[INFO] cloning repository https://github.com/Ryiski/rfm-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryiski/rfm-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyiski%2Frfm-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyiski%2Frfm-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4dd572bc581b4e00cffe6194f43464c5b68d93d
[INFO] testing Ryiski/rfm-rs/c4dd572bc581b4e00cffe6194f43464c5b68d93d against master#9e297bf54d31eb3b30067208ff9af4416945a2ed for pr-125507
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyiski%2Frfm-rs" "/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/Ryiski/rfm-rs on toolchain 9e297bf54d31eb3b30067208ff9af4416945a2ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ryiski/rfm-rs
[INFO] finished tweaking git repo https://github.com/Ryiski/rfm-rs
[INFO] tweaked toml for git repo https://github.com/Ryiski/rfm-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ryiski/rfm-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" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polars-row v0.28.0
[INFO] [stderr]   Downloaded polars v0.28.0
[INFO] [stderr]   Downloaded polars-error v0.28.0
[INFO] [stderr]   Downloaded polars-utils v0.28.0
[INFO] [stderr]   Downloaded json-deserializer v0.4.4
[INFO] [stderr]   Downloaded polars-ops v0.28.0
[INFO] [stderr]   Downloaded polars-pipe v0.28.0
[INFO] [stderr]   Downloaded simd-json v0.7.0
[INFO] [stderr]   Downloaded polars-plan v0.28.0
[INFO] [stderr]   Downloaded polars-core v0.28.0
[INFO] [stderr]   Downloaded arrow2 v0.17.0
[INFO] [stderr]   Downloaded halfbrown v0.1.18
[INFO] [stderr]   Downloaded polars-lazy v0.28.0
[INFO] [stderr]   Downloaded value-trait v0.5.1
[INFO] [stderr]   Downloaded polars-io v0.28.0
[INFO] [stderr]   Downloaded polars-arrow v0.28.0
[INFO] [stderr]   Downloaded ethnum v1.3.2
[INFO] [stderr]   Downloaded polars-time v0.28.0
[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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ef04de95431acb4cf5650a026263557c549c5e4d6467f3611a1c4b34281d27a
[INFO] running `Command { std: "docker" "start" "-a" "7ef04de95431acb4cf5650a026263557c549c5e4d6467f3611a1c4b34281d27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef04de95431acb4cf5650a026263557c549c5e4d6467f3611a1c4b34281d27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef04de95431acb4cf5650a026263557c549c5e4d6467f3611a1c4b34281d27a", kill_on_drop: false }`
[INFO] [stdout] 7ef04de95431acb4cf5650a026263557c549c5e4d6467f3611a1c4b34281d27a
[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=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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69f8455b2bc8fdaff2daa187172c0f90250d466b5a41ded58ee76558f1b1011c
[INFO] running `Command { std: "docker" "start" "-a" "69f8455b2bc8fdaff2daa187172c0f90250d466b5a41ded58ee76558f1b1011c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]    Compiling lexical-util v0.8.5
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling memchr v2.5.0
[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] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "69f8455b2bc8fdaff2daa187172c0f90250d466b5a41ded58ee76558f1b1011c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69f8455b2bc8fdaff2daa187172c0f90250d466b5a41ded58ee76558f1b1011c", kill_on_drop: false }`
[INFO] [stdout] 69f8455b2bc8fdaff2daa187172c0f90250d466b5a41ded58ee76558f1b1011c