[INFO] fetching crate squid 2.0.3...
[INFO] testing squid-2.0.3 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate squid 2.0.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate squid 2.0.3
[INFO] finished tweaking crates.io crate squid 2.0.3
[INFO] tweaked toml for crates.io crate squid 2.0.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate squid 2.0.3 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate squid 2.0.3 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.219
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f
[INFO] running `Command { std: "docker" "start" "1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling libloading v0.8.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling squid_ewe v2.0.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling memmap2 v0.7.1
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling scroll_derive v0.11.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling scroll v0.11.0
[INFO] [stderr]    Compiling goblin v0.7.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling squid v2.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![feature(btree_extract_if)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_extract_if` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![feature(btree_extract_if)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `squid` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f", kill_on_drop: false }`
[INFO] [stdout] 1895cd780fbd1e7d8ddc30ea271573b9611452335b2447a4f8232d1ed1fffd6f
