[INFO] fetching crate kalgan_cache 0.9.1...
[INFO] checking kalgan_cache-0.9.1 against try#1c4199da70f816f2239f41c55168ff75a3663718 for pr-155499
[INFO] extracting crate kalgan_cache 0.9.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate kalgan_cache 0.9.1
[INFO] finished tweaking crates.io crate kalgan_cache 0.9.1
[INFO] tweaked toml for crates.io crate kalgan_cache 0.9.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kalgan_cache 0.9.1 on toolchain 1c4199da70f816f2239f41c55168ff75a3663718
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "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" "+1c4199da70f816f2239f41c55168ff75a3663718" "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 45 packages to latest compatible versions
[INFO] [stderr]       Adding redis v0.21.7 (available: v1.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d19b597e68455ca388f4a3fb3284eabb6944b930aa31754d408a58cab12764f5
[INFO] running `Command { std: "docker" "start" "-a" "d19b597e68455ca388f4a3fb3284eabb6944b930aa31754d408a58cab12764f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d19b597e68455ca388f4a3fb3284eabb6944b930aa31754d408a58cab12764f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19b597e68455ca388f4a3fb3284eabb6944b930aa31754d408a58cab12764f5", kill_on_drop: false }`
[INFO] [stdout] d19b597e68455ca388f4a3fb3284eabb6944b930aa31754d408a58cab12764f5
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13001b160c17e23c692c82a6327b3c443c3e079197cb4b2e6bf0ac4887d2621d
[INFO] running `Command { std: "docker" "start" "-a" "13001b160c17e23c692c82a6327b3c443c3e079197cb4b2e6bf0ac4887d2621d", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking combine v4.6.7
[INFO] [stderr]     Checking redis v0.21.7
[INFO] [stdout] error[E0277]: the trait bound `!: FromRedisValue` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/redis-0.21.7/src/script.rs:143:30
[INFO] [stdout]     |
[INFO] [stdout] 143 | ...                   .query(con)?;
[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]               (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
[INFO] [stdout]               (T10, T11, T12)
[INFO] [stdout]               (T11, T12)
[INFO] [stdout]               (T12,)
[INFO] [stdout]               (T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
[INFO] [stdout]               (T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
[INFO] [stdout]               (T4, T5, T6, T7, T8, T9, T10, T11, T12)
[INFO] [stdout]             and 40 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 `Cmd::query`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/redis-0.21.7/src/cmd.rs:367:21
[INFO] [stdout]     |
[INFO] [stdout] 367 |     pub fn query<T: FromRedisValue>(&self, con: &mut dyn ConnectionLike) -> RedisResult<T> {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ required by this bound in `Cmd::query`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redis` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "13001b160c17e23c692c82a6327b3c443c3e079197cb4b2e6bf0ac4887d2621d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13001b160c17e23c692c82a6327b3c443c3e079197cb4b2e6bf0ac4887d2621d", kill_on_drop: false }`
[INFO] [stdout] 13001b160c17e23c692c82a6327b3c443c3e079197cb4b2e6bf0ac4887d2621d