[INFO] fetching crate predicates-tree 1.0.0...
[INFO] checking predicates-tree-1.0.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate predicates-tree 1.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate predicates-tree 1.0.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate predicates-tree 1.0.0
[INFO] finished tweaking crates.io crate predicates-tree 1.0.0
[INFO] tweaked toml for crates.io crate predicates-tree 1.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18d9e4c8580c6ea7ae60ae491b5a0352adef483d78c473f56f126a2441191fc9
[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" "18d9e4c8580c6ea7ae60ae491b5a0352adef483d78c473f56f126a2441191fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18d9e4c8580c6ea7ae60ae491b5a0352adef483d78c473f56f126a2441191fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d9e4c8580c6ea7ae60ae491b5a0352adef483d78c473f56f126a2441191fc9", kill_on_drop: false }`
[INFO] [stdout] 18d9e4c8580c6ea7ae60ae491b5a0352adef483d78c473f56f126a2441191fc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7b14674a1c43fe3bc2406ce2e2116bb0931331e56b6f9ddc7b5a01bf98e53e5
[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" "d7b14674a1c43fe3bc2406ce2e2116bb0931331e56b6f9ddc7b5a01bf98e53e5", kill_on_drop: false }`
[INFO] [stderr]     Checking predicates-tree v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:41
[INFO] [stdout]    |
[INFO] [stdout] 30 | type CaseTreeInner = treeline::Tree<Box<fmt::Display>>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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/lib.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let root: Box<fmt::Display> = Box::new(item.to_string());
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let root: Box<fmt::Display> = Box::new(item.to_string());
[INFO] [stdout]    |                       ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:41
[INFO] [stdout]    |
[INFO] [stdout] 30 | type CaseTreeInner = treeline::Tree<Box<fmt::Display>>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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/lib.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let root: Box<fmt::Display> = Box::new(item.to_string());
[INFO] [stdout]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let root: Box<fmt::Display> = Box::new(item.to_string());
[INFO] [stdout]    |                       ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[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 0.48s
[INFO] running `Command { std: "docker" "inspect" "d7b14674a1c43fe3bc2406ce2e2116bb0931331e56b6f9ddc7b5a01bf98e53e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b14674a1c43fe3bc2406ce2e2116bb0931331e56b6f9ddc7b5a01bf98e53e5", kill_on_drop: false }`
[INFO] [stdout] d7b14674a1c43fe3bc2406ce2e2116bb0931331e56b6f9ddc7b5a01bf98e53e5