[INFO] cloning repository https://github.com/vasily-kirichenko/regex_benchmark [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vasily-kirichenko/regex_benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Fregex_benchmark", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Fregex_benchmark'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7aca2d1a5e38734e9e36f3f0f7cbb4a1fb2b24c0 [INFO] checking vasily-kirichenko/regex_benchmark against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Fregex_benchmark" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vasily-kirichenko/regex_benchmark 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/vasily-kirichenko/regex_benchmark [INFO] finished tweaking git repo https://github.com/vasily-kirichenko/regex_benchmark [INFO] tweaked toml for git repo https://github.com/vasily-kirichenko/regex_benchmark written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/vasily-kirichenko/regex_benchmark 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lazy_static v0.2.11 [INFO] [stderr] Downloaded utf8-ranges v1.0.0 [INFO] [stderr] Downloaded cfg-if v0.1.2 [INFO] [stderr] Downloaded rustc-demangle v0.1.5 [INFO] [stderr] Downloaded memchr v2.0.1 [INFO] [stderr] Downloaded unreachable v1.0.0 [INFO] [stderr] Downloaded dbghelp-sys v0.2.0 [INFO] [stderr] Downloaded error-chain v0.11.0 [INFO] [stderr] Downloaded aho-corasick v0.6.4 [INFO] [stderr] Downloaded cc v1.0.3 [INFO] [stderr] Downloaded itertools v0.7.4 [INFO] [stderr] Downloaded regex-syntax v0.4.1 [INFO] [stderr] Downloaded backtrace-sys v0.1.16 [INFO] [stderr] Downloaded regex v0.2.3 [INFO] [stderr] Downloaded libc v0.2.34 [INFO] [stderr] Downloaded backtrace v0.3.4 [INFO] [stderr] Downloaded time v0.1.38 [INFO] [stderr] Downloaded either v1.4.0 [INFO] [stderr] Downloaded thread_local v0.3.4 [INFO] [stderr] Downloaded redox_syscall v0.1.32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c52bde7c6b4d4a5fac4e45953dcc74dccb0f9f7037f0af57977ecf4738eb9fd3 [INFO] running `Command { std: "docker" "start" "-a" "c52bde7c6b4d4a5fac4e45953dcc74dccb0f9f7037f0af57977ecf4738eb9fd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c52bde7c6b4d4a5fac4e45953dcc74dccb0f9f7037f0af57977ecf4738eb9fd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c52bde7c6b4d4a5fac4e45953dcc74dccb0f9f7037f0af57977ecf4738eb9fd3", kill_on_drop: false }` [INFO] [stdout] c52bde7c6b4d4a5fac4e45953dcc74dccb0f9f7037f0af57977ecf4738eb9fd3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3b41e568010ad9672f8098efdba48973f5479b456c11a1cdd6eb149329a58901 [INFO] running `Command { std: "docker" "start" "-a" "3b41e568010ad9672f8098efdba48973f5479b456c11a1cdd6eb149329a58901", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.34 [INFO] [stderr] Compiling cc v1.0.3 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking rustc-demangle v0.1.5 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking either v1.4.0 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking itertools v0.7.4 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Checking regex v0.2.3 [INFO] [stderr] Checking backtrace v0.3.4 [INFO] [stderr] Checking error-chain v0.11.0 [INFO] [stderr] Checking regex_benchmark v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] ... [INFO] [stdout] 67 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] ... [INFO] [stdout] 67 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | / error_chain!{ [INFO] [stdout] 19 | | foreign_links { [INFO] [stdout] 20 | | Io(::std::io::Error); [INFO] [stdout] 21 | | Regex(::regex::Error); [INFO] [stdout] 22 | | } [INFO] [stdout] 23 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | / error_chain!{ [INFO] [stdout] 19 | | foreign_links { [INFO] [stdout] 20 | | Io(::std::io::Error); [INFO] [stdout] 21 | | Regex(::regex::Error); [INFO] [stdout] 22 | | } [INFO] [stdout] 23 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `universal_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(universal_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `universal_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(universal_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | / error_chain!{ [INFO] [stdout] 19 | | foreign_links { [INFO] [stdout] 20 | | Io(::std::io::Error); [INFO] [stdout] 21 | | Regex(::regex::Error); [INFO] [stdout] 22 | | } [INFO] [stdout] 23 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | / error_chain!{ [INFO] [stdout] 19 | | foreign_links { [INFO] [stdout] 20 | | Io(::std::io::Error); [INFO] [stdout] 21 | | Regex(::regex::Error); [INFO] [stdout] 22 | | } [INFO] [stdout] 23 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.44s [INFO] running `Command { std: "docker" "inspect" "3b41e568010ad9672f8098efdba48973f5479b456c11a1cdd6eb149329a58901", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b41e568010ad9672f8098efdba48973f5479b456c11a1cdd6eb149329a58901", kill_on_drop: false }` [INFO] [stdout] 3b41e568010ad9672f8098efdba48973f5479b456c11a1cdd6eb149329a58901 [INFO] checking vasily-kirichenko/regex_benchmark against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasily-kirichenko%2Fregex_benchmark" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vasily-kirichenko/regex_benchmark 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/vasily-kirichenko/regex_benchmark [INFO] finished tweaking git repo https://github.com/vasily-kirichenko/regex_benchmark [INFO] tweaked toml for git repo https://github.com/vasily-kirichenko/regex_benchmark written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/vasily-kirichenko/regex_benchmark 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8cb1c9705f8497409e1eafd33bf5b838ce7a07b3f3d4d8ad64898c8342ef8328 [INFO] running `Command { std: "docker" "start" "-a" "8cb1c9705f8497409e1eafd33bf5b838ce7a07b3f3d4d8ad64898c8342ef8328", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8cb1c9705f8497409e1eafd33bf5b838ce7a07b3f3d4d8ad64898c8342ef8328", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8cb1c9705f8497409e1eafd33bf5b838ce7a07b3f3d4d8ad64898c8342ef8328", kill_on_drop: false }` [INFO] [stdout] 8cb1c9705f8497409e1eafd33bf5b838ce7a07b3f3d4d8ad64898c8342ef8328 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 880458aa5916b2819f71d63773d02efae8a10d9039b7d9f95d33ae6c4d05ec80 [INFO] running `Command { std: "docker" "start" "-a" "880458aa5916b2819f71d63773d02efae8a10d9039b7d9f95d33ae6c4d05ec80", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.34 [INFO] [stderr] Compiling cc v1.0.3 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking rustc-demangle v0.1.5 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking either v1.4.0 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking itertools v0.7.4 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Checking regex v0.2.3 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.3/src/exec.rs:738:13 [INFO] [stdout] | [INFO] [stdout] 738 | / match dfa::Fsm::reverse( [INFO] [stdout] 739 | | &self.ro.dfa_reverse, [INFO] [stdout] 740 | | self.cache, [INFO] [stdout] 741 | | false, [INFO] [stdout] ... | [INFO] [stdout] 748 | | Quit => return Some(Quit), [INFO] [stdout] 749 | | }; [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" "880458aa5916b2819f71d63773d02efae8a10d9039b7d9f95d33ae6c4d05ec80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "880458aa5916b2819f71d63773d02efae8a10d9039b7d9f95d33ae6c4d05ec80", kill_on_drop: false }` [INFO] [stdout] 880458aa5916b2819f71d63773d02efae8a10d9039b7d9f95d33ae6c4d05ec80