[INFO] fetching crate differential-growth 0.3.1...
[INFO] checking differential-growth-0.3.1 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate differential-growth 0.3.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate differential-growth 0.3.1
[INFO] finished tweaking crates.io crate differential-growth 0.3.1
[INFO] tweaked toml for crates.io crate differential-growth 0.3.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate differential-growth 0.3.1 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate differential-growth 0.3.1 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81fd9414ded704a9322723e2d809fcb3f937029d397239fefa2891b3d16b292a
[INFO] running `Command { std: "docker" "start" "-a" "81fd9414ded704a9322723e2d809fcb3f937029d397239fefa2891b3d16b292a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81fd9414ded704a9322723e2d809fcb3f937029d397239fefa2891b3d16b292a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fd9414ded704a9322723e2d809fcb3f937029d397239fefa2891b3d16b292a", kill_on_drop: false }`
[INFO] [stdout] 81fd9414ded704a9322723e2d809fcb3f937029d397239fefa2891b3d16b292a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74f44457c39e782001b5d142e4177a71bc8db2d145f822b5584dd92642feec2f
[INFO] running `Command { std: "docker" "start" "-a" "74f44457c39e782001b5d142e4177a71bc8db2d145f822b5584dd92642feec2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking bytemuck v1.11.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stdout] error[E0635]: unknown feature `stdsimd`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ahash-0.7.6/src/lib.rs:33:42
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![cfg_attr(feature = "stdsimd", feature(stdsimd))]
[INFO] [stdout]    |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ahash` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "74f44457c39e782001b5d142e4177a71bc8db2d145f822b5584dd92642feec2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74f44457c39e782001b5d142e4177a71bc8db2d145f822b5584dd92642feec2f", kill_on_drop: false }`
[INFO] [stdout] 74f44457c39e782001b5d142e4177a71bc8db2d145f822b5584dd92642feec2f
