[INFO] cloning repository https://github.com/cdobrescu/AdventOfCode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cdobrescu/AdventOfCode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdobrescu%2FAdventOfCode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdobrescu%2FAdventOfCode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 312506ca44fbcb3ba0ee69a73113dbfdba8a55b8
[INFO] building cdobrescu/AdventOfCode against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdobrescu%2FAdventOfCode" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cdobrescu/AdventOfCode on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cdobrescu/AdventOfCode
[INFO] finished tweaking git repo https://github.com/cdobrescu/AdventOfCode
[INFO] tweaked toml for git repo https://github.com/cdobrescu/AdventOfCode written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cdobrescu/AdventOfCode 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] building cdobrescu/AdventOfCode against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdobrescu%2FAdventOfCode" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cdobrescu/AdventOfCode on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cdobrescu/AdventOfCode
[INFO] finished tweaking git repo https://github.com/cdobrescu/AdventOfCode
[INFO] tweaked toml for git repo https://github.com/cdobrescu/AdventOfCode written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cdobrescu/AdventOfCode 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.47
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.19
[INFO] [stderr]   Downloaded matches v0.1.9
[INFO] [stderr]   Downloaded reqwest_cookie_store v0.4.0
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[INFO] [stderr]   Downloaded semver v1.0.14
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[INFO] [stderr]   Downloaded tokio-native-tls v0.3.0
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[INFO] [stderr]   Downloaded socket2 v0.4.7
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[INFO] [stderr]   Downloaded security-framework-sys v2.6.1
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[INFO] [stderr]   Downloaded futures-io v0.3.25
[INFO] [stderr]   Downloaded psl-types v2.0.11
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[INFO] [stderr]   Downloaded ryu v1.0.11
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[INFO] [stderr]   Downloaded tokio-util v0.7.4
[INFO] [stderr]   Downloaded http v0.2.8
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[INFO] [stderr]   Downloaded idna v0.2.3
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[INFO] [stderr]   Downloaded futures-util v0.3.25
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[INFO] [stderr]   Downloaded try-lock v0.2.3
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[INFO] [stderr]   Downloaded wasm-bindgen v0.2.83
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[INFO] [stderr]   Downloaded publicsuffix v2.2.3
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[INFO] [stderr]   Downloaded cc v1.0.74
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[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded time-macros v0.2.5
[INFO] [stderr]   Downloaded indexmap v1.9.1
[INFO] [stderr]   Downloaded slab v0.4.7
[INFO] [stderr]   Downloaded hyper-tls v0.5.0
[INFO] [stderr]   Downloaded ipnet v2.5.0
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.42.0
[INFO] [stderr]   Downloaded futures-channel v0.3.25
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.36.1
[INFO] [stderr]   Downloaded httparse v1.8.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.36.1
[INFO] [stderr]   Downloaded want v0.3.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.36.1
[INFO] [stderr]   Downloaded bytes v1.2.1
[INFO] [stderr]   Downloaded encoding_rs v0.8.31
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded bumpalo v3.11.1
[INFO] [stderr]   Downloaded web-sys v0.3.60
[INFO] [stderr]   Downloaded windows_i686_gnu v0.42.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.42.0
[INFO] [stderr]   Downloaded tempfile v3.3.0
[INFO] [stderr]   Downloaded mio v0.8.5
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.33
[INFO] [stderr]   Downloaded js-sys v0.3.60
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.83
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.83
[INFO] [stderr]   Downloaded tinyvec_macros v0.1.0
[INFO] [stderr]   Downloaded rpassword v7.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.83
[INFO] [stderr]   Downloaded once_cell v1.16.0
[INFO] [stderr]   Downloaded serde v1.0.147
[INFO] [stderr]   Downloaded markup5ever v0.11.0
[INFO] [stderr]   Downloaded html5ever v0.26.0
[INFO] [stderr]   Downloaded winreg v0.10.1
[INFO] [stderr]   Downloaded unicode-bidi v0.3.8
[INFO] [stderr]   Downloaded ego-tree v0.6.2
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded serde_derive v1.0.147
[INFO] [stderr]   Downloaded string_cache v0.8.4
[INFO] [stderr]   Downloaded phf_codegen v0.10.0
[INFO] [stderr]   Downloaded parking_lot_core v0.9.4
[INFO] [stderr]   Downloaded syn v1.0.103
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded scraper v0.13.0
[INFO] [stderr]   Downloaded windows-sys v0.36.1
[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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94e1515d2dfd4b7c120823effe5970fe54a07fd4aa20bd6de0108c7d6016c262
[INFO] running `Command { std: "docker" "start" "-a" "94e1515d2dfd4b7c120823effe5970fe54a07fd4aa20bd6de0108c7d6016c262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94e1515d2dfd4b7c120823effe5970fe54a07fd4aa20bd6de0108c7d6016c262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e1515d2dfd4b7c120823effe5970fe54a07fd4aa20bd6de0108c7d6016c262", kill_on_drop: false }`
[INFO] [stdout] 94e1515d2dfd4b7c120823effe5970fe54a07fd4aa20bd6de0108c7d6016c262
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc14ecf9f2ef0557e8fa31e79eeafaf8d971300913c71330a1f84f5eb4fb44c2
[INFO] running `Command { std: "docker" "start" "-a" "cc14ecf9f2ef0557e8fa31e79eeafaf8d971300913c71330a1f84f5eb4fb44c2", 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 syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 smallvec v1.10.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling indexmap v1.9.1
[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" "cc14ecf9f2ef0557e8fa31e79eeafaf8d971300913c71330a1f84f5eb4fb44c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc14ecf9f2ef0557e8fa31e79eeafaf8d971300913c71330a1f84f5eb4fb44c2", kill_on_drop: false }`
[INFO] [stdout] cc14ecf9f2ef0557e8fa31e79eeafaf8d971300913c71330a1f84f5eb4fb44c2