[INFO] fetching crate async-instrumenter 0.1.4...
[INFO] testing async-instrumenter-0.1.4 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate async-instrumenter 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate async-instrumenter 0.1.4
[INFO] finished tweaking crates.io crate async-instrumenter 0.1.4
[INFO] tweaked toml for crates.io crate async-instrumenter 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-instrumenter 0.1.4 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74b671f2c53bab20f04ec7b8c54b2b5be2b1301974431da8a5702e6d0e2121bd
[INFO] running `Command { std: "docker" "start" "-a" "74b671f2c53bab20f04ec7b8c54b2b5be2b1301974431da8a5702e6d0e2121bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74b671f2c53bab20f04ec7b8c54b2b5be2b1301974431da8a5702e6d0e2121bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b671f2c53bab20f04ec7b8c54b2b5be2b1301974431da8a5702e6d0e2121bd", kill_on_drop: false }`
[INFO] [stdout] 74b671f2c53bab20f04ec7b8c54b2b5be2b1301974431da8a5702e6d0e2121bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa12f6b64cc9897e287c423479f635bb26095c959ade943657f336341d39c626
[INFO] running `Command { std: "docker" "start" "-a" "aa12f6b64cc9897e287c423479f635bb26095c959ade943657f336341d39c626", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling async-instrumenter v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.60s
[INFO] running `Command { std: "docker" "inspect" "aa12f6b64cc9897e287c423479f635bb26095c959ade943657f336341d39c626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa12f6b64cc9897e287c423479f635bb26095c959ade943657f336341d39c626", kill_on_drop: false }`
[INFO] [stdout] aa12f6b64cc9897e287c423479f635bb26095c959ade943657f336341d39c626
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5437de47533779fd638c2ba9bb2d81736a6d542690753a0a68b8bc9fb95b9a8a
[INFO] running `Command { std: "docker" "start" "-a" "5437de47533779fd638c2ba9bb2d81736a6d542690753a0a68b8bc9fb95b9a8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling async-instrumenter v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "5437de47533779fd638c2ba9bb2d81736a6d542690753a0a68b8bc9fb95b9a8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5437de47533779fd638c2ba9bb2d81736a6d542690753a0a68b8bc9fb95b9a8a", kill_on_drop: false }`
[INFO] [stdout] 5437de47533779fd638c2ba9bb2d81736a6d542690753a0a68b8bc9fb95b9a8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2c69a3102d673ed3e938d4e7e8c260efd7bd8fd63a2dbbf7bacf6b727e7953f
[INFO] running `Command { std: "docker" "start" "-a" "b2c69a3102d673ed3e938d4e7e8c260efd7bd8fd63a2dbbf7bacf6b727e7953f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_instrumenter-8cf096de321c271d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async_instrumenter
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - InstrumentFuture (line 21) ... FAILED
[INFO] [stdout] test src/lib.rs - dbg_instrument (line 85) ... FAILED
[INFO] [stdout] test src/lib.rs - instrument (line 129) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - InstrumentFuture (line 21) stdout ----
[INFO] [stdout] error[E0405]: cannot find trait `Future` in this scope
[INFO] [stdout]  --> src/lib.rs:22:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |                  ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::future::Future;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `InstrumentFuture`
[INFO] [stdout]  --> src/lib.rs:23:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | let res = InstrumentFuture::new(my_fut).await;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^ use of undeclared type `InstrumentFuture`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use async_instrumenter::InstrumentFuture;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0562]: `impl Trait` is not allowed in the type of variable bindings
[INFO] [stdout]  --> src/lib.rs:22:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `impl Trait` is only allowed in arguments and return types of functions and methods
[INFO] [stdout]   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stdout]   = help: add `#![feature(impl_trait_in_bindings)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-07-05; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:23:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_21_0() {
[INFO] [stdout]   |                                      ---------------------------------- this is not `async`
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout] 4 | let res = InstrumentFuture::new(my_fut).await;
[INFO] [stdout]   |                                         ^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `foobar` in this scope
[INFO] [stdout]  --> src/lib.rs:22:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0425, E0433, E0562, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - dbg_instrument (line 85) stdout ----
[INFO] [stdout] error: cannot find macro `dbg_instrument` in this scope
[INFO] [stdout]  --> src/lib.rs:87:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | dbg_instrument!(my_fut).await;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use async_instrumenter::dbg_instrument;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `dbg_instrument` in this scope
[INFO] [stdout]  --> src/lib.rs:90:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | dbg_instrument!("custom_log_message {f}: {elapsed:?}").await;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use async_instrumenter::dbg_instrument;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Future` in this scope
[INFO] [stdout]  --> src/lib.rs:86:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |                  ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::future::Future;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0562]: `impl Trait` is not allowed in the type of variable bindings
[INFO] [stdout]  --> src/lib.rs:86:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `impl Trait` is only allowed in arguments and return types of functions and methods
[INFO] [stdout]   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stdout]   = help: add `#![feature(impl_trait_in_bindings)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-07-05; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:87:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_85_0() {
[INFO] [stdout]   |                                      ---------------------------------- this is not `async`
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout] 4 | dbg_instrument!(my_fut).await;
[INFO] [stdout]   |                         ^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:90:56
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_85_0() {
[INFO] [stdout]   |                                      ---------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 7 | dbg_instrument!("custom_log_message {f}: {elapsed:?}").await;
[INFO] [stdout]   |                                                        ^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `foobar` in this scope
[INFO] [stdout]  --> src/lib.rs:86:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0425, E0562, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - instrument (line 129) stdout ----
[INFO] [stdout] error: cannot find macro `instrument` in this scope
[INFO] [stdout]  --> src/lib.rs:131:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | instrument!(my_fut).await;
[INFO] [stdout]   | ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use async_instrumenter::instrument;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `instrument` in this scope
[INFO] [stdout]  --> src/lib.rs:134:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | instrument!("custom_log_message {f}: {elapsed:?}").await;
[INFO] [stdout]   | ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use async_instrumenter::instrument;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Future` in this scope
[INFO] [stdout]  --> src/lib.rs:130:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |                  ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::future::Future;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0562]: `impl Trait` is not allowed in the type of variable bindings
[INFO] [stdout]  --> src/lib.rs:130:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `impl Trait` is only allowed in arguments and return types of functions and methods
[INFO] [stdout]   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
[INFO] [stdout]   = help: add `#![feature(impl_trait_in_bindings)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2025-07-05; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:131:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_129_0() {
[INFO] [stdout]   |                                      ----------------------------------- this is not `async`
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout] 4 | instrument!(my_fut).await;
[INFO] [stdout]   |                     ^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0728]: `await` is only allowed inside `async` functions and blocks
[INFO] [stdout]  --> src/lib.rs:134:52
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_129_0() {
[INFO] [stdout]   |                                      ----------------------------------- this is not `async`
[INFO] [stdout] ...
[INFO] [stdout] 7 | instrument!("custom_log_message {f}: {elapsed:?}").await;
[INFO] [stdout]   |                                                    ^^^^^ only allowed inside `async` functions and blocks
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `foobar` in this scope
[INFO] [stdout]  --> src/lib.rs:130:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | let my_fut: impl Future<Output = ()> = foobar();
[INFO] [stdout]   |                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0425, E0562, E0728.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - InstrumentFuture (line 21)
[INFO] [stdout]     src/lib.rs - dbg_instrument (line 85)
[INFO] [stdout]     src/lib.rs - instrument (line 129)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b2c69a3102d673ed3e938d4e7e8c260efd7bd8fd63a2dbbf7bacf6b727e7953f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2c69a3102d673ed3e938d4e7e8c260efd7bd8fd63a2dbbf7bacf6b727e7953f", kill_on_drop: false }`
[INFO] [stdout] b2c69a3102d673ed3e938d4e7e8c260efd7bd8fd63a2dbbf7bacf6b727e7953f
