[INFO] cloning repository https://github.com/striggldy/mpmp4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/striggldy/mpmp4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstriggldy%2Fmpmp4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstriggldy%2Fmpmp4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48b69f01dec7beb4496e93a864990334ad7f58e2
[INFO] testing striggldy/mpmp4 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstriggldy%2Fmpmp4" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/striggldy/mpmp4 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/striggldy/mpmp4
[INFO] finished tweaking git repo https://github.com/striggldy/mpmp4
[INFO] tweaked toml for git repo https://github.com/striggldy/mpmp4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/striggldy/mpmp4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88ba3f7c4d7e8f04720e1508c44e0a233f44e2ac9a5dbd1c3b8636a120963455
[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" "88ba3f7c4d7e8f04720e1508c44e0a233f44e2ac9a5dbd1c3b8636a120963455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88ba3f7c4d7e8f04720e1508c44e0a233f44e2ac9a5dbd1c3b8636a120963455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88ba3f7c4d7e8f04720e1508c44e0a233f44e2ac9a5dbd1c3b8636a120963455", kill_on_drop: false }`
[INFO] [stdout] 88ba3f7c4d7e8f04720e1508c44e0a233f44e2ac9a5dbd1c3b8636a120963455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41beb45b82f41aa851107c36a105625ac33c8d5045ec2bfa90246d5e22f63bd5
[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" "41beb45b82f41aa851107c36a105625ac33c8d5045ec2bfa90246d5e22f63bd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling mpmp4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<usize>` in the current scope
[INFO] [stdout]   --> src/main.rs:46:30
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 next_choices.remove_item(choice);
[INFO] [stdout]    |                              ^^^^^^^^^^^ method not found in `Vec<usize>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mpmp4` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "41beb45b82f41aa851107c36a105625ac33c8d5045ec2bfa90246d5e22f63bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41beb45b82f41aa851107c36a105625ac33c8d5045ec2bfa90246d5e22f63bd5", kill_on_drop: false }`
[INFO] [stdout] 41beb45b82f41aa851107c36a105625ac33c8d5045ec2bfa90246d5e22f63bd5