[INFO] fetching crate tracing-fmt 0.1.1...
[INFO] checking tracing-fmt-0.1.1 against beta for pr-78714
[INFO] extracting crate tracing-fmt 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tracing-fmt 0.1.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-fmt 0.1.1
[INFO] finished tweaking crates.io crate tracing-fmt 0.1.1
[INFO] tweaked toml for crates.io crate tracing-fmt 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aeb66cef9de8fd8ad07a0ff7e03f7e3e401df2a8dafb1dc7c068e4d3007d1a30
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aeb66cef9de8fd8ad07a0ff7e03f7e3e401df2a8dafb1dc7c068e4d3007d1a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aeb66cef9de8fd8ad07a0ff7e03f7e3e401df2a8dafb1dc7c068e4d3007d1a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb66cef9de8fd8ad07a0ff7e03f7e3e401df2a8dafb1dc7c068e4d3007d1a30", kill_on_drop: false }`
[INFO] [stdout] aeb66cef9de8fd8ad07a0ff7e03f7e3e401df2a8dafb1dc7c068e4d3007d1a30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8801c458939ec931ebd3a144344a4649f899f834cb859ea5454e8c681416ff47
[INFO] running `Command { std: "docker" "start" "-a" "8801c458939ec931ebd3a144344a4649f899f834cb859ea5454e8c681416ff47", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]     Checking tracing-fmt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `tracing_subscriber::Filter`: renamed to `EnvFilter`
[INFO] [stdout]   --> src/lib.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub use tracing_subscriber::Filter as EnvFilter;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stdout] error: use of deprecated type alias `tracing_subscriber::Filter`: renamed to `EnvFilter`
[INFO] [stdout]   --> src/lib.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub use tracing_subscriber::Filter as EnvFilter;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracing-fmt`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8801c458939ec931ebd3a144344a4649f899f834cb859ea5454e8c681416ff47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8801c458939ec931ebd3a144344a4649f899f834cb859ea5454e8c681416ff47", kill_on_drop: false }`
[INFO] [stdout] 8801c458939ec931ebd3a144344a4649f899f834cb859ea5454e8c681416ff47