[INFO] cloning repository https://github.com/afnanenayet/twitter-stream
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/afnanenayet/twitter-stream" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafnanenayet%2Ftwitter-stream", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafnanenayet%2Ftwitter-stream'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce202fa5f97c3d30c6ccc616f5dec35941828fb3
[INFO] checking afnanenayet/twitter-stream against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fafnanenayet%2Ftwitter-stream" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/afnanenayet/twitter-stream 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/afnanenayet/twitter-stream
[INFO] finished tweaking git repo https://github.com/afnanenayet/twitter-stream
[INFO] tweaked toml for git repo https://github.com/afnanenayet/twitter-stream written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/afnanenayet/twitter-stream 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 2b78c2fd7613b695b303f54d1a8987891b397cf361f00278981b06d27c44153a
[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" "2b78c2fd7613b695b303f54d1a8987891b397cf361f00278981b06d27c44153a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b78c2fd7613b695b303f54d1a8987891b397cf361f00278981b06d27c44153a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b78c2fd7613b695b303f54d1a8987891b397cf361f00278981b06d27c44153a", kill_on_drop: false }`
[INFO] [stdout] 2b78c2fd7613b695b303f54d1a8987891b397cf361f00278981b06d27c44153a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 26862dba84998ae712bb0fae1a053130b462b3450227e2b623842246813c3859
[INFO] running `Command { std: "docker" "start" "-a" "26862dba84998ae712bb0fae1a053130b462b3450227e2b623842246813c3859", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking smallvec v0.6.10
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[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking itoa v0.3.4
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[INFO] [stderr]     Checking aho-corasick v0.6.10
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[INFO] [stderr]     Checking sentiment v0.1.1
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[INFO] [stderr]    Compiling proc-macro-error v0.2.6
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[INFO] [stdout] warning: unused import: `sink::Sink`
[INFO] [stdout]  --> src/server.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sink::Sink,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/server.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnboundedReceiver`
[INFO] [stdout]  --> src/server.rs:9:44
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sink::Sink`
[INFO] [stdout]  --> src/server.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sink::Sink,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/server.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnboundedReceiver`
[INFO] [stdout]  --> src/server.rs:9:44
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender};
[INFO] [stdout]   |                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/server.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 78  | /         loop {
[INFO] [stdout] 79  | |             // We can't use the `try_ready` macro because it assumes that the Item and Error associated
[INFO] [stdout] 80  | |             // types are identical for the stream that's consumed and the current future
[INFO] [stdout] 81  | |             let value = match self.stream.poll() {
[INFO] [stdout] ...   |
[INFO] [stdout] 96  | |             };
[INFO] [stdout] 97  | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 102 |           unreachable!();
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/server.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 78  | /         loop {
[INFO] [stdout] 79  | |             // We can't use the `try_ready` macro because it assumes that the Item and Error associated
[INFO] [stdout] 80  | |             // types are identical for the stream that's consumed and the current future
[INFO] [stdout] 81  | |             let value = match self.stream.poll() {
[INFO] [stdout] ...   |
[INFO] [stdout] 96  | |             };
[INFO] [stdout] 97  | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 102 |           unreachable!();
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scores`
[INFO] [stdout]   --> src/server.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     scores: ScoreSeries,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scores`
[INFO] [stdout]   --> src/server.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     scores: ScoreSeries,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "26862dba84998ae712bb0fae1a053130b462b3450227e2b623842246813c3859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26862dba84998ae712bb0fae1a053130b462b3450227e2b623842246813c3859", kill_on_drop: false }`
[INFO] [stdout] 26862dba84998ae712bb0fae1a053130b462b3450227e2b623842246813c3859