[INFO] fetching crate esp-backtrace 0.16.0...
[INFO] checking esp-backtrace-0.16.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate esp-backtrace 0.16.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate esp-backtrace 0.16.0
[INFO] finished tweaking crates.io crate esp-backtrace 0.16.0
[INFO] tweaked toml for crates.io crate esp-backtrace 0.16.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate esp-backtrace 0.16.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate esp-backtrace 0.16.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 626f8612b0e4e47b7033404c9a784a0152dc33e7c5365e5c933d64822efe93f8
[INFO] running `Command { std: "docker" "start" "-a" "626f8612b0e4e47b7033404c9a784a0152dc33e7c5365e5c933d64822efe93f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "626f8612b0e4e47b7033404c9a784a0152dc33e7c5365e5c933d64822efe93f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "626f8612b0e4e47b7033404c9a784a0152dc33e7c5365e5c933d64822efe93f8", kill_on_drop: false }`
[INFO] [stdout] 626f8612b0e4e47b7033404c9a784a0152dc33e7c5365e5c933d64822efe93f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c832479f5186a38e66ed10405eb86c8a82c01d4f1403ad9baee2ecdd3eb9d00
[INFO] running `Command { std: "docker" "start" "-a" "7c832479f5186a38e66ed10405eb86c8a82c01d4f1403ad9baee2ecdd3eb9d00", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking esp-config v0.4.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling strum_macros v0.27.1
[INFO] [stderr]    Compiling esp-build v0.3.0
[INFO] [stderr]    Compiling strum v0.27.1
[INFO] [stderr]    Compiling basic-toml v0.1.10
[INFO] [stderr]    Compiling esp-metadata v0.7.0
[INFO] [stderr]    Compiling esp-backtrace v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] ERROR: expected exactly one enabled feature from feature group:
[INFO] [stderr]   ["defmt", "println"]
[INFO] [stderr]     
[INFO] [stderr] 
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]  --> build.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     assert_unique_used_features!("defmt", "println");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: Build failed
[INFO] [stdout]   = note: this error originates in the macro `assert_unique_used_features` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `esp-backtrace` (build script) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7c832479f5186a38e66ed10405eb86c8a82c01d4f1403ad9baee2ecdd3eb9d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c832479f5186a38e66ed10405eb86c8a82c01d4f1403ad9baee2ecdd3eb9d00", kill_on_drop: false }`
[INFO] [stdout] 7c832479f5186a38e66ed10405eb86c8a82c01d4f1403ad9baee2ecdd3eb9d00