[INFO] fetching crate http-serve 0.2.2...
[INFO] checking http-serve-0.2.2 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate http-serve 0.2.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate http-serve 0.2.2 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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-1/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3d8c3abfac6a32922fbbdca627e9bd9271bd12e38e3dc3e4c9cf758254022a8
[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" "d3d8c3abfac6a32922fbbdca627e9bd9271bd12e38e3dc3e4c9cf758254022a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3d8c3abfac6a32922fbbdca627e9bd9271bd12e38e3dc3e4c9cf758254022a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d8c3abfac6a32922fbbdca627e9bd9271bd12e38e3dc3e4c9cf758254022a8", kill_on_drop: false }`
[INFO] [stdout] d3d8c3abfac6a32922fbbdca627e9bd9271bd12e38e3dc3e4c9cf758254022a8
[INFO] running `Command { std: "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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ee435171da33e754adcabfd85ba63e514f9c7b78f781a41a62d29fe670a9b8f
[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" "4ee435171da33e754adcabfd85ba63e514f9c7b78f781a41a62d29fe670a9b8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling serde v1.0.107
[INFO] [stderr]     Checking pin-project-lite v0.1.5
[INFO] [stderr]    Compiling standback v0.2.8
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking oorandom v11.1.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking plotters v0.2.14
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling time v0.2.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking async-compression v0.3.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking criterion-plot v0.4.2
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking env_logger v0.7.1
[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 tinytemplate v1.0.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.13
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.107
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking pin-project v0.4.13
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking criterion v0.3.2
[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 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]   --> 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/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]    --> 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: 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: 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 1m 34s
[INFO] running `Command { std: "docker" "inspect" "4ee435171da33e754adcabfd85ba63e514f9c7b78f781a41a62d29fe670a9b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ee435171da33e754adcabfd85ba63e514f9c7b78f781a41a62d29fe670a9b8f", kill_on_drop: false }`
[INFO] [stdout] 4ee435171da33e754adcabfd85ba63e514f9c7b78f781a41a62d29fe670a9b8f