[INFO] fetching crate t-srv 0.0.1...
[INFO] testing t-srv-0.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate t-srv 0.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate t-srv 0.0.1
[INFO] finished tweaking crates.io crate t-srv 0.0.1
[INFO] tweaked toml for crates.io crate t-srv 0.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate t-srv 0.0.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate t-srv 0.0.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1071db41d1c4582f7193bd26c6f07e315d0a9a42c7993bd006bcfc6458281ee3
[INFO] running `Command { std: "docker" "start" "-a" "1071db41d1c4582f7193bd26c6f07e315d0a9a42c7993bd006bcfc6458281ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1071db41d1c4582f7193bd26c6f07e315d0a9a42c7993bd006bcfc6458281ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1071db41d1c4582f7193bd26c6f07e315d0a9a42c7993bd006bcfc6458281ee3", kill_on_drop: false }`
[INFO] [stdout] 1071db41d1c4582f7193bd26c6f07e315d0a9a42c7993bd006bcfc6458281ee3
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cdcd2bd18ddbc4a2294985defdb8035a98b6792027b8bf9f1cd64ef323375f4
[INFO] running `Command { std: "docker" "start" "-a" "3cdcd2bd18ddbc4a2294985defdb8035a98b6792027b8bf9f1cd64ef323375f4", kill_on_drop: false }`
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[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling async-broadcast v0.7.2
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling ordered-stream v0.2.0
[INFO] [stderr]    Compiling open v5.3.2
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling fern v0.7.1
[INFO] [stderr]    Compiling nill v1.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nill-1.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_trait_impl)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nill` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3cdcd2bd18ddbc4a2294985defdb8035a98b6792027b8bf9f1cd64ef323375f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cdcd2bd18ddbc4a2294985defdb8035a98b6792027b8bf9f1cd64ef323375f4", kill_on_drop: false }`
[INFO] [stdout] 3cdcd2bd18ddbc4a2294985defdb8035a98b6792027b8bf9f1cd64ef323375f4
