[INFO] fetching crate mathdefs 0.1.0...
[INFO] checking mathdefs-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate mathdefs 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate mathdefs 0.1.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mathdefs 0.1.0
[INFO] finished tweaking crates.io crate mathdefs 0.1.0
[INFO] tweaked toml for crates.io crate mathdefs 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d7e6b882a840251765c984756f4c767511b8ba5731394d5bd1a6eb6923f44d9
[INFO] running `Command { std: "docker" "start" "-a" "2d7e6b882a840251765c984756f4c767511b8ba5731394d5bd1a6eb6923f44d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d7e6b882a840251765c984756f4c767511b8ba5731394d5bd1a6eb6923f44d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7e6b882a840251765c984756f4c767511b8ba5731394d5bd1a6eb6923f44d9", kill_on_drop: false }`
[INFO] [stdout] 2d7e6b882a840251765c984756f4c767511b8ba5731394d5bd1a6eb6923f44d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44f38c5ede39d3f8d39ce3377a4fce25d81cad718054608b817f372c733d15f3
[INFO] running `Command { std: "docker" "start" "-a" "44f38c5ede39d3f8d39ce3377a4fce25d81cad718054608b817f372c733d15f3", kill_on_drop: false }`
[INFO] [stderr]     Checking mathdefs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Evaluatable` is never used
[INFO] [stdout]  --> src/traits/evaluatable.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait Evaluatable {
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> src/definitions.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Number<Value> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Addition` is never constructed
[INFO] [stdout]  --> src/definitions.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Addition<Augend, Addend> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Subtraction` is never constructed
[INFO] [stdout]  --> src/definitions.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Subtraction<Minuend, Subtrahend> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Multiplication` is never constructed
[INFO] [stdout]   --> src/definitions.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Multiplication<Multiplier, Multiplicand> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Division` is never constructed
[INFO] [stdout]   --> src/definitions.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Division<Dividend, Divisor> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sine` is never constructed
[INFO] [stdout]   --> src/definitions.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Sine<Angle> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cosine` is never constructed
[INFO] [stdout]   --> src/definitions.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Cosine<Angle> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tangent` is never constructed
[INFO] [stdout]   --> src/definitions.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Tangent<Angle> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cotangent` is never constructed
[INFO] [stdout]   --> src/definitions.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Cotangent<Angle> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Exponentiation` is never constructed
[INFO] [stdout]   --> src/definitions.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct Exponentiation<Base, Exponent> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logarithm` is never constructed
[INFO] [stdout]   --> src/definitions.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Logarithm<Base, Antilogarithm> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Subtraction` is never constructed
[INFO] [stdout]  --> src/definitions.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Subtraction<Minuend, Subtrahend> {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Multiplication` is never constructed
[INFO] [stdout]   --> src/definitions.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Multiplication<Multiplier, Multiplicand> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Division` is never constructed
[INFO] [stdout]   --> src/definitions.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Division<Dividend, Divisor> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sine` is never constructed
[INFO] [stdout]   --> src/definitions.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Sine<Angle> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cosine` is never constructed
[INFO] [stdout]   --> src/definitions.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Cosine<Angle> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tangent` is never constructed
[INFO] [stdout]   --> src/definitions.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Tangent<Angle> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cotangent` is never constructed
[INFO] [stdout]   --> src/definitions.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Cotangent<Angle> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Exponentiation` is never constructed
[INFO] [stdout]   --> src/definitions.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct Exponentiation<Base, Exponent> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logarithm` is never constructed
[INFO] [stdout]   --> src/definitions.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Logarithm<Base, Antilogarithm> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "44f38c5ede39d3f8d39ce3377a4fce25d81cad718054608b817f372c733d15f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f38c5ede39d3f8d39ce3377a4fce25d81cad718054608b817f372c733d15f3", kill_on_drop: false }`
[INFO] [stdout] 44f38c5ede39d3f8d39ce3377a4fce25d81cad718054608b817f372c733d15f3