[INFO] fetching crate wavelet-matrix 0.4.7... [INFO] checking wavelet-matrix-0.4.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate wavelet-matrix 0.4.7 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate wavelet-matrix 0.4.7 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 wavelet-matrix 0.4.7 [INFO] finished tweaking crates.io crate wavelet-matrix 0.4.7 [INFO] tweaked toml for crates.io crate wavelet-matrix 0.4.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 27 packages [INFO] [stderr] Adding easybench v0.1.4 (latest: v1.1.1) [INFO] [stderr] Adding humantime v1.3.0 (latest: v2.1.0) [INFO] [stderr] Adding itertools v0.7.11 (latest: v0.12.1) [INFO] [stderr] Adding num v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding num-bigint v0.1.44 (latest: v0.4.4) [INFO] [stderr] Adding num-complex v0.1.43 (latest: v0.4.5) [INFO] [stderr] Adding num-rational v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding quick-error v1.2.3 (latest: v2.0.1) [INFO] [stderr] Adding rand v0.3.23 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding succinct v0.4.4 (latest: v0.5.2) [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] Downloading crates ... [INFO] [stderr] Downloaded easybench v0.1.4 [INFO] [stderr] Downloaded succinct v0.4.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6866051b939a505fa93769c7b915361544f6281c3356834c5fba871da4812fef [INFO] running `Command { std: "docker" "start" "-a" "6866051b939a505fa93769c7b915361544f6281c3356834c5fba871da4812fef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6866051b939a505fa93769c7b915361544f6281c3356834c5fba871da4812fef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6866051b939a505fa93769c7b915361544f6281c3356834c5fba871da4812fef", kill_on_drop: false }` [INFO] [stdout] 6866051b939a505fa93769c7b915361544f6281c3356834c5fba871da4812fef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bfef7d5ff49142442b078ac97fa642b90345c82dba2e5bd174dab9aaf7c4230b [INFO] running `Command { std: "docker" "start" "-a" "bfef7d5ff49142442b078ac97fa642b90345c82dba2e5bd174dab9aaf7c4230b", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking easybench v0.1.4 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking succinct v0.4.4 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking wavelet-matrix v0.4.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `SpaceUsage` is imported redundantly [INFO] [stdout] --> src/rsdic_simple.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 1 | use succinct::*; [INFO] [stdout] | ----------- the item `SpaceUsage` is already imported here [INFO] [stdout] ... [INFO] [stdout] 4 | use succinct::SpaceUsage; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stdout] warning: the item `SpaceUsage` is imported redundantly [INFO] [stdout] --> src/rsdic_simple.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 1 | use succinct::*; [INFO] [stdout] | ----------- the item `SpaceUsage` is already imported here [INFO] [stdout] ... [INFO] [stdout] 4 | use succinct::SpaceUsage; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> benches/easybench.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | let mut rng = rand::weak_rng(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `limit_secs` [INFO] [stdout] --> benches/easybench.rs:57:55 [INFO] [stdout] | [INFO] [stdout] 57 | fn overall_helper(num: usize, desc: &str, upper: u64, limit_secs: u64) { [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_limit_secs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `errorpct` is never read [INFO] [stdout] --> benches/easybench.rs:332:13 [INFO] [stdout] | [INFO] [stdout] 332 | let mut errorpct = 0.0; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `statstical_helper` is never used [INFO] [stdout] --> benches/easybench.rs:264:4 [INFO] [stdout] | [INFO] [stdout] 264 | fn statstical_helper(num: usize, lower: u64, upper: u64, k: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_uniform_find_sufficient_k` is never used [INFO] [stdout] --> benches/easybench.rs:330:4 [INFO] [stdout] | [INFO] [stdout] 330 | fn sum_uniform_find_sufficient_k(num: usize, lower: u64, upper: u64, accuracy_pct: f64) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `average` is never used [INFO] [stdout] --> benches/easybench.rs:373:4 [INFO] [stdout] | [INFO] [stdout] 373 | fn average(r: &std::ops::Range) -> u64 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `error_pct` is never used [INFO] [stdout] --> benches/easybench.rs:377:4 [INFO] [stdout] | [INFO] [stdout] 377 | fn error_pct(computed: u64, actual: u64) -> f64 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `statistical_performance` is never used [INFO] [stdout] --> benches/easybench.rs:392:4 [INFO] [stdout] | [INFO] [stdout] 392 | fn statistical_performance() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `statistical_sufficient_k` is never used [INFO] [stdout] --> benches/easybench.rs:421:4 [INFO] [stdout] | [INFO] [stdout] 421 | fn statistical_sufficient_k() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings 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 1.46s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint v0.1.44, num-complex v0.1.43, num-rational v0.1.42 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "bfef7d5ff49142442b078ac97fa642b90345c82dba2e5bd174dab9aaf7c4230b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfef7d5ff49142442b078ac97fa642b90345c82dba2e5bd174dab9aaf7c4230b", kill_on_drop: false }` [INFO] [stdout] bfef7d5ff49142442b078ac97fa642b90345c82dba2e5bd174dab9aaf7c4230b [INFO] checking wavelet-matrix-0.4.7 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate wavelet-matrix 0.4.7 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate wavelet-matrix 0.4.7 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 wavelet-matrix 0.4.7 [INFO] finished tweaking crates.io crate wavelet-matrix 0.4.7 [INFO] tweaked toml for crates.io crate wavelet-matrix 0.4.7 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8ddb249cdeafce535c5b75fc782ca46e16575c3a593259de36ca1c3570f3619a [INFO] running `Command { std: "docker" "start" "-a" "8ddb249cdeafce535c5b75fc782ca46e16575c3a593259de36ca1c3570f3619a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8ddb249cdeafce535c5b75fc782ca46e16575c3a593259de36ca1c3570f3619a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ddb249cdeafce535c5b75fc782ca46e16575c3a593259de36ca1c3570f3619a", kill_on_drop: false }` [INFO] [stdout] 8ddb249cdeafce535c5b75fc782ca46e16575c3a593259de36ca1c3570f3619a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d30bfc9ac70d144e82bd29b5ee2657b36a97575e66cdcd433dc759d0cbe8e4a7 [INFO] running `Command { std: "docker" "start" "-a" "d30bfc9ac70d144e82bd29b5ee2657b36a97575e66cdcd433dc759d0cbe8e4a7", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking easybench v0.1.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.25/src/json.rs:1387:20 [INFO] [stdout] | [INFO] [stdout] 1387 | _ => { panic!(); } [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand v0.4.6 [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] Checking num-integer v0.1.46 [INFO] [stderr] Checking succinct v0.4.4 [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d30bfc9ac70d144e82bd29b5ee2657b36a97575e66cdcd433dc759d0cbe8e4a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d30bfc9ac70d144e82bd29b5ee2657b36a97575e66cdcd433dc759d0cbe8e4a7", kill_on_drop: false }` [INFO] [stdout] d30bfc9ac70d144e82bd29b5ee2657b36a97575e66cdcd433dc759d0cbe8e4a7