[INFO] fetching crate ezcgmath 0.0.4...
[INFO] checking ezcgmath-0.0.4 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate ezcgmath 0.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ezcgmath 0.0.4 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ezcgmath 0.0.4
[INFO] finished tweaking crates.io crate ezcgmath 0.0.4
[INFO] tweaked toml for crates.io crate ezcgmath 0.0.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daf226db7e8698f52020e255f873aa012f6749f999a90049a090418658a485a5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "daf226db7e8698f52020e255f873aa012f6749f999a90049a090418658a485a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daf226db7e8698f52020e255f873aa012f6749f999a90049a090418658a485a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf226db7e8698f52020e255f873aa012f6749f999a90049a090418658a485a5", kill_on_drop: false }`
[INFO] [stdout] daf226db7e8698f52020e255f873aa012f6749f999a90049a090418658a485a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 910f336d75a7490153da211c50ec8b06dd6d9c93804bfbd6258644e6d2350a78
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "910f336d75a7490153da211c50ec8b06dd6d9c93804bfbd6258644e6d2350a78", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ezcgmath v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]   --> tests/vector.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 |         assert_ulps_eq!(A.length(), (6.0 as f32).sqrt());
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]    = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]   --> /opt/rustwide/workdir/src/vector.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn length(&mut self) -> Scalar {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]   --> tests/vector.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  |     const A: Vector2 = Vector2::new(2.0, 4.0);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]   --> tests/vector.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |         assert_ulps_eq!(B.length(), (15.0 as f32).sqrt());
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]    = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]   --> /opt/rustwide/workdir/src/vector.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn length(&mut self) -> Scalar {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]   --> tests/vector.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |     const B: Vector2 = Vector2::new(5.0, 10.0);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]    --> tests/vector.rs:147:25
[INFO] [stdout]     |
[INFO] [stdout] 147 |         assert_ulps_eq!(A.length(), a_len);
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]     = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]    --> /opt/rustwide/workdir/src/vector.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn length(&mut self) -> Scalar {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]    --> tests/vector.rs:80:5
[INFO] [stdout]     |
[INFO] [stdout] 80  |     const A: Vector3 = Vector3::new(2.0, 4.0, 6.0);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]    --> tests/vector.rs:148:25
[INFO] [stdout]     |
[INFO] [stdout] 148 |         assert_ulps_eq!(B.length(), b_len);
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]     = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]    --> /opt/rustwide/workdir/src/vector.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn length(&mut self) -> Scalar {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]    --> tests/vector.rs:81:5
[INFO] [stdout]     |
[INFO] [stdout] 81  |     const B: Vector3 = Vector3::new(5.0, 10.0, 15.0);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "910f336d75a7490153da211c50ec8b06dd6d9c93804bfbd6258644e6d2350a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "910f336d75a7490153da211c50ec8b06dd6d9c93804bfbd6258644e6d2350a78", kill_on_drop: false }`
[INFO] [stdout] 910f336d75a7490153da211c50ec8b06dd6d9c93804bfbd6258644e6d2350a78