[INFO] fetching crate math_thingies 0.1.0...
[INFO] checking math_thingies-0.1.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate math_thingies 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate math_thingies 0.1.0 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 math_thingies 0.1.0
[INFO] finished tweaking crates.io crate math_thingies 0.1.0
[INFO] tweaked toml for crates.io crate math_thingies 0.1.0 written to /workspace/builds/worker-0-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 9 packages to latest compatible versions
[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-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] 081a92ff0c39bd8c1a86978ab52c90691078f452a9b4aafa7fa052d7a11ad75c
[INFO] running `Command { std: "docker" "start" "-a" "081a92ff0c39bd8c1a86978ab52c90691078f452a9b4aafa7fa052d7a11ad75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "081a92ff0c39bd8c1a86978ab52c90691078f452a9b4aafa7fa052d7a11ad75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081a92ff0c39bd8c1a86978ab52c90691078f452a9b4aafa7fa052d7a11ad75c", kill_on_drop: false }`
[INFO] [stdout] 081a92ff0c39bd8c1a86978ab52c90691078f452a9b4aafa7fa052d7a11ad75c
[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] 1505bbcc7478dfac297f9c1c801ac2d1704cca46788d222e4b98b6208d963d37
[INFO] running `Command { std: "docker" "start" "-a" "1505bbcc7478dfac297f9c1c801ac2d1704cca46788d222e4b98b6208d963d37", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking math_thingies v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Div` and `Mul`
[INFO] [stdout]  --> src/math.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 |         ops::{Add, AddAssign, Sub, SubAssign, Div, Mul, Range},
[INFO] [stdout]   |                                               ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Div` and `Mul`
[INFO] [stdout]  --> src/math.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 |         ops::{Add, AddAssign, Sub, SubAssign, Div, Mul, Range},
[INFO] [stdout]   |                                               ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(associated_type_bounds)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `end`, `new`, and `new_unchecked` are never used
[INFO] [stdout]   --> src/math.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<V: CopyPartOrdNum + NumCast + ToPrimitive> InUnsignedRange<V> {
[INFO] [stdout]    | ------------------------------------------------------------------ associated items in this implementation
[INFO] [stdout] 59 |     const START: u8 = 0;
[INFO] [stdout] 60 |     fn end(&self) -> V { self.end }
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 61 |     fn new(value: V, end: V) -> Result<Self, ()> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn new_unchecked(value: V, end: V) -> Self { Self::new(value, end).unwrap() }
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `end`, `new`, and `new_unchecked` are never used
[INFO] [stdout]   --> src/math.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<V: CopyPartOrdNum + NumCast + ToPrimitive> InUnsignedRange<V> {
[INFO] [stdout]    | ------------------------------------------------------------------ associated items in this implementation
[INFO] [stdout] 59 |     const START: u8 = 0;
[INFO] [stdout] 60 |     fn end(&self) -> V { self.end }
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 61 |     fn new(value: V, end: V) -> Result<Self, ()> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn new_unchecked(value: V, end: V) -> Self { Self::new(value, end).unwrap() }
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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 3.54s
[INFO] running `Command { std: "docker" "inspect" "1505bbcc7478dfac297f9c1c801ac2d1704cca46788d222e4b98b6208d963d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1505bbcc7478dfac297f9c1c801ac2d1704cca46788d222e4b98b6208d963d37", kill_on_drop: false }`
[INFO] [stdout] 1505bbcc7478dfac297f9c1c801ac2d1704cca46788d222e4b98b6208d963d37