[INFO] updating cached repository https://github.com/jkurian/basic-web-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80b3ed2849c4bda6af9307b4ac01d7c1b700afca
[INFO] checking jkurian/basic-web-server against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkurian%2Fbasic-web-server" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkurian/basic-web-server on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jkurian/basic-web-server
[INFO] finished tweaking git repo https://github.com/jkurian/basic-web-server
[INFO] tweaked toml for git repo https://github.com/jkurian/basic-web-server written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jkurian/basic-web-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f5ac022e9ade07e4c7c7cb6978ee605958c655c11eb3cc250e1527b87de0b01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f5ac022e9ade07e4c7c7cb6978ee605958c655c11eb3cc250e1527b87de0b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f5ac022e9ade07e4c7c7cb6978ee605958c655c11eb3cc250e1527b87de0b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5ac022e9ade07e4c7c7cb6978ee605958c655c11eb3cc250e1527b87de0b01", kill_on_drop: false }`
[INFO] [stdout] 1f5ac022e9ade07e4c7c7cb6978ee605958c655c11eb3cc250e1527b87de0b01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 891c50aafcb60d29b497da16ebf6414a57c4a8371ff28eeb12a2b0ee3351e8be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "891c50aafcb60d29b497da16ebf6414a57c4a8371ff28eeb12a2b0ee3351e8be", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |       if(size <= 0) {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |     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: field is never read: `workers`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |       if(size <= 0) {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     sender: mpsc::Sender<Job>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 |   id: usize,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread`
[INFO] [stdout]   --> src/lib.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   thread: thread::JoinHandle<()>
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement with no effect
[INFO] [stdout]   --> src/lib.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 |       receiver;
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |     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: field is never read: `workers`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sender`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     sender: mpsc::Sender<Job>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:15:3
[INFO] [stdout]    |
[INFO] [stdout] 15 |   id: usize,
[INFO] [stdout]    |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `thread`
[INFO] [stdout]   --> src/lib.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   thread: thread::JoinHandle<()>
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement with no effect
[INFO] [stdout]   --> src/lib.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 |       receiver;
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ThreadPoolError`
[INFO] [stdout]   --> src/bin/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         Err(ThreadPoolError) => {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ThreadPoolError`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ThreadPool` should have a snake case name
[INFO] [stdout]   --> src/bin/main.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |         Ok(ThreadPool) => ThreadPool,
[INFO] [stdout]    |            ^^^^^^^^^^ help: convert the identifier to snake case: `thread_pool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ThreadPoolError` should have a snake case name
[INFO] [stdout]   --> src/bin/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         Err(ThreadPoolError) => {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `thread_pool_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ThreadPoolError`
[INFO] [stdout]   --> src/bin/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         Err(ThreadPoolError) => {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ThreadPoolError`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ThreadPool` should have a snake case name
[INFO] [stdout]   --> src/bin/main.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |         Ok(ThreadPool) => ThreadPool,
[INFO] [stdout]    |            ^^^^^^^^^^ help: convert the identifier to snake case: `thread_pool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ThreadPoolError` should have a snake case name
[INFO] [stdout]   --> src/bin/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         Err(ThreadPoolError) => {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `thread_pool_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "891c50aafcb60d29b497da16ebf6414a57c4a8371ff28eeb12a2b0ee3351e8be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891c50aafcb60d29b497da16ebf6414a57c4a8371ff28eeb12a2b0ee3351e8be", kill_on_drop: false }`
[INFO] [stdout] 891c50aafcb60d29b497da16ebf6414a57c4a8371ff28eeb12a2b0ee3351e8be