[INFO] cloning repository https://github.com/MSleepyPanda/explain-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MSleepyPanda/explain-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 10522cf5c80910dfa6a0c1db49360ecef247cf89 [INFO] testing MSleepyPanda/explain-rs against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MSleepyPanda/explain-rs on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MSleepyPanda/explain-rs [INFO] finished tweaking git repo https://github.com/MSleepyPanda/explain-rs [INFO] tweaked toml for git repo https://github.com/MSleepyPanda/explain-rs written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/MSleepyPanda/explain-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 serde_derive_internals v0.18.0 [INFO] [stderr] Downloaded sha1 v0.3.0 [INFO] [stderr] Downloaded serde_derive v1.0.24 [INFO] [stderr] Downloaded stdweb v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1d411eda34ecc0cee6fd4abb94a7e2928cd0ae0f0568a2201c0536cbd15df867 [INFO] running `Command { std: "docker" "start" "-a" "1d411eda34ecc0cee6fd4abb94a7e2928cd0ae0f0568a2201c0536cbd15df867", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1d411eda34ecc0cee6fd4abb94a7e2928cd0ae0f0568a2201c0536cbd15df867", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d411eda34ecc0cee6fd4abb94a7e2928cd0ae0f0568a2201c0536cbd15df867", kill_on_drop: false }` [INFO] [stdout] 1d411eda34ecc0cee6fd4abb94a7e2928cd0ae0f0568a2201c0536cbd15df867 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 47fa715a06e9a46f50fa9d268b0a667fe0a04581f45e8f7f2cc43171ad6bd81e [INFO] running `Command { std: "docker" "start" "-a" "47fa715a06e9a46f50fa9d268b0a667fe0a04581f45e8f7f2cc43171ad6bd81e", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.1.41 [INFO] [stderr] Compiling unicode-normalization v0.1.5 [INFO] [stderr] Compiling serde v1.0.24 [INFO] [stderr] Compiling itoa v0.3.4 [INFO] [stderr] Compiling either v1.4.0 [INFO] [stderr] Compiling percent-encoding v1.0.1 (https://github.com/servo/rust-url#027450de) [INFO] [stderr] Compiling peresil v0.3.0 (https://github.com/shepmaster/peresil#6e4f794b) [INFO] [stderr] Compiling lazy_static v1.0.0 [INFO] [stderr] Compiling sha1 v0.3.0 [INFO] [stderr] Compiling fuzzy-pickles-derive v0.1.0 (https://github.com/shepmaster/fuzzy-pickles#abf5ae5b) [INFO] [stderr] Compiling serde_derive_internals v0.18.0 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/peresil-7403d1c1394b7448/6e4f794/src/lib.rs:1:38 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(feature = "combinators", feature(conservative_impl_trait))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute [INFO] [stdout] | [INFO] [stdout] = help: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling itertools v0.7.5 [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `peresil` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "47fa715a06e9a46f50fa9d268b0a667fe0a04581f45e8f7f2cc43171ad6bd81e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "47fa715a06e9a46f50fa9d268b0a667fe0a04581f45e8f7f2cc43171ad6bd81e", kill_on_drop: false }` [INFO] [stdout] 47fa715a06e9a46f50fa9d268b0a667fe0a04581f45e8f7f2cc43171ad6bd81e