[INFO] cloning repository https://github.com/dmrolfs/proctor-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmrolfs/proctor-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmrolfs%2Fproctor-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmrolfs%2Fproctor-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 345fe3c5b075f64a594ffbcc00f03629996f4bcb
[INFO] testing dmrolfs/proctor-rs against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmrolfs%2Fproctor-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dmrolfs/proctor-rs
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/dmrolfs/proctor-rs
[INFO] tweaked toml for git repo https://github.com/dmrolfs/proctor-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dmrolfs/proctor-rs on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dmrolfs/proctor-rs 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing dmrolfs/proctor-rs against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmrolfs%2Fproctor-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dmrolfs/proctor-rs
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/dmrolfs/proctor-rs
[INFO] tweaked toml for git repo https://github.com/dmrolfs/proctor-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dmrolfs/proctor-rs on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dmrolfs/proctor-rs 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wiremock v0.5.15
[INFO] [stderr]   Downloaded frunk_proc_macros_impl v0.1.0
[INFO] [stderr]   Downloaded dashmap v5.2.0
[INFO] [stderr]   Downloaded futures-macro v0.3.24
[INFO] [stderr]   Downloaded flexbuffers v2.0.0
[INFO] [stderr]   Downloaded tailcall-impl v0.1.6
[INFO] [stderr]   Downloaded futures-executor v0.3.24
[INFO] [stderr]   Downloaded frunk_proc_macros v0.1.0
[INFO] [stderr]   Downloaded frunk v0.4.0
[INFO] [stderr]   Downloaded ciborium v0.2.0
[INFO] [stderr]   Downloaded frunk_core v0.4.0
[INFO] [stderr]   Downloaded textwrap v0.15.1
[INFO] [stderr]   Downloaded cast_trait_object v0.1.3
[INFO] [stderr]   Downloaded os_str_bytes v6.3.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.11
[INFO] [stderr]   Downloaded cast_trait_object_macros v0.1.3
[INFO] [stderr]   Downloaded ciborium-ll v0.2.0
[INFO] [stderr]   Downloaded frunk_proc_macro_helpers v0.1.0
[INFO] [stderr]   Downloaded simba v0.6.0
[INFO] [stderr]   Downloaded clap v4.0.12
[INFO] [stderr]   Downloaded serde_test v1.0.145
[INFO] [stderr]   Downloaded criterion v0.4.0
[INFO] [stderr]   Downloaded scratch v1.0.2
[INFO] [stderr]   Downloaded cxx v1.0.78
[INFO] [stderr]   Downloaded pest v2.4.0
[INFO] [stderr]   Downloaded pest_derive v2.4.0
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded pprof v0.10.1
[INFO] [stderr]   Downloaded polar-core v0.26.2
[INFO] [stderr]   Downloaded clap v3.2.22
[INFO] [stderr]   Downloaded quick-xml v0.23.1
[INFO] [stderr]   Downloaded handlebars v4.3.5
[INFO] [stderr]   Downloaded backtrace v0.3.66
[INFO] [stderr]   Downloaded lalrpop v0.19.8
[INFO] [stderr]   Downloaded cpp_demangle v0.3.5
[INFO] [stderr]   Downloaded path-dedot v3.0.17
[INFO] [stderr]   Downloaded object v0.29.0
[INFO] [stderr]   Downloaded reqwest v0.11.12
[INFO] [stderr]   Downloaded inferno v0.11.9
[INFO] [stderr]   Downloaded wide v0.7.5
[INFO] [stderr]   Downloaded gimli v0.26.2
[INFO] [stderr]   Downloaded procfs v0.12.0
[INFO] [stderr]   Downloaded time v0.3.15
[INFO] [stderr]   Downloaded symbolic-demangle v9.2.1
[INFO] [stderr]   Downloaded tracing-bunyan-formatter v0.3.4
[INFO] [stderr]   Downloaded pretty_assertions v1.3.0
[INFO] [stderr]   Downloaded stretto v0.7.1
[INFO] [stderr]   Downloaded reqwest-retry v0.1.5
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.4
[INFO] [stderr]   Downloaded serde_yaml v0.9.13
[INFO] [stderr]   Downloaded nalgebra v0.29.0
[INFO] [stderr]   Downloaded libm v0.2.5
[INFO] [stderr]   Downloaded oso-derive v0.26.2
[INFO] [stderr]   Downloaded oso v0.26.2
[INFO] [stderr]   Downloaded polling v2.3.0
[INFO] [stderr]   Downloaded tokio-stream v0.1.10
[INFO] [stderr]   Downloaded str_stack v0.1.0
[INFO] [stderr]   Downloaded memmap2 v0.5.7
[INFO] [stderr]   Downloaded symbolic-common v9.2.1
[INFO] [stderr]   Downloaded rs-snowflake v0.6.0
[INFO] [stderr]   Downloaded output_vt100 v0.1.3
[INFO] [stderr]   Downloaded reqwest-middleware v0.1.6
[INFO] [stderr]   Downloaded task-local-extensions v0.1.3
[INFO] [stderr]   Downloaded iana-time-zone-haiku v0.1.0
[INFO] [stderr]   Downloaded iana-time-zone v0.1.51
[INFO] [stderr]   Downloaded serde_with_macros v2.0.1
[INFO] [stderr]   Downloaded atomic v0.5.1
[INFO] [stderr]   Downloaded async-stream v0.3.3
[INFO] [stderr]   Downloaded tokio-test v0.4.2
[INFO] [stderr]   Downloaded tracing-flame v0.2.0
[INFO] [stderr]   Downloaded string_cache v0.8.4
[INFO] [stderr]   Downloaded smol_str v0.1.23
[INFO] [stderr]   Downloaded tailcall v0.1.6
[INFO] [stderr]   Downloaded ctor v0.1.23
[INFO] [stderr]   Downloaded prometheus v0.13.2
[INFO] [stderr]   Downloaded retry-policies v0.1.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.78
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.78
[INFO] [stderr]   Downloaded darling_core v0.14.1
[INFO] [stderr]   Downloaded darling_macro v0.14.1
[INFO] [stderr]   Downloaded darling v0.14.1
[INFO] [stderr]   Downloaded nalgebra-macros v0.1.0
[INFO] [stderr]   Downloaded num-complex v0.4.2
[INFO] [stderr]   Downloaded triomphe v0.1.8
[INFO] [stderr]   Downloaded deadpool-runtime v0.1.2
[INFO] [stderr]   Downloaded retain_mut v0.1.9
[INFO] [stderr]   Downloaded deadpool v0.9.5
[INFO] [stderr]   Downloaded pest_meta v2.4.0
[INFO] [stderr]   Downloaded indoc v1.0.7
[INFO] [stderr]   Downloaded lalrpop-util v0.19.8
[INFO] [stderr]   Downloaded strum_macros v0.23.1
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded findshlibs v0.10.2
[INFO] [stderr]   Downloaded rgb v0.8.34
[INFO] [stderr]   Downloaded prometheus-static-metric v0.5.1
[INFO] [stderr]   Downloaded link-cplusplus v1.0.7
[INFO] [stderr]   Downloaded cxx-build v1.0.78
[INFO] [stderr]   Downloaded async-stream-impl v0.3.3
[INFO] [stderr]   Downloaded async-io v1.9.0
[INFO] [stderr]   Downloaded xxhash-rust v0.8.6
[INFO] [stderr]   Downloaded safe_arch v0.6.0
[INFO] [stderr]   Downloaded statrs v0.16.0
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded rustversion v1.0.9
[INFO] [stderr]   Downloaded path-absolutize v3.0.13
[INFO] [stderr]   Downloaded config v0.13.2
[INFO] [stderr]   Downloaded wg v0.3.1
[INFO] [stderr]   Downloaded ciborium-io v0.2.0
[INFO] [stderr]   Downloaded num-format v0.4.3
[INFO] [stderr]   Downloaded serde_json v1.0.86
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded trim-margin v0.1.0
[INFO] [stderr]   Downloaded enum-display-derive v0.1.1
[INFO] [stderr]   Downloaded serde_with v2.0.1
[INFO] [stderr]   Downloaded frunk_derives v0.4.0
[INFO] [stderr]   Downloaded pest_generator v2.4.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.76
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded anyhow v1.0.65
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddf63c7f03310cd1c8418d4a148aa5fdd9364811032a4e1b7bc95b76eac9f62a
[INFO] running `Command { std: "docker" "start" "-a" "ddf63c7f03310cd1c8418d4a148aa5fdd9364811032a4e1b7bc95b76eac9f62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddf63c7f03310cd1c8418d4a148aa5fdd9364811032a4e1b7bc95b76eac9f62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf63c7f03310cd1c8418d4a148aa5fdd9364811032a4e1b7bc95b76eac9f62a", kill_on_drop: false }`
[INFO] [stdout] ddf63c7f03310cd1c8418d4a148aa5fdd9364811032a4e1b7bc95b76eac9f62a
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e40a6e42853e79a49a60647728a2c5b0f99845b2a658382945e243317df8f7d
[INFO] running `Command { std: "docker" "start" "-a" "5e40a6e42853e79a49a60647728a2c5b0f99845b2a658382945e243317df8f7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-sink v0.3.24
[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 cc v1.0.73
[INFO] [stderr]    Compiling futures-io v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.45
[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" "5e40a6e42853e79a49a60647728a2c5b0f99845b2a658382945e243317df8f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e40a6e42853e79a49a60647728a2c5b0f99845b2a658382945e243317df8f7d", kill_on_drop: false }`
[INFO] [stdout] 5e40a6e42853e79a49a60647728a2c5b0f99845b2a658382945e243317df8f7d