[INFO] fetching crate s3c 0.1.0...
[INFO] checking s3c-0.1.0 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate s3c 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate s3c 0.1.0 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate s3c 0.1.0
[INFO] finished tweaking crates.io crate s3c 0.1.0
[INFO] tweaked toml for crates.io crate s3c 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate s3c 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded csv v1.2.1
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f48bdb4829b26ee3d00fdeb23076071d53bafa6fe4121c117dca4725b301faac
[INFO] running `Command { std: "docker" "start" "-a" "f48bdb4829b26ee3d00fdeb23076071d53bafa6fe4121c117dca4725b301faac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f48bdb4829b26ee3d00fdeb23076071d53bafa6fe4121c117dca4725b301faac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f48bdb4829b26ee3d00fdeb23076071d53bafa6fe4121c117dca4725b301faac", kill_on_drop: false }`
[INFO] [stdout] f48bdb4829b26ee3d00fdeb23076071d53bafa6fe4121c117dca4725b301faac
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98b91891b9d70cc92e5cfe5bb5779016b2c48f391530b4ba2836f914b5d568b8
[INFO] running `Command { std: "docker" "start" "-a" "98b91891b9d70cc92e5cfe5bb5779016b2c48f391530b4ba2836f914b5d568b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling openssl v0.10.50
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking num-traits v0.2.15
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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 v0.1.37
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking shlex v1.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling openssl-sys v0.9.85
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking sha2 v0.9.9
[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" "98b91891b9d70cc92e5cfe5bb5779016b2c48f391530b4ba2836f914b5d568b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b91891b9d70cc92e5cfe5bb5779016b2c48f391530b4ba2836f914b5d568b8", kill_on_drop: false }`
[INFO] [stdout] 98b91891b9d70cc92e5cfe5bb5779016b2c48f391530b4ba2836f914b5d568b8
