[INFO] fetching crate for_any 0.0.1-beta.0...
[INFO] testing for_any-0.0.1-beta.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate for_any 0.0.1-beta.0 into /workspace/builds/worker-102/source
[INFO] validating manifest of crates.io crate for_any 0.0.1-beta.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 for_any 0.0.1-beta.0
[INFO] finished tweaking crates.io crate for_any 0.0.1-beta.0
[INFO] tweaked toml for crates.io crate for_any 0.0.1-beta.0 written to /workspace/builds/worker-102/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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] 8eee9a213fd6f9e3bbd872025045eff5d3a3913e45fec2d2eda38f491d1cc1c9
[INFO] running `Command { std: "docker" "start" "-a" "8eee9a213fd6f9e3bbd872025045eff5d3a3913e45fec2d2eda38f491d1cc1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eee9a213fd6f9e3bbd872025045eff5d3a3913e45fec2d2eda38f491d1cc1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eee9a213fd6f9e3bbd872025045eff5d3a3913e45fec2d2eda38f491d1cc1c9", kill_on_drop: false }`
[INFO] [stdout] 8eee9a213fd6f9e3bbd872025045eff5d3a3913e45fec2d2eda38f491d1cc1c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-102/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] 30e507beff04ec9d2864716372d97cc7073b749b706a6f4e76929f9a50a2e0f5
[INFO] running `Command { std: "docker" "start" "-a" "30e507beff04ec9d2864716372d97cc7073b749b706a6f4e76929f9a50a2e0f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling for_any v0.0.1-beta.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(result_into_ok_or_err, result_flattening)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(result_into_ok_or_err, result_flattening)]
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(exact_size_is_empty)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `for_any` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "30e507beff04ec9d2864716372d97cc7073b749b706a6f4e76929f9a50a2e0f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e507beff04ec9d2864716372d97cc7073b749b706a6f4e76929f9a50a2e0f5", kill_on_drop: false }`
[INFO] [stdout] 30e507beff04ec9d2864716372d97cc7073b749b706a6f4e76929f9a50a2e0f5