[INFO] updating cached repository https://github.com/zni/rlox
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7f3881879d8098388f9fae1f733d80423b31abf
[INFO] testing zni/rlox against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzni%2Frlox" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zni/rlox on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/zni/rlox
[INFO] finished tweaking git repo https://github.com/zni/rlox
[INFO] tweaked toml for git repo https://github.com/zni/rlox written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/zni/rlox already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ec6fead6b3d953f717a9fa4f283d8ee48d631bfc94943580015ebbbf5eb7286
[INFO] running `"docker" "start" "-a" "7ec6fead6b3d953f717a9fa4f283d8ee48d631bfc94943580015ebbbf5eb7286"`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/scanner.rs:285:24
[INFO] [stderr]     |
[INFO] [stderr] 284 |         match self.reserved.get(&slice) {
[INFO] [stderr]     |               ------------- immutable borrow occurs here
[INFO] [stderr] 285 |             Some(t) => self.add_token(t.clone()),
[INFO] [stderr]     |                        ^^^^           - immutable borrow later used here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `"docker" "inspect" "7ec6fead6b3d953f717a9fa4f283d8ee48d631bfc94943580015ebbbf5eb7286"`
[INFO] running `"docker" "rm" "-f" "7ec6fead6b3d953f717a9fa4f283d8ee48d631bfc94943580015ebbbf5eb7286"`
[INFO] [stdout] 7ec6fead6b3d953f717a9fa4f283d8ee48d631bfc94943580015ebbbf5eb7286
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stdout] 20ead370d9d1c109262401d47eccc8cbaef05b8b275d7259d685b6ae43397ac2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "20ead370d9d1c109262401d47eccc8cbaef05b8b275d7259d685b6ae43397ac2"`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/scanner.rs:285:24
[INFO] [stderr]     |
[INFO] [stderr] 284 |         match self.reserved.get(&slice) {
[INFO] [stderr]     |               ------------- immutable borrow occurs here
[INFO] [stderr] 285 |             Some(t) => self.add_token(t.clone()),
[INFO] [stderr]     |                        ^^^^           - immutable borrow later used here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "20ead370d9d1c109262401d47eccc8cbaef05b8b275d7259d685b6ae43397ac2"`
[INFO] running `"docker" "rm" "-f" "20ead370d9d1c109262401d47eccc8cbaef05b8b275d7259d685b6ae43397ac2"`
[INFO] [stdout] 20ead370d9d1c109262401d47eccc8cbaef05b8b275d7259d685b6ae43397ac2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2497370ffd48fad98fa0cb6ce55231338a15262acf0232f3b35b3472321c33f6
[INFO] running `"docker" "start" "-a" "2497370ffd48fad98fa0cb6ce55231338a15262acf0232f3b35b3472321c33f6"`
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/scanner.rs:285:24
[INFO] [stderr]     |
[INFO] [stderr] 284 |         match self.reserved.get(&slice) {
[INFO] [stderr]     |               ------------- immutable borrow occurs here
[INFO] [stderr] 285 |             Some(t) => self.add_token(t.clone()),
[INFO] [stderr]     |                        ^^^^           - immutable borrow later used here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rlox-4ddcafe921ce8e18
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2497370ffd48fad98fa0cb6ce55231338a15262acf0232f3b35b3472321c33f6"`
[INFO] running `"docker" "rm" "-f" "2497370ffd48fad98fa0cb6ce55231338a15262acf0232f3b35b3472321c33f6"`
[INFO] [stdout] 2497370ffd48fad98fa0cb6ce55231338a15262acf0232f3b35b3472321c33f6