[INFO] updating cached repository https://github.com/jonnyboyC/spacelox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/jonnyboyC/spacelox
[INFO] [stderr]  + 09e24c0...ad54f3a master     -> master  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ad54f3a2d0a2000341494f1bee2f8e9aaaab2e5d
[INFO] checking jonnyboyC/spacelox against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjonnyboyC%2Fspacelox" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonnyboyC/spacelox on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jonnyboyC/spacelox
[INFO] finished tweaking git repo https://github.com/jonnyboyC/spacelox
[INFO] tweaked toml for git repo https://github.com/jonnyboyC/spacelox written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jonnyboyC/spacelox already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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] 030ed8b34c812ba03757866a83b23b849b8a4250353ad30e8d53968b92c5567f
[INFO] running `"docker" "start" "-a" "030ed8b34c812ba03757866a83b23b849b8a4250353ad30e8d53968b92c5567f"`
[INFO] [stderr]     Checking space_lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `objects`
[INFO] [stderr]    --> src/vm.rs:176:3
[INFO] [stderr]     |
[INFO] [stderr] 176 |   objects: &'a Cell<Option<&'b Obj<'b>>>,
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `objects`
[INFO] [stderr]    --> src/vm.rs:176:3
[INFO] [stderr]     |
[INFO] [stderr] 176 |   objects: &'a Cell<Option<&'b Obj<'b>>>,
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `"docker" "inspect" "030ed8b34c812ba03757866a83b23b849b8a4250353ad30e8d53968b92c5567f"`
[INFO] running `"docker" "rm" "-f" "030ed8b34c812ba03757866a83b23b849b8a4250353ad30e8d53968b92c5567f"`
[INFO] [stdout] 030ed8b34c812ba03757866a83b23b849b8a4250353ad30e8d53968b92c5567f