[INFO] cloning repository https://github.com/erikh/nsbench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/erikh/nsbench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikh%2Fnsbench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikh%2Fnsbench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3965f1b803ad5c2e4f068aa5d26e299b4a1ed59e
[INFO] checking erikh/nsbench/3965f1b803ad5c2e4f068aa5d26e299b4a1ed59e against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikh%2Fnsbench" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/erikh/nsbench on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/erikh/nsbench
[INFO] finished tweaking git repo https://github.com/erikh/nsbench
[INFO] tweaked toml for git repo https://github.com/erikh/nsbench written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/erikh/nsbench 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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trust-dns-resolver v0.22.0
[INFO] [stderr]   Downloaded trust-dns-proto v0.22.0
[INFO] [stderr]   Downloaded quote v1.0.27
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded tracing-attributes v0.1.24
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded syn v2.0.16
[INFO] [stderr]   Downloaded argh_derive v0.1.10
[INFO] [stderr]   Downloaded ipconfig v0.3.1
[INFO] [stderr]   Downloaded enum-as-inner v0.5.1
[INFO] [stderr]   Downloaded libc v0.2.144
[INFO] [stderr]   Downloaded argh_shared v0.1.10
[INFO] [stderr]   Downloaded argh v0.1.10
[INFO] [stderr]   Downloaded widestring v0.5.1
[INFO] [stderr]   Downloaded tokio v1.28.1
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc7a762a3775fe0558caaf6365015dbdeebce012368441f621a2615d9a083d13
[INFO] running `Command { std: "docker" "start" "-a" "fc7a762a3775fe0558caaf6365015dbdeebce012368441f621a2615d9a083d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc7a762a3775fe0558caaf6365015dbdeebce012368441f621a2615d9a083d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc7a762a3775fe0558caaf6365015dbdeebce012368441f621a2615d9a083d13", kill_on_drop: false }`
[INFO] [stdout] fc7a762a3775fe0558caaf6365015dbdeebce012368441f621a2615d9a083d13
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5aa37dddc2b7923ba8c8fb27cd334dd43bb1f413c44ab59ad6fe0d5b5e24ed5
[INFO] running `Command { std: "docker" "start" "-a" "d5aa37dddc2b7923ba8c8fb27cd334dd43bb1f413c44ab59ad6fe0d5b5e24ed5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking slab v0.4.8
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]     Checking data-encoding v2.3.3
[INFO] [stderr]    Compiling argh_shared v0.1.10
[INFO] [stderr]     Checking lru-cache v0.1.2
[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] [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" "d5aa37dddc2b7923ba8c8fb27cd334dd43bb1f413c44ab59ad6fe0d5b5e24ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5aa37dddc2b7923ba8c8fb27cd334dd43bb1f413c44ab59ad6fe0d5b5e24ed5", kill_on_drop: false }`
[INFO] [stdout] d5aa37dddc2b7923ba8c8fb27cd334dd43bb1f413c44ab59ad6fe0d5b5e24ed5