[INFO] cloning repository https://github.com/redbean/rust_myhttps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redbean/rust_myhttps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredbean%2Frust_myhttps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredbean%2Frust_myhttps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecb99f3730f048bb1e411e13270f43c695cc3246
[INFO] checking redbean/rust_myhttps against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredbean%2Frust_myhttps" "/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/redbean/rust_myhttps on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/redbean/rust_myhttps
[INFO] finished tweaking git repo https://github.com/redbean/rust_myhttps
[INFO] tweaked toml for git repo https://github.com/redbean/rust_myhttps written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/redbean/rust_myhttps 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 456ad6e5d5b7643d107cb0d1615ff4999063f1dab02cf93af0e7da8abc9013c3
[INFO] running `Command { std: "docker" "start" "-a" "456ad6e5d5b7643d107cb0d1615ff4999063f1dab02cf93af0e7da8abc9013c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "456ad6e5d5b7643d107cb0d1615ff4999063f1dab02cf93af0e7da8abc9013c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456ad6e5d5b7643d107cb0d1615ff4999063f1dab02cf93af0e7da8abc9013c3", kill_on_drop: false }`
[INFO] [stdout] 456ad6e5d5b7643d107cb0d1615ff4999063f1dab02cf93af0e7da8abc9013c3
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475ba629bc5eece99a5acb8eb09e8e6cfbbcc054ae0dbeaf84385963ed334bf2
[INFO] running `Command { std: "docker" "start" "-a" "475ba629bc5eece99a5acb8eb09e8e6cfbbcc054ae0dbeaf84385963ed334bf2", kill_on_drop: false }`
[INFO] [stderr]     Checking my_http v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:34:31
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn execute<F> (&self, f:F)
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `workers` and `sender` are never read
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct ThreadPool
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     workers : Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 13 |     sender : mpsc::Sender<Job>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Worker 
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 44 | {
[INFO] [stdout] 45 |     id : usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 46 |     thread : thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement drops value
[INFO] [stdout]   --> src/lib.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 receiver;
[INFO] [stdout]    |                 ^^^^^^^^^ help: use `drop` to clarify the intent: `drop(receiver);`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:34:31
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn execute<F> (&self, f:F)
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `workers` and `sender` are never read
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct ThreadPool
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     workers : Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 13 |     sender : mpsc::Sender<Job>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Worker 
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 44 | {
[INFO] [stdout] 45 |     id : usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 46 |     thread : thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement drops value
[INFO] [stdout]   --> src/lib.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 receiver;
[INFO] [stdout]    |                 ^^^^^^^^^ help: use `drop` to clarify the intent: `drop(receiver);`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "475ba629bc5eece99a5acb8eb09e8e6cfbbcc054ae0dbeaf84385963ed334bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475ba629bc5eece99a5acb8eb09e8e6cfbbcc054ae0dbeaf84385963ed334bf2", kill_on_drop: false }`
[INFO] [stdout] 475ba629bc5eece99a5acb8eb09e8e6cfbbcc054ae0dbeaf84385963ed334bf2