[INFO] fetching crate codam-mdbook 0.4.25...
[INFO] checking codam-mdbook-0.4.25 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate codam-mdbook 0.4.25 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate codam-mdbook 0.4.25 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] started tweaking crates.io crate codam-mdbook 0.4.25
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate codam-mdbook 0.4.25
[INFO] tweaked toml for crates.io crate codam-mdbook 0.4.25 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate codam-mdbook 0.4.25 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 ...
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[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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b0c3c27806cb72d955ac02d6caf4964f581d08edc03b80c42c41767d46e66ce
[INFO] running `Command { std: "docker" "start" "-a" "8b0c3c27806cb72d955ac02d6caf4964f581d08edc03b80c42c41767d46e66ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b0c3c27806cb72d955ac02d6caf4964f581d08edc03b80c42c41767d46e66ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0c3c27806cb72d955ac02d6caf4964f581d08edc03b80c42c41767d46e66ce", kill_on_drop: false }`
[INFO] [stdout] 8b0c3c27806cb72d955ac02d6caf4964f581d08edc03b80c42c41767d46e66ce
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bda41fa583497b0779abaa462cc7a8bb5ca71f65b45a2e3110a3e5efb09e6e1
[INFO] running `Command { std: "docker" "start" "-a" "4bda41fa583497b0779abaa462cc7a8bb5ca71f65b45a2e3110a3e5efb09e6e1", kill_on_drop: false }`
[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 libc v0.2.138
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.150
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.150
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling typenum v1.16.0
[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 bytes v1.3.0
[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" "4bda41fa583497b0779abaa462cc7a8bb5ca71f65b45a2e3110a3e5efb09e6e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bda41fa583497b0779abaa462cc7a8bb5ca71f65b45a2e3110a3e5efb09e6e1", kill_on_drop: false }`
[INFO] [stdout] 4bda41fa583497b0779abaa462cc7a8bb5ca71f65b45a2e3110a3e5efb09e6e1
[INFO] checking codam-mdbook-0.4.25 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate codam-mdbook 0.4.25 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate codam-mdbook 0.4.25 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] started tweaking crates.io crate codam-mdbook 0.4.25
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate codam-mdbook 0.4.25
[INFO] tweaked toml for crates.io crate codam-mdbook 0.4.25 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate codam-mdbook 0.4.25 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 062208070eb5a3831315efce30df6b8a10c67cc01baaa928f6d3120f15ea4331
[INFO] running `Command { std: "docker" "start" "-a" "062208070eb5a3831315efce30df6b8a10c67cc01baaa928f6d3120f15ea4331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "062208070eb5a3831315efce30df6b8a10c67cc01baaa928f6d3120f15ea4331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "062208070eb5a3831315efce30df6b8a10c67cc01baaa928f6d3120f15ea4331", kill_on_drop: false }`
[INFO] [stdout] 062208070eb5a3831315efce30df6b8a10c67cc01baaa928f6d3120f15ea4331
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e3c325f0ba4017b23e92986f6cce84133bce758957a7cecca8b5f4d8d8d14544
[INFO] running `Command { std: "docker" "start" "-a" "e3c325f0ba4017b23e92986f6cce84133bce758957a7cecca8b5f4d8d8d14544", kill_on_drop: false }`
[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 libc v0.2.138
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.150
[INFO] [stderr]    Compiling serde v1.0.150
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling thiserror v1.0.37
[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 bitflags v1.3.2
[INFO] [stderr]    Compiling siphasher v0.3.10
[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" "e3c325f0ba4017b23e92986f6cce84133bce758957a7cecca8b5f4d8d8d14544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c325f0ba4017b23e92986f6cce84133bce758957a7cecca8b5f4d8d8d14544", kill_on_drop: false }`
[INFO] [stdout] e3c325f0ba4017b23e92986f6cce84133bce758957a7cecca8b5f4d8d8d14544
