[INFO] cloning repository https://github.com/alphashuro/n-grams [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alphashuro/n-grams" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falphashuro%2Fn-grams", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falphashuro%2Fn-grams'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3d2cd27f4e28d38fe3e1f3d9aea4c4f6b720805b [INFO] checking alphashuro/n-grams against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falphashuro%2Fn-grams" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alphashuro/n-grams 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 git repo https://github.com/alphashuro/n-grams [INFO] finished tweaking git repo https://github.com/alphashuro/n-grams [INFO] tweaked toml for git repo https://github.com/alphashuro/n-grams written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/alphashuro/n-grams 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 575fded27e0f00fc61fb65f97fa70b3ea84fa63ba1e3fe8b9d48bdad707cd504 [INFO] running `Command { std: "docker" "start" "-a" "575fded27e0f00fc61fb65f97fa70b3ea84fa63ba1e3fe8b9d48bdad707cd504", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "575fded27e0f00fc61fb65f97fa70b3ea84fa63ba1e3fe8b9d48bdad707cd504", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "575fded27e0f00fc61fb65f97fa70b3ea84fa63ba1e3fe8b9d48bdad707cd504", kill_on_drop: false }` [INFO] [stdout] 575fded27e0f00fc61fb65f97fa70b3ea84fa63ba1e3fe8b9d48bdad707cd504 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fb2cd7534d4cc0d28c4fdda1829566fb851630af03efcc4a5e1a70027a5ff134 [INFO] running `Command { std: "docker" "start" "-a" "fb2cd7534d4cc0d28c4fdda1829566fb851630af03efcc4a5e1a70027a5ff134", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.139 [INFO] [stderr] Compiling serde_json v1.0.82 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking xmlparser v0.13.3 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking roxmltree v0.14.1 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stderr] Checking n-gram v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Itertools` is imported redundantly [INFO] [stdout] --> src/utils.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 92 | use crate::utils::*; [INFO] [stdout] | --------------- the item `Itertools` is already imported here [INFO] [stdout] 93 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `HashMap` is imported redundantly [INFO] [stdout] --> src/utils.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 92 | use crate::utils::*; [INFO] [stdout] | --------------- the item `HashMap` is already imported here [INFO] [stdout] 93 | use itertools::Itertools; [INFO] [stdout] 94 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `HashMap` is imported redundantly [INFO] [stdout] --> src/lib.rs:188:9 [INFO] [stdout] | [INFO] [stdout] 188 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 192 | use crate::*; [INFO] [stdout] | -------- the item `HashMap` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Itertools` is imported redundantly [INFO] [stdout] --> src/lib.rs:190:9 [INFO] [stdout] | [INFO] [stdout] 190 | use itertools::Itertools; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 191 | [INFO] [stdout] 192 | use crate::*; [INFO] [stdout] | -------- the item `Itertools` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate-level attribute should be in the root module [INFO] [stdout] --> src/utils.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(test)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate-level attribute should be in the root module [INFO] [stdout] --> src/utils.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(test)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::line_to_words` [INFO] [stdout] --> src/main.rs:2:33 [INFO] [stdout] | [INFO] [stdout] 2 | use n_gram::{bigrams, unigrams, utils::line_to_words, Options}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fmt::Display` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | fmt::Display, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::line_to_words` [INFO] [stdout] --> src/main.rs:2:33 [INFO] [stdout] | [INFO] [stdout] 2 | use n_gram::{bigrams, unigrams, utils::line_to_words, Options}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fmt::Display` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | fmt::Display, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> bin/json-to-words.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | target_file.write_all(b"\n"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 29 | let _ = target_file.write_all(b"\n"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> bin/json-to-words.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | target_file.write_all(b"\n"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 29 | let _ = target_file.write_all(b"\n"); [INFO] [stdout] | +++++++ [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 2.48s [INFO] running `Command { std: "docker" "inspect" "fb2cd7534d4cc0d28c4fdda1829566fb851630af03efcc4a5e1a70027a5ff134", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb2cd7534d4cc0d28c4fdda1829566fb851630af03efcc4a5e1a70027a5ff134", kill_on_drop: false }` [INFO] [stdout] fb2cd7534d4cc0d28c4fdda1829566fb851630af03efcc4a5e1a70027a5ff134 [INFO] checking alphashuro/n-grams against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falphashuro%2Fn-grams" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alphashuro/n-grams 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 git repo https://github.com/alphashuro/n-grams [INFO] finished tweaking git repo https://github.com/alphashuro/n-grams [INFO] tweaked toml for git repo https://github.com/alphashuro/n-grams written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/alphashuro/n-grams 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e5b8db2314cc281b2c520e3f3ae9fd555f50fa15af10270cfc17d4a179f59302 [INFO] running `Command { std: "docker" "start" "-a" "e5b8db2314cc281b2c520e3f3ae9fd555f50fa15af10270cfc17d4a179f59302", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5b8db2314cc281b2c520e3f3ae9fd555f50fa15af10270cfc17d4a179f59302", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5b8db2314cc281b2c520e3f3ae9fd555f50fa15af10270cfc17d4a179f59302", kill_on_drop: false }` [INFO] [stdout] e5b8db2314cc281b2c520e3f3ae9fd555f50fa15af10270cfc17d4a179f59302 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] da2cfc18032a0ffae5b2473e253f6e1af2c2a89cb12b7e5657ca4e87f5bc298d [INFO] running `Command { std: "docker" "start" "-a" "da2cfc18032a0ffae5b2473e253f6e1af2c2a89cb12b7e5657ca4e87f5bc298d", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.139 [INFO] [stderr] Compiling serde_json v1.0.82 [INFO] [stderr] Checking xmlparser v0.13.3 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking roxmltree v0.14.1 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.6/src/exec.rs:848:13 [INFO] [stdout] | [INFO] [stdout] 848 | / match dfa::Fsm::reverse( [INFO] [stdout] 849 | | &self.ro.dfa_reverse, [INFO] [stdout] 850 | | self.cache.value(), [INFO] [stdout] 851 | | false, [INFO] [stdout] ... | [INFO] [stdout] 862 | | Quit => return Some(Quit), [INFO] [stdout] 863 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [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 `regex` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "da2cfc18032a0ffae5b2473e253f6e1af2c2a89cb12b7e5657ca4e87f5bc298d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da2cfc18032a0ffae5b2473e253f6e1af2c2a89cb12b7e5657ca4e87f5bc298d", kill_on_drop: false }` [INFO] [stdout] da2cfc18032a0ffae5b2473e253f6e1af2c2a89cb12b7e5657ca4e87f5bc298d