[INFO] fetching crate af_search 0.1.2...
[INFO] testing af_search-0.1.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate af_search 0.1.2 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate af_search 0.1.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate af_search 0.1.2
[INFO] finished tweaking crates.io crate af_search 0.1.2
[INFO] tweaked toml for crates.io crate af_search 0.1.2 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate af_search 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-native-tls v0.3.3
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[INFO] [stderr]   Downloaded rocket_codegen v0.5.0-rc.1
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[INFO] [stderr]   Downloaded af_path v0.2.0
[INFO] [stderr]   Downloaded iso8601 v0.3.0
[INFO] [stderr]   Downloaded locale v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 460d2ae62454f697336b264644934a5f33c1766ea590ed8a7e08bb5b7877653c
[INFO] running `Command { std: "docker" "start" "-a" "460d2ae62454f697336b264644934a5f33c1766ea590ed8a7e08bb5b7877653c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "460d2ae62454f697336b264644934a5f33c1766ea590ed8a7e08bb5b7877653c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460d2ae62454f697336b264644934a5f33c1766ea590ed8a7e08bb5b7877653c", kill_on_drop: false }`
[INFO] [stdout] 460d2ae62454f697336b264644934a5f33c1766ea590ed8a7e08bb5b7877653c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88dda0ab6d6a508d9c733a4cc8834b86da65b5aa25eb4911a7a408ca34379885
[INFO] running `Command { std: "docker" "start" "-a" "88dda0ab6d6a508d9c733a4cc8834b86da65b5aa25eb4911a7a408ca34379885", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]    Compiling sqlx-rt v0.5.11
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[INFO] [stderr]    Compiling tokio-stream v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.79
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[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling ubyte v0.10.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling h2 v0.3.12
[INFO] [stderr]    Compiling sqlx-core v0.5.11
[INFO] [stderr]    Compiling serde_yaml v0.8.23
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling af_path v0.2.0
[INFO] [stderr]    Compiling hyper v0.14.18
[INFO] [stderr]    Compiling sqlx-macros v0.5.11
[INFO] [stderr]    Compiling rocket_http v0.5.0-rc.1
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-rc.1
[INFO] [stderr]    Compiling sqlx v0.5.11
[INFO] [stderr]    Compiling af_search v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `db_time`
[INFO] [stdout]    --> src/search/table.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn get_sql(db_time: &Update, name: &str, fields: &HashMap<String, json::Field>) -> String {
[INFO] [stdout]     |            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_db_time`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_btree_new)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `af_search` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "88dda0ab6d6a508d9c733a4cc8834b86da65b5aa25eb4911a7a408ca34379885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88dda0ab6d6a508d9c733a4cc8834b86da65b5aa25eb4911a7a408ca34379885", kill_on_drop: false }`
[INFO] [stdout] 88dda0ab6d6a508d9c733a4cc8834b86da65b5aa25eb4911a7a408ca34379885