[INFO] fetching crate http-serve 0.2.2...
[INFO] checking http-serve-0.2.2 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate http-serve 0.2.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate http-serve 0.2.2 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate http-serve 0.2.2
[INFO] finished tweaking crates.io crate http-serve 0.2.2
[INFO] tweaked toml for crates.io crate http-serve 0.2.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate http-serve 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-compression v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 123286ec5338e5c00b448ed75aea80130a61db2f85d87cd183ae151d7b84c655
[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" "123286ec5338e5c00b448ed75aea80130a61db2f85d87cd183ae151d7b84c655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "123286ec5338e5c00b448ed75aea80130a61db2f85d87cd183ae151d7b84c655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123286ec5338e5c00b448ed75aea80130a61db2f85d87cd183ae151d7b84c655", kill_on_drop: false }`
[INFO] [stdout] 123286ec5338e5c00b448ed75aea80130a61db2f85d87cd183ae151d7b84c655
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 61e60e274598e7dd3d54e1ecb597cb83ba5615dcfafd31ed7cc05179a7ba468c
[INFO] running `Command { std: "docker" "start" "-a" "61e60e274598e7dd3d54e1ecb597cb83ba5615dcfafd31ed7cc05179a7ba468c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.107
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling standback v0.2.8
[INFO] [stderr]     Checking oorandom v11.1.1
[INFO] [stderr]    Compiling time v0.2.15
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking plotters v0.2.14
[INFO] [stderr]     Checking async-compression v0.3.3
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.107
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking criterion-plot v0.4.2
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking http-serve v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tinytemplate v1.0.4
[INFO] [stderr]     Checking criterion v0.3.2
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/chunked-acceptance.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         { Mutex::new(HashMap::new()) };
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/chunked-acceptance.rs:69:33
[INFO] [stdout]    |
[INFO] [stdout] 69 |     static ref SERVER: Server = { new_server() };
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> benches/inmem.rs:149:37
[INFO] [stdout]     |
[INFO] [stdout] 149 |     static ref SERVER: SocketAddr = { new_server() };
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> benches/file.rs:66:40
[INFO] [stdout]    |
[INFO] [stdout] 66 |     static ref PATH: Mutex<OsString> = { Mutex::new(OsString::new()) };
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> benches/file.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 |     static ref SERVER: String = { new_server() };
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> tests/entity-acceptance.rs:115:33
[INFO] [stdout]     |
[INFO] [stdout] 115 |     static ref SERVER: String = { new_server() };
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.08s
[INFO] running `Command { std: "docker" "inspect" "61e60e274598e7dd3d54e1ecb597cb83ba5615dcfafd31ed7cc05179a7ba468c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61e60e274598e7dd3d54e1ecb597cb83ba5615dcfafd31ed7cc05179a7ba468c", kill_on_drop: false }`
[INFO] [stdout] 61e60e274598e7dd3d54e1ecb597cb83ba5615dcfafd31ed7cc05179a7ba468c