[INFO] fetching crate tower-default-headers 0.2.0...
[INFO] checking tower-default-headers-0.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate tower-default-headers 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tower-default-headers 0.2.0
[INFO] finished tweaking crates.io crate tower-default-headers 0.2.0
[INFO] tweaked toml for crates.io crate tower-default-headers 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-default-headers 0.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tower-default-headers 0.2.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52ca90bd7235c817f9d00cc01e10bb250b3dfcbb6645d82177daaf20312bbd6f
[INFO] running `Command { std: "docker" "start" "-a" "52ca90bd7235c817f9d00cc01e10bb250b3dfcbb6645d82177daaf20312bbd6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52ca90bd7235c817f9d00cc01e10bb250b3dfcbb6645d82177daaf20312bbd6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ca90bd7235c817f9d00cc01e10bb250b3dfcbb6645d82177daaf20312bbd6f", kill_on_drop: false }`
[INFO] [stdout] 52ca90bd7235c817f9d00cc01e10bb250b3dfcbb6645d82177daaf20312bbd6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3f489a1eb9a903d06241c6daaa9e43d548d5e5848bee5ce626195d4a31bf6d6
[INFO] running `Command { std: "docker" "start" "-a" "c3f489a1eb9a903d06241c6daaa9e43d548d5e5848bee5ce626195d4a31bf6d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling httparse v1.10.0
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]    Compiling rustversion v1.0.19
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking serde_path_to_error v0.1.16
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.9
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.9
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking tower-default-headers v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking axum-core v0.5.0
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking tower v0.5.2
[INFO] [stderr]     Checking hyper-util v0.1.10
[INFO] [stderr]     Checking axum v0.8.1
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:162:28
[INFO] [stdout]     |
[INFO] [stdout] 162 |           let mut response = app
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 163 | |             .oneshot(Request::builder().uri("/").body(Body::empty()).unwrap())
[INFO] [stdout] 164 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:164:14
[INFO] [stdout]     |
[INFO] [stdout] 164 |             .await
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:162:28
[INFO] [stdout]     |
[INFO] [stdout] 162 |           let mut response = app
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 163 | |             .oneshot(Request::builder().uri("/").body(Body::empty()).unwrap())
[INFO] [stdout] 164 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:199:28
[INFO] [stdout]     |
[INFO] [stdout] 199 |           let mut response = app
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 200 | |             .oneshot(Request::builder().uri("/").body(Body::empty()).unwrap())
[INFO] [stdout] 201 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:201:14
[INFO] [stdout]     |
[INFO] [stdout] 201 |             .await
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:199:28
[INFO] [stdout]     |
[INFO] [stdout] 199 |           let mut response = app
[INFO] [stdout]     |  ____________________________^
[INFO] [stdout] 200 | |             .oneshot(Request::builder().uri("/").body(Body::empty()).unwrap())
[INFO] [stdout] 201 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-default-headers` (lib test) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "c3f489a1eb9a903d06241c6daaa9e43d548d5e5848bee5ce626195d4a31bf6d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3f489a1eb9a903d06241c6daaa9e43d548d5e5848bee5ce626195d4a31bf6d6", kill_on_drop: false }`
[INFO] [stdout] c3f489a1eb9a903d06241c6daaa9e43d548d5e5848bee5ce626195d4a31bf6d6