[INFO] cloning repository https://github.com/monjohn/prufen [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/monjohn/prufen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonjohn%2Fprufen", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonjohn%2Fprufen'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dd8402a6b51cb53a3ad6827fd9944c5894f647a8 [INFO] checking monjohn/prufen against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonjohn%2Fprufen" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/monjohn/prufen 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/monjohn/prufen [INFO] finished tweaking git repo https://github.com/monjohn/prufen [INFO] tweaked toml for git repo https://github.com/monjohn/prufen written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/monjohn/prufen 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 syn v0.11.11 [INFO] [stderr] Downloaded serde v1.0.27 [INFO] [stderr] Downloaded serde_derive_internals v0.19.0 [INFO] [stderr] Downloaded ansi_term v0.10.2 [INFO] [stderr] Downloaded bitflags v1.0.1 [INFO] [stderr] Downloaded csv-core v0.1.4 [INFO] [stderr] Downloaded getopts v0.2.17 [INFO] [stderr] Downloaded aho-corasick v0.6.4 [INFO] [stderr] Downloaded rand v0.3.22 [INFO] [stderr] Downloaded rand v0.4.2 [INFO] [stderr] Downloaded lazy_static v1.0.0 [INFO] [stderr] Downloaded regex-syntax v0.4.2 [INFO] [stderr] Downloaded regex v0.2.6 [INFO] [stderr] Downloaded libc v0.2.36 [INFO] [stderr] Downloaded thread_local v0.3.5 [INFO] [stderr] Downloaded memchr v2.0.1 [INFO] [stderr] Downloaded csv v1.0.0-beta.5 [INFO] [stderr] Downloaded winapi v0.3.4 [INFO] [stderr] Downloaded utf8-ranges v1.0.0 [INFO] [stderr] Downloaded unicode-xid v0.0.4 [INFO] [stderr] Downloaded quote v0.3.15 [INFO] [stderr] Downloaded synom v0.11.3 [INFO] [stderr] Downloaded serde_derive v1.0.27 [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] d2494ad482021812c48f4f0d3ac1f69505cb00c7cb69ea724564de8dcf48d17d [INFO] running `Command { std: "docker" "start" "-a" "d2494ad482021812c48f4f0d3ac1f69505cb00c7cb69ea724564de8dcf48d17d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d2494ad482021812c48f4f0d3ac1f69505cb00c7cb69ea724564de8dcf48d17d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2494ad482021812c48f4f0d3ac1f69505cb00c7cb69ea724564de8dcf48d17d", kill_on_drop: false }` [INFO] [stdout] d2494ad482021812c48f4f0d3ac1f69505cb00c7cb69ea724564de8dcf48d17d [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] d8f24f98752bf45113e9070212a5b56e4d2aecad630f51e58771e53b2119709b [INFO] running `Command { std: "docker" "start" "-a" "d8f24f98752bf45113e9070212a5b56e4d2aecad630f51e58771e53b2119709b", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.36 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking serde v1.0.27 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking regex-syntax v0.4.2 [INFO] [stderr] Checking ansi_term v0.10.2 [INFO] [stderr] Checking getopts v0.2.17 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking csv-core v0.1.4 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking regex v0.2.6 [INFO] [stderr] Checking rand v0.3.22 [INFO] [stderr] Compiling serde_derive_internals v0.19.0 [INFO] [stderr] Compiling serde_derive v1.0.27 [INFO] [stderr] Checking csv v1.0.0-beta.5 [INFO] [stderr] Checking prufen v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:45:45 [INFO] [stdout] | [INFO] [stdout] 45 | fn read_file() -> Result, Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 45 | fn read_file() -> Result, Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:45:45 [INFO] [stdout] | [INFO] [stdout] 45 | fn read_file() -> Result, Box> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 45 | fn read_file() -> Result, Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning 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 2.46s [INFO] running `Command { std: "docker" "inspect" "d8f24f98752bf45113e9070212a5b56e4d2aecad630f51e58771e53b2119709b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8f24f98752bf45113e9070212a5b56e4d2aecad630f51e58771e53b2119709b", kill_on_drop: false }` [INFO] [stdout] d8f24f98752bf45113e9070212a5b56e4d2aecad630f51e58771e53b2119709b [INFO] checking monjohn/prufen against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonjohn%2Fprufen" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/monjohn/prufen 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/monjohn/prufen [INFO] finished tweaking git repo https://github.com/monjohn/prufen [INFO] tweaked toml for git repo https://github.com/monjohn/prufen written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/monjohn/prufen 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] 94459d40064a3df4c73388e4c9a9ee4bc0acdafcf7ce6bbd99358925930853cc [INFO] running `Command { std: "docker" "start" "-a" "94459d40064a3df4c73388e4c9a9ee4bc0acdafcf7ce6bbd99358925930853cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "94459d40064a3df4c73388e4c9a9ee4bc0acdafcf7ce6bbd99358925930853cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "94459d40064a3df4c73388e4c9a9ee4bc0acdafcf7ce6bbd99358925930853cc", kill_on_drop: false }` [INFO] [stdout] 94459d40064a3df4c73388e4c9a9ee4bc0acdafcf7ce6bbd99358925930853cc [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] c6216f1c7403c3bdd8d841943358da662974eadbddb06bf5d37866f6a1d64dc4 [INFO] running `Command { std: "docker" "start" "-a" "c6216f1c7403c3bdd8d841943358da662974eadbddb06bf5d37866f6a1d64dc4", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.36 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking regex-syntax v0.4.2 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking serde v1.0.27 [INFO] [stderr] Checking getopts v0.2.17 [INFO] [stderr] Checking ansi_term v0.10.2 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking csv-core v0.1.4 [INFO] [stderr] Checking regex v0.2.6 [INFO] [stderr] Checking rand v0.3.22 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-0.2.6/src/exec.rs:742:13 [INFO] [stdout] | [INFO] [stdout] 742 | / match dfa::Fsm::reverse( [INFO] [stdout] 743 | | &self.ro.dfa_reverse, [INFO] [stdout] 744 | | self.cache, [INFO] [stdout] 745 | | false, [INFO] [stdout] ... | [INFO] [stdout] 752 | | Quit => return Some(Quit), [INFO] [stdout] 753 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde_derive_internals v0.19.0 [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" "c6216f1c7403c3bdd8d841943358da662974eadbddb06bf5d37866f6a1d64dc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6216f1c7403c3bdd8d841943358da662974eadbddb06bf5d37866f6a1d64dc4", kill_on_drop: false }` [INFO] [stdout] c6216f1c7403c3bdd8d841943358da662974eadbddb06bf5d37866f6a1d64dc4