[INFO] fetching crate erdb 0.2.2...
[INFO] testing erdb-0.2.2 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate erdb 0.2.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate erdb 0.2.2
[INFO] finished tweaking crates.io crate erdb 0.2.2
[INFO] tweaked toml for crates.io crate erdb 0.2.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate erdb 0.2.2 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate erdb 0.2.2 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf83fb0f726a98caeecb62f098115101ff37bd57d308bf4f2f16c33a1b6da68c
[INFO] running `Command { std: "docker" "start" "-a" "bf83fb0f726a98caeecb62f098115101ff37bd57d308bf4f2f16c33a1b6da68c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf83fb0f726a98caeecb62f098115101ff37bd57d308bf4f2f16c33a1b6da68c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf83fb0f726a98caeecb62f098115101ff37bd57d308bf4f2f16c33a1b6da68c", kill_on_drop: false }`
[INFO] [stdout] bf83fb0f726a98caeecb62f098115101ff37bd57d308bf4f2f16c33a1b6da68c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2906a798cec805e1ac1fe18ca79d5b333154142aacefd84f7d55fc870a3e4bff
[INFO] running `Command { std: "docker" "start" "-a" "2906a798cec805e1ac1fe18ca79d5b333154142aacefd84f7d55fc870a3e4bff", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling slab v0.4.6
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling event-listener v2.5.2
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 anyhow v1.0.56
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling rusb v0.9.1
[INFO] [stderr]    Compiling async-task v4.2.0
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[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" "2906a798cec805e1ac1fe18ca79d5b333154142aacefd84f7d55fc870a3e4bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2906a798cec805e1ac1fe18ca79d5b333154142aacefd84f7d55fc870a3e4bff", kill_on_drop: false }`
[INFO] [stdout] 2906a798cec805e1ac1fe18ca79d5b333154142aacefd84f7d55fc870a3e4bff