [stdout]   --> src/object.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn STRING(s: String) -> Self {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `NUMBER` should have a snake case name
[INFO] [stdout]   --> src/object.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn NUMBER(s: f64) -> Self {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `BOOL` should have a snake case name
[INFO] [stdout]   --> src/object.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn BOOL(s: bool) -> Self {
[INFO] [stdout]    |            ^^^^ help: convert the identifier to snake case: `bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `NIL` should have a snake case name
[INFO] [stdout]   --> src/object.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn NIL() -> Self {
[INFO] [stdout]    |            ^^^ help: convert the identifier to snake case: `nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Function` should have a snake case name
[INFO] [stdout]   --> src/object.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn Function(s: LoxFunction) -> Self {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `function`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Class` should have a snake case name
[INFO] [stdout]   --> src/object.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn Class(s: LoxClass) -> Self {
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to snake case (notice the capitalization): `class`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `Instance` should have a snake case name
[INFO] [stdout]   --> src/object.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn Instance(s: LoxInstance) -> Self {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.57s
[INFO] running `Command { std: "docker" "inspect" "52856c50fc0ed2b3ca26d9b494b370cad9cd8e4bf32d9d1e31f471751ad8f225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52856c50fc0ed2b3ca26d9b494b370cad9cd8e4bf32d9d1e31f471751ad8f225", kill_on_drop: false }`
[INFO] [stdout] 52856c50fc0ed2b3ca26d9b494b370cad9cd8e4bf32d9d1e31f471751ad8f225