[INFO] fetching crate const_format 0.2.19...
[INFO] testing const_format-0.2.19 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate const_format 0.2.19 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate const_format 0.2.19 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate const_format 0.2.19
[INFO] finished tweaking crates.io crate const_format 0.2.19
[INFO] tweaked toml for crates.io crate const_format 0.2.19 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_format_proc_macros v0.2.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c634024d93c61a579b144a214caee099400762cac0635508e8adc41e733bb3e2
[INFO] running `Command { std: "docker" "start" "-a" "c634024d93c61a579b144a214caee099400762cac0635508e8adc41e733bb3e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c634024d93c61a579b144a214caee099400762cac0635508e8adc41e733bb3e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c634024d93c61a579b144a214caee099400762cac0635508e8adc41e733bb3e2", kill_on_drop: false }`
[INFO] [stdout] c634024d93c61a579b144a214caee099400762cac0635508e8adc41e733bb3e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d45339847875c388090771c1f990239f7ad391a5d9b0d0863568d85dd591dfc1
[INFO] running `Command { std: "docker" "start" "-a" "d45339847875c388090771c1f990239f7ad391a5d9b0d0863568d85dd591dfc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.14
[INFO] [stderr]    Compiling const_format v0.2.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `Command { std: "docker" "inspect" "d45339847875c388090771c1f990239f7ad391a5d9b0d0863568d85dd591dfc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45339847875c388090771c1f990239f7ad391a5d9b0d0863568d85dd591dfc1", kill_on_drop: false }`
[INFO] [stdout] d45339847875c388090771c1f990239f7ad391a5d9b0d0863568d85dd591dfc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 004bca6a204a187c151487cc5aa38caca09555ad2585d5a688422fd9471aee6f
[INFO] running `Command { std: "docker" "start" "-a" "004bca6a204a187c151487cc5aa38caca09555ad2585d5a688422fd9471aee6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling const_format v0.2.19 (/opt/rustwide/workdir)
[INFO] [stdout] error: tests must be run with the "testing" feature
[INFO] [stdout]    --> src/lib.rs:503:1
[INFO] [stdout]     |
[INFO] [stdout] 503 | compile_error! { "tests must be run with the \"testing\" feature" }
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `const_format` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "004bca6a204a187c151487cc5aa38caca09555ad2585d5a688422fd9471aee6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004bca6a204a187c151487cc5aa38caca09555ad2585d5a688422fd9471aee6f", kill_on_drop: false }`
[INFO] [stdout] 004bca6a204a187c151487cc5aa38caca09555ad2585d5a688422fd9471aee6f