[INFO] fetching crate dmenv 0.20.1... [INFO] checking dmenv-0.20.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate dmenv 0.20.1 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate dmenv 0.20.1 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 dmenv 0.20.1 [INFO] finished tweaking crates.io crate dmenv 0.20.1 [INFO] tweaked toml for crates.io crate dmenv 0.20.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate dmenv 0.20.1 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 which v2.0.1 [INFO] [stderr] Downloaded shell32-sys v0.1.2 [INFO] [stderr] Downloaded rust-ini v0.13.0 [INFO] [stderr] Downloaded backtrace v0.3.40 [INFO] [stderr] Downloaded ole32-sys v0.2.0 [INFO] [stderr] Downloaded app_dirs v1.2.1 [INFO] [stderr] Downloaded cc v1.0.46 [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] 09e010fa34561eb488f2346ffcc3c60ff578a6d4bcbbc3547eecf7a03e39e6ec [INFO] running `Command { std: "docker" "start" "-a" "09e010fa34561eb488f2346ffcc3c60ff578a6d4bcbbc3547eecf7a03e39e6ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "09e010fa34561eb488f2346ffcc3c60ff578a6d4bcbbc3547eecf7a03e39e6ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09e010fa34561eb488f2346ffcc3c60ff578a6d4bcbbc3547eecf7a03e39e6ec", kill_on_drop: false }` [INFO] [stdout] 09e010fa34561eb488f2346ffcc3c60ff578a6d4bcbbc3547eecf7a03e39e6ec [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] a0f46803348c7a2ad3fa680e79e319e3bb28f7b2c233af6f36eb098bc6293a58 [INFO] running `Command { std: "docker" "start" "-a" "a0f46803348c7a2ad3fa680e79e319e3bb28f7b2c233af6f36eb098bc6293a58", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling cc v1.0.46 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling cgmath v0.16.1 [INFO] [stderr] Compiling winapi v0.3.8 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking approx v0.1.1 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking rgb v0.8.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Checking same-file v1.0.5 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking app_dirs v1.2.1 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking walkdir v2.2.9 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking bstr v0.2.8 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Checking backtrace v0.3.40 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Checking which v2.0.1 [INFO] [stderr] Checking globset v0.4.4 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking winconsole v0.10.0 [INFO] [stderr] Checking colored v1.8.0 [INFO] [stderr] Checking ignore v0.4.10 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking dmenv v0.20.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `AsRef` is imported redundantly [INFO] [stdout] --> src/execv.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::convert::AsRef; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `AsRef` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `parse_git_line`, `parse_line` [INFO] [stdout] --> src/lock/mod.rs:8:24 [INFO] [stdout] | [INFO] [stdout] 8 | pub use parse::{parse, parse_git_line, parse_line, parse_simple_line}; [INFO] [stdout] | ^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `AsRef` is imported redundantly [INFO] [stdout] --> src/execv.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::convert::AsRef; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `AsRef` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `parse_line` [INFO] [stdout] --> src/lock/mod.rs:8:40 [INFO] [stdout] | [INFO] [stdout] 8 | pub use parse::{parse, parse_git_line, parse_line, parse_simple_line}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tempdir` is imported redundantly [INFO] [stdout] --> src/operations/init.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | use tempdir; [INFO] [stdout] | ^^^^^^^ the item `tempdir` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `dmenv` is imported redundantly [INFO] [stdout] --> tests/helpers/mod.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use dmenv; [INFO] [stdout] | ^^^^^ the item `dmenv` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings 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 2.76s [INFO] running `Command { std: "docker" "inspect" "a0f46803348c7a2ad3fa680e79e319e3bb28f7b2c233af6f36eb098bc6293a58", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0f46803348c7a2ad3fa680e79e319e3bb28f7b2c233af6f36eb098bc6293a58", kill_on_drop: false }` [INFO] [stdout] a0f46803348c7a2ad3fa680e79e319e3bb28f7b2c233af6f36eb098bc6293a58 [INFO] checking dmenv-0.20.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate dmenv 0.20.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate dmenv 0.20.1 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 dmenv 0.20.1 [INFO] finished tweaking crates.io crate dmenv 0.20.1 [INFO] tweaked toml for crates.io crate dmenv 0.20.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate dmenv 0.20.1 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] c8576a9f997e51981a60fea35ecefb4e2f8bb9f0e3dbe2b3129d4187bc750eea [INFO] running `Command { std: "docker" "start" "-a" "c8576a9f997e51981a60fea35ecefb4e2f8bb9f0e3dbe2b3129d4187bc750eea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8576a9f997e51981a60fea35ecefb4e2f8bb9f0e3dbe2b3129d4187bc750eea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8576a9f997e51981a60fea35ecefb4e2f8bb9f0e3dbe2b3129d4187bc750eea", kill_on_drop: false }` [INFO] [stdout] c8576a9f997e51981a60fea35ecefb4e2f8bb9f0e3dbe2b3129d4187bc750eea [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] 5de6c3aa624794a998108c05c88faf1adee62f252295dfb3929c381b123c936b [INFO] running `Command { std: "docker" "start" "-a" "5de6c3aa624794a998108c05c88faf1adee62f252295dfb3929c381b123c936b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling cc v1.0.46 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling winapi v0.3.8 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling cgmath v0.16.1 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking approx v0.1.1 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rgb v0.8.14 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking same-file v1.0.5 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking app_dirs v1.2.1 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking walkdir v2.2.9 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking bstr v0.2.8 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Checking backtrace v0.3.40 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Checking which v2.0.1 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.1/src/exec.rs:838:13 [INFO] [stdout] | [INFO] [stdout] 838 | / match dfa::Fsm::reverse( [INFO] [stdout] 839 | | &self.ro.dfa_reverse, [INFO] [stdout] 840 | | self.cache.value(), [INFO] [stdout] 841 | | false, [INFO] [stdout] ... | [INFO] [stdout] 852 | | Quit => return Some(Quit), [INFO] [stdout] 853 | | }; [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" "5de6c3aa624794a998108c05c88faf1adee62f252295dfb3929c381b123c936b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5de6c3aa624794a998108c05c88faf1adee62f252295dfb3929c381b123c936b", kill_on_drop: false }` [INFO] [stdout] 5de6c3aa624794a998108c05c88faf1adee62f252295dfb3929c381b123c936b