[INFO] cloning repository https://github.com/slaveofcode/fastexcel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slaveofcode/fastexcel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslaveofcode%2Ffastexcel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslaveofcode%2Ffastexcel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86777a4e08cf42a7e52536e4c994481f352bac59
[INFO] checking slaveofcode/fastexcel against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslaveofcode%2Ffastexcel" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/slaveofcode/fastexcel on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/slaveofcode/fastexcel
[INFO] finished tweaking git repo https://github.com/slaveofcode/fastexcel
[INFO] tweaked toml for git repo https://github.com/slaveofcode/fastexcel written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/slaveofcode/fastexcel 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64ct v1.5.3
[INFO] [stderr]   Downloaded neon-build v0.10.1
[INFO] [stderr]   Downloaded neon-macros v0.10.1
[INFO] [stderr]   Downloaded serde v1.0.150
[INFO] [stderr]   Downloaded calamine v0.19.1
[INFO] [stderr]   Downloaded neon-runtime v0.10.1
[INFO] [stderr]   Downloaded zip v0.6.3
[INFO] [stderr]   Downloaded neon v0.10.1
[INFO] [stderr]   Downloaded quick-xml v0.25.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc2bd972da9ecfa584474e0af21eccf78f8d731be7ecd9ca8f89a6707787b777
[INFO] running `Command { std: "docker" "start" "-a" "dc2bd972da9ecfa584474e0af21eccf78f8d731be7ecd9ca8f89a6707787b777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc2bd972da9ecfa584474e0af21eccf78f8d731be7ecd9ca8f89a6707787b777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc2bd972da9ecfa584474e0af21eccf78f8d731be7ecd9ca8f89a6707787b777", kill_on_drop: false }`
[INFO] [stdout] dc2bd972da9ecfa584474e0af21eccf78f8d731be7ecd9ca8f89a6707787b777
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 073e45e05cab5d27c7de69a32e4d5aee02f07c2c678d60ae6da1f65457235831
[INFO] running `Command { std: "docker" "start" "-a" "073e45e05cab5d27c7de69a32e4d5aee02f07c2c678d60ae6da1f65457235831", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling neon-build v0.10.1
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking base64ct v1.5.3
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling serde v1.0.150
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking neon-runtime v0.10.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking password-hash v0.4.2
[INFO] [stderr]    Compiling neon v0.10.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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]     Checking flate2 v1.0.25
[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" "073e45e05cab5d27c7de69a32e4d5aee02f07c2c678d60ae6da1f65457235831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073e45e05cab5d27c7de69a32e4d5aee02f07c2c678d60ae6da1f65457235831", kill_on_drop: false }`
[INFO] [stdout] 073e45e05cab5d27c7de69a32e4d5aee02f07c2c678d60ae6da1f65457235831