[INFO] fetching crate aws-credential-types 1.0.1...
[INFO] checking aws-credential-types-1.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate aws-credential-types 1.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate aws-credential-types 1.0.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aws-credential-types 1.0.1
[INFO] finished tweaking crates.io crate aws-credential-types 1.0.1
[INFO] tweaked toml for crates.io crate aws-credential-types 1.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 85 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded http v1.1.0
[INFO] [stderr]   Downloaded outref v0.5.1
[INFO] [stderr]   Downloaded aws-smithy-async v1.2.1
[INFO] [stderr]   Downloaded aws-smithy-runtime-api v1.3.0
[INFO] [stderr]   Downloaded aws-smithy-types v1.1.8
[INFO] [stderr]   Downloaded base64-simd v0.8.0
[INFO] [stderr]   Downloaded bytes-utils v0.1.4
[INFO] [stderr]   Downloaded vsimd v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a53722807744f4487c5e08902a1accf1cab68afc4a316e4dcf04269f026cbe61
[INFO] running `Command { std: "docker" "start" "-a" "a53722807744f4487c5e08902a1accf1cab68afc4a316e4dcf04269f026cbe61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a53722807744f4487c5e08902a1accf1cab68afc4a316e4dcf04269f026cbe61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53722807744f4487c5e08902a1accf1cab68afc4a316e4dcf04269f026cbe61", kill_on_drop: false }`
[INFO] [stdout] a53722807744f4487c5e08902a1accf1cab68afc4a316e4dcf04269f026cbe61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e5cda181e1d1b493ffda867fc649a8df605e4f39d4cff4b33e112c801dda820
[INFO] running `Command { std: "docker" "start" "-a" "9e5cda181e1d1b493ffda867fc649a8df605e4f39d4cff4b33e112c801dda820", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking vsimd v0.8.0
[INFO] [stderr]     Checking outref v0.5.1
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking bytes-utils v0.1.4
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking base64-simd v0.8.0
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking aws-smithy-types v1.1.8
[INFO] [stderr]     Checking aws-smithy-async v1.2.1
[INFO] [stderr]     Checking aws-smithy-runtime-api v1.3.0
[INFO] [stderr]     Checking aws-credential-types v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `creds` is never used
[INFO] [stdout]   --> src/credential_fn.rs:92:18
[INFO] [stdout]    |
[INFO] [stdout] 91 |     trait AnotherTrait: Send + Sync {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 92 |         async fn creds(&self) -> Credentials;
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AnotherTraitWrapper` is never constructed
[INFO] [stdout]   --> src/credential_fn.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     struct AnotherTraitWrapper<T> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.77s
[INFO] running `Command { std: "docker" "inspect" "9e5cda181e1d1b493ffda867fc649a8df605e4f39d4cff4b33e112c801dda820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5cda181e1d1b493ffda867fc649a8df605e4f39d4cff4b33e112c801dda820", kill_on_drop: false }`
[INFO] [stdout] 9e5cda181e1d1b493ffda867fc649a8df605e4f39d4cff4b33e112c801dda820
[INFO] checking aws-credential-types-1.0.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate aws-credential-types 1.0.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate aws-credential-types 1.0.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aws-credential-types 1.0.1
[INFO] finished tweaking crates.io crate aws-credential-types 1.0.1
[INFO] tweaked toml for crates.io crate aws-credential-types 1.0.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 396c8302e0a6b15e4f687bc83d8007ed44a2487e0eeba65d0cbad7a7d873f82b
[INFO] running `Command { std: "docker" "start" "-a" "396c8302e0a6b15e4f687bc83d8007ed44a2487e0eeba65d0cbad7a7d873f82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "396c8302e0a6b15e4f687bc83d8007ed44a2487e0eeba65d0cbad7a7d873f82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "396c8302e0a6b15e4f687bc83d8007ed44a2487e0eeba65d0cbad7a7d873f82b", kill_on_drop: false }`
[INFO] [stdout] 396c8302e0a6b15e4f687bc83d8007ed44a2487e0eeba65d0cbad7a7d873f82b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7645bc7194636aeb1b5f6abde9a89e1375db6ad4b361234f16738c1858d017b3
[INFO] running `Command { std: "docker" "start" "-a" "7645bc7194636aeb1b5f6abde9a89e1375db6ad4b361234f16738c1858d017b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking vsimd v0.8.0
[INFO] [stderr]     Checking outref v0.5.1
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking bytes-utils v0.1.4
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking base64-simd v0.8.0
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking aws-smithy-types v1.1.8
[INFO] [stderr]     Checking aws-smithy-async v1.2.1
[INFO] [stderr]     Checking aws-smithy-runtime-api v1.3.0
[INFO] [stderr]     Checking aws-credential-types v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `creds` is never used
[INFO] [stdout]   --> src/credential_fn.rs:92:18
[INFO] [stdout]    |
[INFO] [stdout] 91 |     trait AnotherTrait: Send + Sync {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] 92 |         async fn creds(&self) -> Credentials;
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AnotherTraitWrapper` is never constructed
[INFO] [stdout]   --> src/credential_fn.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     struct AnotherTraitWrapper<T> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `Command { std: "docker" "inspect" "7645bc7194636aeb1b5f6abde9a89e1375db6ad4b361234f16738c1858d017b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7645bc7194636aeb1b5f6abde9a89e1375db6ad4b361234f16738c1858d017b3", kill_on_drop: false }`
[INFO] [stdout] 7645bc7194636aeb1b5f6abde9a89e1375db6ad4b361234f16738c1858d017b3