[INFO] cloning repository https://github.com/kinseytamsin/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kinseytamsin/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinseytamsin%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinseytamsin%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16a135c1689fcaa4f2e7e4dd708630fee87ebe61
[INFO] checking kinseytamsin/rlox against try#a8425075041d4b9af9bf32e2a267dfb9db2cfffb for pr-100043-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkinseytamsin%2Frlox" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kinseytamsin/rlox on toolchain a8425075041d4b9af9bf32e2a267dfb9db2cfffb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kinseytamsin/rlox
[INFO] finished tweaking git repo https://github.com/kinseytamsin/rlox
[INFO] tweaked toml for git repo https://github.com/kinseytamsin/rlox written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/kinseytamsin/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a70fa5e56e98a486c1713e7a881be8e010571ecf3e73bf0507b1e6edfca707db
[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" "a70fa5e56e98a486c1713e7a881be8e010571ecf3e73bf0507b1e6edfca707db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a70fa5e56e98a486c1713e7a881be8e010571ecf3e73bf0507b1e6edfca707db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70fa5e56e98a486c1713e7a881be8e010571ecf3e73bf0507b1e6edfca707db", kill_on_drop: false }`
[INFO] [stdout] a70fa5e56e98a486c1713e7a881be8e010571ecf3e73bf0507b1e6edfca707db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47f43a478da11767d05af31d26a7dba48ddf10bc0eb4062798df03ee5648190a
[INFO] running `Command { std: "docker" "start" "-a" "47f43a478da11767d05af31d26a7dba48ddf10bc0eb4062798df03ee5648190a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling syn v1.0.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking generate-ast v0.1.0 (/opt/rustwide/workdir/tool/generate-ast)
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir/rlox)
[INFO] [stdout] warning: fields `kind`, `lexeme`, `literal` and `line` are never read
[INFO] [stdout]   --> rlox/src/token.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Token<'a> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 32 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     lexeme: &'a str,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     literal: Option<Literal<'a>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 35 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `lexeme`, `literal` and `line` are never read
[INFO] [stdout]   --> rlox/src/token.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Token<'a> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 32 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     lexeme: &'a str,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     literal: Option<Literal<'a>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 35 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.99s
[INFO] running `Command { std: "docker" "inspect" "47f43a478da11767d05af31d26a7dba48ddf10bc0eb4062798df03ee5648190a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47f43a478da11767d05af31d26a7dba48ddf10bc0eb4062798df03ee5648190a", kill_on_drop: false }`
[INFO] [stdout] 47f43a478da11767d05af31d26a7dba48ddf10bc0eb4062798df03ee5648190a