[INFO] cloning repository https://github.com/alexryndin/rserv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexryndin/rserv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexryndin%2Frserv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexryndin%2Frserv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cd16b77c8823661a1841c71b57c22a1544f744c
[INFO] checking alexryndin/rserv against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexryndin%2Frserv" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexryndin/rserv on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexryndin/rserv
[INFO] finished tweaking git repo https://github.com/alexryndin/rserv
[INFO] tweaked toml for git repo https://github.com/alexryndin/rserv written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/alexryndin/rserv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eb915bf797f969222a8e4451fc48de6f9595587028f5d0a4a4f7f4d1934d2aa3
[INFO] running `Command { std: "docker" "start" "-a" "eb915bf797f969222a8e4451fc48de6f9595587028f5d0a4a4f7f4d1934d2aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb915bf797f969222a8e4451fc48de6f9595587028f5d0a4a4f7f4d1934d2aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb915bf797f969222a8e4451fc48de6f9595587028f5d0a4a4f7f4d1934d2aa3", kill_on_drop: false }`
[INFO] [stdout] eb915bf797f969222a8e4451fc48de6f9595587028f5d0a4a4f7f4d1934d2aa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 923d1654cde31ae87cb7b8952264a315d99abdb93e723c0d1f4169297896975e
[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" "923d1654cde31ae87cb7b8952264a315d99abdb93e723c0d1f4169297896975e", kill_on_drop: false }`
[INFO] [stderr]     Checking serv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn test(u: i32) -> i32 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn test2(u: &str) -> i32 {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn test3(u: String) -> i32 {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `headers_and_body`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     headers_and_body: Vec<&'a str>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn test(u: i32) -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test2`
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn test2(u: &str) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test3`
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn test3(u: String) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn test(u: i32) -> i32 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn test2(u: &str) -> i32 {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/main.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn test3(u: String) -> i32 {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `headers_and_body`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     headers_and_body: Vec<&'a str>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn test(u: i32) -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test2`
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn test2(u: &str) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test3`
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn test3(u: String) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "923d1654cde31ae87cb7b8952264a315d99abdb93e723c0d1f4169297896975e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "923d1654cde31ae87cb7b8952264a315d99abdb93e723c0d1f4169297896975e", kill_on_drop: false }`
[INFO] [stdout] 923d1654cde31ae87cb7b8952264a315d99abdb93e723c0d1f4169297896975e