[INFO] cloning repository https://github.com/cr0sh/lc3dbg [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cr0sh/lc3dbg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcr0sh%2Flc3dbg", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcr0sh%2Flc3dbg'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4fb807d05d295ff629dae6f6911b94fdfebcd706 [INFO] checking cr0sh/lc3dbg against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcr0sh%2Flc3dbg" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cr0sh/lc3dbg 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/cr0sh/lc3dbg [INFO] finished tweaking git repo https://github.com/cr0sh/lc3dbg [INFO] tweaked toml for git repo https://github.com/cr0sh/lc3dbg written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/cr0sh/lc3dbg 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 pretty-bytes v0.2.2 [INFO] [stderr] Downloaded parking_lot v0.8.0 [INFO] [stderr] Downloaded clicolors-control v1.0.0 [INFO] [stderr] Downloaded console v0.7.5 [INFO] [stderr] Downloaded bitflags v1.0.5 [INFO] [stderr] Downloaded arraydeque v0.4.5 [INFO] [stderr] Downloaded parking_lot_core v0.5.0 [INFO] [stderr] Downloaded syn v0.15.33 [INFO] [stderr] Downloaded encode_unicode v0.3.5 [INFO] [stderr] Downloaded lock_api v0.2.0 [INFO] [stderr] Downloaded lc3-rs v0.4.1 [INFO] [stderr] Downloaded getopts v0.2.19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 40cfae4f8125dd4ee9742ad7cdf1bc0d019124fd746462aa39ee66edfdad35ff [INFO] running `Command { std: "docker" "start" "-a" "40cfae4f8125dd4ee9742ad7cdf1bc0d019124fd746462aa39ee66edfdad35ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "40cfae4f8125dd4ee9742ad7cdf1bc0d019124fd746462aa39ee66edfdad35ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40cfae4f8125dd4ee9742ad7cdf1bc0d019124fd746462aa39ee66edfdad35ff", kill_on_drop: false }` [INFO] [stdout] 40cfae4f8125dd4ee9742ad7cdf1bc0d019124fd746462aa39ee66edfdad35ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 60006f92f284bc270e34cb55b0d80c6f4d9fc7664d0ce4d507ab004eca5d20ff [INFO] running `Command { std: "docker" "start" "-a" "60006f92f284bc270e34cb55b0d80c6f4d9fc7664d0ce4d507ab004eca5d20ff", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling libc v0.2.54 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling proc-macro2 v0.4.29 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling cc v1.0.36 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling arraydeque v0.4.5 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Checking regex-syntax v0.6.6 [INFO] [stderr] Checking lock_api v0.2.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling backtrace v0.3.15 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking getopts v0.2.19 [INFO] [stderr] Checking lc3-rs v0.4.1 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clicolors-control v1.0.0 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking pretty-bytes v0.2.2 [INFO] [stderr] Checking console v0.7.5 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking lc3dbg v1.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/helper.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/helper.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/symbol.rs:99:29 [INFO] [stdout] | [INFO] [stdout] 99 | let splits = instruction.clone().split(" ").collect::>(); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/symbol.rs:99:29 [INFO] [stdout] | [INFO] [stdout] 99 | let splits = instruction.clone().split(" ").collect::>(); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.20s [INFO] running `Command { std: "docker" "inspect" "60006f92f284bc270e34cb55b0d80c6f4d9fc7664d0ce4d507ab004eca5d20ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "60006f92f284bc270e34cb55b0d80c6f4d9fc7664d0ce4d507ab004eca5d20ff", kill_on_drop: false }` [INFO] [stdout] 60006f92f284bc270e34cb55b0d80c6f4d9fc7664d0ce4d507ab004eca5d20ff [INFO] checking cr0sh/lc3dbg against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcr0sh%2Flc3dbg" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cr0sh/lc3dbg 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/cr0sh/lc3dbg [INFO] finished tweaking git repo https://github.com/cr0sh/lc3dbg [INFO] tweaked toml for git repo https://github.com/cr0sh/lc3dbg written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/cr0sh/lc3dbg 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6d864d99132cd4120188be213e734fb51377c1ca157e9038a00adc26fd591b61 [INFO] running `Command { std: "docker" "start" "-a" "6d864d99132cd4120188be213e734fb51377c1ca157e9038a00adc26fd591b61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6d864d99132cd4120188be213e734fb51377c1ca157e9038a00adc26fd591b61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d864d99132cd4120188be213e734fb51377c1ca157e9038a00adc26fd591b61", kill_on_drop: false }` [INFO] [stdout] 6d864d99132cd4120188be213e734fb51377c1ca157e9038a00adc26fd591b61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8886e61fd39cfed3a2c49d4b97cf35a960c50122301c0e6301e5ba06380028a0 [INFO] running `Command { std: "docker" "start" "-a" "8886e61fd39cfed3a2c49d4b97cf35a960c50122301c0e6301e5ba06380028a0", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling libc v0.2.54 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling proc-macro2 v0.4.29 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling cc v1.0.36 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Compiling arraydeque v0.4.5 [INFO] [stderr] Checking lock_api v0.2.0 [INFO] [stderr] Checking regex-syntax v0.6.6 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling backtrace v0.3.15 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking getopts v0.2.19 [INFO] [stderr] Checking lc3-rs v0.4.1 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking clicolors-control v1.0.0 [INFO] [stderr] Checking pretty-bytes v0.2.2 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.1.6/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" "8886e61fd39cfed3a2c49d4b97cf35a960c50122301c0e6301e5ba06380028a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8886e61fd39cfed3a2c49d4b97cf35a960c50122301c0e6301e5ba06380028a0", kill_on_drop: false }` [INFO] [stdout] 8886e61fd39cfed3a2c49d4b97cf35a960c50122301c0e6301e5ba06380028a0