[INFO] fetching crate json5format 0.2.6... [INFO] checking json5format-0.2.6 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate json5format 0.2.6 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate json5format 0.2.6 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 json5format 0.2.6 [INFO] finished tweaking crates.io crate json5format 0.2.6 [INFO] tweaked toml for crates.io crate json5format 0.2.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate json5format 0.2.6 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bit-set v0.5.1 [INFO] [stderr] Downloaded hermit-abi v0.1.11 [INFO] [stderr] Downloaded anyhow v1.0.28 [INFO] [stderr] Downloaded bit-vec v0.5.1 [INFO] [stderr] Downloaded libc v0.2.69 [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] 2ce8dd2755fe3173ea5c5b7f3bc4c42f76195dbde51d52b9ab785c58eb85f186 [INFO] running `Command { std: "docker" "start" "-a" "2ce8dd2755fe3173ea5c5b7f3bc4c42f76195dbde51d52b9ab785c58eb85f186", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2ce8dd2755fe3173ea5c5b7f3bc4c42f76195dbde51d52b9ab785c58eb85f186", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ce8dd2755fe3173ea5c5b7f3bc4c42f76195dbde51d52b9ab785c58eb85f186", kill_on_drop: false }` [INFO] [stdout] 2ce8dd2755fe3173ea5c5b7f3bc4c42f76195dbde51d52b9ab785c58eb85f186 [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] a6b4ebe274d0a254497a522cf9405d927bc845ee140887beec10568b47349097 [INFO] running `Command { std: "docker" "start" "-a" "a6b4ebe274d0a254497a522cf9405d927bc845ee140887beec10568b47349097", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.11 [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] Compiling heck v0.3.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling anyhow v1.0.28 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking bit-vec v0.5.1 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking bit-set v0.5.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking rusty-fork v0.2.2 [INFO] [stderr] Checking proptest v0.9.6 [INFO] [stderr] Checking json5format v0.2.6 (/opt/rustwide/workdir) [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stdout] warning: methods `contained_comments` and `has_pending_comments` are never used [INFO] [stdout] --> src/content.rs:447:8 [INFO] [stdout] | [INFO] [stdout] 431 | pub(crate) trait Container { [INFO] [stdout] | --------- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 447 | fn contained_comments(&self) -> &ContainedComments; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 477 | fn has_pending_comments(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Json5Format` is imported redundantly [INFO] [stdout] --> tests/lib.rs:7:25 [INFO] [stdout] | [INFO] [stdout] 7 | crate::{test_error, Json5Format}, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 8 | json5format::*, [INFO] [stdout] | -------------- the item `Json5Format` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `anyhow` is imported redundantly [INFO] [stdout] --> examples/formatjson5.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 32 | use anyhow; [INFO] [stdout] | ^^^^^^ the item `anyhow` 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 `test_error` is imported redundantly [INFO] [stdout] --> src/parser.rs:948:20 [INFO] [stdout] | [INFO] [stdout] 948 | use {super::*, crate::test_error, proptest::prelude::*}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/error.rs:129:1 [INFO] [stdout] | [INFO] [stdout] 129 | / macro_rules! test_error { [INFO] [stdout] 130 | | ($err:expr) => { [INFO] [stdout] 131 | | Error::test_failure( [INFO] [stdout] 132 | | Some(Location::new(Some(file!().to_string()), line!() as usize, column!() as usize)), [INFO] [stdout] ... | [INFO] [stdout] 135 | | }; [INFO] [stdout] 136 | | } [INFO] [stdout] | |_- the item `test_error` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [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] [stdout] warning: methods `contained_comments` and `has_pending_comments` are never used [INFO] [stdout] --> src/content.rs:447:8 [INFO] [stdout] | [INFO] [stdout] 431 | pub(crate) trait Container { [INFO] [stdout] | --------- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 447 | fn contained_comments(&self) -> &ContainedComments; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 477 | fn has_pending_comments(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.66s [INFO] running `Command { std: "docker" "inspect" "a6b4ebe274d0a254497a522cf9405d927bc845ee140887beec10568b47349097", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6b4ebe274d0a254497a522cf9405d927bc845ee140887beec10568b47349097", kill_on_drop: false }` [INFO] [stdout] a6b4ebe274d0a254497a522cf9405d927bc845ee140887beec10568b47349097 [INFO] checking json5format-0.2.6 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate json5format 0.2.6 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate json5format 0.2.6 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 json5format 0.2.6 [INFO] finished tweaking crates.io crate json5format 0.2.6 [INFO] tweaked toml for crates.io crate json5format 0.2.6 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate json5format 0.2.6 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] [stderr] Blocking waiting for file lock on package cache [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] 8fb33eec2d35ec829985bcdc25263c2d41508bac370fe97474c2e81d0be6c18f [INFO] running `Command { std: "docker" "start" "-a" "8fb33eec2d35ec829985bcdc25263c2d41508bac370fe97474c2e81d0be6c18f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8fb33eec2d35ec829985bcdc25263c2d41508bac370fe97474c2e81d0be6c18f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8fb33eec2d35ec829985bcdc25263c2d41508bac370fe97474c2e81d0be6c18f", kill_on_drop: false }` [INFO] [stdout] 8fb33eec2d35ec829985bcdc25263c2d41508bac370fe97474c2e81d0be6c18f [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] a8a43bb5b412d4962c126ddae3ee84f0d75fa185874dd7de52de35f83ecc3b1f [INFO] running `Command { std: "docker" "start" "-a" "a8a43bb5b412d4962c126ddae3ee84f0d75fa185874dd7de52de35f83ecc3b1f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Compiling num-traits v0.2.11 [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 remove_dir_all v0.5.2 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling anyhow v1.0.28 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking bit-vec v0.5.1 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking bit-set v0.5.1 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking rusty-fork v0.2.2 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.6/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] [stderr] Checking proptest v0.9.6 [INFO] [stderr] Compiling structopt-derive v0.2.18 [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" "a8a43bb5b412d4962c126ddae3ee84f0d75fa185874dd7de52de35f83ecc3b1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8a43bb5b412d4962c126ddae3ee84f0d75fa185874dd7de52de35f83ecc3b1f", kill_on_drop: false }` [INFO] [stdout] a8a43bb5b412d4962c126ddae3ee84f0d75fa185874dd7de52de35f83ecc3b1f