[INFO] fetching crate noria-mir 0.6.0...
[INFO] testing noria-mir-0.6.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate noria-mir 0.6.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate noria-mir 0.6.0
[INFO] finished tweaking crates.io crate noria-mir 0.6.0
[INFO] tweaked toml for crates.io crate noria-mir 0.6.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate noria-mir 0.6.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 299 packages to latest compatible versions
[INFO] [stderr]       Adding petgraph v0.5.1 (available: v0.8.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stream-cancel v0.5.2
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded tower-buffer v0.3.0
[INFO] [stderr]   Downloaded timekeeper v0.3.2
[INFO] [stderr]   Downloaded noria-common v0.6.0
[INFO] [stderr]   Downloaded fs_extra v1.3.0
[INFO] [stderr]   Downloaded assert_infrequent v0.1.0
[INFO] [stderr]   Downloaded jemallocator v0.3.2
[INFO] [stderr]   Downloaded mio-extras v2.0.6
[INFO] [stderr]   Downloaded arccstr v1.3.3
[INFO] [stderr]   Downloaded tower-discover v0.3.0
[INFO] [stderr]   Downloaded tower-load v0.3.0
[INFO] [stderr]   Downloaded tokio-tower v0.4.0
[INFO] [stderr]   Downloaded noria v0.6.1
[INFO] [stderr]   Downloaded evmap v11.0.0
[INFO] [stderr]   Downloaded left-right v0.11.6
[INFO] [stderr]   Downloaded generator v0.7.5
[INFO] [stderr]   Downloaded zookeeper v0.5.10
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded noria-dataflow v0.6.0
[INFO] [stderr]   Downloaded hashbag v0.1.12
[INFO] [stderr]   Downloaded tower-balance v0.3.0
[INFO] [stderr]   Downloaded tower-limit v0.3.1
[INFO] [stderr]   Downloaded ahash v0.3.8
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded snowflake v1.3.0
[INFO] [stderr]   Downloaded nom-sql v0.0.11
[INFO] [stderr]   Downloaded tower-make v0.3.0
[INFO] [stderr]   Downloaded tower-ready-cache v0.3.1
[INFO] [stderr]   Downloaded zookeeper_derive v0.4.1
[INFO] [stderr]   Downloaded rocksdb v0.14.0
[INFO] [stderr]   Downloaded jemalloc-sys v0.3.2
[INFO] [stderr]   Downloaded async-bincode v0.5.1
[INFO] [stderr]   Downloaded librocksdb-sys v6.20.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aef4b3ada906ea571336a6b17a9cdfc4028cda0d9b41d3784d14b2ee9068fe96
[INFO] running `Command { std: "docker" "start" "-a" "aef4b3ada906ea571336a6b17a9cdfc4028cda0d9b41d3784d14b2ee9068fe96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aef4b3ada906ea571336a6b17a9cdfc4028cda0d9b41d3784d14b2ee9068fe96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef4b3ada906ea571336a6b17a9cdfc4028cda0d9b41d3784d14b2ee9068fe96", kill_on_drop: false }`
[INFO] [stdout] aef4b3ada906ea571336a6b17a9cdfc4028cda0d9b41d3784d14b2ee9068fe96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 660a336250484f7af9e7882c4bd70e67124f3e862643112148a2d61e495efaf5
[INFO] running `Command { std: "docker" "start" "-a" "660a336250484f7af9e7882c4bd70e67124f3e862643112148a2d61e495efaf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling slog v2.8.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling cc v1.2.44
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling zookeeper_derive v0.4.1
[INFO] [stderr]    Compiling tower-make v0.3.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling left-right v0.11.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling zookeeper v0.5.10
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling hashbag v0.1.12
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling timekeeper v0.3.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling evmap v11.0.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling lexical v5.2.2
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling tower-load v0.3.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tower-limit v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling assert_infrequent v0.1.0
[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/assert_infrequent-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `assert_infrequent` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "660a336250484f7af9e7882c4bd70e67124f3e862643112148a2d61e495efaf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "660a336250484f7af9e7882c4bd70e67124f3e862643112148a2d61e495efaf5", kill_on_drop: false }`
[INFO] [stdout] 660a336250484f7af9e7882c4bd70e67124f3e862643112148a2d61e495efaf5