[INFO] updating cached repository khernyo/qc-playground [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/khernyo/qc-playground [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/khernyo/qc-playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/khernyo/qc-playground"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/khernyo/qc-playground'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/khernyo/qc-playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/khernyo/qc-playground"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/khernyo/qc-playground'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3877fdb35e4285a6bc1a85534f3b0eb1fecc2dd7 [INFO] sha for GitHub repo khernyo/qc-playground: 3877fdb35e4285a6bc1a85534f3b0eb1fecc2dd7 [INFO] validating manifest of khernyo/qc-playground on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of khernyo/qc-playground on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing khernyo/qc-playground [INFO] finished frobbing khernyo/qc-playground [INFO] frobbed toml for khernyo/qc-playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/khernyo/qc-playground/Cargo.toml [INFO] started frobbing khernyo/qc-playground [INFO] finished frobbing khernyo/qc-playground [INFO] frobbed toml for khernyo/qc-playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/khernyo/qc-playground/Cargo.toml [INFO] crate khernyo/qc-playground already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing khernyo/qc-playground against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/khernyo/qc-playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 081df0dee831a0d09142ccb96a2729cad436ee924863f2bdf5caabb3c6b7ce58 [INFO] running `"docker" "start" "-a" "081df0dee831a0d09142ccb96a2729cad436ee924863f2bdf5caabb3c6b7ce58"` [INFO] [stderr] Compiling matrixmultiply v0.1.15 [INFO] [stderr] Compiling rawpointer v0.1.0 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling generic-array v0.8.3 [INFO] [stderr] Compiling alga v0.5.4 [INFO] [stderr] Compiling num-bigint v0.1.44 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling num v0.1.42 [INFO] [stderr] Compiling nalgebra v0.14.4 [INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.14.4/src/core/cg.rs:292:44 [INFO] [stderr] | [INFO] [stderr] 292 | self[(j, i)] += shift[j] * self[(D::dim() - 1, i)]; [INFO] [stderr] | ---------------------------^^^^------------------- [INFO] [stderr] | | | [INFO] [stderr] | | immutable borrow occurs here [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | mutable borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Compiling qc-playground v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `approx::ApproxEq` [INFO] [stderr] --> src/lib.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use approx::ApproxEq; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:217:32 [INFO] [stderr] | [INFO] [stderr] 217 | fn measure(self, rng: &mut Rng) -> Vec { [INFO] [stderr] | ^^^ help: use `dyn`: `dyn Rng` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:231:48 [INFO] [stderr] | [INFO] [stderr] 231 | fn measure_one(self, index: u32, rng: &mut Rng) -> (bool, QState) { [INFO] [stderr] | ^^^ help: use `dyn`: `dyn Rng` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from_qubits` [INFO] [stderr] --> src/lib.rs:112:5 [INFO] [stderr] | [INFO] [stderr] 112 | fn from_qubits(qubits: &[Qubit]) -> QStateExpr { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `eval` [INFO] [stderr] --> src/lib.rs:125:5 [INFO] [stderr] | [INFO] [stderr] 125 | fn eval(self) -> QState { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `QState` [INFO] [stderr] --> src/lib.rs:176:1 [INFO] [stderr] | [INFO] [stderr] 176 | struct QState { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from` [INFO] [stderr] --> src/lib.rs:187:5 [INFO] [stderr] | [INFO] [stderr] 187 | fn from(expr: QStateExpr) -> QState { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `validate` [INFO] [stderr] --> src/lib.rs:193:5 [INFO] [stderr] | [INFO] [stderr] 193 | fn validate(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `qubit_count` [INFO] [stderr] --> src/lib.rs:201:5 [INFO] [stderr] | [INFO] [stderr] 201 | fn qubit_count(&self) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `apply` [INFO] [stderr] --> src/lib.rs:205:5 [INFO] [stderr] | [INFO] [stderr] 205 | fn apply(self, gate: &QGate) -> QState { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `measure` [INFO] [stderr] --> src/lib.rs:217:5 [INFO] [stderr] | [INFO] [stderr] 217 | fn measure(self, rng: &mut Rng) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `measure_one` [INFO] [stderr] --> src/lib.rs:231:5 [INFO] [stderr] | [INFO] [stderr] 231 | fn measure_one(self, index: u32, rng: &mut Rng) -> (bool, QState) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `n_to_bitvec` [INFO] [stderr] --> src/lib.rs:236:1 [INFO] [stderr] | [INFO] [stderr] 236 | fn n_to_bitvec(n: usize, bits: u32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `qubit_count` [INFO] [stderr] --> src/lib.rs:247:1 [INFO] [stderr] | [INFO] [stderr] 247 | fn qubit_count(state: &DVector) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `QGate` [INFO] [stderr] --> src/lib.rs:252:1 [INFO] [stderr] | [INFO] [stderr] 252 | struct QGate(DMatrix); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `identity` [INFO] [stderr] --> src/lib.rs:261:5 [INFO] [stderr] | [INFO] [stderr] 261 | fn identity() -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `hadamard` [INFO] [stderr] --> src/lib.rs:271:5 [INFO] [stderr] | [INFO] [stderr] 271 | fn hadamard() -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `pauli_x` [INFO] [stderr] --> src/lib.rs:279:5 [INFO] [stderr] | [INFO] [stderr] 279 | fn pauli_x() -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `pauli_y` [INFO] [stderr] --> src/lib.rs:286:5 [INFO] [stderr] | [INFO] [stderr] 286 | fn pauli_y() -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `pauli_z` [INFO] [stderr] --> src/lib.rs:293:5 [INFO] [stderr] | [INFO] [stderr] 293 | fn pauli_z() -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `phase_shift` [INFO] [stderr] --> src/lib.rs:300:5 [INFO] [stderr] | [INFO] [stderr] 300 | fn phase_shift(phi: f64) -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `swap` [INFO] [stderr] --> src/lib.rs:307:5 [INFO] [stderr] | [INFO] [stderr] 307 | fn swap() -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `cnot` [INFO] [stderr] --> src/lib.rs:316:5 [INFO] [stderr] | [INFO] [stderr] 316 | fn cnot() -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `par` [INFO] [stderr] --> src/lib.rs:326:5 [INFO] [stderr] | [INFO] [stderr] 326 | fn par(&self, rhs: &QGate) -> QGate { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 38.94s [INFO] running `"docker" "inspect" "081df0dee831a0d09142ccb96a2729cad436ee924863f2bdf5caabb3c6b7ce58"` [INFO] running `"docker" "rm" "-f" "081df0dee831a0d09142ccb96a2729cad436ee924863f2bdf5caabb3c6b7ce58"` [INFO] [stdout] 081df0dee831a0d09142ccb96a2729cad436ee924863f2bdf5caabb3c6b7ce58 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/khernyo/qc-playground:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] d9334fdc669d2ff121382633141dd97d61b9a2aebb64defe5720128578eb3a48 [INFO] running `"docker" "start" "-a" "d9334fdc669d2ff121382633141dd97d61b9a2aebb64defe5720128578eb3a48"` [INFO] [stderr] Compiling rustc-cfg v0.2.0 [INFO] [stderr] Compiling hamming v0.1.3 [INFO] [stderr] Compiling ieee754 v0.2.6 [INFO] [stderr] Compiling ramp v0.5.1 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.1/src/lib.rs:18:1 [INFO] [stderr] | [INFO] [stderr] 18 | #![feature(core_intrinsics, asm, allocator_api)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.1/src/lib.rs:19:1 [INFO] [stderr] | [INFO] [stderr] 19 | #![feature(step_trait, ptr_internals, alloc, raw_vec_internals)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0599]: no method named `cap` found for type `alloc::raw_vec::RawVec` in the current scope [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ramp-0.5.1/src/int.rs:164:31 [INFO] [stderr] | [INFO] [stderr] 164 | let new_cap = vec.cap(); [INFO] [stderr] | ^^^ private field, not a method [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0554, E0599. [INFO] [stderr] For more information about an error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `ramp`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "d9334fdc669d2ff121382633141dd97d61b9a2aebb64defe5720128578eb3a48"` [INFO] running `"docker" "rm" "-f" "d9334fdc669d2ff121382633141dd97d61b9a2aebb64defe5720128578eb3a48"` [INFO] [stdout] d9334fdc669d2ff121382633141dd97d61b9a2aebb64defe5720128578eb3a48