[INFO] fetching crate lark 0.1.0... [INFO] testing lark-0.1.0 against 1.60.0 for beta-1.61-1 [INFO] extracting crate lark 0.1.0 into /workspace/builds/worker-67/source [INFO] validating manifest of crates.io crate lark 0.1.0 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] removed /workspace/builds/worker-67/source/rust-toolchain [INFO] started tweaking crates.io crate lark 0.1.0 [INFO] finished tweaking crates.io crate lark 0.1.0 [INFO] tweaked toml for crates.io crate lark 0.1.0 written to /workspace/builds/worker-67/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lark-test-generate v0.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 65e3b6a018cdcb5c63fca76232c11a23443959e119443e6b25beb2b34a2e3128 [INFO] running `Command { std: "docker" "start" "-a" "65e3b6a018cdcb5c63fca76232c11a23443959e119443e6b25beb2b34a2e3128", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "65e3b6a018cdcb5c63fca76232c11a23443959e119443e6b25beb2b34a2e3128", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65e3b6a018cdcb5c63fca76232c11a23443959e119443e6b25beb2b34a2e3128", kill_on_drop: false }` [INFO] [stdout] 65e3b6a018cdcb5c63fca76232c11a23443959e119443e6b25beb2b34a2e3128 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] f12e70b1aedb7a866c38d5bb69888b61333e7cc7647ebea8c6b492286d575499 [INFO] running `Command { std: "docker" "start" "-a" "f12e70b1aedb7a866c38d5bb69888b61333e7cc7647ebea8c6b492286d575499", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling stable_deref_trait v1.2.0 [INFO] [stderr] Compiling unicode-bidi v0.3.7 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling itoa v1.0.1 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling termcolor v1.1.3 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling datafrog v2.0.1 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling libc v0.2.123 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling generational-arena v0.2.8 [INFO] [stderr] Compiling owning_ref v0.4.1 [INFO] [stderr] Compiling tinyvec v1.5.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling lock_api v0.1.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling smallvec v0.6.14 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling unicode-normalization v0.1.19 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling tempfile v2.2.0 [INFO] [stderr] Compiling render-tree v0.1.1 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling lark-debug-with v0.1.0 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lark-debug-with-0.1.0/src/lib.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | #![feature(box_patterns)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lark-debug-with-0.1.0/src/lib.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(never_type)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lark-debug-with-0.1.0/src/lib.rs:8:1 [INFO] [stdout] | [INFO] [stdout] 8 | #![feature(in_band_lifetimes)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lark-debug-with-0.1.0/src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `lark-debug-with` due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "f12e70b1aedb7a866c38d5bb69888b61333e7cc7647ebea8c6b492286d575499", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f12e70b1aedb7a866c38d5bb69888b61333e7cc7647ebea8c6b492286d575499", kill_on_drop: false }` [INFO] [stdout] f12e70b1aedb7a866c38d5bb69888b61333e7cc7647ebea8c6b492286d575499