[INFO] fetching crate qbit-rs 0.4.1...
[INFO] testing qbit-rs-0.4.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate qbit-rs 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate qbit-rs 0.4.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qbit-rs 0.4.1
[INFO] finished tweaking crates.io crate qbit-rs 0.4.1
[INFO] tweaked toml for crates.io crate qbit-rs 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typed-builder v0.14.0
[INFO] [stderr]   Downloaded mod_use v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40b691bede8600135b7f53d0172e0eb5c8b85f262f402a056b690b3c24bdfcec
[INFO] running `Command { std: "docker" "start" "-a" "40b691bede8600135b7f53d0172e0eb5c8b85f262f402a056b690b3c24bdfcec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40b691bede8600135b7f53d0172e0eb5c8b85f262f402a056b690b3c24bdfcec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b691bede8600135b7f53d0172e0eb5c8b85f262f402a056b690b3c24bdfcec", kill_on_drop: false }`
[INFO] [stdout] 40b691bede8600135b7f53d0172e0eb5c8b85f262f402a056b690b3c24bdfcec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7fc0ac3d0594457c2899bfc565b6bc4d0a7b4de29a357242b8e76fc7e6f2219
[INFO] running `Command { std: "docker" "start" "-a" "b7fc0ac3d0594457c2899bfc565b6bc4d0a7b4de29a357242b8e76fc7e6f2219", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling http v0.2.11
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling mod_use v0.2.1
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling typed-builder v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling darling_macro v0.20.3
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling darling v0.20.3
[INFO] [stderr]    Compiling serde_with_macros v2.3.3
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling serde_with v2.3.3
[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.23
[INFO] [stderr]    Compiling qbit-rs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.20s
[INFO] running `Command { std: "docker" "inspect" "b7fc0ac3d0594457c2899bfc565b6bc4d0a7b4de29a357242b8e76fc7e6f2219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7fc0ac3d0594457c2899bfc565b6bc4d0a7b4de29a357242b8e76fc7e6f2219", kill_on_drop: false }`
[INFO] [stdout] b7fc0ac3d0594457c2899bfc565b6bc4d0a7b4de29a357242b8e76fc7e6f2219
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 547d5178da6f86f02486319f1cecd8ec62e328f369f3523da818f6bb7e5d2087
[INFO] running `Command { std: "docker" "start" "-a" "547d5178da6f86f02486319f1cecd8ec62e328f369f3523da818f6bb7e5d2087", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.23
[INFO] [stderr]    Compiling qbit-rs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(test, feature(lazy_cell))]
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `qbit-rs` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "547d5178da6f86f02486319f1cecd8ec62e328f369f3523da818f6bb7e5d2087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547d5178da6f86f02486319f1cecd8ec62e328f369f3523da818f6bb7e5d2087", kill_on_drop: false }`
[INFO] [stdout] 547d5178da6f86f02486319f1cecd8ec62e328f369f3523da818f6bb7e5d2087
[INFO] testing qbit-rs-0.4.1 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate qbit-rs 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate qbit-rs 0.4.1 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qbit-rs 0.4.1
[INFO] finished tweaking crates.io crate qbit-rs 0.4.1
[INFO] tweaked toml for crates.io crate qbit-rs 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f52ebc1b6fe3e32ecd60eb1842c6192858abfd5b31f356e3288b363aaed942c6
[INFO] running `Command { std: "docker" "start" "-a" "f52ebc1b6fe3e32ecd60eb1842c6192858abfd5b31f356e3288b363aaed942c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f52ebc1b6fe3e32ecd60eb1842c6192858abfd5b31f356e3288b363aaed942c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52ebc1b6fe3e32ecd60eb1842c6192858abfd5b31f356e3288b363aaed942c6", kill_on_drop: false }`
[INFO] [stdout] f52ebc1b6fe3e32ecd60eb1842c6192858abfd5b31f356e3288b363aaed942c6
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 735da9e7958af88f77a057a264edd1305727e5e61e807db5d3177eca3db92c33
[INFO] running `Command { std: "docker" "start" "-a" "735da9e7958af88f77a057a264edd1305727e5e61e807db5d3177eca3db92c33", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling http v0.2.11
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling mod_use v0.2.1
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling typed-builder v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling darling_macro v0.20.3
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling darling v0.20.3
[INFO] [stderr]    Compiling serde_with_macros v2.3.3
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling serde_with v2.3.3
[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.23
[INFO] [stderr]    Compiling qbit-rs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.82s
[INFO] running `Command { std: "docker" "inspect" "735da9e7958af88f77a057a264edd1305727e5e61e807db5d3177eca3db92c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735da9e7958af88f77a057a264edd1305727e5e61e807db5d3177eca3db92c33", kill_on_drop: false }`
[INFO] [stdout] 735da9e7958af88f77a057a264edd1305727e5e61e807db5d3177eca3db92c33
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ff20190c3cdddf16c4b90ad7601ad04641c63aebbb3837a65197e9d3216bbae
[INFO] running `Command { std: "docker" "start" "-a" "8ff20190c3cdddf16c4b90ad7601ad04641c63aebbb3837a65197e9d3216bbae", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.23
[INFO] [stderr]    Compiling qbit-rs v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(test, feature(lazy_cell))]
[INFO] [stdout]   |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `qbit-rs` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8ff20190c3cdddf16c4b90ad7601ad04641c63aebbb3837a65197e9d3216bbae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ff20190c3cdddf16c4b90ad7601ad04641c63aebbb3837a65197e9d3216bbae", kill_on_drop: false }`
[INFO] [stdout] 8ff20190c3cdddf16c4b90ad7601ad04641c63aebbb3837a65197e9d3216bbae
