[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] checking PolySync/howser against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPolySync%2Fhowser" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PolySync/howser on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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-9/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/PolySync/doogie`
[INFO] [stderr]     Updating git submodule `https://github.com/commonmark/cmark.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.5.10
[INFO] [stderr]   Downloaded clap v2.29.4
[INFO] [stderr]   Downloaded cmake v0.1.31
[INFO] [stderr]   Downloaded regex-syntax v0.6.1
[INFO] [stderr]   Downloaded regex v1.0.1
[INFO] [stderr]   Downloaded aho-corasick v0.6.5
[INFO] [stderr]   Downloaded serde v1.0.68
[INFO] [stderr]   Downloaded assert_cli v0.6.1
[INFO] [stderr]   Downloaded proptest v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7bb43a9b4083947aa49833c6da4b4e7a6b3cc4ce5ded23d15688daac325986c
[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" "e7bb43a9b4083947aa49833c6da4b4e7a6b3cc4ce5ded23d15688daac325986c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7bb43a9b4083947aa49833c6da4b4e7a6b3cc4ce5ded23d15688daac325986c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7bb43a9b4083947aa49833c6da4b4e7a6b3cc4ce5ded23d15688daac325986c", kill_on_drop: false }`
[INFO] [stdout] e7bb43a9b4083947aa49833c6da4b4e7a6b3cc4ce5ded23d15688daac325986c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--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] 897cda4a9d0c1f04225d41185f509b5f051a376c91bdad0149ec4910fb9945cf
[INFO] running `Command { std: "docker" "start" "-a" "897cda4a9d0c1f04225d41185f509b5f051a376c91bdad0149ec4910fb9945cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling serde v1.0.68
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking environment v0.1.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking regex-syntax v0.6.1
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking colored v1.6.0
[INFO] [stderr]     Checking aho-corasick v0.6.5
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking clap v2.29.4
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking proptest v0.3.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling doogie v1.0.0 (https://github.com/PolySync/doogie?tag=1.0.0#77015a45)
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.22
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "897cda4a9d0c1f04225d41185f509b5f051a376c91bdad0149ec4910fb9945cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "897cda4a9d0c1f04225d41185f509b5f051a376c91bdad0149ec4910fb9945cf", kill_on_drop: false }`
[INFO] [stdout] 897cda4a9d0c1f04225d41185f509b5f051a376c91bdad0149ec4910fb9945cf