[INFO] fetching crate diagnostic 0.6.4...
[INFO] checking diagnostic-0.6.4 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate diagnostic 0.6.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate diagnostic 0.6.4 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diagnostic 0.6.4
[INFO] finished tweaking crates.io crate diagnostic 0.6.4
[INFO] tweaked toml for crates.io crate diagnostic 0.6.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding idna v0.5.0 (available: v1.0.2)
[INFO] [stderr]       Adding unicode-width v0.1.14 (available: v0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 789fb7806ea04e7fc0b4db4561a8540cfaa20847aca6de849ca25f3c2b3d366f
[INFO] running `Command { std: "docker" "start" "-a" "789fb7806ea04e7fc0b4db4561a8540cfaa20847aca6de849ca25f3c2b3d366f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "789fb7806ea04e7fc0b4db4561a8540cfaa20847aca6de849ca25f3c2b3d366f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "789fb7806ea04e7fc0b4db4561a8540cfaa20847aca6de849ca25f3c2b3d366f", kill_on_drop: false }`
[INFO] [stdout] 789fb7806ea04e7fc0b4db4561a8540cfaa20847aca6de849ca25f3c2b3d366f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail_expr_drop_order" "-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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fc7e8b6a1d8a5be362fe88048ab678f89da97390494ab42cfe27b21ec5ad9ab
[INFO] running `Command { std: "docker" "start" "-a" "8fc7e8b6a1d8a5be362fe88048ab678f89da97390494ab42cfe27b21ec5ad9ab", kill_on_drop: false }`
[INFO] [stderr]     Checking source-cache v0.2.3
[INFO] [stderr]     Checking diagnostic v0.6.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `concolor`
[INFO] [stdout]   --> src/draw.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[cfg(not(feature = "concolor"))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `serde`
[INFO] [stdout]    = help: consider adding `concolor` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `concolor`
[INFO] [stdout]   --> src/draw.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if cfg!(feature = "concolor") {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `serde`
[INFO] [stdout]    = help: consider adding `concolor` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `concolor`
[INFO] [stdout]   --> src/draw.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |         if cfg!(feature = "concolor") {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `serde`
[INFO] [stdout]    = help: consider adding `concolor` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `concolor`
[INFO] [stdout]   --> src/draw.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[cfg(not(feature = "concolor"))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `serde`
[INFO] [stdout]    = help: consider adding `concolor` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `concolor`
[INFO] [stdout]   --> src/draw.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if cfg!(feature = "concolor") {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `serde`
[INFO] [stdout]    = help: consider adding `concolor` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `concolor`
[INFO] [stdout]   --> src/draw.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |         if cfg!(feature = "concolor") {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `serde`
[INFO] [stdout]    = help: consider adding `concolor` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "8fc7e8b6a1d8a5be362fe88048ab678f89da97390494ab42cfe27b21ec5ad9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc7e8b6a1d8a5be362fe88048ab678f89da97390494ab42cfe27b21ec5ad9ab", kill_on_drop: false }`
[INFO] [stdout] 8fc7e8b6a1d8a5be362fe88048ab678f89da97390494ab42cfe27b21ec5ad9ab