[INFO] fetching crate lc3asm 0.1.2... [INFO] checking lc3asm-0.1.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate lc3asm 0.1.2 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate lc3asm 0.1.2 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 lc3asm 0.1.2 [INFO] finished tweaking crates.io crate lc3asm 0.1.2 [INFO] tweaked toml for crates.io crate lc3asm 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate lc3asm 0.1.2 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 lc3dbg v1.2.2 [INFO] [stderr] Downloaded pest v2.1.1 [INFO] [stderr] Downloaded maplit v1.0.1 [INFO] [stderr] Downloaded typenum v1.10.0 [INFO] [stderr] Downloaded unescape v0.1.0 [INFO] [stderr] Downloaded clicolors-control v1.0.0 [INFO] [stderr] Downloaded pretty-bytes v0.2.2 [INFO] [stderr] Downloaded pest_generator v2.1.0 [INFO] [stderr] Downloaded arraydeque v0.4.5 [INFO] [stderr] Downloaded encode_unicode v0.3.5 [INFO] [stderr] Downloaded cc v1.0.40 [INFO] [stderr] Downloaded backtrace v0.3.34 [INFO] [stderr] Downloaded regex-syntax v0.6.11 [INFO] [stderr] Downloaded getopts v0.2.19 [INFO] [stderr] Downloaded regex v1.2.1 [INFO] [stderr] Downloaded pest_meta v2.1.1 [INFO] [stderr] Downloaded lc3-rs v0.4.3 [INFO] [stderr] Downloaded bitstream-io v0.8.4 [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] 718d7555775031fb0dc3c574b06901665d950975d057a382107b86d395f91c39 [INFO] running `Command { std: "docker" "start" "-a" "718d7555775031fb0dc3c574b06901665d950975d057a382107b86d395f91c39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "718d7555775031fb0dc3c574b06901665d950975d057a382107b86d395f91c39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "718d7555775031fb0dc3c574b06901665d950975d057a382107b86d395f91c39", kill_on_drop: false }` [INFO] [stdout] 718d7555775031fb0dc3c574b06901665d950975d057a382107b86d395f91c39 [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] d486a39dcce2751157713d17d22bbde2dce4a3a92d9944d2842d10037c0197a1 [INFO] running `Command { std: "docker" "start" "-a" "d486a39dcce2751157713d17d22bbde2dce4a3a92d9944d2842d10037c0197a1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling cc v1.0.40 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling ucd-trie v0.1.2 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling pest v2.1.1 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling maplit v1.0.1 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking lock_api v0.3.1 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking regex-syntax v0.6.11 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Compiling pest_meta v2.1.1 [INFO] [stderr] Compiling arraydeque v0.4.5 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking getopts v0.2.19 [INFO] [stderr] Checking clicolors-control v1.0.0 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking pretty-bytes v0.2.2 [INFO] [stderr] Checking unescape v0.1.0 [INFO] [stderr] Checking lc3-rs v0.4.3 [INFO] [stderr] Checking bitstream-io v0.8.4 [INFO] [stderr] Checking backtrace v0.3.34 [INFO] [stderr] Checking regex v1.2.1 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling pest_generator v2.1.0 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking lc3dbg v1.2.2 [INFO] [stderr] Checking lc3asm v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/symbol_table.rs:49:23 [INFO] [stdout] | [INFO] [stdout] 49 | let (symbols, size, entry) = crate::first_pass(&parsed)?; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:95:34 [INFO] [stdout] | [INFO] [stdout] 95 | unreachable!(pair); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `unreachable!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 95 | unreachable!("{}", pair); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/lib.rs:95:34 [INFO] [stdout] | [INFO] [stdout] 95 | unreachable!(pair); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `unreachable!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 95 | unreachable!("{}", pair); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.94s [INFO] running `Command { std: "docker" "inspect" "d486a39dcce2751157713d17d22bbde2dce4a3a92d9944d2842d10037c0197a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d486a39dcce2751157713d17d22bbde2dce4a3a92d9944d2842d10037c0197a1", kill_on_drop: false }` [INFO] [stdout] d486a39dcce2751157713d17d22bbde2dce4a3a92d9944d2842d10037c0197a1 [INFO] checking lc3asm-0.1.2 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate lc3asm 0.1.2 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate lc3asm 0.1.2 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 lc3asm 0.1.2 [INFO] finished tweaking crates.io crate lc3asm 0.1.2 [INFO] tweaked toml for crates.io crate lc3asm 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate lc3asm 0.1.2 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] [stderr] Blocking waiting for file lock on package cache [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] 8e14adef4b7e8755d5471fa40e93a663a1c5cf0f411c12ad471c50eaabcac895 [INFO] running `Command { std: "docker" "start" "-a" "8e14adef4b7e8755d5471fa40e93a663a1c5cf0f411c12ad471c50eaabcac895", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8e14adef4b7e8755d5471fa40e93a663a1c5cf0f411c12ad471c50eaabcac895", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8e14adef4b7e8755d5471fa40e93a663a1c5cf0f411c12ad471c50eaabcac895", kill_on_drop: false }` [INFO] [stdout] 8e14adef4b7e8755d5471fa40e93a663a1c5cf0f411c12ad471c50eaabcac895 [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] 6cca0bb66c937dda4be15e1bf05e92087545f4ebf956f90a5b69045287a63248 [INFO] running `Command { std: "docker" "start" "-a" "6cca0bb66c937dda4be15e1bf05e92087545f4ebf956f90a5b69045287a63248", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling cc v1.0.40 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling ucd-trie v0.1.2 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling pest v2.1.1 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling maplit v1.0.1 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking lock_api v0.3.1 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling pest_meta v2.1.1 [INFO] [stderr] Compiling arraydeque v0.4.5 [INFO] [stderr] Checking regex-syntax v0.6.11 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking clicolors-control v1.0.0 [INFO] [stderr] Checking getopts v0.2.19 [INFO] [stderr] Checking bitstream-io v0.8.4 [INFO] [stderr] Checking pretty-bytes v0.2.2 [INFO] [stderr] Checking unescape v0.1.0 [INFO] [stderr] Checking lc3-rs v0.4.3 [INFO] [stderr] Checking backtrace v0.3.34 [INFO] [stderr] Checking regex v1.2.1 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling pest_generator v2.1.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.2.1/src/exec.rs:797:13 [INFO] [stdout] | [INFO] [stdout] 797 | / match dfa::Fsm::reverse( [INFO] [stdout] 798 | | &self.ro.dfa_reverse, [INFO] [stdout] 799 | | self.cache, [INFO] [stdout] 800 | | false, [INFO] [stdout] ... | [INFO] [stdout] 811 | | Quit => return Some(Quit), [INFO] [stdout] 812 | | }; [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" "6cca0bb66c937dda4be15e1bf05e92087545f4ebf956f90a5b69045287a63248", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cca0bb66c937dda4be15e1bf05e92087545f4ebf956f90a5b69045287a63248", kill_on_drop: false }` [INFO] [stdout] 6cca0bb66c937dda4be15e1bf05e92087545f4ebf956f90a5b69045287a63248