[INFO] fetching crate backtrace-ext 0.2.1...
[INFO] checking backtrace-ext-0.2.1 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2
[INFO] extracting crate backtrace-ext 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate backtrace-ext 0.2.1 on toolchain ccf408f4326a858c00dd845a64a86b16f360a801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backtrace-ext 0.2.1
[INFO] finished tweaking crates.io crate backtrace-ext 0.2.1
[INFO] tweaked toml for crates.io crate backtrace-ext 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate backtrace-ext 0.2.1 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" "+ccf408f4326a858c00dd845a64a86b16f360a801" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c06ba9297d532efc46264994410c606698e850d507ee38b09b868a9f9a016449
[INFO] running `Command { std: "docker" "start" "-a" "c06ba9297d532efc46264994410c606698e850d507ee38b09b868a9f9a016449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c06ba9297d532efc46264994410c606698e850d507ee38b09b868a9f9a016449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c06ba9297d532efc46264994410c606698e850d507ee38b09b868a9f9a016449", kill_on_drop: false }`
[INFO] [stdout] c06ba9297d532efc46264994410c606698e850d507ee38b09b868a9f9a016449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11e94816b21facf77530f0cddf71e453d50b67592f799fcbfe8d06ae821d95b8
[INFO] running `Command { std: "docker" "start" "-a" "11e94816b21facf77530f0cddf71e453d50b67592f799fcbfe8d06ae821d95b8", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "11e94816b21facf77530f0cddf71e453d50b67592f799fcbfe8d06ae821d95b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e94816b21facf77530f0cddf71e453d50b67592f799fcbfe8d06ae821d95b8", kill_on_drop: false }`
[INFO] [stdout] 11e94816b21facf77530f0cddf71e453d50b67592f799fcbfe8d06ae821d95b8