[INFO] fetching crate tower-request-modifier 0.1.0...
[INFO] checking tower-request-modifier-0.1.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate tower-request-modifier 0.1.0 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate tower-request-modifier 0.1.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-request-modifier 0.1.0
[INFO] finished tweaking crates.io crate tower-request-modifier 0.1.0
[INFO] tweaked toml for crates.io crate tower-request-modifier 0.1.0 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-test v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0171695c4ef7ca362b177004dd73d57035ce680288aef6fa0f4f936aa79378f9
[INFO] running `Command { std: "docker" "start" "-a" "0171695c4ef7ca362b177004dd73d57035ce680288aef6fa0f4f936aa79378f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0171695c4ef7ca362b177004dd73d57035ce680288aef6fa0f4f936aa79378f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0171695c4ef7ca362b177004dd73d57035ce680288aef6fa0f4f936aa79378f9", kill_on_drop: false }`
[INFO] [stdout] 0171695c4ef7ca362b177004dd73d57035ce680288aef6fa0f4f936aa79378f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac908e645da6c06d94002b81172a4c25291f7ef9d853eb88cd9021a10bf777da
[INFO] running `Command { std: "docker" "start" "-a" "ac908e645da6c06d94002b81172a4c25291f7ef9d853eb88cd9021a10bf777da", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking tower-service v0.2.0
[INFO] [stderr]     Checking tower-test v0.1.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tower-request-modifier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |         modifiers: Arc<Vec<Box<Fn(Request<B>) -> Request<B> + Send + Sync>>>,
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:3:24
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |         modifiers: Arc<Vec<Box<Fn(Request<B>) -> Request<B> + Send + Sync>>>,
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:123:14
[INFO] [stdout]     |
[INFO] [stdout] 123 |     ) -> Box<Fn(Request<B>) -> Request<B> + Send + Sync> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:154:14
[INFO] [stdout]     |
[INFO] [stdout] 154 |     ) -> Box<Fn(Request<B>) -> Request<B> + Send + Sync> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:202:23
[INFO] [stdout]     |
[INFO] [stdout] 202 |         modifier: Box<Fn(Request<B>) -> Request<B> + Send + Sync>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:123:14
[INFO] [stdout]     |
[INFO] [stdout] 123 |     ) -> Box<Fn(Request<B>) -> Request<B> + Send + Sync> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:154:14
[INFO] [stdout]     |
[INFO] [stdout] 154 |     ) -> Box<Fn(Request<B>) -> Request<B> + Send + Sync> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:202:23
[INFO] [stdout]     |
[INFO] [stdout] 202 |         modifier: Box<Fn(Request<B>) -> Request<B> + Send + Sync>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<B>) -> Request<B> + Send + Sync`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-request-modifier` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ac908e645da6c06d94002b81172a4c25291f7ef9d853eb88cd9021a10bf777da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac908e645da6c06d94002b81172a4c25291f7ef9d853eb88cd9021a10bf777da", kill_on_drop: false }`
[INFO] [stdout] ac908e645da6c06d94002b81172a4c25291f7ef9d853eb88cd9021a10bf777da