[INFO] fetching crate strerror 0.6.3...
[INFO] testing strerror-0.6.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate strerror 0.6.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate strerror 0.6.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strerror 0.6.3
[INFO] finished tweaking crates.io crate strerror 0.6.3
[INFO] tweaked toml for crates.io crate strerror 0.6.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b55dc163d88722169975c10b7e6ac97429f4e5b29a6453430a03f134ec9f1395
[INFO] running `Command { std: "docker" "start" "-a" "b55dc163d88722169975c10b7e6ac97429f4e5b29a6453430a03f134ec9f1395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b55dc163d88722169975c10b7e6ac97429f4e5b29a6453430a03f134ec9f1395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b55dc163d88722169975c10b7e6ac97429f4e5b29a6453430a03f134ec9f1395", kill_on_drop: false }`
[INFO] [stdout] b55dc163d88722169975c10b7e6ac97429f4e5b29a6453430a03f134ec9f1395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fea20817065ae0a69a4bf1776ea0a59ac933102da58bd4f8ced74f4ed4cf07a2
[INFO] running `Command { std: "docker" "start" "-a" "fea20817065ae0a69a4bf1776ea0a59ac933102da58bd4f8ced74f4ed4cf07a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling strerror v0.6.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `std::alloc::LayoutErr`: Name does not follow std convention, use LayoutError
[INFO] [stdout]    --> src/lib.rs:631:24
[INFO] [stdout]     |
[INFO] [stdout] 631 | impl_from!(std::alloc::LayoutErr);
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `std::alloc::LayoutErr`: Name does not follow std convention, use LayoutError
[INFO] [stdout]    --> src/lib.rs:631:24
[INFO] [stdout]     |
[INFO] [stdout] 631 | impl_from!(std::alloc::LayoutErr);
[INFO] [stdout]     |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for borrow expression due to conflicting requirements
[INFO] [stdout]    --> src/lib.rs:369:15
[INFO] [stdout]     |
[INFO] [stdout] 369 |         match &self.next {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime defined on the method body at 368:13...
[INFO] [stdout]    --> src/lib.rs:368:13
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn next(&mut self) -> Option<Self::Item> {
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/lib.rs:369:15
[INFO] [stdout]     |
[INFO] [stdout] 369 |         match &self.next {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] note: but, the lifetime must be valid for the lifetime `'a` as defined on the impl at 365:6...
[INFO] [stdout]    --> src/lib.rs:365:6
[INFO] [stdout]     |
[INFO] [stdout] 365 | impl<'a> Iterator for Iter<'a> {
[INFO] [stdout]     |      ^^
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/lib.rs:373:29
[INFO] [stdout]     |
[INFO] [stdout] 373 |                 self.next = e.source();
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout]     = note: expected `Option<&'a (dyn std::error::Error + 'static)>`
[INFO] [stdout]                found `Option<&(dyn std::error::Error + 'static)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0495`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `strerror` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "fea20817065ae0a69a4bf1776ea0a59ac933102da58bd4f8ced74f4ed4cf07a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fea20817065ae0a69a4bf1776ea0a59ac933102da58bd4f8ced74f4ed4cf07a2", kill_on_drop: false }`
[INFO] [stdout] fea20817065ae0a69a4bf1776ea0a59ac933102da58bd4f8ced74f4ed4cf07a2