[INFO] fetching crate fnntw 0.4.1...
[INFO] checking fnntw-0.4.1 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate fnntw 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate fnntw 0.4.1 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate fnntw 0.4.1
[INFO] finished tweaking crates.io crate fnntw 0.4.1
[INFO] tweaked toml for crates.io crate fnntw 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate fnntw 0.4.1 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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded py_literal v0.4.0
[INFO] [stderr]   Downloaded ouroboros_macro v0.15.6
[INFO] [stderr]   Downloaded tcmalloc-sys v0.3.0
[INFO] [stderr]   Downloaded pest v2.5.6
[INFO] [stderr]   Downloaded mimalloc v0.1.34
[INFO] [stderr]   Downloaded rpmalloc-sys v0.2.3+b097fd0
[INFO] [stderr]   Downloaded kth v0.1.0
[INFO] [stderr]   Downloaded order-stat v0.1.3
[INFO] [stderr]   Downloaded approx_eq v0.1.8
[INFO] [stderr]   Downloaded concat-idents v1.1.4
[INFO] [stderr]   Downloaded ndarray-npy v0.8.1
[INFO] [stderr]   Downloaded pest_meta v2.5.6
[INFO] [stderr]   Downloaded serde_derive v1.0.156
[INFO] [stderr]   Downloaded floydrivest v0.2.4
[INFO] [stderr]   Downloaded pest_derive v2.5.6
[INFO] [stderr]   Downloaded sync-unsafe-cell v0.1.0
[INFO] [stderr]   Downloaded snmalloc-rs v0.3.3
[INFO] [stderr]   Downloaded rpmalloc v0.2.2
[INFO] [stderr]   Downloaded pdqselect v0.1.1
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] [stderr]   Downloaded pest_generator v2.5.6
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.30
[INFO] [stderr]   Downloaded adqselect v0.1.3
[INFO] [stderr]   Downloaded snmalloc-sys v0.3.3
[INFO] [stderr]   Downloaded permutation v0.4.1
[INFO] [stderr]   Downloaded aliasable v0.1.3
[INFO] [stderr]   Downloaded ouroboros v0.15.6
[INFO] [stderr]   Downloaded dry v0.1.1
[INFO] [stderr]   Downloaded index-fixed v0.0.2
[INFO] [stderr]   Downloaded zip v0.5.13
[INFO] [stderr]   Downloaded seq-macro v0.3.3
[INFO] [stderr]   Downloaded likely_stable v0.1.2
[INFO] [stderr]   Downloaded tcmalloc v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa65dbf8e63c0805ba5b681e9410b77c46754a3669af3a614bb9537894e2b71d
[INFO] running `Command { std: "docker" "start" "-a" "fa65dbf8e63c0805ba5b681e9410b77c46754a3669af3a614bb9537894e2b71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa65dbf8e63c0805ba5b681e9410b77c46754a3669af3a614bb9537894e2b71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa65dbf8e63c0805ba5b681e9410b77c46754a3669af3a614bb9537894e2b71d", kill_on_drop: false }`
[INFO] [stdout] fa65dbf8e63c0805ba5b681e9410b77c46754a3669af3a614bb9537894e2b71d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1c00e41e461d80c1803cc42da4937b04b6a727983cd13e54e7b1e8c6c4d25f1
[INFO] running `Command { std: "docker" "start" "-a" "b1c00e41e461d80c1803cc42da4937b04b6a727983cd13e54e7b1e8c6c4d25f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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] [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" "b1c00e41e461d80c1803cc42da4937b04b6a727983cd13e54e7b1e8c6c4d25f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c00e41e461d80c1803cc42da4937b04b6a727983cd13e54e7b1e8c6c4d25f1", kill_on_drop: false }`
[INFO] [stdout] b1c00e41e461d80c1803cc42da4937b04b6a727983cd13e54e7b1e8c6c4d25f1
[INFO] checking fnntw-0.4.1 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate fnntw 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate fnntw 0.4.1 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate fnntw 0.4.1
[INFO] finished tweaking crates.io crate fnntw 0.4.1
[INFO] tweaked toml for crates.io crate fnntw 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate fnntw 0.4.1 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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7ea8c14f5e0c18089a405a7a5151d80bfd7f92ea5c50c6a4c6b21f7d80dfb0d
[INFO] running `Command { std: "docker" "start" "-a" "d7ea8c14f5e0c18089a405a7a5151d80bfd7f92ea5c50c6a4c6b21f7d80dfb0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7ea8c14f5e0c18089a405a7a5151d80bfd7f92ea5c50c6a4c6b21f7d80dfb0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ea8c14f5e0c18089a405a7a5151d80bfd7f92ea5c50c6a4c6b21f7d80dfb0d", kill_on_drop: false }`
[INFO] [stdout] d7ea8c14f5e0c18089a405a7a5151d80bfd7f92ea5c50c6a4c6b21f7d80dfb0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be2adb0394991d0f87f2ed75f6c28f5ae94b74d43dc9568814538cdebe417d6e
[INFO] running `Command { std: "docker" "start" "-a" "be2adb0394991d0f87f2ed75f6c28f5ae94b74d43dc9568814538cdebe417d6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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] [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" "be2adb0394991d0f87f2ed75f6c28f5ae94b74d43dc9568814538cdebe417d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be2adb0394991d0f87f2ed75f6c28f5ae94b74d43dc9568814538cdebe417d6e", kill_on_drop: false }`
[INFO] [stdout] be2adb0394991d0f87f2ed75f6c28f5ae94b74d43dc9568814538cdebe417d6e
