[INFO] cloning repository https://github.com/jk1551/rust-webserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jk1551/rust-webserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjk1551%2Frust-webserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjk1551%2Frust-webserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 773f267c1fe2a29d12d0917a737c55e2454b24e6
[INFO] testing jk1551/rust-webserver against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjk1551%2Frust-webserver" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jk1551/rust-webserver
[INFO] finished tweaking git repo https://github.com/jk1551/rust-webserver
[INFO] tweaked toml for git repo https://github.com/jk1551/rust-webserver written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jk1551/rust-webserver on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jk1551/rust-webserver 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a3c9b87f33f601ebf3b808aeb74c572cdbcc5d2341246d15e243812650cbb33
[INFO] running `Command { std: "docker" "start" "-a" "2a3c9b87f33f601ebf3b808aeb74c572cdbcc5d2341246d15e243812650cbb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a3c9b87f33f601ebf3b808aeb74c572cdbcc5d2341246d15e243812650cbb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3c9b87f33f601ebf3b808aeb74c572cdbcc5d2341246d15e243812650cbb33", kill_on_drop: false }`
[INFO] [stdout] 2a3c9b87f33f601ebf3b808aeb74c572cdbcc5d2341246d15e243812650cbb33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adffdb1ea30dab5d2f5c2a5780eb23a7ad3fa2b80bb2363b9e8066f7e4f98d08
[INFO] running `Command { std: "docker" "start" "-a" "adffdb1ea30dab5d2f5c2a5780eb23a7ad3fa2b80bb2363b9e8066f7e4f98d08", kill_on_drop: false }`
[INFO] [stderr]    Compiling webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/lib.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         drop(&self.sender.take());
[INFO] [stdout]    |         ^^^^^-------------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&Option<std::sync::mpsc::Sender<Box<dyn FnOnce() + Send>>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 78 -         drop(&self.sender.take());
[INFO] [stdout] 78 +         let _ = &self.sender.take();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "adffdb1ea30dab5d2f5c2a5780eb23a7ad3fa2b80bb2363b9e8066f7e4f98d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adffdb1ea30dab5d2f5c2a5780eb23a7ad3fa2b80bb2363b9e8066f7e4f98d08", kill_on_drop: false }`
[INFO] [stdout] adffdb1ea30dab5d2f5c2a5780eb23a7ad3fa2b80bb2363b9e8066f7e4f98d08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2ac48d330398c11081c846b9a137f4f5b9016127344b7662829d038dec25e2c
[INFO] running `Command { std: "docker" "start" "-a" "e2ac48d330398c11081c846b9a137f4f5b9016127344b7662829d038dec25e2c", kill_on_drop: false }`
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/lib.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         drop(&self.sender.take());
[INFO] [stdout]    |         ^^^^^-------------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&Option<std::sync::mpsc::Sender<Box<dyn FnOnce() + Send>>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 78 -         drop(&self.sender.take());
[INFO] [stdout] 78 +         let _ = &self.sender.take();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/lib.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         drop(&self.sender.take());
[INFO] [stdout]    |         ^^^^^-------------------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&Option<std::sync::mpsc::Sender<Box<dyn FnOnce() + Send>>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 78 -         drop(&self.sender.take());
[INFO] [stdout] 78 +         let _ = &self.sender.take();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "e2ac48d330398c11081c846b9a137f4f5b9016127344b7662829d038dec25e2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ac48d330398c11081c846b9a137f4f5b9016127344b7662829d038dec25e2c", kill_on_drop: false }`
[INFO] [stdout] e2ac48d330398c11081c846b9a137f4f5b9016127344b7662829d038dec25e2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 14f706826130846390f43f1fa87e86737992bd24c514298b92ee41b6ecc2faa1
[INFO] running `Command { std: "docker" "start" "-a" "14f706826130846390f43f1fa87e86737992bd24c514298b92ee41b6ecc2faa1", kill_on_drop: false }`
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/lib.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         drop(&self.sender.take());
[INFO] [stderr]    |         ^^^^^-------------------^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              argument has type `&Option<std::sync::mpsc::Sender<Box<dyn FnOnce() + Send>>>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 78 -         drop(&self.sender.take());
[INFO] [stderr] 78 +         let _ = &self.sender.take();
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `webserver` (lib) generated 1 warning
[INFO] [stderr] warning: `webserver` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/webserver-1ac4a70f73bf22b6)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/webserver-295e58c6de955067)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests webserver
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "14f706826130846390f43f1fa87e86737992bd24c514298b92ee41b6ecc2faa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f706826130846390f43f1fa87e86737992bd24c514298b92ee41b6ecc2faa1", kill_on_drop: false }`
[INFO] [stdout] 14f706826130846390f43f1fa87e86737992bd24c514298b92ee41b6ecc2faa1