[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 absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclstn%2Ftwitch-websocket" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-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-4-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]  Downloading crates ...
[INFO] [stderr]   Downloaded tungstenite v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7628f95909b87e3a1d67932d60a1f476a03163cb344ed01a4618ab248195637b
[INFO] running `Command { std: "docker" "start" "-a" "7628f95909b87e3a1d67932d60a1f476a03163cb344ed01a4618ab248195637b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7628f95909b87e3a1d67932d60a1f476a03163cb344ed01a4618ab248195637b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7628f95909b87e3a1d67932d60a1f476a03163cb344ed01a4618ab248195637b", kill_on_drop: false }`
[INFO] [stdout] 7628f95909b87e3a1d67932d60a1f476a03163cb344ed01a4618ab248195637b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 71088be391914f3f7f86eb52a92e53eba51506b0de28beb24cdba38b23daaf03
[INFO] running `Command { std: "docker" "start" "-a" "71088be391914f3f7f86eb52a92e53eba51506b0de28beb24cdba38b23daaf03", 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 syn v1.0.91
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking rand v0.8.5
[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 8.15s
[INFO] running `Command { std: "docker" "inspect" "71088be391914f3f7f86eb52a92e53eba51506b0de28beb24cdba38b23daaf03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71088be391914f3f7f86eb52a92e53eba51506b0de28beb24cdba38b23daaf03", kill_on_drop: false }`
[INFO] [stdout] 71088be391914f3f7f86eb52a92e53eba51506b0de28beb24cdba38b23daaf03
[INFO] checking dclstn/twitch-websocket against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclstn%2Ftwitch-websocket" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dclstn/twitch-websocket on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8497e0408f3554e03fe6db4feb033079e105ec2ed373c9bbb75d219c32fa2291
[INFO] running `Command { std: "docker" "start" "-a" "8497e0408f3554e03fe6db4feb033079e105ec2ed373c9bbb75d219c32fa2291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8497e0408f3554e03fe6db4feb033079e105ec2ed373c9bbb75d219c32fa2291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8497e0408f3554e03fe6db4feb033079e105ec2ed373c9bbb75d219c32fa2291", kill_on_drop: false }`
[INFO] [stdout] 8497e0408f3554e03fe6db4feb033079e105ec2ed373c9bbb75d219c32fa2291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd7d0c71687d0b785fb003c003ebafde03d13afd05b60edcfce4948d13a11392
[INFO] running `Command { std: "docker" "start" "-a" "dd7d0c71687d0b785fb003c003ebafde03d13afd05b60edcfce4948d13a11392", 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 syn v1.0.91
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[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 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 9.80s
[INFO] running `Command { std: "docker" "inspect" "dd7d0c71687d0b785fb003c003ebafde03d13afd05b60edcfce4948d13a11392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7d0c71687d0b785fb003c003ebafde03d13afd05b60edcfce4948d13a11392", kill_on_drop: false }`
[INFO] [stdout] dd7d0c71687d0b785fb003c003ebafde03d13afd05b60edcfce4948d13a11392