[INFO] cloning repository https://github.com/zumepro/grand-toaster-protocol-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zumepro/grand-toaster-protocol-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzumepro%2Fgrand-toaster-protocol-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzumepro%2Fgrand-toaster-protocol-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99700e759cfe36cbc25f0693000cff7c1fa10c70
[INFO] checking zumepro/grand-toaster-protocol-server against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzumepro%2Fgrand-toaster-protocol-server" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zumepro/grand-toaster-protocol-server 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/zumepro/grand-toaster-protocol-server
[INFO] finished tweaking git repo https://github.com/zumepro/grand-toaster-protocol-server
[INFO] tweaked toml for git repo https://github.com/zumepro/grand-toaster-protocol-server written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zumepro/grand-toaster-protocol-server 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 218542a5ccbf3623b1fa55c2d9a09ac75778135a2e6fc43eb5c2f7630232c2e1
[INFO] running `Command { std: "docker" "start" "-a" "218542a5ccbf3623b1fa55c2d9a09ac75778135a2e6fc43eb5c2f7630232c2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "218542a5ccbf3623b1fa55c2d9a09ac75778135a2e6fc43eb5c2f7630232c2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218542a5ccbf3623b1fa55c2d9a09ac75778135a2e6fc43eb5c2f7630232c2e1", kill_on_drop: false }`
[INFO] [stdout] 218542a5ccbf3623b1fa55c2d9a09ac75778135a2e6fc43eb5c2f7630232c2e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 37ddaf7f2c2012935f9985a0d5c7136b71de9ea52d50d0aa928139fe2a8a93ac
[INFO] running `Command { std: "docker" "start" "-a" "37ddaf7f2c2012935f9985a0d5c7136b71de9ea52d50d0aa928139fe2a8a93ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking grand-toaster-protocol-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/future.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
[INFO] [stdout]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/future.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
[INFO] [stdout]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 8.90s
[INFO] running `Command { std: "docker" "inspect" "37ddaf7f2c2012935f9985a0d5c7136b71de9ea52d50d0aa928139fe2a8a93ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ddaf7f2c2012935f9985a0d5c7136b71de9ea52d50d0aa928139fe2a8a93ac", kill_on_drop: false }`
[INFO] [stdout] 37ddaf7f2c2012935f9985a0d5c7136b71de9ea52d50d0aa928139fe2a8a93ac
[INFO] checking zumepro/grand-toaster-protocol-server against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzumepro%2Fgrand-toaster-protocol-server" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zumepro/grand-toaster-protocol-server 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/zumepro/grand-toaster-protocol-server
[INFO] finished tweaking git repo https://github.com/zumepro/grand-toaster-protocol-server
[INFO] tweaked toml for git repo https://github.com/zumepro/grand-toaster-protocol-server written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zumepro/grand-toaster-protocol-server 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5c48391fa813a0d87b83deb48b272173ac8a2080b3fdc0c1a93cc7efb2cae021
[INFO] running `Command { std: "docker" "start" "-a" "5c48391fa813a0d87b83deb48b272173ac8a2080b3fdc0c1a93cc7efb2cae021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c48391fa813a0d87b83deb48b272173ac8a2080b3fdc0c1a93cc7efb2cae021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c48391fa813a0d87b83deb48b272173ac8a2080b3fdc0c1a93cc7efb2cae021", kill_on_drop: false }`
[INFO] [stdout] 5c48391fa813a0d87b83deb48b272173ac8a2080b3fdc0c1a93cc7efb2cae021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f9137ba63039d2954b6010cfdcf507e2eaf660e1887d0d56cd0f9637f094a8ad
[INFO] running `Command { std: "docker" "start" "-a" "f9137ba63039d2954b6010cfdcf507e2eaf660e1887d0d56cd0f9637f094a8ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking grand-toaster-protocol-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/future.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
[INFO] [stdout]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> src/future.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
[INFO] [stdout]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 6.59s
[INFO] running `Command { std: "docker" "inspect" "f9137ba63039d2954b6010cfdcf507e2eaf660e1887d0d56cd0f9637f094a8ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9137ba63039d2954b6010cfdcf507e2eaf660e1887d0d56cd0f9637f094a8ad", kill_on_drop: false }`
[INFO] [stdout] f9137ba63039d2954b6010cfdcf507e2eaf660e1887d0d56cd0f9637f094a8ad