[INFO] updating cached repository https://github.com/zacstewart/comm-gtk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 67b9ad743ac3696cec73c1c1e0c44bd08cc48dc8
[INFO] testing zacstewart/comm-gtk against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacstewart%2Fcomm-gtk" "/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/zacstewart/comm-gtk on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zacstewart/comm-gtk
[INFO] finished tweaking git repo https://github.com/zacstewart/comm-gtk
[INFO] tweaked toml for git repo https://github.com/zacstewart/comm-gtk written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/zacstewart/comm-gtk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1398e58ad4a7deb208735b7212040451241b8ff2028195da19fbbefc4a04216a
[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" "1398e58ad4a7deb208735b7212040451241b8ff2028195da19fbbefc4a04216a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1398e58ad4a7deb208735b7212040451241b8ff2028195da19fbbefc4a04216a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1398e58ad4a7deb208735b7212040451241b8ff2028195da19fbbefc4a04216a", kill_on_drop: false }`
[INFO] [stdout] 1398e58ad4a7deb208735b7212040451241b8ff2028195da19fbbefc4a04216a
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28b16023e45d7eeb8be248aeafd9f09107f4275089fa80c3b5807149cb40c486
[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" "28b16023e45d7eeb8be248aeafd9f09107f4275089fa80c3b5807149cb40c486", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.0
[INFO] [stderr]    Compiling gio v0.3.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.3.0
[INFO] [stderr]    Compiling cairo-rs v0.3.0
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling gdk v0.7.0
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling comm v0.1.0 (https://github.com/zacstewart/comm.git#5d35ca7c)
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling gtk v0.3.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling protobuf v1.4.3
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gio-sys v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.5.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.5.0
[INFO] [stderr]    Compiling pango-sys v0.5.0
[INFO] [stderr]    Compiling gdk-sys v0.5.0
[INFO] [stderr]    Compiling atk-sys v0.5.0
[INFO] [stderr]    Compiling gtk-sys v0.5.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-complex v0.1.42
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling serde_yaml v0.7.3
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling regex v0.2.6
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling num-bigint v0.1.43
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling stun v0.0.2
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling glib v0.4.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling pango v0.3.0
[INFO] [stderr]    Compiling comm-gtk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:149:39
[INFO] [stdout]     |
[INFO] [stdout] 149 |     observers: ObserverSet<Rc<RefCell<ConnectionObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[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/models.rs:249:28
[INFO] [stdout]     |
[INFO] [stdout] 249 | impl Observable<Rc<RefCell<ConnectionObserver>>> for Connection {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:250:60
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConnectionObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:265:39
[INFO] [stdout]     |
[INFO] [stdout] 265 |     observers: ObserverSet<Rc<RefCell<MessageObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:311:28
[INFO] [stdout]     |
[INFO] [stdout] 311 | impl Observable<Rc<RefCell<MessageObserver>>> for Message {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:312:60
[INFO] [stdout]     |
[INFO] [stdout] 312 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<MessageObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:322:39
[INFO] [stdout]     |
[INFO] [stdout] 322 |     observers: ObserverSet<Rc<RefCell<ConversationObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:394:28
[INFO] [stdout]     |
[INFO] [stdout] 394 | impl Observable<Rc<RefCell<ConversationObserver>>> for Conversation {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:395:60
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConversationObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:403:39
[INFO] [stdout]     |
[INFO] [stdout] 403 |     observers: ObserverSet<Rc<RefCell<ConversationListObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:480:28
[INFO] [stdout]     |
[INFO] [stdout] 480 | impl Observable<Rc<RefCell<ConversationListObserver>>> for ConversationList {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:481:60
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConversationListObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 24s
[INFO] running `Command { std: "docker" "inspect" "28b16023e45d7eeb8be248aeafd9f09107f4275089fa80c3b5807149cb40c486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28b16023e45d7eeb8be248aeafd9f09107f4275089fa80c3b5807149cb40c486", kill_on_drop: false }`
[INFO] [stdout] 28b16023e45d7eeb8be248aeafd9f09107f4275089fa80c3b5807149cb40c486
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aceab29d7cf14ea61c6b6c9b8ff3a18483fda9bdf0d0d2108377542fc08f2096
[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" "aceab29d7cf14ea61c6b6c9b8ff3a18483fda9bdf0d0d2108377542fc08f2096", kill_on_drop: false }`
[INFO] [stderr]    Compiling comm-gtk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:149:39
[INFO] [stdout]     |
[INFO] [stdout] 149 |     observers: ObserverSet<Rc<RefCell<ConnectionObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[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/models.rs:249:28
[INFO] [stdout]     |
[INFO] [stdout] 249 | impl Observable<Rc<RefCell<ConnectionObserver>>> for Connection {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:250:60
[INFO] [stdout]     |
[INFO] [stdout] 250 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConnectionObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:265:39
[INFO] [stdout]     |
[INFO] [stdout] 265 |     observers: ObserverSet<Rc<RefCell<MessageObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:311:28
[INFO] [stdout]     |
[INFO] [stdout] 311 | impl Observable<Rc<RefCell<MessageObserver>>> for Message {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:312:60
[INFO] [stdout]     |
[INFO] [stdout] 312 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<MessageObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:322:39
[INFO] [stdout]     |
[INFO] [stdout] 322 |     observers: ObserverSet<Rc<RefCell<ConversationObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:394:28
[INFO] [stdout]     |
[INFO] [stdout] 394 | impl Observable<Rc<RefCell<ConversationObserver>>> for Conversation {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:395:60
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConversationObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:403:39
[INFO] [stdout]     |
[INFO] [stdout] 403 |     observers: ObserverSet<Rc<RefCell<ConversationListObserver>>>
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:480:28
[INFO] [stdout]     |
[INFO] [stdout] 480 | impl Observable<Rc<RefCell<ConversationListObserver>>> for ConversationList {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/models.rs:481:60
[INFO] [stdout]     |
[INFO] [stdout] 481 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConversationListObserver>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "aceab29d7cf14ea61c6b6c9b8ff3a18483fda9bdf0d0d2108377542fc08f2096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aceab29d7cf14ea61c6b6c9b8ff3a18483fda9bdf0d0d2108377542fc08f2096", kill_on_drop: false }`
[INFO] [stdout] aceab29d7cf14ea61c6b6c9b8ff3a18483fda9bdf0d0d2108377542fc08f2096
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", 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] d89904e0669ec6e2775e8e6c095ed32580e00835fb23631a45119f96f842be5f
[INFO] running `Command { std: "docker" "start" "-a" "d89904e0669ec6e2775e8e6c095ed32580e00835fb23631a45119f96f842be5f", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:149:39
[INFO] [stderr]     |
[INFO] [stderr] 149 |     observers: ObserverSet<Rc<RefCell<ConnectionObserver>>>
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:249:28
[INFO] [stderr]     |
[INFO] [stderr] 249 | impl Observable<Rc<RefCell<ConnectionObserver>>> for Connection {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:250:60
[INFO] [stderr]     |
[INFO] [stderr] 250 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConnectionObserver>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConnectionObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:265:39
[INFO] [stderr]     |
[INFO] [stderr] 265 |     observers: ObserverSet<Rc<RefCell<MessageObserver>>>
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:311:28
[INFO] [stderr]     |
[INFO] [stderr] 311 | impl Observable<Rc<RefCell<MessageObserver>>> for Message {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:312:60
[INFO] [stderr]     |
[INFO] [stderr] 312 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<MessageObserver>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MessageObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:322:39
[INFO] [stderr]     |
[INFO] [stderr] 322 |     observers: ObserverSet<Rc<RefCell<ConversationObserver>>>
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:394:28
[INFO] [stderr]     |
[INFO] [stderr] 394 | impl Observable<Rc<RefCell<ConversationObserver>>> for Conversation {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:395:60
[INFO] [stderr]     |
[INFO] [stderr] 395 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConversationObserver>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:403:39
[INFO] [stderr]     |
[INFO] [stderr] 403 |     observers: ObserverSet<Rc<RefCell<ConversationListObserver>>>
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:480:28
[INFO] [stderr]     |
[INFO] [stderr] 480 | impl Observable<Rc<RefCell<ConversationListObserver>>> for ConversationList {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/models.rs:481:60
[INFO] [stderr]     |
[INFO] [stderr] 481 |     fn observers(&mut self) -> &mut ObserverSet<Rc<RefCell<ConversationListObserver>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ConversationListObserver`
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/comm_gtk-ad56a472c4e6516c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d89904e0669ec6e2775e8e6c095ed32580e00835fb23631a45119f96f842be5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d89904e0669ec6e2775e8e6c095ed32580e00835fb23631a45119f96f842be5f", kill_on_drop: false }`
[INFO] [stdout] d89904e0669ec6e2775e8e6c095ed32580e00835fb23631a45119f96f842be5f