[INFO] fetching crate multistochgrad 0.1.4... [INFO] checking multistochgrad-0.1.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate multistochgrad 0.1.4 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate multistochgrad 0.1.4 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate multistochgrad 0.1.4 [INFO] finished tweaking crates.io crate multistochgrad 0.1.4 [INFO] tweaked toml for crates.io crate multistochgrad 0.1.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate crates.io crate multistochgrad 0.1.4 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded hermit-abi v0.1.11 [INFO] [stderr] Downloaded cpu-time v1.0.0 [INFO] [stderr] Downloaded time v0.2.25 [INFO] [stderr] Downloaded ndarray v0.15.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1c34727bdf4d0db2aa9fb1a0c7f752a703b9225cfb77395b152141e5b8bfd456 [INFO] running `Command { std: "docker" "start" "-a" "1c34727bdf4d0db2aa9fb1a0c7f752a703b9225cfb77395b152141e5b8bfd456", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c34727bdf4d0db2aa9fb1a0c7f752a703b9225cfb77395b152141e5b8bfd456", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c34727bdf4d0db2aa9fb1a0c7f752a703b9225cfb77395b152141e5b8bfd456", kill_on_drop: false }` [INFO] [stdout] 1c34727bdf4d0db2aa9fb1a0c7f752a703b9225cfb77395b152141e5b8bfd456 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 527f636cc74ec6975fa0ccba4eeacd61e6e3dbe1ab4193f79b3d01edd8479086 [INFO] running `Command { std: "docker" "start" "-a" "527f636cc74ec6975fa0ccba4eeacd61e6e3dbe1ab4193f79b3d01edd8479086", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling libm v0.2.1 [INFO] [stderr] Compiling standback v0.2.17 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling const_fn v0.4.8 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling time v0.2.25 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Checking matrixmultiply v0.3.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking cpu-time v1.0.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.4 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand_xoshiro v0.6.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Checking env_logger v0.8.3 [INFO] [stderr] Checking rand_distr v0.4.0 [INFO] [stderr] Checking ndarray v0.15.2 [INFO] [stderr] Compiling time-macros-impl v0.1.1 [INFO] [stderr] Checking time-macros v0.1.1 [INFO] [stderr] Checking multistochgrad v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Array` is imported redundantly [INFO] [stdout] --> src/applis/linear_regression.rs:6:15 [INFO] [stdout] | [INFO] [stdout] 5 | use ndarray::prelude::*; [INFO] [stdout] | ------------------- the item `Array` is already imported here [INFO] [stdout] 6 | use ndarray::{Array, Zip}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Array` is imported redundantly [INFO] [stdout] --> src/applis/linear_regression.rs:6:15 [INFO] [stdout] | [INFO] [stdout] 5 | use ndarray::prelude::*; [INFO] [stdout] | ------------------- the item `Array` is already imported here [INFO] [stdout] 6 | use ndarray::{Array, Zip}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `ndarray::parallel::impl_par_methods::>::par_apply`: Renamed to .par_for_each() [INFO] [stdout] --> src/applis/linear_regression.rs:30:36 [INFO] [stdout] | [INFO] [stdout] 30 | Zip::from(gradient).and(x).par_apply(| g, &xv| *g = xv * (-e)); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `ndarray::parallel::impl_par_methods::>::par_apply`: Renamed to .par_for_each() [INFO] [stdout] --> src/applis/linear_regression.rs:30:36 [INFO] [stdout] | [INFO] [stdout] 30 | Zip::from(gradient).and(x).par_apply(| g, &xv| *g = xv * (-e)); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `last_position` is never read [INFO] [stdout] --> src/monitor.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct IterationRes { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 35 | pub last_position : Option>, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `last_position` is never read [INFO] [stdout] --> src/monitor.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 24 | pub struct IterationRes { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 35 | pub last_position : Option>, [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] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> examples/mnist_logistic_scsg.rs:40:51 [INFO] [stdout] | [INFO] [stdout] 40 | let label_path = PathBuf::from(LABEL_FNAME_STR.clone()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> examples/mnist_logistic_sag.rs:44:51 [INFO] [stdout] | [INFO] [stdout] 44 | let label_path = PathBuf::from(LABEL_FNAME_STR.clone()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> examples/mnist_logistic_svrg.rs:43:51 [INFO] [stdout] | [INFO] [stdout] 43 | let label_path = PathBuf::from(LABEL_FNAME_STR.clone()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.08s [INFO] running `Command { std: "docker" "inspect" "527f636cc74ec6975fa0ccba4eeacd61e6e3dbe1ab4193f79b3d01edd8479086", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "527f636cc74ec6975fa0ccba4eeacd61e6e3dbe1ab4193f79b3d01edd8479086", kill_on_drop: false }` [INFO] [stdout] 527f636cc74ec6975fa0ccba4eeacd61e6e3dbe1ab4193f79b3d01edd8479086 [INFO] checking multistochgrad-0.1.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate multistochgrad 0.1.4 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate multistochgrad 0.1.4 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate multistochgrad 0.1.4 [INFO] finished tweaking crates.io crate multistochgrad 0.1.4 [INFO] tweaked toml for crates.io crate multistochgrad 0.1.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate multistochgrad 0.1.4 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e02792b68b9323cb674c4b406ab156d0a4652ff0983bb97eddcf87fa34b4f32c [INFO] running `Command { std: "docker" "start" "-a" "e02792b68b9323cb674c4b406ab156d0a4652ff0983bb97eddcf87fa34b4f32c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e02792b68b9323cb674c4b406ab156d0a4652ff0983bb97eddcf87fa34b4f32c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e02792b68b9323cb674c4b406ab156d0a4652ff0983bb97eddcf87fa34b4f32c", kill_on_drop: false }` [INFO] [stdout] e02792b68b9323cb674c4b406ab156d0a4652ff0983bb97eddcf87fa34b4f32c [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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2f144ad84e3004aa40a9a4f2bd24db2b4815c12f1b91bd83388d1f6532925574 [INFO] running `Command { std: "docker" "start" "-a" "2f144ad84e3004aa40a9a4f2bd24db2b4815c12f1b91bd83388d1f6532925574", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling libm v0.2.1 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling const_fn v0.4.8 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling standback v0.2.17 [INFO] [stderr] Compiling time v0.2.25 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Checking matrixmultiply v0.3.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.4 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking cpu-time v1.0.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/crossbeam-utils-0.8.4/src/sync/parker.rs:364:25 [INFO] [stdout] | [INFO] [stdout] 364 | / match self.state.swap(EMPTY, SeqCst) { [INFO] [stdout] 365 | | NOTIFIED | PARKED => return, [INFO] [stdout] 366 | | n => panic!("inconsistent park_timeout state: {}", n), [INFO] [stdout] 367 | | }; [INFO] [stdout] | |_________________________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `crossbeam-utils` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "2f144ad84e3004aa40a9a4f2bd24db2b4815c12f1b91bd83388d1f6532925574", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f144ad84e3004aa40a9a4f2bd24db2b4815c12f1b91bd83388d1f6532925574", kill_on_drop: false }` [INFO] [stdout] 2f144ad84e3004aa40a9a4f2bd24db2b4815c12f1b91bd83388d1f6532925574