[INFO] fetching crate taffy 0.9.2...
[INFO] building taffy-0.9.2 against try#58b1b3c5342a414c161338871f8004258ccef2a7 for pr-149937
[INFO] extracting crate taffy 0.9.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate taffy 0.9.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate taffy 0.9.2
[INFO] tweaked toml for crates.io crate taffy 0.9.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate taffy 0.9.2 on toolchain 58b1b3c5342a414c161338871f8004258ccef2a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate taffy 0.9.2 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" "+58b1b3c5342a414c161338871f8004258ccef2a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5ef3c9eb5777a2b464b1a80d4ed13bcfd03cbb9b37b3d0a5db702526565bc22
[INFO] running `Command { std: "docker" "start" "-a" "a5ef3c9eb5777a2b464b1a80d4ed13bcfd03cbb9b37b3d0a5db702526565bc22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5ef3c9eb5777a2b464b1a80d4ed13bcfd03cbb9b37b3d0a5db702526565bc22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ef3c9eb5777a2b464b1a80d4ed13bcfd03cbb9b37b3d0a5db702526565bc22", kill_on_drop: false }`
[INFO] [stdout] a5ef3c9eb5777a2b464b1a80d4ed13bcfd03cbb9b37b3d0a5db702526565bc22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c96571ebb950463c9a6f50558c0d526adc4e7c325ee8c25f0da50498ff05b173
[INFO] running `Command { std: "docker" "start" "-a" "c96571ebb950463c9a6f50558c0d526adc4e7c325ee8c25f0da50498ff05b173", kill_on_drop: false }`
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling grid v1.0.0
[INFO] [stderr]    Compiling taffy v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "c96571ebb950463c9a6f50558c0d526adc4e7c325ee8c25f0da50498ff05b173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96571ebb950463c9a6f50558c0d526adc4e7c325ee8c25f0da50498ff05b173", kill_on_drop: false }`
[INFO] [stdout] c96571ebb950463c9a6f50558c0d526adc4e7c325ee8c25f0da50498ff05b173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 194246920c144de73cf77c53c77d3394bb1b3d5fe773a528dedebd87981e0ccc
[INFO] running `Command { std: "docker" "start" "-a" "194246920c144de73cf77c53c77d3394bb1b3d5fe773a528dedebd87981e0ccc", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling taffy v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 29.13s
[INFO] running `Command { std: "docker" "inspect" "194246920c144de73cf77c53c77d3394bb1b3d5fe773a528dedebd87981e0ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194246920c144de73cf77c53c77d3394bb1b3d5fe773a528dedebd87981e0ccc", kill_on_drop: false }`
[INFO] [stdout] 194246920c144de73cf77c53c77d3394bb1b3d5fe773a528dedebd87981e0ccc