[INFO] fetching crate trace-tools 0.3.0...
[INFO] testing trace-tools-0.3.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate trace-tools 0.3.0 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate trace-tools 0.3.0
[INFO] finished tweaking crates.io crate trace-tools 0.3.0
[INFO] tweaked toml for crates.io crate trace-tools 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trace-tools 0.3.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trace-tools 0.3.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eff6ecf4101da6393e4e6e350b629ad43ff4f8b7e6f149e9cd0fb074d5b9fda9
[INFO] running `Command { std: "docker" "start" "-a" "eff6ecf4101da6393e4e6e350b629ad43ff4f8b7e6f149e9cd0fb074d5b9fda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eff6ecf4101da6393e4e6e350b629ad43ff4f8b7e6f149e9cd0fb074d5b9fda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff6ecf4101da6393e4e6e350b629ad43ff4f8b7e6f149e9cd0fb074d5b9fda9", kill_on_drop: false }`
[INFO] [stdout] eff6ecf4101da6393e4e6e350b629ad43ff4f8b7e6f149e9cd0fb074d5b9fda9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad7d8f3c23e84066d0dac3617d1e230ad8958041b17fe358b9dbfb7829f0c7e1
[INFO] running `Command { std: "docker" "start" "-a" "ad7d8f3c23e84066d0dac3617d1e230ad8958041b17fe358b9dbfb7829f0c7e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num_threads v0.1.3
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling str_stack v0.1.0
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling rgb v0.8.31
[INFO] [stderr]    Compiling num-format v0.4.0
[INFO] [stderr]    Compiling tracing v0.1.31
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling quick-xml v0.22.0
[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 quote v1.0.15
[INFO] [stderr]    Compiling tracing-subscriber v0.3.9
[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" "ad7d8f3c23e84066d0dac3617d1e230ad8958041b17fe358b9dbfb7829f0c7e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad7d8f3c23e84066d0dac3617d1e230ad8958041b17fe358b9dbfb7829f0c7e1", kill_on_drop: false }`
[INFO] [stdout] ad7d8f3c23e84066d0dac3617d1e230ad8958041b17fe358b9dbfb7829f0c7e1