[INFO] fetching crate postcss 0.0.2...
[INFO] testing postcss-0.0.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate postcss 0.0.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate postcss 0.0.2
[INFO] finished tweaking crates.io crate postcss 0.0.2
[INFO] tweaked toml for crates.io crate postcss 0.0.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate postcss 0.0.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate postcss 0.0.2 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded output_vt100 v0.1.2
[INFO] [stderr]   Downloaded cast v0.2.7
[INFO] [stderr]   Downloaded smallvec v1.7.0
[INFO] [stderr]   Downloaded semver v1.0.4
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.78
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]   Downloaded serde_derive v1.0.130
[INFO] [stderr]   Downloaded pretty_assertions v0.7.2
[INFO] [stderr]   Downloaded bumpalo v3.8.0
[INFO] [stderr]   Downloaded js-sys v0.3.55
[INFO] [stderr]   Downloaded serde_json v1.0.68
[INFO] [stderr]   Downloaded criterion v0.3.5
[INFO] [stderr]   Downloaded ropey v1.3.1
[INFO] [stderr]   Downloaded serde v1.0.130
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.78
[INFO] [stderr]   Downloaded syn v1.0.81
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.32
[INFO] [stderr]   Downloaded criterion-plot v0.4.4
[INFO] [stderr]   Downloaded walkdir v2.3.2
[INFO] [stderr]   Downloaded diff v0.1.12
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded plotters-backend v0.3.2
[INFO] [stderr]   Downloaded plotters-svg v0.3.1
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.78
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.78
[INFO] [stderr]   Downloaded ctor v0.1.21
[INFO] [stderr]   Downloaded libc v0.2.106
[INFO] [stderr]   Downloaded web-sys v0.3.55
[INFO] [stderr]   Downloaded plotters v0.3.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1011d95dc7d2f8d5cc4091afd59832fc8faf6c6710bf02fd26d1ee1d134a3424
[INFO] running `Command { std: "docker" "start" "-a" "1011d95dc7d2f8d5cc4091afd59832fc8faf6c6710bf02fd26d1ee1d134a3424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1011d95dc7d2f8d5cc4091afd59832fc8faf6c6710bf02fd26d1ee1d134a3424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1011d95dc7d2f8d5cc4091afd59832fc8faf6c6710bf02fd26d1ee1d134a3424", kill_on_drop: false }`
[INFO] [stdout] 1011d95dc7d2f8d5cc4091afd59832fc8faf6c6710bf02fd26d1ee1d134a3424
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8fb115ea1726f215378d6cd5fdd90d5466265d1f33d832e47f165a9ca119c35
[INFO] running `Command { std: "docker" "start" "-a" "c8fb115ea1726f215378d6cd5fdd90d5466265d1f33d832e47f165a9ca119c35", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling ropey v1.3.1
[INFO] [stdout] error[E0080]: attempt to compute `0_usize - 1_usize`, which would overflow
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ropey-1.3.1/src/tree/mod.rs:74:19
[INFO] [stdout]    |
[INFO] [stdout] 74 |       const _: [(); 0 - !{
[INFO] [stdout]    |  ___________________^
[INFO] [stdout] 75 | |         // Assert alignment.
[INFO] [stdout] 76 | |         const ASSERT: bool = if align_of::<Node>() > ARC_COUNTERS_SIZE {
[INFO] [stdout] 77 | |             align_of::<Node>() + size_of::<Node>()
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         ASSERT
[INFO] [stdout] 82 | |     } as usize] = [];
[INFO] [stdout]    | |______________^ evaluation of `tree::constants::_::{constant#0}` failed here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stdout] For more information about this error, try `rustc --explain E0080`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ropey` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c8fb115ea1726f215378d6cd5fdd90d5466265d1f33d832e47f165a9ca119c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8fb115ea1726f215378d6cd5fdd90d5466265d1f33d832e47f165a9ca119c35", kill_on_drop: false }`
[INFO] [stdout] c8fb115ea1726f215378d6cd5fdd90d5466265d1f33d832e47f165a9ca119c35