[INFO] fetching crate larn 0.1.2...
[INFO] testing larn-0.1.2 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate larn 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate larn 0.1.2
[INFO] finished tweaking crates.io crate larn 0.1.2
[INFO] tweaked toml for crates.io crate larn 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate larn 0.1.2 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate larn 0.1.2 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57
[INFO] running `Command { std: "docker" "start" "859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57", 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" "859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57", 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" "859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling proc-macro2 v1.0.88
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling bytes v1.7.2
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]    Compiling hashbrown v0.15.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling openssl v0.10.68
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling cc v1.1.31
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling tinyvec v1.8.0
[INFO] [stderr]    Compiling bitflags v2.6.0
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[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling log v0.4.22
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[INFO] [stderr]    Compiling anstyle-parse v0.2.5
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[INFO] [stderr]    Compiling colorchoice v1.0.2
[INFO] [stderr]    Compiling syn v2.0.81
[INFO] [stderr]    Compiling anstyle-query v1.1.1
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
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[INFO] [stderr]    Compiling clap_builder v4.5.20
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[INFO] [stderr]    Compiling combine v4.6.7
[INFO] [stderr]    Compiling sync_wrapper v1.0.1
[INFO] [stderr]    Compiling encoding_rs v0.8.34
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling arc-swap v1.7.1
[INFO] [stderr]    Compiling sha1_smol v1.0.1
[INFO] [stderr]    Compiling ipnet v2.10.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling redis v0.27.5
[INFO] [stderr]    Compiling tokio-util v0.7.12
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.4.6
[INFO] [stderr]    Compiling hyper v1.5.0
[INFO] [stderr]    Compiling hyper-util v0.1.9
[INFO] [stderr]    Compiling hyper-tls v0.6.0
[INFO] [stderr]    Compiling reqwest v0.12.8
[INFO] [stderr]    Compiling larn v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `!: FromRedisValue` is not satisfied
[INFO] [stdout]     --> src/commands/learn.rs:21:17
[INFO] [stdout]      |
[INFO] [stdout]   21 |             con.del(&key)?;  
[INFO] [stdout]      |                 ^^^ the trait `FromRedisValue` is not implemented for `!`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `FromRedisValue`:
[INFO] [stdout]                ()
[INFO] [stdout]                (T12,)
[INFO] [stdout]                (T11, T12)
[INFO] [stdout]                (T10, T11, T12)
[INFO] [stdout]                (T9, T10, T11, T12)
[INFO] [stdout]                (T8, T9, T10, T11, T12)
[INFO] [stdout]                (T7, T8, T9, T10, T11, T12)
[INFO] [stdout]                (T6, T7, T8, T9, T10, T11, T12)
[INFO] [stdout]              and 48 others
[INFO] [stdout]      = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 <https://github.com/rust-lang/rust/issues/148922> for more information)
[INFO] [stdout]      = help: you might have intended to use the type `()` here instead
[INFO] [stdout] note: required by a bound in `del`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/redis-0.27.5/src/commands/macros.rs:44:60
[INFO] [stdout]      |
[INFO] [stdout]   39 |           pub trait Commands : ConnectionLike+Sized {
[INFO] [stdout] ...
[INFO] [stdout]   44 |                   fn $name<$lifetime, $($tyargs: $ty, )* RV: FromRedisValue>(
[INFO] [stdout]      |                                                              ^^^^^^^^^^^^^^ required by this bound in `Commands::del`
[INFO] [stdout]      |
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/redis-0.27.5/src/commands/mod.rs:136:1
[INFO] [stdout]      |
[INFO] [stdout]  136 | / implement_commands! {
[INFO] [stdout]  137 | |     'a
[INFO] [stdout] ...    |
[INFO] [stdout]  213 | |     fn del<K: ToRedisArgs>(key: K) {
[INFO] [stdout] ...    |
[INFO] [stdout] 2179 | | }
[INFO] [stdout]      | |_- in this macro invocation
[INFO] [stdout]      = note: this error originates in the macro `implement_commands` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `larn` (bin "larn") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57", kill_on_drop: false }`
[INFO] [stdout] 859dfb9df6782f7585392b38923266c4e86558748aee28ce01492b9804a05f57
