[INFO] cloning repository https://github.com/G0ldenSp00n/rust-scratch-tcp-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/G0ldenSp00n/rust-scratch-tcp-web-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FG0ldenSp00n%2Frust-scratch-tcp-web-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FG0ldenSp00n%2Frust-scratch-tcp-web-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7dc544112318d67f3a5abe59fffe150b992f72ec
[INFO] checking G0ldenSp00n/rust-scratch-tcp-web-server against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FG0ldenSp00n%2Frust-scratch-tcp-web-server" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-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/G0ldenSp00n/rust-scratch-tcp-web-server
[INFO] finished tweaking git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-web-server
[INFO] tweaked toml for git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-web-server written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c2b6589c9df210c67fa387f3e31e709cebb70d64d895d940fb977fd0c7d56025
[INFO] running `Command { std: "docker" "start" "-a" "c2b6589c9df210c67fa387f3e31e709cebb70d64d895d940fb977fd0c7d56025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2b6589c9df210c67fa387f3e31e709cebb70d64d895d940fb977fd0c7d56025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b6589c9df210c67fa387f3e31e709cebb70d64d895d940fb977fd0c7d56025", kill_on_drop: false }`
[INFO] [stdout] c2b6589c9df210c67fa387f3e31e709cebb70d64d895d940fb977fd0c7d56025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9f59eb9899d45469d379314b45bba1e25106ae44b1db0d224eb63ee4dcb30669
[INFO] running `Command { std: "docker" "start" "-a" "9f59eb9899d45469d379314b45bba1e25106ae44b1db0d224eb63ee4dcb30669", kill_on_drop: false }`
[INFO] [stderr]     Checking web-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/request.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Request<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 26 |     pub method: Method<'a>,
[INFO] [stdout] 27 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]  --> src/result.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Content<'a> {
[INFO] [stdout]   |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     None,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BadRequest` and `ServerError` are never constructed
[INFO] [stdout]   --> src/result.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub enum ResponseCode {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 36 |     Success,
[INFO] [stdout] 37 |     BadRequest,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 38 |     ServerError,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/request.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Request<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 26 |     pub method: Method<'a>,
[INFO] [stdout] 27 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]  --> src/result.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Content<'a> {
[INFO] [stdout]   |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     None,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BadRequest` and `ServerError` are never constructed
[INFO] [stdout]   --> src/result.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub enum ResponseCode {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 36 |     Success,
[INFO] [stdout] 37 |     BadRequest,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 38 |     ServerError,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "9f59eb9899d45469d379314b45bba1e25106ae44b1db0d224eb63ee4dcb30669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f59eb9899d45469d379314b45bba1e25106ae44b1db0d224eb63ee4dcb30669", kill_on_drop: false }`
[INFO] [stdout] 9f59eb9899d45469d379314b45bba1e25106ae44b1db0d224eb63ee4dcb30669
[INFO] checking G0ldenSp00n/rust-scratch-tcp-web-server against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FG0ldenSp00n%2Frust-scratch-tcp-web-server" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-web-server 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/G0ldenSp00n/rust-scratch-tcp-web-server
[INFO] finished tweaking git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-web-server
[INFO] tweaked toml for git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-web-server written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/G0ldenSp00n/rust-scratch-tcp-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f91109b1a9d79c9d357a946dc0687e449276f31587ff7143928fa3be59a5d4da
[INFO] running `Command { std: "docker" "start" "-a" "f91109b1a9d79c9d357a946dc0687e449276f31587ff7143928fa3be59a5d4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f91109b1a9d79c9d357a946dc0687e449276f31587ff7143928fa3be59a5d4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f91109b1a9d79c9d357a946dc0687e449276f31587ff7143928fa3be59a5d4da", kill_on_drop: false }`
[INFO] [stdout] f91109b1a9d79c9d357a946dc0687e449276f31587ff7143928fa3be59a5d4da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 981742822f4b9c91e87866034db97fb54a34bc808c400caf4ef8ebcf592fdc3e
[INFO] running `Command { std: "docker" "start" "-a" "981742822f4b9c91e87866034db97fb54a34bc808c400caf4ef8ebcf592fdc3e", kill_on_drop: false }`
[INFO] [stderr]     Checking web-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/request.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Request<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 26 |     pub method: Method<'a>,
[INFO] [stdout] 27 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]  --> src/result.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Content<'a> {
[INFO] [stdout]   |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     None,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BadRequest` and `ServerError` are never constructed
[INFO] [stdout]   --> src/result.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub enum ResponseCode {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 36 |     Success,
[INFO] [stdout] 37 |     BadRequest,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 38 |     ServerError,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/request.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Request<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 26 |     pub method: Method<'a>,
[INFO] [stdout] 27 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]  --> src/result.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Content<'a> {
[INFO] [stdout]   |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     None,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BadRequest` and `ServerError` are never constructed
[INFO] [stdout]   --> src/result.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub enum ResponseCode {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 36 |     Success,
[INFO] [stdout] 37 |     BadRequest,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 38 |     ServerError,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "981742822f4b9c91e87866034db97fb54a34bc808c400caf4ef8ebcf592fdc3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981742822f4b9c91e87866034db97fb54a34bc808c400caf4ef8ebcf592fdc3e", kill_on_drop: false }`
[INFO] [stdout] 981742822f4b9c91e87866034db97fb54a34bc808c400caf4ef8ebcf592fdc3e