[INFO] fetching crate mash 1.0.1...
[INFO] checking mash-1.0.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate mash 1.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate mash 1.0.1 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 mash 1.0.1
[INFO] finished tweaking crates.io crate mash 1.0.1
[INFO] tweaked toml for crates.io crate mash 1.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate mash 1.0.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07a84b1e02e2b52621db4324495ee6f4b69228f54db69984a8c0f46bc5e6bb69
[INFO] running `Command { std: "docker" "start" "-a" "07a84b1e02e2b52621db4324495ee6f4b69228f54db69984a8c0f46bc5e6bb69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07a84b1e02e2b52621db4324495ee6f4b69228f54db69984a8c0f46bc5e6bb69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a84b1e02e2b52621db4324495ee6f4b69228f54db69984a8c0f46bc5e6bb69", kill_on_drop: false }`
[INFO] [stdout] 07a84b1e02e2b52621db4324495ee6f4b69228f54db69984a8c0f46bc5e6bb69
[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 -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] 4463a305c16aea0a7293f188b919cf134734fb3f9b60fea7045c6fca8191f5d9
[INFO] running `Command { std: "docker" "start" "-a" "4463a305c16aea0a7293f188b919cf134734fb3f9b60fea7045c6fca8191f5d9", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking tobj v2.0.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking mash v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `vertex_count` and `index_count` are never read
[INFO] [stdout]   --> src/model.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |         struct TriangularMesh {
[INFO] [stdout]    |                -------------- fields in this struct
[INFO] [stdout] 57 |             pub vertex_count: usize,
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout] 58 |             pub index_count: usize,
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TriangularMesh` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `vertex_count` and `index_count` are never read
[INFO] [stdout]   --> src/model.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |         struct TriangularMesh {
[INFO] [stdout]    |                -------------- fields in this struct
[INFO] [stdout] 57 |             pub vertex_count: usize,
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout] 58 |             pub index_count: usize,
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TriangularMesh` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "4463a305c16aea0a7293f188b919cf134734fb3f9b60fea7045c6fca8191f5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4463a305c16aea0a7293f188b919cf134734fb3f9b60fea7045c6fca8191f5d9", kill_on_drop: false }`
[INFO] [stdout] 4463a305c16aea0a7293f188b919cf134734fb3f9b60fea7045c6fca8191f5d9