[INFO] fetching crate awssnapio 0.1.0...
[INFO] checking awssnapio-0.1.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate awssnapio 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate awssnapio 0.1.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate awssnapio 0.1.0
[INFO] finished tweaking crates.io crate awssnapio 0.1.0
[INFO] tweaked toml for crates.io crate awssnapio 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate awssnapio 0.1.0 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded digest v0.10.5
[INFO] [stderr]   Downloaded block-buffer v0.10.3
[INFO] [stderr]   Downloaded hyper-rustls v0.23.1
[INFO] [stderr]   Downloaded aws-smithy-client v0.51.0
[INFO] [stderr]   Downloaded serde v1.0.147
[INFO] [stderr]   Downloaded rustls v0.20.7
[INFO] [stderr]   Downloaded syn v1.0.103
[INFO] [stderr]   Downloaded num_cpus v1.14.0
[INFO] [stderr]   Downloaded scratch v1.0.2
[INFO] [stderr]   Downloaded doc-comment v0.3.3
[INFO] [stderr]   Downloaded urlencoding v2.1.2
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.2
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.80
[INFO] [stderr]   Downloaded snafu v0.7.3
[INFO] [stderr]   Downloaded aws-smithy-http v0.51.0
[INFO] [stderr]   Downloaded cxx v1.0.80
[INFO] [stderr]   Downloaded fern v0.5.9
[INFO] [stderr]   Downloaded cc v1.0.74
[INFO] [stderr]   Downloaded cxx-build v1.0.80
[INFO] [stderr]   Downloaded aws-config v0.51.0
[INFO] [stderr]   Downloaded hyper v0.14.22
[INFO] [stderr]   Downloaded aws-http v0.51.0
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded serde_json v1.0.89
[INFO] [stderr]   Downloaded aws-sigv4 v0.51.0
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] [stderr]   Downloaded tokio-stream v0.1.11
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.47
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded aws-smithy-types v0.51.0
[INFO] [stderr]   Downloaded time-macros v0.2.5
[INFO] [stderr]   Downloaded aws-types v0.51.0
[INFO] [stderr]   Downloaded aws-smithy-http-tower v0.51.0
[INFO] [stderr]   Downloaded aws-sdk-sso v0.21.0
[INFO] [stderr]   Downloaded bytes-utils v0.1.3
[INFO] [stderr]   Downloaded aws-smithy-async v0.51.0
[INFO] [stderr]   Downloaded aws-sdk-sts v0.21.0
[INFO] [stderr]   Downloaded aws-smithy-query v0.51.0
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded aws-smithy-json v0.51.0
[INFO] [stderr]   Downloaded sha2 v0.10.6
[INFO] [stderr]   Downloaded snafu-derive v0.7.3
[INFO] [stderr]   Downloaded time v0.3.16
[INFO] [stderr]   Downloaded os_str_bytes v6.3.1
[INFO] [stderr]   Downloaded aws-smithy-xml v0.51.0
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.80
[INFO] [stderr]   Downloaded aws-endpoint v0.51.0
[INFO] [stderr]   Downloaded link-cplusplus v1.0.7
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.1
[INFO] [stderr]   Downloaded webpki v0.22.0
[INFO] [stderr]   Downloaded aws-sdk-ebs v0.21.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.23
[INFO] [stderr]   Downloaded xmlparser v0.13.5
[INFO] [stderr]   Downloaded aws-sig-auth v0.51.0
[INFO] [stderr]   Downloaded aws-sdk-ec2 v0.21.0
[INFO] [stderr]   Downloaded windows v0.43.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9640b728517448ae640b4a46e274457d133f1cdf7f3de26248741b95a31c542d
[INFO] running `Command { std: "docker" "start" "-a" "9640b728517448ae640b4a46e274457d133f1cdf7f3de26248741b95a31c542d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9640b728517448ae640b4a46e274457d133f1cdf7f3de26248741b95a31c542d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9640b728517448ae640b4a46e274457d133f1cdf7f3de26248741b95a31c542d", kill_on_drop: false }`
[INFO] [stdout] 9640b728517448ae640b4a46e274457d133f1cdf7f3de26248741b95a31c542d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e09466002f49fc63c28fa205ce76e7d12f3d0d8a10783d23eebdf529d65e80b
[INFO] running `Command { std: "docker" "start" "-a" "3e09466002f49fc63c28fa205ce76e7d12f3d0d8a10783d23eebdf529d65e80b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3e09466002f49fc63c28fa205ce76e7d12f3d0d8a10783d23eebdf529d65e80b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e09466002f49fc63c28fa205ce76e7d12f3d0d8a10783d23eebdf529d65e80b", kill_on_drop: false }`
[INFO] [stdout] 3e09466002f49fc63c28fa205ce76e7d12f3d0d8a10783d23eebdf529d65e80b
