[INFO] fetching crate prty_bitgraph 0.1.1...
[INFO] testing prty_bitgraph-0.1.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate prty_bitgraph 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate prty_bitgraph 0.1.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate prty_bitgraph 0.1.1
[INFO] finished tweaking crates.io crate prty_bitgraph 0.1.1
[INFO] tweaked toml for crates.io crate prty_bitgraph 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1f180585641192e399ba1e0e07f2ccc66176c02897650f80cc07da6ce19536e
[INFO] running `"docker" "start" "-a" "d1f180585641192e399ba1e0e07f2ccc66176c02897650f80cc07da6ce19536e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling prty_fmtmodifier v0.1.1
[INFO] [stderr]    Compiling prty_bitgraph v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(vec_remove_item)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/bitgraph.rs:20:28
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Node>`
[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/graph/bitgraph.rs:31:65
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn dependents_mut<'a>(&'a mut self, node: usize) -> Box<'a + Iterator<Item = (usize, &'a mut bool)>> {
[INFO] [stderr]    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = (usize, &'a mut bool)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/sparsegraph.rs:29:28
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/sparsegraph.rs:66:57
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/sparsegraph.rs:69:53
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/sparsegraph.rs:78:87
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/transform.rs:33:28
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/transform.rs:63:57
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/transform.rs:67:53
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/transform.rs:79:14
[INFO] [stderr]    |
[INFO] [stderr] 79 |     ) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/graph/transform.rs:105:28
[INFO] [stderr]     |
[INFO] [stderr] 105 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>> {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/graph/transform.rs:133:57
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/graph/transform.rs:136:53
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn nodes(&self) -> Box<Iterator<Item = Self::Node>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:55:57
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn iter_from<'a>(&'a self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:58:53
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn iter_to<'a>(&'a self, to: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:67:67
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn iter_from_drain<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph/mod.rs:74:87
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn drain_from_and_clear_all_to_drained<'a>(&'a mut self, from: Self::Node) -> Box<'a + Iterator<Item = Self::Node>> {
[INFO] [stderr]    |                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + Iterator<Item = Self::Node>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `prty_bitgraph`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d1f180585641192e399ba1e0e07f2ccc66176c02897650f80cc07da6ce19536e"`
[INFO] running `"docker" "rm" "-f" "d1f180585641192e399ba1e0e07f2ccc66176c02897650f80cc07da6ce19536e"`
[INFO] [stdout] d1f180585641192e399ba1e0e07f2ccc66176c02897650f80cc07da6ce19536e