[INFO] cloning repository https://github.com/PolySync/howser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PolySync/howser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolySync%2Fhowser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolySync%2Fhowser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8e1d2ebb6a1534b4104d614108f6a75c3966faa
[INFO] testing PolySync/howser against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolySync%2Fhowser" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PolySync/howser 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/PolySync/howser
[INFO] finished tweaking git repo https://github.com/PolySync/howser
[INFO] tweaked toml for git repo https://github.com/PolySync/howser written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/PolySync/howser 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b2d6754134fdb583567510375e71943c8c8a934959203f5736170b5e6375acb5
[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" "b2d6754134fdb583567510375e71943c8c8a934959203f5736170b5e6375acb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2d6754134fdb583567510375e71943c8c8a934959203f5736170b5e6375acb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d6754134fdb583567510375e71943c8c8a934959203f5736170b5e6375acb5", kill_on_drop: false }`
[INFO] [stdout] b2d6754134fdb583567510375e71943c8c8a934959203f5736170b5e6375acb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b7d6b5140d23b8cfaf5c47c27d2ed8fdc61ad0d8cacbfde9b075a8c23077130
[INFO] running `Command { std: "docker" "start" "-a" "7b7d6b5140d23b8cfaf5c47c27d2ed8fdc61ad0d8cacbfde9b075a8c23077130", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling clap v2.29.4
[INFO] [stderr]    Compiling doogie v1.0.0 (https://github.com/PolySync/doogie?tag=1.0.0#77015a45)
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `RefMut<'_, Vec<*mut CMarkNodePtr>>` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/git/checkouts/doogie-52d9eefd866dafa0/77015a4/src/lib.rs:1148:15
[INFO] [stdout]      |
[INFO] [stdout] 1148 |         roots.remove_item(pointer);
[INFO] [stdout]      |               ^^^^^^^^^^^ method not found in `RefMut<'_, Vec<*mut CMarkNodePtr>>`
[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 `doogie` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7b7d6b5140d23b8cfaf5c47c27d2ed8fdc61ad0d8cacbfde9b075a8c23077130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b7d6b5140d23b8cfaf5c47c27d2ed8fdc61ad0d8cacbfde9b075a8c23077130", kill_on_drop: false }`
[INFO] [stdout] 7b7d6b5140d23b8cfaf5c47c27d2ed8fdc61ad0d8cacbfde9b075a8c23077130