[INFO] fetching crate s3-signer 0.3.2...
[INFO] checking s3-signer-0.3.2 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate s3-signer 0.3.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate s3-signer 0.3.2
[INFO] finished tweaking crates.io crate s3-signer 0.3.2
[INFO] tweaked toml for crates.io crate s3-signer 0.3.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate s3-signer 0.3.2 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate s3-signer 0.3.2 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-stream v0.1.11
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.9
[INFO] [stderr]   Downloaded async-trait v0.1.61
[INFO] [stderr]   Downloaded async-executor v1.5.0
[INFO] [stderr]   Downloaded atomic-waker v1.1.0
[INFO] [stderr]   Downloaded async-task v4.3.0
[INFO] [stderr]   Downloaded polling v2.5.2
[INFO] [stderr]   Downloaded openssl v0.10.45
[INFO] [stderr]   Downloaded security-framework v2.7.0
[INFO] [stderr]   Downloaded rusoto_s3 v0.48.0
[INFO] [stderr]   Downloaded async-lock v2.6.0
[INFO] [stderr]   Downloaded cargo-lock v8.0.3
[INFO] [stderr]   Downloaded clap_derive v3.2.18
[INFO] [stderr]   Downloaded shellexpand v2.1.2
[INFO] [stderr]   Downloaded rust-embed-impl v6.3.1
[INFO] [stderr]   Downloaded blocking v1.3.0
[INFO] [stderr]   Downloaded concurrent-queue v2.1.0
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded async-io v1.12.0
[INFO] [stderr]   Downloaded toml v0.5.10
[INFO] [stderr]   Downloaded built v0.5.2
[INFO] [stderr]   Downloaded openssl-sys v0.9.80
[INFO] [stderr]   Downloaded simple_logger v2.3.0
[INFO] [stderr]   Downloaded rust-embed-utils v7.3.0
[INFO] [stderr]   Downloaded headers v0.3.8
[INFO] [stderr]   Downloaded warp v0.3.3
[INFO] [stderr]   Downloaded async-channel v1.8.0
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
[INFO] [stderr]   Downloaded rust-embed v6.4.2
[INFO] [stderr]   Downloaded gloo-timers v0.2.5
[INFO] [stderr]   Downloaded twoway v0.1.8
[INFO] [stderr]   Downloaded multipart v0.18.0
[INFO] [stderr]   Downloaded tungstenite v0.17.3
[INFO] [stderr]   Downloaded buf_redux v0.8.4
[INFO] [stderr]   Downloaded tokio-tungstenite v0.17.2
[INFO] [stderr]   Downloaded async-std v1.12.0
[INFO] [stderr]   Downloaded utoipa-swagger-ui v3.0.2
[INFO] [stderr]   Downloaded utoipa-gen v3.0.1
[INFO] [stderr]   Downloaded utoipa v3.0.1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c655f0d7b03aad747489e7927a1c1d97d580005737754eb3f978f312dfd332d
[INFO] running `Command { std: "docker" "start" "-a" "4c655f0d7b03aad747489e7927a1c1d97d580005737754eb3f978f312dfd332d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c655f0d7b03aad747489e7927a1c1d97d580005737754eb3f978f312dfd332d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c655f0d7b03aad747489e7927a1c1d97d580005737754eb3f978f312dfd332d", kill_on_drop: false }`
[INFO] [stdout] 4c655f0d7b03aad747489e7927a1c1d97d580005737754eb3f978f312dfd332d
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 885c3426e5164321f3f03582a1740658c88364407fa9657f5ccfd558c7163d8b
[INFO] running `Command { std: "docker" "start" "-a" "885c3426e5164321f3f03582a1740658c88364407fa9657f5ccfd558c7163d8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/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] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "885c3426e5164321f3f03582a1740658c88364407fa9657f5ccfd558c7163d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885c3426e5164321f3f03582a1740658c88364407fa9657f5ccfd558c7163d8b", kill_on_drop: false }`
[INFO] [stdout] 885c3426e5164321f3f03582a1740658c88364407fa9657f5ccfd558c7163d8b