[INFO] fetching crate req 0.6.2...
[INFO] building req-0.6.2 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate req 0.6.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate req 0.6.2
[INFO] finished tweaking crates.io crate req 0.6.2
[INFO] tweaked toml for crates.io crate req 0.6.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate req 0.6.2 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate req 0.6.2 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cookie v0.17.0
[INFO] [stderr]   Downloaded colored_json v3.1.0
[INFO] [stderr]   Downloaded httpclient v0.15.1
[INFO] [stderr]   Downloaded urlencoding v2.1.2
[INFO] [stderr]   Downloaded bumpalo v3.12.2
[INFO] [stderr]   Downloaded regex v1.8.1
[INFO] [stderr]   Downloaded regex-syntax v0.7.1
[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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d76254e8a9e69e548f8f5e0406c8c334ebec4a97f32f05f8e3d99ff366e86326
[INFO] running `Command { std: "docker" "start" "-a" "d76254e8a9e69e548f8f5e0406c8c334ebec4a97f32f05f8e3d99ff366e86326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d76254e8a9e69e548f8f5e0406c8c334ebec4a97f32f05f8e3d99ff366e86326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d76254e8a9e69e548f8f5e0406c8c334ebec4a97f32f05f8e3d99ff366e86326", kill_on_drop: false }`
[INFO] [stdout] d76254e8a9e69e548f8f5e0406c8c334ebec4a97f32f05f8e3d99ff366e86326
[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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e36750a1fe827d987bb7bb7b585a641bb8ad0a4048a9ebcd3b9577fe643f56b9
[INFO] running `Command { std: "docker" "start" "-a" "e36750a1fe827d987bb7bb7b585a641bb8ad0a4048a9ebcd3b9577fe643f56b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]    Compiling base64 v0.21.0
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling time-macros v0.2.9
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]    Compiling cookie v0.17.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/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]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling rustls-pemfile v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling urlencoding v2.1.2
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling rustls-native-certs v0.6.2
[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" "e36750a1fe827d987bb7bb7b585a641bb8ad0a4048a9ebcd3b9577fe643f56b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e36750a1fe827d987bb7bb7b585a641bb8ad0a4048a9ebcd3b9577fe643f56b9", kill_on_drop: false }`
[INFO] [stdout] e36750a1fe827d987bb7bb7b585a641bb8ad0a4048a9ebcd3b9577fe643f56b9