[INFO] cloning repository https://github.com/gufoe/s3-proxy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gufoe/s3-proxy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgufoe%2Fs3-proxy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgufoe%2Fs3-proxy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df49f4c6e4ae34c4082ef8de73ebb13d32eadbef
[INFO] checking gufoe/s3-proxy/df49f4c6e4ae34c4082ef8de73ebb13d32eadbef against master#d1ed52b1f5b78bf66127b670af813b84d57aeedb for pr-146562
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgufoe%2Fs3-proxy" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gufoe/s3-proxy
[INFO] finished tweaking git repo https://github.com/gufoe/s3-proxy
[INFO] tweaked toml for git repo https://github.com/gufoe/s3-proxy written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gufoe/s3-proxy on toolchain d1ed52b1f5b78bf66127b670af813b84d57aeedb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d1ed52b1f5b78bf66127b670af813b84d57aeedb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gufoe/s3-proxy 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" "+d1ed52b1f5b78bf66127b670af813b84d57aeedb" "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 serde_derive v1.0.155
[INFO] [stderr]   Downloaded rusoto_signature v0.48.0
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded zstd-safe v6.0.4+zstd.1.5.4
[INFO] [stderr]   Downloaded async-trait v0.1.66
[INFO] [stderr]   Downloaded unicode-bidi v0.3.11
[INFO] [stderr]   Downloaded toml v0.7.2
[INFO] [stderr]   Downloaded rusoto_credential v0.48.0
[INFO] [stderr]   Downloaded rusoto_core v0.48.0
[INFO] [stderr]   Downloaded rusoto_s3 v0.48.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d1ed52b1f5b78bf66127b670af813b84d57aeedb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8655af74cebb4f616ffbc8784ee29a9fcd3137d4cd793b260bd7e651e9315d6d
[INFO] running `Command { std: "docker" "start" "-a" "8655af74cebb4f616ffbc8784ee29a9fcd3137d4cd793b260bd7e651e9315d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8655af74cebb4f616ffbc8784ee29a9fcd3137d4cd793b260bd7e651e9315d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8655af74cebb4f616ffbc8784ee29a9fcd3137d4cd793b260bd7e651e9315d6d", kill_on_drop: false }`
[INFO] [stdout] 8655af74cebb4f616ffbc8784ee29a9fcd3137d4cd793b260bd7e651e9315d6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d1ed52b1f5b78bf66127b670af813b84d57aeedb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b348dd7a7a4102478ef9191a0a0e40ac3256738bcea520fa30e59ddcc0b1a729
[INFO] running `Command { std: "docker" "start" "-a" "b348dd7a7a4102478ef9191a0a0e40ac3256738bcea520fa30e59ddcc0b1a729", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling serde_derive v1.0.155
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]     Checking futures-io v0.3.27
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 unicase v2.6.0
[INFO] [stderr]    Compiling async-trait v0.1.66
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling zstd-safe v6.0.4+zstd.1.5.4
[INFO] [stderr]     Checking iana-time-zone v0.1.53
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]     Checking crypto-mac v0.11.1
[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" "b348dd7a7a4102478ef9191a0a0e40ac3256738bcea520fa30e59ddcc0b1a729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b348dd7a7a4102478ef9191a0a0e40ac3256738bcea520fa30e59ddcc0b1a729", kill_on_drop: false }`
[INFO] [stdout] b348dd7a7a4102478ef9191a0a0e40ac3256738bcea520fa30e59ddcc0b1a729