[INFO] fetching crate saloc-lib 0.0.0...
[INFO] testing saloc-lib-0.0.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate saloc-lib 0.0.0 into /workspace/builds/worker-64/source
[INFO] validating manifest of crates.io crate saloc-lib 0.0.0 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 saloc-lib 0.0.0
[INFO] finished tweaking crates.io crate saloc-lib 0.0.0
[INFO] tweaked toml for crates.io crate saloc-lib 0.0.0 written to /workspace/builds/worker-64/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] 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 lalrpop v0.19.7
[INFO] [stderr]   Downloaded ariadne v0.1.5
[INFO] [stderr]   Downloaded aquamarine v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] c007b597a5b29b335ad5eddd8927d16124614227efc1eb221032404e86789492
[INFO] running `Command { std: "docker" "start" "-a" "c007b597a5b29b335ad5eddd8927d16124614227efc1eb221032404e86789492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c007b597a5b29b335ad5eddd8927d16124614227efc1eb221032404e86789492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c007b597a5b29b335ad5eddd8927d16124614227efc1eb221032404e86789492", kill_on_drop: false }`
[INFO] [stdout] c007b597a5b29b335ad5eddd8927d16124614227efc1eb221032404e86789492
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] e20b2e634b3dd0a65344b24d0c6dc7ca8b0582b308958658da04a00c9193a939
[INFO] running `Command { std: "docker" "start" "-a" "e20b2e634b3dd0a65344b24d0c6dc7ca8b0582b308958658da04a00c9193a939", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling owo-colors v1.3.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling tracing-core v0.1.25
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thread_local v1.1.4
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[INFO] [stderr]    Compiling itertools v0.10.3
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[INFO] [stderr]    Compiling atty v0.2.14
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[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling ariadne v0.1.5
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling tracing-serde v0.1.3
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling clap v3.1.8
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling string_cache v0.8.4
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling lalrpop-util v0.19.7
[INFO] [stderr]    Compiling lalrpop v0.19.7
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling aquamarine v0.1.11
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling typestate-proc-macro v0.8.0
[INFO] [stderr]    Compiling tracing v0.1.33
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling tracing-error v0.1.2
[INFO] [stderr]    Compiling saloc-lib v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling color-spantrace v0.1.6
[INFO] [stderr]    Compiling typestate v0.8.0
[INFO] [stderr]    Compiling color-eyre v0.5.11
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(format_args_capture, crate_visibility_modifier, test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `format_args_capture` has been stable since 1.58.0 and no longer requires an attribute to enable
[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 `saloc-lib` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e20b2e634b3dd0a65344b24d0c6dc7ca8b0582b308958658da04a00c9193a939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20b2e634b3dd0a65344b24d0c6dc7ca8b0582b308958658da04a00c9193a939", kill_on_drop: false }`
[INFO] [stdout] e20b2e634b3dd0a65344b24d0c6dc7ca8b0582b308958658da04a00c9193a939