[INFO] cloning repository https://github.com/Protryon/untyped-arena
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Protryon/untyped-arena" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtryon%2Funtyped-arena", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtryon%2Funtyped-arena'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65b1834b1f6697fa5559bc58fba2e05223e03049
[INFO] testing Protryon/untyped-arena against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtryon%2Funtyped-arena" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Protryon/untyped-arena on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Protryon/untyped-arena
[INFO] finished tweaking git repo https://github.com/Protryon/untyped-arena
[INFO] tweaked toml for git repo https://github.com/Protryon/untyped-arena written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Protryon/untyped-arena already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e336fdf7af86132cf61fef771704daac0bd928773d1380d21884bd2d786722a6
[INFO] running `Command { std: "docker" "start" "-a" "e336fdf7af86132cf61fef771704daac0bd928773d1380d21884bd2d786722a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e336fdf7af86132cf61fef771704daac0bd928773d1380d21884bd2d786722a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e336fdf7af86132cf61fef771704daac0bd928773d1380d21884bd2d786722a6", kill_on_drop: false }`
[INFO] [stdout] e336fdf7af86132cf61fef771704daac0bd928773d1380d21884bd2d786722a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41d626d3c845f51ea308495f8d2f3543886689e723c2bfe201fe944a4079d0b0
[INFO] running `Command { std: "docker" "start" "-a" "41d626d3c845f51ea308495f8d2f3543886689e723c2bfe201fe944a4079d0b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling untyped-arena v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "41d626d3c845f51ea308495f8d2f3543886689e723c2bfe201fe944a4079d0b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d626d3c845f51ea308495f8d2f3543886689e723c2bfe201fe944a4079d0b0", kill_on_drop: false }`
[INFO] [stdout] 41d626d3c845f51ea308495f8d2f3543886689e723c2bfe201fe944a4079d0b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d463f65334f41deb51c26ba7d9fe4721e70e43d5cc1193b94e856611c012066
[INFO] running `Command { std: "docker" "start" "-a" "9d463f65334f41deb51c26ba7d9fe4721e70e43d5cc1193b94e856611c012066", kill_on_drop: false }`
[INFO] [stderr]    Compiling untyped-arena v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/dropck_tests.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut a = arena.alloc(A::default());
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/dropck_tests.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut b = arena.alloc(A::default());
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `arena` does not live long enough
[INFO] [stdout]   --> examples/dropck_tests.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let arena = Arena::new();
[INFO] [stdout]    |         ----- binding `arena` declared here
[INFO] [stdout] 29 |     let mut a = arena.alloc(A::default());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ borrowed value does not live long enough
[INFO] [stdout] ...
[INFO] [stdout] 32 | }
[INFO] [stdout]    | -
[INFO] [stdout]    | |
[INFO] [stdout]    | `arena` dropped here while still borrowed
[INFO] [stdout]    | borrow might be used here, when `arena` is dropped and runs the `Drop` code for type `Arena`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untyped-arena` (example "dropck_tests") due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9d463f65334f41deb51c26ba7d9fe4721e70e43d5cc1193b94e856611c012066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d463f65334f41deb51c26ba7d9fe4721e70e43d5cc1193b94e856611c012066", kill_on_drop: false }`
[INFO] [stdout] 9d463f65334f41deb51c26ba7d9fe4721e70e43d5cc1193b94e856611c012066
