[INFO] fetching crate quickcheck 1.0.3... [INFO] checking quickcheck-1.0.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate quickcheck 1.0.3 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate quickcheck 1.0.3 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 quickcheck 1.0.3 [INFO] finished tweaking crates.io crate quickcheck 1.0.3 [INFO] tweaked toml for crates.io crate quickcheck 1.0.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate quickcheck 1.0.3 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 rand v0.8.0 [INFO] [stderr] Downloaded getrandom v0.2.0 [INFO] [stderr] Downloaded thread_local v1.0.1 [INFO] [stderr] Downloaded rand_core v0.6.0 [INFO] [stderr] Downloaded log v0.4.11 [INFO] [stderr] Downloaded memchr v2.3.4 [INFO] [stderr] Downloaded env_logger v0.8.2 [INFO] [stderr] Downloaded aho-corasick v0.7.15 [INFO] [stderr] Downloaded regex v1.4.2 [INFO] [stderr] Downloaded regex-syntax v0.6.21 [INFO] [stderr] Downloaded libc v0.2.81 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6643fcabde03a3b88aa64dafcba54aab774222c15fc5df74c07fcd5737a2d004 [INFO] running `Command { std: "docker" "start" "-a" "6643fcabde03a3b88aa64dafcba54aab774222c15fc5df74c07fcd5737a2d004", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6643fcabde03a3b88aa64dafcba54aab774222c15fc5df74c07fcd5737a2d004", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6643fcabde03a3b88aa64dafcba54aab774222c15fc5df74c07fcd5737a2d004", kill_on_drop: false }` [INFO] [stdout] 6643fcabde03a3b88aa64dafcba54aab774222c15fc5df74c07fcd5737a2d004 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2c5d99dce0ea1f075e4ccfd567b6e3de22aeac7509e8d374ccc919570fafe949 [INFO] running `Command { std: "docker" "start" "-a" "2c5d99dce0ea1f075e4ccfd567b6e3de22aeac7509e8d374ccc919570fafe949", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking rand_core v0.6.0 [INFO] [stderr] Checking rand v0.8.0 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Checking env_logger v0.8.2 [INFO] [stderr] Checking quickcheck v1.0.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/arbitrary.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | use rand::{self, Rng, SeedableRng}; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/arbitrary.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | use rand::{self, Rng, SeedableRng}; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/tests.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Ord` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `AShow` is never used [INFO] [stdout] --> src/tester.rs:416:7 [INFO] [stdout] | [INFO] [stdout] 416 | trait AShow: Arbitrary + Debug {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/tester.rs:165:35 [INFO] [stdout] | [INFO] [stdout] 165 | Err(result) => panic!(result.failed_msg()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` 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] 165 | Err(result) => panic!("{}", result.failed_msg()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `AShow` is never used [INFO] [stdout] --> src/tester.rs:416:7 [INFO] [stdout] | [INFO] [stdout] 416 | trait AShow: Arbitrary + Debug {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/arbitrary.rs:1368:32 [INFO] [stdout] | [INFO] [stdout] 1368 | panic!(format!( [INFO] [stdout] | ________________________________^ [INFO] [stdout] 1369 | | "Element {:?} was not found \ [INFO] [stdout] 1370 | | in shrink results {:?}", [INFO] [stdout] 1371 | | n, shrunk [INFO] [stdout] 1372 | | )); [INFO] [stdout] | |_________________________^ [INFO] [stdout] ... [INFO] [stdout] 1381 | define_float_eq!(f32); [INFO] [stdout] | --------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] = note: this warning originates in the macro `define_float_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 1368 ~ panic!( [INFO] [stdout] 1369 | "Element {:?} was not found \ [INFO] [stdout] 1370 | in shrink results {:?}", [INFO] [stdout] 1371 | n, shrunk [INFO] [stdout] 1372 ~ ); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/arbitrary.rs:1368:32 [INFO] [stdout] | [INFO] [stdout] 1368 | panic!(format!( [INFO] [stdout] | ________________________________^ [INFO] [stdout] 1369 | | "Element {:?} was not found \ [INFO] [stdout] 1370 | | in shrink results {:?}", [INFO] [stdout] 1371 | | n, shrunk [INFO] [stdout] 1372 | | )); [INFO] [stdout] | |_________________________^ [INFO] [stdout] ... [INFO] [stdout] 1393 | define_float_eq!(f64); [INFO] [stdout] | --------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: this warning originates in the macro `define_float_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 1368 ~ panic!( [INFO] [stdout] 1369 | "Element {:?} was not found \ [INFO] [stdout] 1370 | in shrink results {:?}", [INFO] [stdout] 1371 | n, shrunk [INFO] [stdout] 1372 ~ ); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/tester.rs:165:35 [INFO] [stdout] | [INFO] [stdout] 165 | Err(result) => panic!(result.failed_msg()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 165 | Err(result) => panic!("{}", result.failed_msg()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.62s [INFO] running `Command { std: "docker" "inspect" "2c5d99dce0ea1f075e4ccfd567b6e3de22aeac7509e8d374ccc919570fafe949", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c5d99dce0ea1f075e4ccfd567b6e3de22aeac7509e8d374ccc919570fafe949", kill_on_drop: false }` [INFO] [stdout] 2c5d99dce0ea1f075e4ccfd567b6e3de22aeac7509e8d374ccc919570fafe949 [INFO] checking quickcheck-1.0.3 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate quickcheck 1.0.3 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate quickcheck 1.0.3 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 quickcheck 1.0.3 [INFO] finished tweaking crates.io crate quickcheck 1.0.3 [INFO] tweaked toml for crates.io crate quickcheck 1.0.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate quickcheck 1.0.3 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4e105d3b82f38bc6554d32737b00cdf008dec7f245ecfc8377451ac8d0094331 [INFO] running `Command { std: "docker" "start" "-a" "4e105d3b82f38bc6554d32737b00cdf008dec7f245ecfc8377451ac8d0094331", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4e105d3b82f38bc6554d32737b00cdf008dec7f245ecfc8377451ac8d0094331", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e105d3b82f38bc6554d32737b00cdf008dec7f245ecfc8377451ac8d0094331", kill_on_drop: false }` [INFO] [stdout] 4e105d3b82f38bc6554d32737b00cdf008dec7f245ecfc8377451ac8d0094331 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 651ec8e77b1733cf2ea33f9bc54f10527c600f9a25fc75d9efe0e575d316f489 [INFO] running `Command { std: "docker" "start" "-a" "651ec8e77b1733cf2ea33f9bc54f10527c600f9a25fc75d9efe0e575d316f489", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking rand_core v0.6.0 [INFO] [stderr] Checking rand v0.8.0 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.2/src/exec.rs:836:13 [INFO] [stdout] | [INFO] [stdout] 836 | / match dfa::Fsm::reverse( [INFO] [stdout] 837 | | &self.ro.dfa_reverse, [INFO] [stdout] 838 | | self.cache.value(), [INFO] [stdout] 839 | | false, [INFO] [stdout] ... | [INFO] [stdout] 850 | | Quit => return Some(Quit), [INFO] [stdout] 851 | | }; [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" "651ec8e77b1733cf2ea33f9bc54f10527c600f9a25fc75d9efe0e575d316f489", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "651ec8e77b1733cf2ea33f9bc54f10527c600f9a25fc75d9efe0e575d316f489", kill_on_drop: false }` [INFO] [stdout] 651ec8e77b1733cf2ea33f9bc54f10527c600f9a25fc75d9efe0e575d316f489