[INFO] fetching crate mongo_sync 0.1.0... [INFO] testing mongo_sync-0.1.0 against 1.60.0 for beta-1.61-1 [INFO] extracting crate mongo_sync 0.1.0 into /workspace/builds/worker-52/source [INFO] validating manifest of crates.io crate mongo_sync 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] started tweaking crates.io crate mongo_sync 0.1.0 [INFO] finished tweaking crates.io crate mongo_sync 0.1.0 [INFO] tweaked toml for crates.io crate mongo_sync 0.1.0 written to /workspace/builds/worker-52/source/Cargo.toml [INFO] crate crates.io crate mongo_sync 0.1.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-macros v1.4.1 [INFO] [stderr] Downloaded darling_core v0.13.0 [INFO] [stderr] Downloaded darling v0.13.0 [INFO] [stderr] Downloaded darling_macro v0.13.0 [INFO] [stderr] Downloaded serde_with_macros v1.5.0 [INFO] [stderr] Downloaded serde_with v1.10.0 [INFO] [stderr] Downloaded os_info v3.0.7 [INFO] [stderr] Downloaded rustversion v1.0.5 [INFO] [stderr] Downloaded os_str_bytes v3.1.0 [INFO] [stderr] Downloaded sharded-slab v0.1.3 [INFO] [stderr] Downloaded clap_derive v3.0.0-beta.4 [INFO] [stderr] Downloaded tracing-appender v0.1.2 [INFO] [stderr] Downloaded clap v3.0.0-beta.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 943d2406dcdb705c1400242ee2f0bf6fb4980ad1d26c446e297868e9cead1158 [INFO] running `Command { std: "docker" "start" "-a" "943d2406dcdb705c1400242ee2f0bf6fb4980ad1d26c446e297868e9cead1158", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "943d2406dcdb705c1400242ee2f0bf6fb4980ad1d26c446e297868e9cead1158", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "943d2406dcdb705c1400242ee2f0bf6fb4980ad1d26c446e297868e9cead1158", kill_on_drop: false }` [INFO] [stdout] 943d2406dcdb705c1400242ee2f0bf6fb4980ad1d26c446e297868e9cead1158 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 27219ae2bae25ecd02e7b2c919ee39fe4e506babd4e6780eba12be8caf8ac11d [INFO] running `Command { std: "docker" "start" "-a" "27219ae2bae25ecd02e7b2c919ee39fe4e506babd4e6780eba12be8caf8ac11d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling syn v1.0.80 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling pin-project-lite v0.2.7 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling futures-core v0.3.17 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling futures-io v0.3.17 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling typenum v1.14.0 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling cc v1.0.71 [INFO] [stderr] Compiling cache-padded v1.1.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling smallvec v1.7.0 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling parking v2.0.0 [INFO] [stderr] Compiling futures-task v0.3.17 [INFO] [stderr] Compiling waker-fn v1.1.0 [INFO] [stderr] Compiling fastrand v1.5.0 [INFO] [stderr] Compiling event-listener v2.5.1 [INFO] [stderr] Compiling unicode-bidi v0.3.7 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling futures-channel v0.3.17 [INFO] [stderr] Compiling async-trait v0.1.51 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling async-task v4.0.3 [INFO] [stderr] Compiling match_cfg v0.1.0 [INFO] [stderr] Compiling atomic-waker v1.0.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling ipnet v2.3.1 [INFO] [stderr] Compiling rustversion v1.0.5 [INFO] [stderr] Compiling base64 v0.13.0 [INFO] [stderr] Compiling subtle v2.4.1 [INFO] [stderr] Compiling data-encoding v2.3.2 [INFO] [stderr] Compiling cpufeatures v0.2.1 [INFO] [stderr] Compiling crossbeam-queue v0.3.2 [INFO] [stderr] Compiling hex v0.4.3 [INFO] [stderr] Compiling futures-sink v0.3.17 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling take_mut v0.2.2 [INFO] [stderr] Compiling os_str_bytes v3.1.0 [INFO] [stderr] Compiling termcolor v1.1.2 [INFO] [stderr] Compiling tinyvec v1.5.0 [INFO] [stderr] Compiling concurrent-queue v1.2.2 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling instant v0.1.11 [INFO] [stderr] Compiling tracing-core v0.1.21 [INFO] [stderr] Compiling lock_api v0.4.5 [INFO] [stderr] Compiling lru-cache v0.1.2 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling sharded-slab v0.1.3 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling textwrap v0.14.2 [INFO] [stderr] Compiling thread_local v1.1.3 [INFO] [stderr] Compiling async-mutex v1.4.0 [INFO] [stderr] Compiling async-lock v2.4.0 [INFO] [stderr] Compiling value-bag v1.0.0-alpha.7 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling ahash v0.7.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling form_urlencoded v1.0.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling futures-macro v0.3.17 [INFO] [stderr] Compiling tokio v1.12.0 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling futures-lite v1.12.0 [INFO] [stderr] Compiling async-channel v1.6.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling matchers v0.0.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling unicode-normalization v0.1.19 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling blocking v1.0.2 [INFO] [stderr] Compiling async-executor v1.4.1 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling socket2 v0.4.2 [INFO] [stderr] Compiling hostname v0.3.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling stringprep v0.1.2 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling crypto-mac v0.11.1 [INFO] [stderr] Compiling resolv-conf v0.7.0 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling uuid v0.8.2 [INFO] [stderr] Compiling crossbeam-deque v0.8.1 [INFO] [stderr] Compiling sha-1 v0.9.8 [INFO] [stderr] Compiling sha2 v0.9.8 [INFO] [stderr] Compiling md-5 v0.9.1 [INFO] [stderr] Compiling hmac v0.11.0 [INFO] [stderr] Compiling pbkdf2 v0.8.0 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling crossbeam v0.8.1 [INFO] [stderr] Compiling url v2.2.2 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling webpki v0.21.4 [INFO] [stderr] Compiling sct v0.6.1 [INFO] [stderr] Compiling webpki-roots v0.21.1 [INFO] [stderr] Compiling darling_core v0.13.0 [INFO] [stderr] Compiling ctor v0.1.21 [INFO] [stderr] Compiling tokio-macros v1.4.1 [INFO] [stderr] Compiling thiserror-impl v1.0.29 [INFO] [stderr] Compiling enum-as-inner v0.3.3 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Compiling tracing-attributes v0.1.18 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.4 [INFO] [stderr] Compiling typed-builder v0.9.1 [INFO] [stderr] Compiling darling_macro v0.13.0 [INFO] [stderr] Compiling mio v0.7.13 [INFO] [stderr] Compiling polling v2.1.0 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Compiling rustls v0.19.1 [INFO] [stderr] Compiling tracing-log v0.1.2 [INFO] [stderr] Compiling os_info v3.0.7 [INFO] [stderr] Compiling darling v0.13.0 [INFO] [stderr] Compiling async-io v1.6.0 [INFO] [stderr] Compiling serde_with_macros v1.5.0 [INFO] [stderr] Compiling thiserror v1.0.29 [INFO] [stderr] Compiling tracing v0.1.29 [INFO] [stderr] Compiling async-global-executor v2.0.2 [INFO] [stderr] Compiling clap v3.0.0-beta.4 [INFO] [stderr] Compiling async-std v1.10.0 [INFO] [stderr] Compiling futures-executor v0.3.17 [INFO] [stderr] Compiling trust-dns-proto v0.20.3 [INFO] [stderr] Compiling tokio-rustls v0.22.0 [INFO] [stderr] Compiling tokio-util v0.6.8 [INFO] [stderr] Compiling trust-dns-resolver v0.20.3 [INFO] [stderr] Compiling async-std-resolver v0.20.3 [INFO] [stderr] Compiling tracing-serde v0.1.2 [INFO] [stderr] Compiling serde_bytes v0.11.5 [INFO] [stderr] Compiling serde_with v1.10.0 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Compiling tracing-subscriber v0.2.25 [INFO] [stderr] Compiling bson v2.0.0 [INFO] [stderr] Compiling tracing-appender v0.1.2 [INFO] [stderr] Compiling mongodb v2.0.0 [INFO] [stderr] Compiling mongo_sync v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | #![feature(backtrace)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [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 `mongo_sync` 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" "27219ae2bae25ecd02e7b2c919ee39fe4e506babd4e6780eba12be8caf8ac11d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27219ae2bae25ecd02e7b2c919ee39fe4e506babd4e6780eba12be8caf8ac11d", kill_on_drop: false }` [INFO] [stdout] 27219ae2bae25ecd02e7b2c919ee39fe4e506babd4e6780eba12be8caf8ac11d