[INFO] updating cached repository https://github.com/gnuvince/vardel [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 289e22b73869e5ee453f59c34d76b390ab33dc91 [INFO] checking gnuvince/vardel against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgnuvince%2Fvardel" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gnuvince/vardel on toolchain ba72b15666b2491415aec703a02c2364fe5e2790 [INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/gnuvince/vardel [INFO] finished tweaking git repo https://github.com/gnuvince/vardel [INFO] tweaked toml for git repo https://github.com/gnuvince/vardel written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/gnuvince/vardel already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] eb53a251c4c4960a6aca708bf9715f8b30134064afea381bc18e4f05dce8b5cc [INFO] running `"docker" "start" "-a" "eb53a251c4c4960a6aca708bf9715f8b30134064afea381bc18e4f05dce8b5cc"` [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking assert_matches v1.3.0 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking tempfile v3.0.7 [INFO] [stderr] Checking rusty-fork v0.2.2 [INFO] [stderr] Checking proptest v0.9.2 [INFO] [stderr] Checking vardel v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/lib.rs:88:1 [INFO] [stderr] | [INFO] [stderr] 88 | /// Decodes a slice of bytes into a vector of u64s, `v`. [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macros [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/lib.rs:89:1 [INFO] [stderr] | [INFO] [stderr] 89 | /// Returns `Some(v)` if all digits could be successfully decoded, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macros [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/lib.rs:90:1 [INFO] [stderr] | [INFO] [stderr] 90 | /// and `None` if one digit was ill-formed. [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macros [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BufRead`, `self` [INFO] [stderr] --> src/main.rs:2:15 [INFO] [stderr] | [INFO] [stderr] 2 | use std::io::{self, BufRead}; [INFO] [stderr] | ^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Duration`, `Instant` [INFO] [stderr] --> src/main.rs:3:17 [INFO] [stderr] | [INFO] [stderr] 3 | use std::time::{Duration, Instant}; [INFO] [stderr] | ^^^^^^^^ ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `binary` [INFO] [stderr] --> src/main.rs:5:4 [INFO] [stderr] | [INFO] [stderr] 5 | fn binary(v: &[u8], n: usize) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] error[E0495]: cannot infer an appropriate lifetime for lifetime parameter `'a` due to conflicting requirements [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proptest-0.9.2/src/arbitrary/_core/iter.rs:44:23 [INFO] [stderr] | [INFO] [stderr] 44 | base.prop_map(Iterator::cloned).boxed() [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: first, the lifetime cannot outlive the lifetime `'a` as defined on the impl at 35:6... [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proptest-0.9.2/src/arbitrary/_core/iter.rs:35:6 [INFO] [stderr] | [INFO] [stderr] 35 | impl<'a, T: 'static + Clone, A: fmt::Debug + 'static + Iterator> [INFO] [stderr] | ^^ [INFO] [stderr] note: ...so that the types are compatible [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proptest-0.9.2/src/arbitrary/_core/iter.rs:44:23 [INFO] [stderr] | [INFO] [stderr] 44 | base.prop_map(Iterator::cloned).boxed() [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] = note: expected `&'a T` [INFO] [stderr] found `&T` [INFO] [stderr] = note: but, the lifetime must be valid for the static lifetime... [INFO] [stderr] note: ...so that the type `strategy::map::Map core::iter::Cloned {::cloned::<'_, T>}>` will meet its required lifetime bounds [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proptest-0.9.2/src/arbitrary/_core/iter.rs:44:41 [INFO] [stderr] | [INFO] [stderr] 44 | base.prop_map(Iterator::cloned).boxed() [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0495`. [INFO] [stderr] error: could not compile `proptest`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "eb53a251c4c4960a6aca708bf9715f8b30134064afea381bc18e4f05dce8b5cc"` [INFO] running `"docker" "rm" "-f" "eb53a251c4c4960a6aca708bf9715f8b30134064afea381bc18e4f05dce8b5cc"` [INFO] [stdout] eb53a251c4c4960a6aca708bf9715f8b30134064afea381bc18e4f05dce8b5cc