[INFO] cloning repository https://github.com/emkay/tiny-cache [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emkay/tiny-cache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femkay%2Ftiny-cache", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femkay%2Ftiny-cache'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f57697a52bdc090baffcc3238edb439a34f29564 [INFO] checking emkay/tiny-cache against 1.95.0 for pr-155915 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femkay%2Ftiny-cache" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/emkay/tiny-cache [INFO] finished tweaking git repo https://github.com/emkay/tiny-cache [INFO] tweaked toml for git repo https://github.com/emkay/tiny-cache written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/emkay/tiny-cache on toolchain 1.95.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/emkay/tiny-cache 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded futures-sink-preview v0.2.2 [INFO] [stderr] Downloaded futures-io-preview v0.2.2 [INFO] [stderr] Downloaded futures-executor-preview v0.2.2 [INFO] [stderr] Downloaded futures-channel-preview v0.2.2 [INFO] [stderr] Downloaded futures-stable-preview v0.2.3 [INFO] [stderr] Downloaded futures-async-runtime-preview v0.2.3 [INFO] [stderr] Downloaded futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-core-preview v0.2.3 [INFO] [stderr] Downloaded futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded async-task v1.0.0 [INFO] [stderr] Downloaded futures-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded futures-util-preview v0.2.2 [INFO] [stderr] Downloaded futures-timer v0.3.0 [INFO] [stderr] Downloaded futures-preview v0.2.2 [INFO] [stderr] Downloaded futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Downloaded async-std v0.99.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1c874a1eaccbc5aec667bf7e9c746345a958e34f2c8234704e54805b65824b7e [INFO] running `Command { std: "docker" "start" "-a" "1c874a1eaccbc5aec667bf7e9c746345a958e34f2c8234704e54805b65824b7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c874a1eaccbc5aec667bf7e9c746345a958e34f2c8234704e54805b65824b7e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c874a1eaccbc5aec667bf7e9c746345a958e34f2c8234704e54805b65824b7e", kill_on_drop: false }` [INFO] [stdout] 1c874a1eaccbc5aec667bf7e9c746345a958e34f2c8234704e54805b65824b7e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bc63ab08f009817410a212a3ea33dea1ed006820b245ee3c73ef1b232fcf48f0 [INFO] running `Command { std: "docker" "start" "-a" "bc63ab08f009817410a212a3ea33dea1ed006820b245ee3c73ef1b232fcf48f0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.18 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.18 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-core-preview v0.2.3 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking async-task v1.0.0 [INFO] [stderr] Checking futures-channel-preview v0.2.2 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-sink-preview v0.2.2 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking futures-io-preview v0.2.2 [INFO] [stderr] Checking futures-util-preview v0.2.2 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking futures-executor-preview v0.2.2 [INFO] [stderr] Checking futures-stable-preview v0.2.3 [INFO] [stderr] Checking futures-async-runtime-preview v0.2.3 [INFO] [stderr] Checking futures-preview v0.2.2 [INFO] [stderr] Checking futures-executor-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-preview v0.3.0-alpha.18 [INFO] [stderr] Checking futures-timer v0.3.0 [INFO] [stderr] Checking async-std v0.99.3 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/async-std-0.99.3/src/lib.rs:30:1 [INFO] [stdout] | [INFO] [stdout] 30 | #![feature(async_await)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute [INFO] [stdout] | [INFO] [stdout] = help: the feature `async_await` has been stable since `1.39.0` and no longer requires an attribute to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `async-std` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "bc63ab08f009817410a212a3ea33dea1ed006820b245ee3c73ef1b232fcf48f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc63ab08f009817410a212a3ea33dea1ed006820b245ee3c73ef1b232fcf48f0", kill_on_drop: false }` [INFO] [stdout] bc63ab08f009817410a212a3ea33dea1ed006820b245ee3c73ef1b232fcf48f0