[INFO] fetching crate http-server-async 0.1.0...
[INFO] testing http-server-async-0.1.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate http-server-async 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate http-server-async 0.1.0
[INFO] finished tweaking crates.io crate http-server-async 0.1.0
[INFO] tweaked toml for crates.io crate http-server-async 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate http-server-async 0.1.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate http-server-async 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5e53ee3c0029cf8e9ba7a4592fb185ccd15b8f5d3f138e9aaa0e2b6ad620570
[INFO] running `Command { std: "docker" "start" "-a" "f5e53ee3c0029cf8e9ba7a4592fb185ccd15b8f5d3f138e9aaa0e2b6ad620570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5e53ee3c0029cf8e9ba7a4592fb185ccd15b8f5d3f138e9aaa0e2b6ad620570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5e53ee3c0029cf8e9ba7a4592fb185ccd15b8f5d3f138e9aaa0e2b6ad620570", kill_on_drop: false }`
[INFO] [stdout] f5e53ee3c0029cf8e9ba7a4592fb185ccd15b8f5d3f138e9aaa0e2b6ad620570
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 471386e6f4871b557a49506cfb54aece25c5e950977de106a69813260ea658aa
[INFO] running `Command { std: "docker" "start" "-a" "471386e6f4871b557a49506cfb54aece25c5e950977de106a69813260ea658aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling slab v0.4.6
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.8.3
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling tokio v1.19.2
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling http-server-async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tokio::io::AsyncReadExt`
[INFO] [stdout]    --> src/main.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 | use tokio::io::AsyncReadExt;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/main.rs:150:33
[INFO] [stdout]     |
[INFO] [stdout] 150 | async fn put_data_to_buffer(mut buf: &[u8]) {}
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[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/main.rs:150:29
[INFO] [stdout]     |
[INFO] [stdout] 150 | async fn put_data_to_buffer(mut buf: &[u8]) {}
[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: unused variable: `method`
[INFO] [stdout]    --> src/main.rs:350:9
[INFO] [stdout]     |
[INFO] [stdout] 350 |     let method = strsubs[0];
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:376:17
[INFO] [stdout]     |
[INFO] [stdout] 376 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo` is never used
[INFO] [stdout]   --> src/main.rs:79:10
[INFO] [stdout]    |
[INFO] [stdout] 79 | async fn foo() -> u8 {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bar` is never used
[INFO] [stdout]   --> src/main.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn bar() -> impl Future<Output = u8> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fbbin` is never used
[INFO] [stdout]   --> src/main.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 | async fn fbbin(x: &u8) -> u8 {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fbbin2` is never used
[INFO] [stdout]    --> src/main.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn fbbin2<'a>(x: &'a u8) -> impl Future<Output = u8> + 'a {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `good` is never used
[INFO] [stdout]    --> src/main.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn good() -> impl Future<Output = u8> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_block` is never used
[INFO] [stdout]    --> src/main.rs:118:10
[INFO] [stdout]     |
[INFO] [stdout] 118 | async fn move_block() {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multi` is never used
[INFO] [stdout]    --> src/main.rs:136:10
[INFO] [stdout]     |
[INFO] [stdout] 136 | async fn multi() -> impl Future<Output = ()> {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `put_data_to_buffer` is never used
[INFO] [stdout]    --> src/main.rs:150:10
[INFO] [stdout]     |
[INFO] [stdout] 150 | async fn put_data_to_buffer(mut buf: &[u8]) {}
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pin_demo_main` is never used
[INFO] [stdout]    --> src/main.rs:153:10
[INFO] [stdout]     |
[INFO] [stdout] 153 | async fn pin_demo_main() {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f1` is never used
[INFO] [stdout]    --> src/main.rs:169:10
[INFO] [stdout]     |
[INFO] [stdout] 169 | async fn f1() {
[INFO] [stdout]     |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f2` is never used
[INFO] [stdout]    --> src/main.rs:175:10
[INFO] [stdout]     |
[INFO] [stdout] 175 | async fn f2() {
[INFO] [stdout]     |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_main` is never used
[INFO] [stdout]    --> src/main.rs:179:10
[INFO] [stdout]     |
[INFO] [stdout] 179 | async fn f_main() {
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rf` is never used
[INFO] [stdout]    --> src/main.rs:197:10
[INFO] [stdout]     |
[INFO] [stdout] 197 | async fn rf() -> std::io::Result<()> {
[INFO] [stdout]     |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rg` is never used
[INFO] [stdout]    --> src/main.rs:202:10
[INFO] [stdout]     |
[INFO] [stdout] 202 | async fn rg() -> std::io::Result<()> {
[INFO] [stdout]     |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_join_main` is never used
[INFO] [stdout]    --> src/main.rs:208:10
[INFO] [stdout]     |
[INFO] [stdout] 208 | async fn try_join_main() {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_name` is never used
[INFO] [stdout]    --> src/main.rs:228:10
[INFO] [stdout]     |
[INFO] [stdout] 228 | async fn get_name() -> String {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `t_select_main` is never used
[INFO] [stdout]    --> src/main.rs:233:10
[INFO] [stdout]     |
[INFO] [stdout] 233 | async fn t_select_main() {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo1` is never used
[INFO] [stdout]    --> src/main.rs:276:10
[INFO] [stdout]     |
[INFO] [stdout] 276 | async fn foo1() -> Result<(), String> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func` is never used
[INFO] [stdout]    --> src/main.rs:280:10
[INFO] [stdout]     |
[INFO] [stdout] 280 | async fn func() -> Result<(), String> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokio_server` is never used
[INFO] [stdout]    --> src/main.rs:315:10
[INFO] [stdout]     |
[INFO] [stdout] 315 | async fn tokio_server() -> Result<(), Error> {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_conn` is never used
[INFO] [stdout]    --> src/main.rs:338:10
[INFO] [stdout]     |
[INFO] [stdout] 338 | async fn handle_conn(mut stream: TcpStream) -> Result<(), Error> {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/user_info/user.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct User {}
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `name` is never used
[INFO] [stdout]  --> src/user_info/user.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl User {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 4 |     fn name(self) -> Self {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.48s
[INFO] running `Command { std: "docker" "inspect" "471386e6f4871b557a49506cfb54aece25c5e950977de106a69813260ea658aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "471386e6f4871b557a49506cfb54aece25c5e950977de106a69813260ea658aa", kill_on_drop: false }`
[INFO] [stdout] 471386e6f4871b557a49506cfb54aece25c5e950977de106a69813260ea658aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33c66435d1d33fe4fcd5069d2ee395fba83d834ce4da4b35de2327585e143d78
[INFO] running `Command { std: "docker" "start" "-a" "33c66435d1d33fe4fcd5069d2ee395fba83d834ce4da4b35de2327585e143d78", kill_on_drop: false }`
[INFO] [stderr]    Compiling http-server-async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tokio::io::AsyncReadExt`
[INFO] [stdout]    --> src/main.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 | use tokio::io::AsyncReadExt;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/main.rs:150:33
[INFO] [stdout]     |
[INFO] [stdout] 150 | async fn put_data_to_buffer(mut buf: &[u8]) {}
[INFO] [stdout]     |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[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/main.rs:150:29
[INFO] [stdout]     |
[INFO] [stdout] 150 | async fn put_data_to_buffer(mut buf: &[u8]) {}
[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: unused variable: `method`
[INFO] [stdout]    --> src/main.rs:350:9
[INFO] [stdout]     |
[INFO] [stdout] 350 |     let method = strsubs[0];
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:376:17
[INFO] [stdout]     |
[INFO] [stdout] 376 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `http`
[INFO] [stdout]    --> src/main.rs:397:32
[INFO] [stdout]     |
[INFO] [stdout] 397 |     let res = runtime.block_on(http::server());
[INFO] [stdout]     |                                ^^^^ use of unresolved module or unlinked crate `http`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/main.rs:7:5
[INFO] [stdout]     |
[INFO] [stdout]   6 | #[cfg(feature = "http")]
[INFO] [stdout]     |       ---------------- the item is gated behind the `http` feature
[INFO] [stdout]   7 | mod http;
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] help: to make use of source file src/http/mod.rs, use `mod http` in this file to declare the module
[INFO] [stdout]     |
[INFO] [stdout]   1 + mod http;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `http-server-async` (bin "http-server-async" test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "33c66435d1d33fe4fcd5069d2ee395fba83d834ce4da4b35de2327585e143d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c66435d1d33fe4fcd5069d2ee395fba83d834ce4da4b35de2327585e143d78", kill_on_drop: false }`
[INFO] [stdout] 33c66435d1d33fe4fcd5069d2ee395fba83d834ce4da4b35de2327585e143d78