[INFO] fetching crate gcalc 0.4.0... [INFO] checking gcalc-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate gcalc 0.4.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate gcalc 0.4.0 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 gcalc 0.4.0 [INFO] finished tweaking crates.io crate gcalc 0.4.0 [INFO] tweaked toml for crates.io crate gcalc 0.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate gcalc 0.4.0 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] Downloading crates ... [INFO] [stderr] Downloaded papergrid v0.1.23 [INFO] [stderr] Downloaded tabled v0.3.0 [INFO] [stderr] Downloaded dcsv v0.2.0 [INFO] [stderr] Downloaded cindex v0.5.1 [INFO] [stderr] Downloaded clap v3.2.8 [INFO] [stderr] Downloaded libc v0.2.116 [INFO] [stderr] Downloaded tabled_derive v0.1.8 [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] 144d38021e78320672b8b87f70f03a8be327453b4779663f0c62f5681658ca7c [INFO] running `Command { std: "docker" "start" "-a" "144d38021e78320672b8b87f70f03a8be327453b4779663f0c62f5681658ca7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "144d38021e78320672b8b87f70f03a8be327453b4779663f0c62f5681658ca7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "144d38021e78320672b8b87f70f03a8be327453b4779663f0c62f5681658ca7c", kill_on_drop: false }` [INFO] [stdout] 144d38021e78320672b8b87f70f03a8be327453b4779663f0c62f5681658ca7c [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] 31740bef4152f00b5ffd8bb801928238877fb1191b780c8551cba519c5e61619 [INFO] running `Command { std: "docker" "start" "-a" "31740bef4152f00b5ffd8bb801928238877fb1191b780c8551cba519c5e61619", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking dcsv v0.2.0 [INFO] [stderr] Checking cindex v0.5.1 [INFO] [stderr] Checking gcalc v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> src/calc.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> src/calc.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/models.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub(crate) struct Qualficiation { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | pub value: f32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FormatRecord` is never constructed [INFO] [stdout] --> src/models.rs:41:19 [INFO] [stdout] | [INFO] [stdout] 41 | pub(crate) struct FormatRecord { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_record` is never used [INFO] [stdout] --> src/models.rs:50:12 [INFO] [stdout] | [INFO] [stdout] 49 | impl FormatRecord { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 50 | pub fn from_record(record: &Record) -> Self { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/models.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 15 | pub(crate) struct Qualficiation { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | pub value: f32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FormatRecord` is never constructed [INFO] [stdout] --> src/models.rs:41:19 [INFO] [stdout] | [INFO] [stdout] 41 | pub(crate) struct FormatRecord { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_record` is never used [INFO] [stdout] --> src/models.rs:50:12 [INFO] [stdout] | [INFO] [stdout] 49 | impl FormatRecord { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 50 | pub fn from_record(record: &Record) -> Self { [INFO] [stdout] | ^^^^^^^^^^^ [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 3.03s [INFO] running `Command { std: "docker" "inspect" "31740bef4152f00b5ffd8bb801928238877fb1191b780c8551cba519c5e61619", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31740bef4152f00b5ffd8bb801928238877fb1191b780c8551cba519c5e61619", kill_on_drop: false }` [INFO] [stdout] 31740bef4152f00b5ffd8bb801928238877fb1191b780c8551cba519c5e61619 [INFO] checking gcalc-0.4.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate gcalc 0.4.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate gcalc 0.4.0 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 gcalc 0.4.0 [INFO] finished tweaking crates.io crate gcalc 0.4.0 [INFO] tweaked toml for crates.io crate gcalc 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate gcalc 0.4.0 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-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] 6fe3ad95b350538655dda64f53549df2fe12c7f984cd1df6f85866b175685a06 [INFO] running `Command { std: "docker" "start" "-a" "6fe3ad95b350538655dda64f53549df2fe12c7f984cd1df6f85866b175685a06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6fe3ad95b350538655dda64f53549df2fe12c7f984cd1df6f85866b175685a06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6fe3ad95b350538655dda64f53549df2fe12c7f984cd1df6f85866b175685a06", kill_on_drop: false }` [INFO] [stdout] 6fe3ad95b350538655dda64f53549df2fe12c7f984cd1df6f85866b175685a06 [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] 074944bc9794d33711c760c3510056fce25559529d3de40aca915625ccd50cf3 [INFO] running `Command { std: "docker" "start" "-a" "074944bc9794d33711c760c3510056fce25559529d3de40aca915625ccd50cf3", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.4/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] running `Command { std: "docker" "inspect" "074944bc9794d33711c760c3510056fce25559529d3de40aca915625ccd50cf3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "074944bc9794d33711c760c3510056fce25559529d3de40aca915625ccd50cf3", kill_on_drop: false }` [INFO] [stdout] 074944bc9794d33711c760c3510056fce25559529d3de40aca915625ccd50cf3