[INFO] cloning repository https://github.com/dclstn/twitch-websocket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dclstn/twitch-websocket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclstn%2Ftwitch-websocket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclstn%2Ftwitch-websocket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 067a831f7d51975a8aa0a01398022f2000ccb5fd
[INFO] checking dclstn/twitch-websocket against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclstn%2Ftwitch-websocket" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dclstn/twitch-websocket on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dclstn/twitch-websocket
[INFO] finished tweaking git repo https://github.com/dclstn/twitch-websocket
[INFO] tweaked toml for git repo https://github.com/dclstn/twitch-websocket written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dclstn/twitch-websocket already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tungstenite v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a0c06a43510ff9769260552c66ddcbbc9186bf041a37b95bffc453553938702
[INFO] running `Command { std: "docker" "start" "-a" "1a0c06a43510ff9769260552c66ddcbbc9186bf041a37b95bffc453553938702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a0c06a43510ff9769260552c66ddcbbc9186bf041a37b95bffc453553938702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0c06a43510ff9769260552c66ddcbbc9186bf041a37b95bffc453553938702", kill_on_drop: false }`
[INFO] [stdout] 1a0c06a43510ff9769260552c66ddcbbc9186bf041a37b95bffc453553938702
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8def925fa3830686242c655a726ab2768857f24652dc524bd9872a60819f0690
[INFO] running `Command { std: "docker" "start" "-a" "8def925fa3830686242c655a726ab2768857f24652dc524bd9872a60819f0690", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tungstenite v0.16.0
[INFO] [stderr]     Checking ws_twitch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `PART` and `PRIVMSG` are never constructed
[INFO] [stdout]   --> src/twitch.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Command {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |   PART(String),
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 18 |   PRIVMSG(String),
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `PART` and `PRIVMSG` are never constructed
[INFO] [stdout]   --> src/twitch.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Command {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |   PART(String),
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 18 |   PRIVMSG(String),
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.36s
[INFO] running `Command { std: "docker" "inspect" "8def925fa3830686242c655a726ab2768857f24652dc524bd9872a60819f0690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8def925fa3830686242c655a726ab2768857f24652dc524bd9872a60819f0690", kill_on_drop: false }`
[INFO] [stdout] 8def925fa3830686242c655a726ab2768857f24652dc524bd9872a60819f0690
[INFO] checking dclstn/twitch-websocket against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclstn%2Ftwitch-websocket" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dclstn/twitch-websocket on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dclstn/twitch-websocket
[INFO] finished tweaking git repo https://github.com/dclstn/twitch-websocket
[INFO] tweaked toml for git repo https://github.com/dclstn/twitch-websocket written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dclstn/twitch-websocket already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 721fe626920fbf7874eaeb7a5229f1ec93e06f6706d5bc6efbc24d191f85808e
[INFO] running `Command { std: "docker" "start" "-a" "721fe626920fbf7874eaeb7a5229f1ec93e06f6706d5bc6efbc24d191f85808e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "721fe626920fbf7874eaeb7a5229f1ec93e06f6706d5bc6efbc24d191f85808e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "721fe626920fbf7874eaeb7a5229f1ec93e06f6706d5bc6efbc24d191f85808e", kill_on_drop: false }`
[INFO] [stdout] 721fe626920fbf7874eaeb7a5229f1ec93e06f6706d5bc6efbc24d191f85808e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 916ce71bc0ebd01f7c7bded7bdf88105cc9ae2e5c611e2072fcf11ea805e0a07
[INFO] running `Command { std: "docker" "start" "-a" "916ce71bc0ebd01f7c7bded7bdf88105cc9ae2e5c611e2072fcf11ea805e0a07", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tungstenite v0.16.0
[INFO] [stderr]     Checking ws_twitch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `PART` and `PRIVMSG` are never constructed
[INFO] [stdout]   --> src/twitch.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Command {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |   PART(String),
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 18 |   PRIVMSG(String),
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `PART` and `PRIVMSG` are never constructed
[INFO] [stdout]   --> src/twitch.rs:17:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Command {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |   PART(String),
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 18 |   PRIVMSG(String),
[INFO] [stdout]    |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.35s
[INFO] running `Command { std: "docker" "inspect" "916ce71bc0ebd01f7c7bded7bdf88105cc9ae2e5c611e2072fcf11ea805e0a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "916ce71bc0ebd01f7c7bded7bdf88105cc9ae2e5c611e2072fcf11ea805e0a07", kill_on_drop: false }`
[INFO] [stdout] 916ce71bc0ebd01f7c7bded7bdf88105cc9ae2e5c611e2072fcf11ea805e0a07