[INFO] cloning repository https://github.com/SpandanBG/learn-rust-chat-web-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SpandanBG/learn-rust-chat-web-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpandanBG%2Flearn-rust-chat-web-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpandanBG%2Flearn-rust-chat-web-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61a14cc2285fb9165e62210a6ff31bec0891b4a4
[INFO] checking SpandanBG/learn-rust-chat-web-server against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpandanBG%2Flearn-rust-chat-web-server" "/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/SpandanBG/learn-rust-chat-web-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/SpandanBG/learn-rust-chat-web-server
[INFO] finished tweaking git repo https://github.com/SpandanBG/learn-rust-chat-web-server
[INFO] tweaked toml for git repo https://github.com/SpandanBG/learn-rust-chat-web-server written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SpandanBG/learn-rust-chat-web-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-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] 273cd756b5ad14202cfa72b7da56a41e4a14faa21445fb38e55b9f9b3a0aa2e4
[INFO] running `Command { std: "docker" "start" "-a" "273cd756b5ad14202cfa72b7da56a41e4a14faa21445fb38e55b9f9b3a0aa2e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "273cd756b5ad14202cfa72b7da56a41e4a14faa21445fb38e55b9f9b3a0aa2e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "273cd756b5ad14202cfa72b7da56a41e4a14faa21445fb38e55b9f9b3a0aa2e4", kill_on_drop: false }`
[INFO] [stdout] 273cd756b5ad14202cfa72b7da56a41e4a14faa21445fb38e55b9f9b3a0aa2e4
[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] 3ff7c86c499592f1e5262261a491851aa0ba683caac8779d8c6e703616524a6b
[INFO] running `Command { std: "docker" "start" "-a" "3ff7c86c499592f1e5262261a491851aa0ba683caac8779d8c6e703616524a6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling rustls v0.21.5
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking rustls-pemfile v1.0.3
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.101.1
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking chat_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rustls_pemfile` is imported redundantly
[INFO] [stdout]  --> src/ssl/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustls_pemfile;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rustls_pemfile` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustls_pemfile` is imported redundantly
[INFO] [stdout]  --> src/ssl/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustls_pemfile;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rustls_pemfile` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `method` is never read
[INFO] [stdout]   --> src/request/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Request {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 11 |     pub method: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `method` is never read
[INFO] [stdout]   --> src/request/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Request {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 11 |     pub method: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.51s
[INFO] running `Command { std: "docker" "inspect" "3ff7c86c499592f1e5262261a491851aa0ba683caac8779d8c6e703616524a6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ff7c86c499592f1e5262261a491851aa0ba683caac8779d8c6e703616524a6b", kill_on_drop: false }`
[INFO] [stdout] 3ff7c86c499592f1e5262261a491851aa0ba683caac8779d8c6e703616524a6b
[INFO] checking SpandanBG/learn-rust-chat-web-server against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpandanBG%2Flearn-rust-chat-web-server" "/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/SpandanBG/learn-rust-chat-web-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/SpandanBG/learn-rust-chat-web-server
[INFO] finished tweaking git repo https://github.com/SpandanBG/learn-rust-chat-web-server
[INFO] tweaked toml for git repo https://github.com/SpandanBG/learn-rust-chat-web-server written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/SpandanBG/learn-rust-chat-web-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-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 145878cd9cce3429e214f49e95b5a8a947facb4ad0b9363f201a21a42935f026
[INFO] running `Command { std: "docker" "start" "-a" "145878cd9cce3429e214f49e95b5a8a947facb4ad0b9363f201a21a42935f026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "145878cd9cce3429e214f49e95b5a8a947facb4ad0b9363f201a21a42935f026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145878cd9cce3429e214f49e95b5a8a947facb4ad0b9363f201a21a42935f026", kill_on_drop: false }`
[INFO] [stdout] 145878cd9cce3429e214f49e95b5a8a947facb4ad0b9363f201a21a42935f026
[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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 643837b5fd6df01a6ca3aa14185a04b3c0123f068dc09242607d918c1cd537a3
[INFO] running `Command { std: "docker" "start" "-a" "643837b5fd6df01a6ca3aa14185a04b3c0123f068dc09242607d918c1cd537a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rustls v0.21.5
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking rustls-pemfile v1.0.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking rustls-webpki v0.101.1
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking chat_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rustls_pemfile` is imported redundantly
[INFO] [stdout]  --> src/ssl/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustls_pemfile;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rustls_pemfile` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustls_pemfile` is imported redundantly
[INFO] [stdout]  --> src/ssl/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rustls_pemfile;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ the item `rustls_pemfile` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `method` is never read
[INFO] [stdout]   --> src/request/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Request {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 11 |     pub method: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `method` is never read
[INFO] [stdout]   --> src/request/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Request {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 11 |     pub method: String,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.28s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "643837b5fd6df01a6ca3aa14185a04b3c0123f068dc09242607d918c1cd537a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "643837b5fd6df01a6ca3aa14185a04b3c0123f068dc09242607d918c1cd537a3", kill_on_drop: false }`
[INFO] [stdout] 643837b5fd6df01a6ca3aa14185a04b3c0123f068dc09242607d918c1cd537a3