[INFO] fetching crate devserver_lib 0.1.7...
[INFO] checking devserver_lib-0.1.7 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate devserver_lib 0.1.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate devserver_lib 0.1.7 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate devserver_lib 0.1.7
[INFO] finished tweaking crates.io crate devserver_lib 0.1.7
[INFO] tweaked toml for crates.io crate devserver_lib 0.1.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate devserver_lib 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dfdb1d9dfce5c76146544ca48d4a63a28b8860fece17f2017779689796c2a3b
[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" "0dfdb1d9dfce5c76146544ca48d4a63a28b8860fece17f2017779689796c2a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dfdb1d9dfce5c76146544ca48d4a63a28b8860fece17f2017779689796c2a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dfdb1d9dfce5c76146544ca48d4a63a28b8860fece17f2017779689796c2a3b", kill_on_drop: false }`
[INFO] [stdout] 0dfdb1d9dfce5c76146544ca48d4a63a28b8860fece17f2017779689796c2a3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2de526cf7a9bba83ee2a99f8be428679d7202d6dac1b07f874ec60dd17b09817
[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" "2de526cf7a9bba83ee2a99f8be428679d7202d6dac1b07f874ec60dd17b09817", kill_on_drop: false }`
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking devserver_lib v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `reload`
[INFO] [stdout]   --> src/lib.rs:33:67
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn handle_client<T: Read + Write>(mut stream: T, root_path: &str, reload: bool) {
[INFO] [stdout]    |                                                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reload`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reload`
[INFO] [stdout]   --> src/lib.rs:33:67
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn handle_client<T: Read + Write>(mut stream: T, root_path: &str, reload: bool) {
[INFO] [stdout]    |                                                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reload`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut content_length = file_contents.len();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut content_length = file_contents.len();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.98s
[INFO] running `Command { std: "docker" "inspect" "2de526cf7a9bba83ee2a99f8be428679d7202d6dac1b07f874ec60dd17b09817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2de526cf7a9bba83ee2a99f8be428679d7202d6dac1b07f874ec60dd17b09817", kill_on_drop: false }`
[INFO] [stdout] 2de526cf7a9bba83ee2a99f8be428679d7202d6dac1b07f874ec60dd17b09817