[INFO] fetching crate derive_flat_debug 0.1.0...
[INFO] checking derive_flat_debug-0.1.0 against try#804fff1ae95da9d03bd44eee27f258020a575dab for pr-146013
[INFO] extracting crate derive_flat_debug 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate derive_flat_debug 0.1.0
[INFO] finished tweaking crates.io crate derive_flat_debug 0.1.0
[INFO] tweaked toml for crates.io crate derive_flat_debug 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate derive_flat_debug 0.1.0 on toolchain 804fff1ae95da9d03bd44eee27f258020a575dab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate derive_flat_debug 0.1.0 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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b382ce4fd10e614e2a0dceaf80554c8d532409d5da2573609f98bfcf19c2cdc
[INFO] running `Command { std: "docker" "start" "-a" "2b382ce4fd10e614e2a0dceaf80554c8d532409d5da2573609f98bfcf19c2cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b382ce4fd10e614e2a0dceaf80554c8d532409d5da2573609f98bfcf19c2cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b382ce4fd10e614e2a0dceaf80554c8d532409d5da2573609f98bfcf19c2cdc", kill_on_drop: false }`
[INFO] [stdout] 2b382ce4fd10e614e2a0dceaf80554c8d532409d5da2573609f98bfcf19c2cdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fa2e51e040048247067886b7137575a5b56d2bf546e4e7e1e9426ecdfbdc286
[INFO] running `Command { std: "docker" "start" "-a" "6fa2e51e040048247067886b7137575a5b56d2bf546e4e7e1e9426ecdfbdc286", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.101
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/syn-8fa62c690c884ae4.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] running `Command { std: "docker" "inspect" "6fa2e51e040048247067886b7137575a5b56d2bf546e4e7e1e9426ecdfbdc286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fa2e51e040048247067886b7137575a5b56d2bf546e4e7e1e9426ecdfbdc286", kill_on_drop: false }`
[INFO] [stdout] 6fa2e51e040048247067886b7137575a5b56d2bf546e4e7e1e9426ecdfbdc286