[INFO] fetching crate tower 0.4.8...
[INFO] testing tower-0.4.8 against 1.54.0 for beta-1.55-1
[INFO] extracting crate tower 0.4.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tower 0.4.8 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower 0.4.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tower 0.4.8
[INFO] tweaked toml for crates.io crate tower 0.4.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate tower 0.4.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hdrhistogram v6.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8049e364ff111d6806d3000b0d7bb77eb7974038f8ea7d2d2374caf2053cdc78
[INFO] running `Command { std: "docker" "start" "-a" "8049e364ff111d6806d3000b0d7bb77eb7974038f8ea7d2d2374caf2053cdc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8049e364ff111d6806d3000b0d7bb77eb7974038f8ea7d2d2374caf2053cdc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8049e364ff111d6806d3000b0d7bb77eb7974038f8ea7d2d2374caf2053cdc78", kill_on_drop: false }`
[INFO] [stdout] 8049e364ff111d6806d3000b0d7bb77eb7974038f8ea7d2d2374caf2053cdc78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efc6ef13910c24385a3539d32feac46e8d62c4c649e628b527525f6605a6d390
[INFO] running `Command { std: "docker" "start" "-a" "efc6ef13910c24385a3539d32feac46e8d62c4c649e628b527525f6605a6d390", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling tower v0.4.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.19s
[INFO] running `Command { std: "docker" "inspect" "efc6ef13910c24385a3539d32feac46e8d62c4c649e628b527525f6605a6d390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc6ef13910c24385a3539d32feac46e8d62c4c649e628b527525f6605a6d390", kill_on_drop: false }`
[INFO] [stdout] efc6ef13910c24385a3539d32feac46e8d62c4c649e628b527525f6605a6d390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76a2dd5c04cb9b53cd7bec9cb6a792f0250610d8587359efec1b6b3bbd0be0e5
[INFO] running `Command { std: "docker" "start" "-a" "76a2dd5c04cb9b53cd7bec9cb6a792f0250610d8587359efec1b6b3bbd0be0e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling async-stream v0.3.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling hdrhistogram v6.3.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling tokio-stream v0.1.6
[INFO] [stderr]    Compiling tracing-subscriber v0.2.18
[INFO] [stderr]    Compiling tokio-test v0.4.2
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling tower-test v0.4.0
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling tower v0.4.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.23s
[INFO] running `Command { std: "docker" "inspect" "76a2dd5c04cb9b53cd7bec9cb6a792f0250610d8587359efec1b6b3bbd0be0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a2dd5c04cb9b53cd7bec9cb6a792f0250610d8587359efec1b6b3bbd0be0e5", kill_on_drop: false }`
[INFO] [stdout] 76a2dd5c04cb9b53cd7bec9cb6a792f0250610d8587359efec1b6b3bbd0be0e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e3a009abcfc60ba1dea841563b67fba6d656741031389c02a486333b0a86ddd6
[INFO] running `Command { std: "docker" "start" "-a" "e3a009abcfc60ba1dea841563b67fba6d656741031389c02a486333b0a86ddd6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tower-f4679778db692985)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/balance/main.rs (/opt/rustwide/target/debug/deps/balance-986977d600492867)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/buffer/main.rs (/opt/rustwide/target/debug/deps/buffer-c08d13c2bb2332df)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running tests/builder.rs (/opt/rustwide/target/debug/deps/builder-adc1cfd6232b39ab)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/hedge/main.rs (/opt/rustwide/target/debug/deps/hedge-8580c58b9156330f)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/limit/main.rs (/opt/rustwide/target/debug/deps/limit-a2179b53d03b7a74)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/load_shed/main.rs (/opt/rustwide/target/debug/deps/load_shed-d2e93c3084dba908)
[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] [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] [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] [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] [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]      Running tests/ready_cache/main.rs (/opt/rustwide/target/debug/deps/ready_cache-92ba8d0eb8f62cab)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/retry/main.rs (/opt/rustwide/target/debug/deps/retry-c35cb527e86ee4db)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/spawn_ready/main.rs (/opt/rustwide/target/debug/deps/spawn_ready-60d7a4d3b2b4c652)
[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] [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] [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] [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]      Running tests/steer/main.rs (/opt/rustwide/target/debug/deps/steer-f49086e347b99d70)
[INFO] [stderr]      Running tests/support.rs (/opt/rustwide/target/debug/deps/support-7526fc908a10574a)
[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]      Running tests/util/main.rs (/opt/rustwide/target/debug/deps/util-2883aee022483209)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tower
[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] [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] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/builder/mod.rs - builder::ServiceBuilder<L>::check_clone (line 550) ... FAILED
[INFO] [stdout] test src/builder/mod.rs - builder::ServiceBuilder<L>::check_service (line 622) ... FAILED
[INFO] [stdout] test src/builder/mod.rs - builder::ServiceBuilder (line 72) ... ok
[INFO] [stdout] test src/builder/mod.rs - builder::ServiceBuilder (line 89) ... ok
[INFO] [stdout] test src/builder/mod.rs - builder::ServiceBuilder (line 51) ... ok
[INFO] [stdout] test src/builder/mod.rs - builder::ServiceBuilder<L>::check_service_clone (line 584) ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/builder/mod.rs - builder::ServiceBuilder (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/builder/mod.rs - builder::ServiceBuilder<L>::check_clone (line 550) stdout ----
[INFO] [stdout] error[E0599]: no method named `map_request` found for struct `ServiceBuilder` in the current scope
[INFO] [stdout]  --> src/builder/mod.rs:555:6
[INFO] [stdout]   |
[INFO] [stdout] 8 |     .map_request(|request: String| {
[INFO] [stdout]   |      ^^^^^^^^^^^ method not found in `ServiceBuilder<Identity>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/builder/mod.rs - builder::ServiceBuilder<L>::check_service (line 622) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `tower::ServiceExt`
[INFO] [stdout]  --> src/builder/mod.rs:625:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tower::{Service, ServiceExt};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout]   |                      |
[INFO] [stdout]   |                      no `ServiceExt` in the root
[INFO] [stdout]   |                      help: a similar name exists in the module: `Service`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_util`
[INFO] [stdout]   --> src/builder/mod.rs:633:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |   type Future = futures_util::future::Ready<Result<Response, Error>>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `map_response` found for struct `ServiceBuilder` in the current scope
[INFO] [stdout]   --> src/builder/mod.rs:657:6
[INFO] [stdout]    |
[INFO] [stdout] 38 |     .map_response(|response: Response| WrappedResponse(response))
[INFO] [stdout]    |      ^^^^^^^^^^^^ method not found in `ServiceBuilder<Identity>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/builder/mod.rs - builder::ServiceBuilder<L>::check_service_clone (line 584) stdout ----
[INFO] [stdout] error[E0599]: no method named `map_request` found for struct `ServiceBuilder` in the current scope
[INFO] [stdout]   --> src/builder/mod.rs:592:6
[INFO] [stdout]    |
[INFO] [stdout] 11 |     .map_request(|request: String| {
[INFO] [stdout]    |      ^^^^^^^^^^^ method not found in `ServiceBuilder<Identity>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/builder/mod.rs - builder::ServiceBuilder<L>::check_clone (line 550)
[INFO] [stdout]     src/builder/mod.rs - builder::ServiceBuilder<L>::check_service (line 622)
[INFO] [stdout]     src/builder/mod.rs - builder::ServiceBuilder<L>::check_service_clone (line 584)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.77s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e3a009abcfc60ba1dea841563b67fba6d656741031389c02a486333b0a86ddd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3a009abcfc60ba1dea841563b67fba6d656741031389c02a486333b0a86ddd6", kill_on_drop: false }`
[INFO] [stdout] e3a009abcfc60ba1dea841563b67fba6d656741031389c02a486333b0a86ddd6
