[INFO] fetching crate randselect 0.3.1...
[INFO] testing randselect-0.3.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate randselect 0.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate randselect 0.3.1
[INFO] finished tweaking crates.io crate randselect 0.3.1
[INFO] tweaked toml for crates.io crate randselect 0.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate randselect 0.3.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate randselect 0.3.1 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded human-panic v1.1.5
[INFO] [stderr]   Downloaded toml_edit v0.19.6
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.92
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.92
[INFO] [stderr]   Downloaded anyhow v1.0.71
[INFO] [stderr]   Downloaded uuid v1.3.0
[INFO] [stderr]   Downloaded anstream v0.3.0
[INFO] [stderr]   Downloaded toml v0.7.3
[INFO] [stderr]   Downloaded rustix v0.36.4
[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded miniz_oxide v0.6.2
[INFO] [stderr]   Downloaded cxx v1.0.92
[INFO] [stderr]   Downloaded clap v4.1.11
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded serde_spanned v0.6.1
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded cxx-build v1.0.92
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded winnow v0.3.5
[INFO] [stderr]   Downloaded iana-time-zone-haiku v0.1.1
[INFO] [stderr]   Downloaded bitflags v2.0.2
[INFO] [stderr]   Downloaded colored v2.0.1
[INFO] [stderr]   Downloaded os_info v3.6.0
[INFO] [stderr]   Downloaded serde_derive v1.0.155
[INFO] [stderr]   Downloaded syn v2.0.3
[INFO] [stderr]   Downloaded log v0.4.19
[INFO] [stderr]   Downloaded link-cplusplus v1.0.8
[INFO] [stderr]   Downloaded scratch v1.0.5
[INFO] [stderr]   Downloaded iana-time-zone v0.1.53
[INFO] [stderr]   Downloaded clap_derive v4.1.9
[INFO] [stderr]   Downloaded anstyle-wincon v1.0.0
[INFO] [stderr]   Downloaded toml_datetime v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9f6f96ce5845970b8fdf77a504050cb15c194ce306c68cb527fb8e98c6cd6d9
[INFO] running `Command { std: "docker" "start" "-a" "e9f6f96ce5845970b8fdf77a504050cb15c194ce306c68cb527fb8e98c6cd6d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9f6f96ce5845970b8fdf77a504050cb15c194ce306c68cb527fb8e98c6cd6d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f6f96ce5845970b8fdf77a504050cb15c194ce306c68cb527fb8e98c6cd6d9", kill_on_drop: false }`
[INFO] [stdout] e9f6f96ce5845970b8fdf77a504050cb15c194ce306c68cb527fb8e98c6cd6d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d117c2582f339f216f57f3c8e84c2793ed03177e09d1f1d9edad0cce88f9861e
[INFO] running `Command { std: "docker" "start" "-a" "d117c2582f339f216f57f3c8e84c2793ed03177e09d1f1d9edad0cce88f9861e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.155
[INFO] [stderr]    Compiling rustix v0.36.4
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling io-lifetimes v1.0.2
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling winnow v0.3.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling os_str_bytes v6.2.0
[INFO] [stderr]    Compiling uuid v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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 bitflags v2.0.2
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling clap_lex v0.3.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.53
[INFO] [stderr]    Compiling colored v2.0.1
[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" "d117c2582f339f216f57f3c8e84c2793ed03177e09d1f1d9edad0cce88f9861e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d117c2582f339f216f57f3c8e84c2793ed03177e09d1f1d9edad0cce88f9861e", kill_on_drop: false }`
[INFO] [stdout] d117c2582f339f216f57f3c8e84c2793ed03177e09d1f1d9edad0cce88f9861e