[INFO] cloning repository https://github.com/realtyem/synapse-unraid
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realtyem/synapse-unraid" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealtyem%2Fsynapse-unraid", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealtyem%2Fsynapse-unraid'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf752eeaeec0029174e93b479e5b071f2926a110
[INFO] checking realtyem/synapse-unraid against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealtyem%2Fsynapse-unraid" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/realtyem/synapse-unraid
[INFO] finished tweaking git repo https://github.com/realtyem/synapse-unraid
[INFO] tweaked toml for git repo https://github.com/realtyem/synapse-unraid written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/realtyem/synapse-unraid on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/realtyem/synapse-unraid 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros v0.17.3
[INFO] [stderr]   Downloaded pythonize v0.17.0
[INFO] [stderr]   Downloaded unindent v0.1.10
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.17.3
[INFO] [stderr]   Downloaded pyo3-log v0.8.1
[INFO] [stderr]   Downloaded indoc v1.0.7
[INFO] [stderr]   Downloaded digest v0.10.5
[INFO] [stderr]   Downloaded pyo3-build-config v0.17.3
[INFO] [stderr]   Downloaded pyo3-ffi v0.17.3
[INFO] [stderr]   Downloaded arc-swap v1.5.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded parking_lot_core v0.9.3
[INFO] [stderr]   Downloaded target-lexicon v0.12.4
[INFO] [stderr]   Downloaded syn v1.0.104
[INFO] [stderr]   Downloaded pyo3 v0.17.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 678b238863cde36581712ec4650fc69c35b697a48e39232af610ed11e176aacb
[INFO] running `Command { std: "docker" "start" "-a" "678b238863cde36581712ec4650fc69c35b697a48e39232af610ed11e176aacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "678b238863cde36581712ec4650fc69c35b697a48e39232af610ed11e176aacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "678b238863cde36581712ec4650fc69c35b697a48e39232af610ed11e176aacb", kill_on_drop: false }`
[INFO] [stdout] 678b238863cde36581712ec4650fc69c35b697a48e39232af610ed11e176aacb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2375df4a02b53ed075c0c6fe82fafe0697a819be9608506c2ef3bf3b274819c
[INFO] running `Command { std: "docker" "start" "-a" "c2375df4a02b53ed075c0c6fe82fafe0697a819be9608506c2ef3bf3b274819c", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling target-lexicon v0.12.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.104
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling indoc v1.0.7
[INFO] [stderr]     Checking unindent v0.1.10
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking arc-swap v1.5.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling memoffset v0.6.5
[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] [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" "c2375df4a02b53ed075c0c6fe82fafe0697a819be9608506c2ef3bf3b274819c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2375df4a02b53ed075c0c6fe82fafe0697a819be9608506c2ef3bf3b274819c", kill_on_drop: false }`
[INFO] [stdout] c2375df4a02b53ed075c0c6fe82fafe0697a819be9608506c2ef3bf3b274819c