[INFO] fetching crate csv_stacker 0.1.3...
[INFO] checking csv_stacker-0.1.3 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate csv_stacker 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate csv_stacker 0.1.3 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate csv_stacker 0.1.3
[INFO] finished tweaking crates.io crate csv_stacker 0.1.3
[INFO] tweaked toml for crates.io crate csv_stacker 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate csv_stacker 0.1.3 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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polars-arrow v0.25.1
[INFO] [stderr]   Downloaded polars-utils v0.25.1
[INFO] [stderr]   Downloaded strength_reduce v0.2.4
[INFO] [stderr]   Downloaded polars-time v0.25.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.81
[INFO] [stderr]   Downloaded link-cplusplus v1.0.7
[INFO] [stderr]   Downloaded foreign_vec v0.1.0
[INFO] [stderr]   Downloaded scratch v1.0.2
[INFO] [stderr]   Downloaded multiversion-macros v0.6.1
[INFO] [stderr]   Downloaded polars-ops v0.25.1
[INFO] [stderr]   Downloaded polars-pipe v0.25.1
[INFO] [stderr]   Downloaded memmap2 v0.5.8
[INFO] [stderr]   Downloaded polars-plan v0.25.1
[INFO] [stderr]   Downloaded polars-lazy v0.25.1
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.81
[INFO] [stderr]   Downloaded arrow2 v0.14.2
[INFO] [stderr]   Downloaded cxx v1.0.81
[INFO] [stderr]   Downloaded cxx-build v1.0.81
[INFO] [stderr]   Downloaded polars-core v0.25.1
[INFO] [stderr]   Downloaded polars-io v0.25.1
[INFO] [stderr]   Downloaded ahash v0.8.1
[INFO] [stderr]   Downloaded comfy-table v6.1.2
[INFO] [stderr]   Downloaded ethnum v1.3.0
[INFO] [stderr]   Downloaded libm v0.2.6
[INFO] [stderr]   Downloaded dyn-clone v1.0.9
[INFO] [stderr]   Downloaded hash_hasher v2.0.3
[INFO] [stderr]   Downloaded multiversion v0.6.1
[INFO] [stderr]   Downloaded polars v0.25.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2aaaf16fb6e0b94812e1af117a25ff1e0bb4c301a92affaceeb50e3760255278
[INFO] running `Command { std: "docker" "start" "-a" "2aaaf16fb6e0b94812e1af117a25ff1e0bb4c301a92affaceeb50e3760255278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aaaf16fb6e0b94812e1af117a25ff1e0bb4c301a92affaceeb50e3760255278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aaaf16fb6e0b94812e1af117a25ff1e0bb4c301a92affaceeb50e3760255278", kill_on_drop: false }`
[INFO] [stdout] 2aaaf16fb6e0b94812e1af117a25ff1e0bb4c301a92affaceeb50e3760255278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd5366589e684b43802121737e9cdbbc886b34078d8200f170b96b0904516b62
[INFO] running `Command { std: "docker" "start" "-a" "dd5366589e684b43802121737e9cdbbc886b34078d8200f170b96b0904516b62", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.9.3
[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]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[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" "dd5366589e684b43802121737e9cdbbc886b34078d8200f170b96b0904516b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5366589e684b43802121737e9cdbbc886b34078d8200f170b96b0904516b62", kill_on_drop: false }`
[INFO] [stdout] dd5366589e684b43802121737e9cdbbc886b34078d8200f170b96b0904516b62
[INFO] checking csv_stacker-0.1.3 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate csv_stacker 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate csv_stacker 0.1.3 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate csv_stacker 0.1.3
[INFO] finished tweaking crates.io crate csv_stacker 0.1.3
[INFO] tweaked toml for crates.io crate csv_stacker 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate csv_stacker 0.1.3 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 077faca0e45d8050a01b4c81b517f571b9c8dbdbeb3b68e64de3eb12f872e663
[INFO] running `Command { std: "docker" "start" "-a" "077faca0e45d8050a01b4c81b517f571b9c8dbdbeb3b68e64de3eb12f872e663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "077faca0e45d8050a01b4c81b517f571b9c8dbdbeb3b68e64de3eb12f872e663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "077faca0e45d8050a01b4c81b517f571b9c8dbdbeb3b68e64de3eb12f872e663", kill_on_drop: false }`
[INFO] [stdout] 077faca0e45d8050a01b4c81b517f571b9c8dbdbeb3b68e64de3eb12f872e663
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d46b70a0776bdba19c6c76909a84767595ba9315fb4839ef173c83c190cbe83
[INFO] running `Command { std: "docker" "start" "-a" "5d46b70a0776bdba19c6c76909a84767595ba9315fb4839ef173c83c190cbe83", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[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-macro2-1.0.47/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 lexical-util v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[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" "5d46b70a0776bdba19c6c76909a84767595ba9315fb4839ef173c83c190cbe83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d46b70a0776bdba19c6c76909a84767595ba9315fb4839ef173c83c190cbe83", kill_on_drop: false }`
[INFO] [stdout] 5d46b70a0776bdba19c6c76909a84767595ba9315fb4839ef173c83c190cbe83
