[INFO] fetching crate async-fred-session 0.1.5...
[INFO] testing async-fred-session-0.1.5 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate async-fred-session 0.1.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate async-fred-session 0.1.5
[INFO] finished tweaking crates.io crate async-fred-session 0.1.5
[INFO] tweaked toml for crates.io crate async-fred-session 0.1.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-fred-session 0.1.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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 141 packages to highest compatible versions
[INFO] [stderr]       Adding fred v6.3.2 (available: v10.1.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462
[INFO] running `Command { std: "docker" "start" "82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462", 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" "82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462" "/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" "82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462", 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" "82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
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[INFO] [stderr]    Compiling redis-protocol v4.1.0
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[INFO] [stderr]    Compiling async-session v3.0.0
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling fred v6.3.2
[INFO] [stderr]    Compiling async-fred-session v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `!: fred::types::FromRedis` is not satisfied
[INFO] [stdout]    --> src/lib.rs:125:19
[INFO] [stdout]     |
[INFO] [stdout] 125 |         self.pool.set(id, string, expiration, None, false).await?;
[INFO] [stdout]     |                   ^^^ the trait `fred::types::FromRedis` is not implemented for `!`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the following other types implement trait `fred::types::FromRedis`:
[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 31 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 `set`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fred-6.3.2/src/commands/interfaces/keys.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  11 | pub trait KeysInterface: ClientLike + Sized {
[INFO] [stdout] ...
[INFO] [stdout]  91 |   async fn set<R, K, V>(
[INFO] [stdout] ...
[INFO] [stdout] 100 |     R: FromRedis,
[INFO] [stdout]     |        ^^^^^^^^^ required by this bound in `KeysInterface::set`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-fred-session` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462", kill_on_drop: false }`
[INFO] [stdout] 82b07f11ddcad5e1ff1f90e3235ba26b266d0f98c3e3be25ad4abe19281ea462
