[INFO] cloning repository https://github.com/ZoidbergHomeowner/map-reduce
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ZoidbergHomeowner/map-reduce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZoidbergHomeowner%2Fmap-reduce", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZoidbergHomeowner%2Fmap-reduce'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc23cbdca7a6fc78fc0dd74c2ab524a4270b65fb
[INFO] checking ZoidbergHomeowner/map-reduce/fc23cbdca7a6fc78fc0dd74c2ab524a4270b65fb against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZoidbergHomeowner%2Fmap-reduce" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/ZoidbergHomeowner/map-reduce on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ZoidbergHomeowner/map-reduce
[INFO] finished tweaking git repo https://github.com/ZoidbergHomeowner/map-reduce
[INFO] tweaked toml for git repo https://github.com/ZoidbergHomeowner/map-reduce written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ZoidbergHomeowner/map-reduce 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" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v2.3.1
[INFO] [stderr]   Downloaded once_cell v1.17.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c58e30d968c3bbe9e44f2d20f773612eb1cebd92b9ad40c23db94f57f920e973
[INFO] running `Command { std: "docker" "start" "-a" "c58e30d968c3bbe9e44f2d20f773612eb1cebd92b9ad40c23db94f57f920e973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c58e30d968c3bbe9e44f2d20f773612eb1cebd92b9ad40c23db94f57f920e973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c58e30d968c3bbe9e44f2d20f773612eb1cebd92b9ad40c23db94f57f920e973", kill_on_drop: false }`
[INFO] [stdout] c58e30d968c3bbe9e44f2d20f773612eb1cebd92b9ad40c23db94f57f920e973
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b53310c754a250c78034e3b8b0ad95f6d929caba8870d438c40d3c341fe9fe86
[INFO] running `Command { std: "docker" "start" "-a" "b53310c754a250c78034e3b8b0ad95f6d929caba8870d438c40d3c341fe9fe86", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking once_cell v1.17.2
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 tokio v1.28.2
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling heck v0.3.3
[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" "b53310c754a250c78034e3b8b0ad95f6d929caba8870d438c40d3c341fe9fe86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53310c754a250c78034e3b8b0ad95f6d929caba8870d438c40d3c341fe9fe86", kill_on_drop: false }`
[INFO] [stdout] b53310c754a250c78034e3b8b0ad95f6d929caba8870d438c40d3c341fe9fe86