[INFO] fetching crate text-grid 0.2.0...
[INFO] checking text-grid-0.2.0 against beta for pr-78714
[INFO] extracting crate text-grid 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate text-grid 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate text-grid 0.2.0
[INFO] finished tweaking crates.io crate text-grid 0.2.0
[INFO] tweaked toml for crates.io crate text-grid 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bc4ad5902e082242262418167d2896c0568318db09e704622627410e7d7a680
[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" "4bc4ad5902e082242262418167d2896c0568318db09e704622627410e7d7a680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bc4ad5902e082242262418167d2896c0568318db09e704622627410e7d7a680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bc4ad5902e082242262418167d2896c0568318db09e704622627410e7d7a680", kill_on_drop: false }`
[INFO] [stdout] 4bc4ad5902e082242262418167d2896c0568318db09e704622627410e7d7a680
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 015cbbd6bbcb2d0e3d59f7474c25781438aa7ca062eef61bec4d55af5462f5c2
[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" "015cbbd6bbcb2d0e3d59f7474c25781438aa7ca062eef61bec4d55af5462f5c2", kill_on_drop: false }`
[INFO] [stderr]     Checking text-grid v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grid.rs:99:27
[INFO] [stdout]    |
[INFO] [stdout] 99 |     _phantom: PhantomData<Fn(&R)>,
[INFO] [stdout]    |                           ^^^^^^ help: use `dyn`: `dyn Fn(&R)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grid.rs:160:27
[INFO] [stdout]     |
[INFO] [stdout] 160 |     _phantom: PhantomData<Fn(S)>,
[INFO] [stdout]     |                           ^^^^^ help: use `dyn`: `dyn Fn(S)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grid.rs:202:27
[INFO] [stdout]     |
[INFO] [stdout] 202 |     _phantom: PhantomData<Fn(S)>,
[INFO] [stdout]     |                           ^^^^^ help: use `dyn`: `dyn Fn(S)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grid.rs:99:27
[INFO] [stdout]    |
[INFO] [stdout] 99 |     _phantom: PhantomData<Fn(&R)>,
[INFO] [stdout]    |                           ^^^^^^ help: use `dyn`: `dyn Fn(&R)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grid.rs:160:27
[INFO] [stdout]     |
[INFO] [stdout] 160 |     _phantom: PhantomData<Fn(S)>,
[INFO] [stdout]     |                           ^^^^^ help: use `dyn`: `dyn Fn(S)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/grid.rs:202:27
[INFO] [stdout]     |
[INFO] [stdout] 202 |     _phantom: PhantomData<Fn(S)>,
[INFO] [stdout]     |                           ^^^^^ help: use `dyn`: `dyn Fn(S)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "015cbbd6bbcb2d0e3d59f7474c25781438aa7ca062eef61bec4d55af5462f5c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015cbbd6bbcb2d0e3d59f7474c25781438aa7ca062eef61bec4d55af5462f5c2", kill_on_drop: false }`
[INFO] [stdout] 015cbbd6bbcb2d0e3d59f7474c25781438aa7ca062eef61bec4d55af5462f5c2