[INFO] cloning repository https://github.com/obaiyan/barragekyi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/obaiyan/barragekyi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobaiyan%2Fbarragekyi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobaiyan%2Fbarragekyi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7529c813230fe12d778269e21967d77c80bda286
[INFO] checking obaiyan/barragekyi against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobaiyan%2Fbarragekyi" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/obaiyan/barragekyi on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/obaiyan/barragekyi
[INFO] finished tweaking git repo https://github.com/obaiyan/barragekyi
[INFO] tweaked toml for git repo https://github.com/obaiyan/barragekyi written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/obaiyan/barragekyi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e7ba389fc3f9bda8a1adf58f4c08d229e2e064907411892af1c0a72d57a9272
[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" "3e7ba389fc3f9bda8a1adf58f4c08d229e2e064907411892af1c0a72d57a9272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e7ba389fc3f9bda8a1adf58f4c08d229e2e064907411892af1c0a72d57a9272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7ba389fc3f9bda8a1adf58f4c08d229e2e064907411892af1c0a72d57a9272", kill_on_drop: false }`
[INFO] [stdout] 3e7ba389fc3f9bda8a1adf58f4c08d229e2e064907411892af1c0a72d57a9272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba044ff9bd5a6f5d28b83360aa10d46c2d1ee6468361c9b8732b2c1a98cab21f
[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" "ba044ff9bd5a6f5d28b83360aa10d46c2d1ee6468361c9b8732b2c1a98cab21f", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking futures v0.1.17
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking base64 v0.9.0
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.3.20
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking mio v0.6.12
[INFO] [stderr]     Checking mime v0.3.5
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tokio-core v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking hyper v0.11.11
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking barragekyi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]   --> src/client/barrage_client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/client/barrage_client.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client/barrage_client.rs:231:42
[INFO] [stdout]     |
[INFO] [stdout] 231 |     fn send_message(&mut self, message: &Message) {
[INFO] [stdout]     |                                          ^^^^^^^ help: use `dyn`: `dyn Message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]   --> src/client/barrage_client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/client/barrage_client.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client/barrage_client.rs:231:42
[INFO] [stdout]     |
[INFO] [stdout] 231 |     fn send_message(&mut self, message: &Message) {
[INFO] [stdout]     |                                          ^^^^^^^ help: use `dyn`: `dyn Message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]    --> src/client/barrage_client.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let handler = thread::spawn(move || {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/client/barrage_client.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let mut message = receiver.recv().unwrap();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/client/barrage_client.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let mut message = receiver.recv().unwrap();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handler`
[INFO] [stdout]    --> src/client/barrage_client.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let handler = thread::spawn(move || {
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handler`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/client/barrage_client.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let mut message = receiver.recv().unwrap();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/client/barrage_client.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let mut message = receiver.recv().unwrap();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_bytes`
[INFO] [stdout]   --> src/client/barrage_client.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print_bytes(data: &Vec<u8>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_hello`
[INFO] [stdout]   --> src/client/barrage_client.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn print_hello(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_bytes`
[INFO] [stdout]   --> src/client/barrage_client.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print_bytes(data: &Vec<u8>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_hello`
[INFO] [stdout]   --> src/client/barrage_client.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn print_hello(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.45s
[INFO] running `Command { std: "docker" "inspect" "ba044ff9bd5a6f5d28b83360aa10d46c2d1ee6468361c9b8732b2c1a98cab21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba044ff9bd5a6f5d28b83360aa10d46c2d1ee6468361c9b8732b2c1a98cab21f", kill_on_drop: false }`
[INFO] [stdout] ba044ff9bd5a6f5d28b83360aa10d46c2d1ee6468361c9b8732b2c1a98cab21f