[INFO] fetching crate heap-inspector 0.0.4...
[INFO] testing heap-inspector-0.0.4 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate heap-inspector 0.0.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate heap-inspector 0.0.4
[INFO] finished tweaking crates.io crate heap-inspector 0.0.4
[INFO] tweaked toml for crates.io crate heap-inspector 0.0.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate heap-inspector 0.0.4 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate heap-inspector 0.0.4 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fae427c121849f535355e5252e2b4453b0008dffc312cdd25387e0855b2131a7
[INFO] running `Command { std: "docker" "start" "-a" "fae427c121849f535355e5252e2b4453b0008dffc312cdd25387e0855b2131a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fae427c121849f535355e5252e2b4453b0008dffc312cdd25387e0855b2131a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae427c121849f535355e5252e2b4453b0008dffc312cdd25387e0855b2131a7", kill_on_drop: false }`
[INFO] [stdout] fae427c121849f535355e5252e2b4453b0008dffc312cdd25387e0855b2131a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46cd4489b8b910a3809b34c43a4b4d781c1ada6fa817b97a79b8323e6207fcd2
[INFO] running `Command { std: "docker" "start" "-a" "46cd4489b8b910a3809b34c43a4b4d781c1ada6fa817b97a79b8323e6207fcd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling serde v1.0.149
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling linux-raw-sys v0.1.3
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustls-pemfile v0.2.1
[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" "46cd4489b8b910a3809b34c43a4b4d781c1ada6fa817b97a79b8323e6207fcd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46cd4489b8b910a3809b34c43a4b4d781c1ada6fa817b97a79b8323e6207fcd2", kill_on_drop: false }`
[INFO] [stdout] 46cd4489b8b910a3809b34c43a4b4d781c1ada6fa817b97a79b8323e6207fcd2