[INFO] cloning repository https://github.com/AdrianDanis/dominion
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdrianDanis/dominion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdrianDanis%2Fdominion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdrianDanis%2Fdominion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 425f807ba64f852c92b18d7019273ea8cd65f3a0
[INFO] checking AdrianDanis/dominion against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdrianDanis%2Fdominion" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AdrianDanis/dominion on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AdrianDanis/dominion
[INFO] finished tweaking git repo https://github.com/AdrianDanis/dominion
[INFO] tweaked toml for git repo https://github.com/AdrianDanis/dominion written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/AdrianDanis/dominion already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Downloading crates ...
[INFO] [stderr] Downloaded proc-macro2 v0.4.13
[INFO] [stderr] Downloaded array-macro v1.0.2
[INFO] [stderr] Downloaded enum-map v0.4.1
[INFO] [stderr] Downloaded enum-map-derive v0.4.0
[INFO] [stderr] Downloaded reexport-proc-macro v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", 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] 7901b7273326561b882d38c194004ab11b30162df1225dbab861e37234d125d1
[INFO] running `Command { std: "docker" "start" "-a" "7901b7273326561b882d38c194004ab11b30162df1225dbab861e37234d125d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7901b7273326561b882d38c194004ab11b30162df1225dbab861e37234d125d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7901b7273326561b882d38c194004ab11b30162df1225dbab861e37234d125d1", kill_on_drop: false }`
[INFO] [stdout] 7901b7273326561b882d38c194004ab11b30162df1225dbab861e37234d125d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66ef18e5c30c6398cb37a48a4e8ab0aa0262e9bc58b96d49472a737671e3869e
[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" "66ef18e5c30c6398cb37a48a4e8ab0aa0262e9bc58b96d49472a737671e3869e", kill_on_drop: false }`
[INFO] [stderr] Compiling proc-macro2 v0.4.13
[INFO] [stderr] Compiling unicode-xid v0.1.0
[INFO] [stderr] Checking rand_core v0.2.1
[INFO] [stderr] Checking array-macro v1.0.2
[INFO] [stderr] Checking reexport-proc-macro v1.0.5
[INFO] [stderr] Checking rand v0.5.5
[INFO] [stderr] Compiling quote v0.6.8
[INFO] [stderr] Compiling syn v0.14.9
[INFO] [stderr] Compiling enum-map-derive v0.4.0
[INFO] [stderr] Checking enum-map v0.4.1
[INFO] [stderr] Checking dom_core v0.1.0 (/opt/rustwide/workdir/dom_core)
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec