[INFO] fetching crate rerust 0.1.0...
[INFO] building rerust-0.1.0 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate rerust 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rerust 0.1.0 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rerust 0.1.0
[INFO] finished tweaking crates.io crate rerust 0.1.0
[INFO] tweaked toml for crates.io crate rerust 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate rerust 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-signals v0.3.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", 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] 739558838bcd2905aa9c4c5edabe2c33b0b915b50f4b77700f8f2ccbef6917d6
[INFO] running `Command { std: "docker" "start" "-a" "739558838bcd2905aa9c4c5edabe2c33b0b915b50f4b77700f8f2ccbef6917d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "739558838bcd2905aa9c4c5edabe2c33b0b915b50f4b77700f8f2ccbef6917d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "739558838bcd2905aa9c4c5edabe2c33b0b915b50f4b77700f8f2ccbef6917d6", kill_on_drop: false }`
[INFO] [stdout] 739558838bcd2905aa9c4c5edabe2c33b0b915b50f4b77700f8f2ccbef6917d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bb94a5b04e450ab4ff89e306f0d4b4191528da07d43f918fdbf73877528d072
[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" "3bb94a5b04e450ab4ff89e306f0d4b4191528da07d43f918fdbf73877528d072", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling if_chain v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling skeptic v0.6.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling carboxyl v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling enum_dispatch v0.3.5
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.7
[INFO] [stderr]    Compiling futures-executor v0.3.7
[INFO] [stderr]    Compiling futures-signals v0.3.15
[INFO] [stderr]    Compiling futures v0.3.7
[INFO] [stderr]    Compiling rerust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `petgraph::dot::Dot`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use petgraph::dot::Dot;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "3bb94a5b04e450ab4ff89e306f0d4b4191528da07d43f918fdbf73877528d072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb94a5b04e450ab4ff89e306f0d4b4191528da07d43f918fdbf73877528d072", kill_on_drop: false }`
[INFO] [stdout] 3bb94a5b04e450ab4ff89e306f0d4b4191528da07d43f918fdbf73877528d072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", 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] 680d62f45a342af3610124c91a7052d4adfc6e9e5d68613e3fe50e4408e67ff0
[INFO] running `Command { std: "docker" "start" "-a" "680d62f45a342af3610124c91a7052d4adfc6e9e5d68613e3fe50e4408e67ff0", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling plotters v0.3.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stdout] warning: unused import: `petgraph::dot::Dot`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use petgraph::dot::Dot;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling criterion v0.3.4
[INFO] [stderr]    Compiling rerust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stream`
[INFO] [stdout]  --> examples/carboxyl-chat.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use carboxyl::{Signal, Sink, Stream};
[INFO] [stdout]   |                              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index_c`
[INFO] [stdout]   --> examples/carboxyl-chat.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let index_c = index.clone();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rerust::rerust_gen`
[INFO] [stdout]  --> examples/gentest.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use rerust::rerust_gen;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^ no `rerust_gen` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selected_room`
[INFO] [stdout]   --> examples/carboxyl-chat.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let selected_room = room_list.map(move |room_list| {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selected_room`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `executor::ThreadPool`
[INFO] [stdout]  --> examples/futures-chat.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use executor::ThreadPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `pin_mut`, `stream::Peekable`, `stream`
[INFO] [stdout]  --> examples/futures-chat.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::{executor, future, pin_mut, stream, stream::Peekable, FutureExt, StreamExt};
[INFO] [stdout]   |                                 ^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::pin::Pin`
[INFO] [stdout]  --> examples/futures-chat.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::pin::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FutureExt`
[INFO] [stdout]  --> examples/futures-chat.rs:3:68
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::{executor, future, pin_mut, stream, stream::Peekable, FutureExt, StreamExt};
[INFO] [stdout]   |                                                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamExt`
[INFO] [stdout]  --> examples/futures-chat.rs:3:79
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::{executor, future, pin_mut, stream, stream::Peekable, FutureExt, StreamExt};
[INFO] [stdout]   |                                                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `alloc` in the list of imported crates
[INFO] [stdout]    --> examples/gentest.rs:530:29
[INFO] [stdout]     |
[INFO] [stdout] 530 |                 let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
[INFO] [stdout]     |                             ^^^^^ could not find `alloc` in the list of imported crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardindex` in this scope
[INFO] [stdout]    --> examples/gentest.rs:172:23
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct Slots {
[INFO] [stdout]     |                 - help: you might be missing a type parameter: `<Cardindex>`
[INFO] [stdout] 172 |         index: Option<Cardindex>,
[INFO] [stdout]     |                       ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardroom2` in this scope
[INFO] [stdout]    --> examples/gentest.rs:173:23
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct Slots {
[INFO] [stdout]     |                 - help: you might be missing a type parameter: `<Cardroom2>`
[INFO] [stdout] 172 |         index: Option<Cardindex>,
[INFO] [stdout] 173 |         room2: Option<Cardroom2>,
[INFO] [stdout]     |                       ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardtext` in this scope
[INFO] [stdout]    --> examples/gentest.rs:174:22
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct Slots {
[INFO] [stdout]     |                 - help: you might be missing a type parameter: `<Cardtext>`
[INFO] [stdout] ...
[INFO] [stdout] 174 |         text: Option<Cardtext>,
[INFO] [stdout]     |                      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardname` in this scope
[INFO] [stdout]    --> examples/gentest.rs:175:22
[INFO] [stdout]     |
[INFO] [stdout] 171 |     struct Slots {
[INFO] [stdout]     |                 - help: you might be missing a type parameter: `<Cardname>`
[INFO] [stdout] ...
[INFO] [stdout] 175 |         name: Option<Cardname>,
[INFO] [stdout]     |                      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardindex` in this scope
[INFO] [stdout]    --> examples/gentest.rs:203:44
[INFO] [stdout]     |
[INFO] [stdout] 203 |         pub fn push_index(&mut self, card: Cardindex) {
[INFO] [stdout]     |                                            ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardindex` in this scope
[INFO] [stdout]    --> examples/gentest.rs:206:48
[INFO] [stdout]     |
[INFO] [stdout] 202 |     impl Sink {
[INFO] [stdout]     |         - help: you might be missing a type parameter: `<Cardindex>`
[INFO] [stdout] ...
[INFO] [stdout] 206 |         pub fn pull_index(&mut self) -> Option<Cardindex> {
[INFO] [stdout]     |                                                ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardroom2` in this scope
[INFO] [stdout]    --> examples/gentest.rs:214:44
[INFO] [stdout]     |
[INFO] [stdout] 214 |         pub fn push_room2(&mut self, card: Cardroom2) {
[INFO] [stdout]     |                                            ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardroom2` in this scope
[INFO] [stdout]    --> examples/gentest.rs:217:48
[INFO] [stdout]     |
[INFO] [stdout] 202 |     impl Sink {
[INFO] [stdout]     |         - help: you might be missing a type parameter: `<Cardroom2>`
[INFO] [stdout] ...
[INFO] [stdout] 217 |         pub fn pull_room2(&mut self) -> Option<Cardroom2> {
[INFO] [stdout]     |                                                ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardtext` in this scope
[INFO] [stdout]    --> examples/gentest.rs:225:43
[INFO] [stdout]     |
[INFO] [stdout] 225 |         pub fn push_text(&mut self, card: Cardtext) {
[INFO] [stdout]     |                                           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardtext` in this scope
[INFO] [stdout]    --> examples/gentest.rs:228:47
[INFO] [stdout]     |
[INFO] [stdout] 202 |     impl Sink {
[INFO] [stdout]     |         - help: you might be missing a type parameter: `<Cardtext>`
[INFO] [stdout] ...
[INFO] [stdout] 228 |         pub fn pull_text(&mut self) -> Option<Cardtext> {
[INFO] [stdout]     |                                               ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardname` in this scope
[INFO] [stdout]    --> examples/gentest.rs:236:43
[INFO] [stdout]     |
[INFO] [stdout] 236 |         pub fn push_name(&mut self, card: Cardname) {
[INFO] [stdout]     |                                           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cardname` in this scope
[INFO] [stdout]    --> examples/gentest.rs:239:47
[INFO] [stdout]     |
[INFO] [stdout] 202 |     impl Sink {
[INFO] [stdout]     |         - help: you might be missing a type parameter: `<Cardname>`
[INFO] [stdout] ...
[INFO] [stdout] 239 |         pub fn pull_name(&mut self) -> Option<Cardname> {
[INFO] [stdout]     |                                               ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> examples/gentest.rs:555:29
[INFO] [stdout]     |
[INFO] [stdout] 555 |             <[_]>::into_vec(box [room1, room2])
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout]     = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> examples/gentest.rs:572:45
[INFO] [stdout]     |
[INFO] [stdout] 572 |                   var_5: Some(<[_]>::into_vec(box [String::from(
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 573 | |                     "Me: a constant message",
[INFO] [stdout] 574 | |                 )])),
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout]     = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `rc::Rc`, `sync::mpsc::Sender`
[INFO] [stdout]  --> examples/gentest.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, rc::Rc, sync::mpsc::Sender};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> examples/gentest.rs:262:16
[INFO] [stdout]     |
[INFO] [stdout] 262 |               if (false
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 263 | |                 || self.slots.index.is_some()
[INFO] [stdout] 264 | |                 || input.var_6.is_none()
[INFO] [stdout] 265 | |                 || self.slots.room2.is_some()
[INFO] [stdout] ...   |
[INFO] [stdout] 269 | |                 || self.slots.name.is_some()
[INFO] [stdout] 270 | |                 || input.var_0.is_none())
[INFO] [stdout]     | |_________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 262 |             if false
[INFO] [stdout] 263 |                 || self.slots.index.is_some()
[INFO] [stdout] 264 |                 || input.var_6.is_none()
[INFO] [stdout] 265 |                 || self.slots.room2.is_some()
[INFO] [stdout] 266 |                 || input.var_5.is_none()
[INFO] [stdout] 267 |                 || self.slots.text.is_some()
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'libstd_sys_internals': used by the panic! macro
[INFO] [stdout]    --> examples/gentest.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |                     ::std::rt::begin_panic("Slot empty for one input")
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(libstd_sys_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:372:33
[INFO] [stdout]     |
[INFO] [stdout] 372 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:388:33
[INFO] [stdout]     |
[INFO] [stdout] 388 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:404:33
[INFO] [stdout]     |
[INFO] [stdout] 404 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:420:33
[INFO] [stdout]     |
[INFO] [stdout] 420 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:436:33
[INFO] [stdout]     |
[INFO] [stdout] 436 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:452:33
[INFO] [stdout]     |
[INFO] [stdout] 452 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:468:33
[INFO] [stdout]     |
[INFO] [stdout] 468 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'core_panic': internal details of the implementation of the `panic!` and related macros
[INFO] [stdout]    --> examples/gentest.rs:484:33
[INFO] [stdout]     |
[INFO] [stdout] 484 | ...                   ::core::panicking::panic("internal error: entered unreachable code")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(core_panic)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'fmt_internals': internal to format_args!
[INFO] [stdout]    --> examples/gentest.rs:534:29
[INFO] [stdout]     |
[INFO] [stdout] 534 | ...                   ::core::fmt::ArgumentV1::new(arg0, ::core::fmt::Display::fmt),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(fmt_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'fmt_internals': internal to format_args!
[INFO] [stdout]    --> examples/gentest.rs:535:29
[INFO] [stdout]     |
[INFO] [stdout] 535 | ...                   ::core::fmt::ArgumentV1::new(arg1, ::core::fmt::Display::fmt),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(fmt_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> examples/gentest.rs:183:24
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 index: ::core::default::Default::default(),
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: Default`
[INFO] [stdout]     = note: required by `std::default::Default::default`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `petgraph::dot::Dot`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use petgraph::dot::Dot;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'fmt_internals': internal to format_args!
[INFO] [stdout]    --> examples/gentest.rs:530:48
[INFO] [stdout]     |
[INFO] [stdout] 530 |                 let res = ::alloc::fmt::format(::core::fmt::Arguments::new_v1(
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(fmt_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'fmt_internals': internal to format_args!
[INFO] [stdout]    --> examples/gentest.rs:534:29
[INFO] [stdout]     |
[INFO] [stdout] 534 | ...                   ::core::fmt::ArgumentV1::new(arg0, ::core::fmt::Display::fmt),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(fmt_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'fmt_internals': internal to format_args!
[INFO] [stdout]    --> examples/gentest.rs:535:29
[INFO] [stdout]     |
[INFO] [stdout] 535 | ...                   ::core::fmt::ArgumentV1::new(arg1, ::core::fmt::Display::fmt),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(fmt_internals)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 31 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0283, E0412, E0432, E0433, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rerust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "680d62f45a342af3610124c91a7052d4adfc6e9e5d68613e3fe50e4408e67ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "680d62f45a342af3610124c91a7052d4adfc6e9e5d68613e3fe50e4408e67ff0", kill_on_drop: false }`
[INFO] [stdout] 680d62f45a342af3610124c91a7052d4adfc6e9e5d68613e3fe50e4408e67ff0
