[INFO] fetching crate trylog 0.3.1...
[INFO] testing trylog-0.3.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate trylog 0.3.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate trylog 0.3.1
[INFO] finished tweaking crates.io crate trylog 0.3.1
[INFO] tweaked toml for crates.io crate trylog 0.3.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trylog 0.3.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trylog 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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 simple_logger v4.0.0
[INFO] [stderr]   Downloaded time-macros v0.2.6
[INFO] [stderr]   Downloaded time-core v0.1.0
[INFO] [stderr]   Downloaded time v0.3.17
[INFO] [stderr]   Downloaded libc v0.2.138
[INFO] [stderr]   Downloaded serde v1.0.149
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cac091264062a4dea45316e6bc532a76ddc782445950e8450c88e383f2bf00b8
[INFO] running `Command { std: "docker" "start" "-a" "cac091264062a4dea45316e6bc532a76ddc782445950e8450c88e383f2bf00b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cac091264062a4dea45316e6bc532a76ddc782445950e8450c88e383f2bf00b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac091264062a4dea45316e6bc532a76ddc782445950e8450c88e383f2bf00b8", kill_on_drop: false }`
[INFO] [stdout] cac091264062a4dea45316e6bc532a76ddc782445950e8450c88e383f2bf00b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b911c6a08eaeb44e2bf12115033407de821051dc699f5584cacc04bc1c8e950
[INFO] running `Command { std: "docker" "start" "-a" "3b911c6a08eaeb44e2bf12115033407de821051dc699f5584cacc04bc1c8e950", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling trylog v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(decl_macro)]
[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:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(try_trait_v2)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trylog` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3b911c6a08eaeb44e2bf12115033407de821051dc699f5584cacc04bc1c8e950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b911c6a08eaeb44e2bf12115033407de821051dc699f5584cacc04bc1c8e950", kill_on_drop: false }`
[INFO] [stdout] 3b911c6a08eaeb44e2bf12115033407de821051dc699f5584cacc04bc1c8e950
