[INFO] fetching crate data_tracker 0.1.0...
[INFO] checking data_tracker-0.1.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate data_tracker 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate data_tracker 0.1.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate data_tracker 0.1.0
[INFO] finished tweaking crates.io crate data_tracker 0.1.0
[INFO] tweaked toml for crates.io crate data_tracker 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c145d8aa30f6c63a4bfdcf3ecea0e1cdc3b09dc50565187984246bbd46e3b69
[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" "9c145d8aa30f6c63a4bfdcf3ecea0e1cdc3b09dc50565187984246bbd46e3b69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c145d8aa30f6c63a4bfdcf3ecea0e1cdc3b09dc50565187984246bbd46e3b69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c145d8aa30f6c63a4bfdcf3ecea0e1cdc3b09dc50565187984246bbd46e3b69", kill_on_drop: false }`
[INFO] [stdout] 9c145d8aa30f6c63a4bfdcf3ecea0e1cdc3b09dc50565187984246bbd46e3b69
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1893aff20e621eef677170f15b9422b5a527a36aa744980b0007deac5bc1f56
[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" "f1893aff20e621eef677170f15b9422b5a527a36aa744980b0007deac5bc1f56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking data_tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:114:28
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn_map: HashMap<K, Box<OnChanged<T>>>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[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:121:47
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn add_listener(&mut self, key: K, f: Box<OnChanged<T>>) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:121:76
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn add_listener(&mut self, key: K, f: Box<OnChanged<T>>) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:124:58
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn remove_listener(&mut self, key: &K) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:229:39
[INFO] [stdout]     |
[INFO] [stdout] 229 |                         callback: Box<OnChanged<T>>)
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:230:39
[INFO] [stdout]     |
[INFO] [stdout] 230 |                         -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:238:62
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn remove_listener(&mut self, key: &K) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:114:28
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn_map: HashMap<K, Box<OnChanged<T>>>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[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:121:47
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn add_listener(&mut self, key: K, f: Box<OnChanged<T>>) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:121:76
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn add_listener(&mut self, key: K, f: Box<OnChanged<T>>) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:124:58
[INFO] [stdout]     |
[INFO] [stdout] 124 |     fn remove_listener(&mut self, key: &K) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:229:39
[INFO] [stdout]     |
[INFO] [stdout] 229 |                         callback: Box<OnChanged<T>>)
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:230:39
[INFO] [stdout]     |
[INFO] [stdout] 230 |                         -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:238:62
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn remove_listener(&mut self, key: &K) -> Option<Box<OnChanged<T>>> {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn OnChanged<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "f1893aff20e621eef677170f15b9422b5a527a36aa744980b0007deac5bc1f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1893aff20e621eef677170f15b9422b5a527a36aa744980b0007deac5bc1f56", kill_on_drop: false }`
[INFO] [stdout] f1893aff20e621eef677170f15b9422b5a527a36aa744980b0007deac5bc1f56