[INFO] cloning repository https://github.com/robn/twister
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robn/twister" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobn%2Ftwister", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobn%2Ftwister'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6587a718fe5218b12350e345447c2cf179fb615
[INFO] checking robn/twister against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobn%2Ftwister" "/workspace/builds/worker-56/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-56/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robn/twister on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robn/twister
[INFO] finished tweaking git repo https://github.com/robn/twister
[INFO] tweaked toml for git repo https://github.com/robn/twister written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate git repo https://github.com/robn/twister already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bimap v0.6.0
[INFO] [stderr]   Downloaded hecs v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e8239c9d7e66b30b4f86c12cd5fdc35abbd7b5886d8e5d4bc7750df697d7563
[INFO] running `Command { std: "docker" "start" "-a" "4e8239c9d7e66b30b4f86c12cd5fdc35abbd7b5886d8e5d4bc7750df697d7563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e8239c9d7e66b30b4f86c12cd5fdc35abbd7b5886d8e5d4bc7750df697d7563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e8239c9d7e66b30b4f86c12cd5fdc35abbd7b5886d8e5d4bc7750df697d7563", kill_on_drop: false }`
[INFO] [stdout] 4e8239c9d7e66b30b4f86c12cd5fdc35abbd7b5886d8e5d4bc7750df697d7563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d62e0e8be6e01113b9f346d2f4f418734c73fac680d317a6bf94c2c746c374d5
[INFO] running `Command { std: "docker" "start" "-a" "d62e0e8be6e01113b9f346d2f4f418734c73fac680d317a6bf94c2c746c374d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bimap v0.6.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking hecs v0.3.2
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking twister v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `hecs`
[INFO] [stdout]  --> src/connection.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hecs::*;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hecs`
[INFO] [stdout]  --> src/connection.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hecs::*;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/action.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         _ => unimplemented!()
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]    --> src/server.rs:159:35
[INFO] [stdout]     |
[INFO] [stdout] 159 |                   if let Some((_, entity)) = self.token_entity.remove_by_left(&token) {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/server.rs:195:23
[INFO] [stdout]     |
[INFO] [stdout] 195 |   fn apply(&mut self, g: &mut Global, actions: &Vec<Action>) {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actions`
[INFO] [stdout]    --> src/server.rs:195:39
[INFO] [stdout]     |
[INFO] [stdout] 195 |   fn apply(&mut self, g: &mut Global, actions: &Vec<Action>) {
[INFO] [stdout]     |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]   --> src/channel.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     .for_each(|(entity, io)| {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/channel.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     .for_each(|(entity, c)| {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/action.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         _ => unimplemented!()
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Offline`
[INFO] [stdout]   --> src/component.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   Offline,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]    --> src/server.rs:159:35
[INFO] [stdout]     |
[INFO] [stdout] 159 |                   if let Some((_, entity)) = self.token_entity.remove_by_left(&token) {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Disconnected`
[INFO] [stdout]   --> src/component.rs:20:3
[INFO] [stdout]    |
[INFO] [stdout] 20 |   Disconnected,
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Join`
[INFO] [stdout]   --> src/component.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |   Join(Entity, Entity),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/server.rs:195:23
[INFO] [stdout]     |
[INFO] [stdout] 195 |   fn apply(&mut self, g: &mut Global, actions: &Vec<Action>) {
[INFO] [stdout]     |                       ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ChannelMessage`
[INFO] [stdout]  --> src/channel.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum ChannelMessage {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update`
[INFO] [stdout]   --> src/channel.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn update(g: &mut Global) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actions`
[INFO] [stdout]    --> src/server.rs:195:39
[INFO] [stdout]     |
[INFO] [stdout] 195 |   fn apply(&mut self, g: &mut Global, actions: &Vec<Action>) {
[INFO] [stdout]     |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entity`
[INFO] [stdout]   --> src/channel.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     .for_each(|(entity, io)| {
[INFO] [stdout]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_entity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/channel.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     .for_each(|(entity, c)| {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Offline`
[INFO] [stdout]   --> src/component.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   Offline,
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Disconnected`
[INFO] [stdout]   --> src/component.rs:20:3
[INFO] [stdout]    |
[INFO] [stdout] 20 |   Disconnected,
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Join`
[INFO] [stdout]   --> src/component.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |   Join(Entity, Entity),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ChannelMessage`
[INFO] [stdout]  --> src/channel.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum ChannelMessage {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update`
[INFO] [stdout]   --> src/channel.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn update(g: &mut Global) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `Command { std: "docker" "inspect" "d62e0e8be6e01113b9f346d2f4f418734c73fac680d317a6bf94c2c746c374d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d62e0e8be6e01113b9f346d2f4f418734c73fac680d317a6bf94c2c746c374d5", kill_on_drop: false }`
[INFO] [stdout] d62e0e8be6e01113b9f346d2f4f418734c73fac680d317a6bf94c2c746c374d5