[INFO] cloning repository https://github.com/bohdaq/rust-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/bohdaq/rust-web-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbohdaq%2Frust-web-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbohdaq%2Frust-web-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fa6bfeb792a80f669e5fdde80bdbd95d1051c69
[INFO] checking bohdaq/rust-web-server against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbohdaq%2Frust-web-server" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/bohdaq/rust-web-server
[INFO] finished tweaking git repo https://github.com/bohdaq/rust-web-server
[INFO] tweaked toml for git repo https://github.com/bohdaq/rust-web-server written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bohdaq/rust-web-server on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding url-build-parse v11.0.0 (available: v12.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1bf13c1612e2da799c94cb2c5de80f03f531d2fc40b37933675eedc0403a186
[INFO] running `Command { std: "docker" "start" "-a" "e1bf13c1612e2da799c94cb2c5de80f03f531d2fc40b37933675eedc0403a186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1bf13c1612e2da799c94cb2c5de80f03f531d2fc40b37933675eedc0403a186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1bf13c1612e2da799c94cb2c5de80f03f531d2fc40b37933675eedc0403a186", kill_on_drop: false }`
[INFO] [stdout] e1bf13c1612e2da799c94cb2c5de80f03f531d2fc40b37933675eedc0403a186
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b92aacbb76a9ea7faea51581d1a0683b23f3478c0c203564a69ca6b06f9e100e
[INFO] running `Command { std: "docker" "start" "-a" "b92aacbb76a9ea7faea51581d1a0683b23f3478c0c203564a69ca6b06f9e100e", kill_on_drop: false }`
[INFO] [stderr]     Checking url-search-params v12.0.0
[INFO] [stderr]     Checking file-ext v12.0.0
[INFO] [stderr]     Checking url-build-parse v11.0.0
[INFO] [stderr]     Checking rws v16.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/json/array/string/mod.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |             let boxed_parse = item.parse::<String>();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/json/array/string/mod.rs:16:38
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut string: String = boxed_parse.unwrap().trim().to_string();
[INFO] [stdout]    |                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rws` (bin "rws") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `App` is never constructed
[INFO] [stdout]   --> src/application/example/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct App {}
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IndexController` is never constructed
[INFO] [stdout]   --> src/controller/example/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct IndexController;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `INDEX_FILEPATH` is never used
[INFO] [stdout]   --> src/controller/example/mod.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl IndexController {
[INFO] [stdout]    | -------------------- associated constant in this implementation
[INFO] [stdout] 13 |     pub const INDEX_FILEPATH: &'static str = "index.html";
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/json/array/string/mod.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |             let boxed_parse = item.parse::<String>();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/json/array/string/mod.rs:16:38
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut string: String = boxed_parse.unwrap().trim().to_string();
[INFO] [stdout]    |                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rws` (bin "rws" test) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b92aacbb76a9ea7faea51581d1a0683b23f3478c0c203564a69ca6b06f9e100e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b92aacbb76a9ea7faea51581d1a0683b23f3478c0c203564a69ca6b06f9e100e", kill_on_drop: false }`
[INFO] [stdout] b92aacbb76a9ea7faea51581d1a0683b23f3478c0c203564a69ca6b06f9e100e