[INFO] fetching crate cpm-rs 0.1.6... [INFO] checking cpm-rs-0.1.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate cpm-rs 0.1.6 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate cpm-rs 0.1.6 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 cpm-rs 0.1.6 [INFO] finished tweaking crates.io crate cpm-rs 0.1.6 [INFO] tweaked toml for crates.io crate cpm-rs 0.1.6 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate cpm-rs 0.1.6 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f89e65305690cf8a2a9a02012f5fdd6a35b1e681f56280980651ee8a6f2b90f7 [INFO] running `Command { std: "docker" "start" "-a" "f89e65305690cf8a2a9a02012f5fdd6a35b1e681f56280980651ee8a6f2b90f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f89e65305690cf8a2a9a02012f5fdd6a35b1e681f56280980651ee8a6f2b90f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f89e65305690cf8a2a9a02012f5fdd6a35b1e681f56280980651ee8a6f2b90f7", kill_on_drop: false }` [INFO] [stdout] f89e65305690cf8a2a9a02012f5fdd6a35b1e681f56280980651ee8a6f2b90f7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a61a06fceed3946c72fca056bf89385edebb01dce7f84ffc41b1b2d8f0c5a236 [INFO] running `Command { std: "docker" "start" "-a" "a61a06fceed3946c72fca056bf89385edebb01dce7f84ffc41b1b2d8f0c5a236", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking memchr v2.4.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking env_logger v0.9.0 [INFO] [stderr] Checking cpm-rs v0.1.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tests.rs:12:3 [INFO] [stdout] | [INFO] [stdout] 12 | / scheduler.add_task(CustomTask::new( [INFO] [stdout] 13 | | "Task_A".to_string() [INFO] [stdout] 14 | | , 1 [INFO] [stdout] 15 | | , vec!{} [INFO] [stdout] 16 | | )); [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 12 | let _ = scheduler.add_task(CustomTask::new( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tests.rs:17:3 [INFO] [stdout] | [INFO] [stdout] 17 | / scheduler.add_task(CustomTask::new( [INFO] [stdout] 18 | | "Sidetask_B".to_string() [INFO] [stdout] 19 | | , 3 [INFO] [stdout] 20 | | , vec!{"Task_A".to_string()} [INFO] [stdout] 21 | | )); [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 17 | let _ = scheduler.add_task(CustomTask::new( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tests.rs:22:3 [INFO] [stdout] | [INFO] [stdout] 22 | / scheduler.add_task(CustomTask::new( [INFO] [stdout] 23 | | "Sidetask_C".to_string() [INFO] [stdout] 24 | | , 2 [INFO] [stdout] 25 | | , vec!{"Task_B".to_string()} [INFO] [stdout] 26 | | )); [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = scheduler.add_task(CustomTask::new( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tests.rs:27:3 [INFO] [stdout] | [INFO] [stdout] 27 | / scheduler.add_task(CustomTask::new( [INFO] [stdout] 28 | | "Finish".to_string() [INFO] [stdout] 29 | | , 1 [INFO] [stdout] 30 | | , vec!{"Sidetask_B".to_string(), "Sidetask_C".to_string()} [INFO] [stdout] 31 | | )); [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 27 | let _ = scheduler.add_task(CustomTask::new( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.60s [INFO] running `Command { std: "docker" "inspect" "a61a06fceed3946c72fca056bf89385edebb01dce7f84ffc41b1b2d8f0c5a236", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a61a06fceed3946c72fca056bf89385edebb01dce7f84ffc41b1b2d8f0c5a236", kill_on_drop: false }` [INFO] [stdout] a61a06fceed3946c72fca056bf89385edebb01dce7f84ffc41b1b2d8f0c5a236 [INFO] checking cpm-rs-0.1.6 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate cpm-rs 0.1.6 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate cpm-rs 0.1.6 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 cpm-rs 0.1.6 [INFO] finished tweaking crates.io crate cpm-rs 0.1.6 [INFO] tweaked toml for crates.io crate cpm-rs 0.1.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate cpm-rs 0.1.6 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] efbbb73c2cf72f9aaa99e3c9afac8be889c9965ceb6a2cb2601a544ea204f144 [INFO] running `Command { std: "docker" "start" "-a" "efbbb73c2cf72f9aaa99e3c9afac8be889c9965ceb6a2cb2601a544ea204f144", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "efbbb73c2cf72f9aaa99e3c9afac8be889c9965ceb6a2cb2601a544ea204f144", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "efbbb73c2cf72f9aaa99e3c9afac8be889c9965ceb6a2cb2601a544ea204f144", kill_on_drop: false }` [INFO] [stdout] efbbb73c2cf72f9aaa99e3c9afac8be889c9965ceb6a2cb2601a544ea204f144 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 87899349641acb3d5683bb0ecf1e675326ebde39c8180fe2ac0921c40dbdc168 [INFO] running `Command { std: "docker" "start" "-a" "87899349641acb3d5683bb0ecf1e675326ebde39c8180fe2ac0921c40dbdc168", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Checking memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking atty v0.2.14 [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" "87899349641acb3d5683bb0ecf1e675326ebde39c8180fe2ac0921c40dbdc168", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87899349641acb3d5683bb0ecf1e675326ebde39c8180fe2ac0921c40dbdc168", kill_on_drop: false }` [INFO] [stdout] 87899349641acb3d5683bb0ecf1e675326ebde39c8180fe2ac0921c40dbdc168