[INFO] fetching crate rustpython-ast 0.4.0...
[INFO] building rustpython-ast-0.4.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rustpython-ast 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rustpython-ast 0.4.0
[INFO] finished tweaking crates.io crate rustpython-ast 0.4.0
[INFO] tweaked toml for crates.io crate rustpython-ast 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustpython-ast 0.4.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages to latest compatible versions
[INFO] [stderr]       Adding malachite-bigint v0.2.3 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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 rustpython-literal v0.4.0
[INFO] [stderr]   Downloaded rustpython-parser-core v0.4.0
[INFO] [stderr]   Downloaded is-macro v0.3.7
[INFO] [stderr]   Downloaded lexical-parse-integer v0.8.6
[INFO] [stderr]   Downloaded rustpython-parser-vendored v0.4.0
[INFO] [stderr]   Downloaded matches v0.1.10
[INFO] [stderr]   Downloaded unic-ucd-category v0.9.0
[INFO] [stderr]   Downloaded hexf-parse v0.2.1
[INFO] [stderr]   Downloaded malachite-bigint v0.2.3
[INFO] [stderr]   Downloaded lexical-parse-float v0.8.5
[INFO] [stderr]   Downloaded lexical-util v0.8.5
[INFO] [stderr]   Downloaded malachite-q v0.4.22
[INFO] [stderr]   Downloaded malachite v0.4.22
[INFO] [stderr]   Downloaded malachite-base v0.4.22
[INFO] [stderr]   Downloaded malachite-nz v0.4.22
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1112f4c4fa5667fa2f0580d933e54d9a03f97fa86d2c5ca9604e1b27672dc9b2
[INFO] running `Command { std: "docker" "start" "-a" "1112f4c4fa5667fa2f0580d933e54d9a03f97fa86d2c5ca9604e1b27672dc9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1112f4c4fa5667fa2f0580d933e54d9a03f97fa86d2c5ca9604e1b27672dc9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1112f4c4fa5667fa2f0580d933e54d9a03f97fa86d2c5ca9604e1b27672dc9b2", kill_on_drop: false }`
[INFO] [stdout] 1112f4c4fa5667fa2f0580d933e54d9a03f97fa86d2c5ca9604e1b27672dc9b2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ffd7343a574363d2a3bb50d28f4271fbb8cd677b30615f6fd3a94777ba4a28e
[INFO] running `Command { std: "docker" "start" "-a" "2ffd7343a574363d2a3bb50d28f4271fbb8cd677b30615f6fd3a94777ba4a28e", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling malachite-nz v0.4.22
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustpython-parser-vendored v0.4.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling malachite-base v0.4.22
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling is-macro v0.3.7
[INFO] [stderr]    Compiling rustpython-parser-core v0.4.0
[INFO] [stderr]    Compiling derive_more v1.0.0
[INFO] [stderr]    Compiling malachite-q v0.4.22
[INFO] [stderr]    Compiling malachite v0.4.22
[INFO] [stderr]    Compiling malachite-bigint v0.2.3
[INFO] [stderr]    Compiling rustpython-ast v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.06s
[INFO] running `Command { std: "docker" "inspect" "2ffd7343a574363d2a3bb50d28f4271fbb8cd677b30615f6fd3a94777ba4a28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ffd7343a574363d2a3bb50d28f4271fbb8cd677b30615f6fd3a94777ba4a28e", kill_on_drop: false }`
[INFO] [stdout] 2ffd7343a574363d2a3bb50d28f4271fbb8cd677b30615f6fd3a94777ba4a28e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 566b6128238cae6ae8f08fd642e094aadcb0f1f3031eefa877f3f25e43effe90
[INFO] running `Command { std: "docker" "start" "-a" "566b6128238cae6ae8f08fd642e094aadcb0f1f3031eefa877f3f25e43effe90", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustpython-ast v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "566b6128238cae6ae8f08fd642e094aadcb0f1f3031eefa877f3f25e43effe90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "566b6128238cae6ae8f08fd642e094aadcb0f1f3031eefa877f3f25e43effe90", kill_on_drop: false }`
[INFO] [stdout] 566b6128238cae6ae8f08fd642e094aadcb0f1f3031eefa877f3f25e43effe90