[INFO] fetching crate devserver_lib 0.1.3...
[INFO] checking devserver_lib-0.1.3 against try#89c05fd3cc6404a13e1bd71450c6132a2755fa4b for pr-69741
[INFO] extracting crate devserver_lib 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate devserver_lib 0.1.3 on toolchain 89c05fd3cc6404a13e1bd71450c6132a2755fa4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate devserver_lib 0.1.3
[INFO] finished tweaking crates.io crate devserver_lib 0.1.3
[INFO] tweaked toml for crates.io crate devserver_lib 0.1.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate devserver_lib 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "/opt/rustwide/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dc9a86a8428e6696399595f730eeec12e4570c8c63ff2a27e1024c2cc085d74f
[INFO] running `"docker" "start" "-a" "dc9a86a8428e6696399595f730eeec12e4570c8c63ff2a27e1024c2cc085d74f"`
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking devserver_lib v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `reload`
[INFO] [stderr]    --> src/lib.rs:109:50
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn run(address: &str, port: u32, path: &str, reload: bool) {
[INFO] [stderr]     |                                                  ^^^^^^ help: consider prefixing with an underscore: `_reload`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reload`
[INFO] [stderr]    --> src/lib.rs:109:50
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub fn run(address: &str, port: u32, path: &str, reload: bool) {
[INFO] [stderr]     |                                                  ^^^^^^ help: consider prefixing with an underscore: `_reload`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut content_length = file_contents.len();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut content_length = file_contents.len();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "dc9a86a8428e6696399595f730eeec12e4570c8c63ff2a27e1024c2cc085d74f"`
[INFO] running `"docker" "rm" "-f" "dc9a86a8428e6696399595f730eeec12e4570c8c63ff2a27e1024c2cc085d74f"`
[INFO] [stdout] dc9a86a8428e6696399595f730eeec12e4570c8c63ff2a27e1024c2cc085d74f