[INFO] fetching crate rna-algos 0.1.37...
[INFO] checking rna-algos-0.1.37 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate rna-algos 0.1.37 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rna-algos 0.1.37 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rna-algos 0.1.37
[INFO] finished tweaking crates.io crate rna-algos 0.1.37
[INFO] tweaked toml for crates.io crate rna-algos 0.1.37 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate rna-algos 0.1.37 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15ee0a589493f0721373e9baa17a9fcfb1717aa74155db38ebe3600969e2925d
[INFO] running `Command { std: "docker" "start" "-a" "15ee0a589493f0721373e9baa17a9fcfb1717aa74155db38ebe3600969e2925d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15ee0a589493f0721373e9baa17a9fcfb1717aa74155db38ebe3600969e2925d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15ee0a589493f0721373e9baa17a9fcfb1717aa74155db38ebe3600969e2925d", kill_on_drop: false }`
[INFO] [stdout] 15ee0a589493f0721373e9baa17a9fcfb1717aa74155db38ebe3600969e2925d
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ed021a5aaae3812545cbe0cb728c704fb7e82b6028ef372a0e968c709e9cc6e
[INFO] running `Command { std: "docker" "start" "-a" "1ed021a5aaae3812545cbe0cb728c704fb7e82b6028ef372a0e968c709e9cc6e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling paste v1.0.11
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling feature-probe v0.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/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 num-rational v0.4.1
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking wide v0.7.5
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling bv v0.11.1
[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" "1ed021a5aaae3812545cbe0cb728c704fb7e82b6028ef372a0e968c709e9cc6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ed021a5aaae3812545cbe0cb728c704fb7e82b6028ef372a0e968c709e9cc6e", kill_on_drop: false }`
[INFO] [stdout] 1ed021a5aaae3812545cbe0cb728c704fb7e82b6028ef372a0e968c709e9cc6e