[INFO] fetching crate egg 0.6.0...
[INFO] checking egg-0.6.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate egg 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate egg 0.6.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate egg 0.6.0
[INFO] finished tweaking crates.io crate egg 0.6.0
[INFO] tweaked toml for crates.io crate egg 0.6.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symbolic_expressions v5.0.3
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d14dc69d6959fb49cc33a6e277fd245ffd13f3b65d403dce3e391139d7874713
[INFO] running `Command { std: "docker" "start" "-a" "d14dc69d6959fb49cc33a6e277fd245ffd13f3b65d403dce3e391139d7874713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d14dc69d6959fb49cc33a6e277fd245ffd13f3b65d403dce3e391139d7874713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14dc69d6959fb49cc33a6e277fd245ffd13f3b65d403dce3e391139d7874713", kill_on_drop: false }`
[INFO] [stdout] d14dc69d6959fb49cc33a6e277fd245ffd13f3b65d403dce3e391139d7874713
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 374d945315795ecebf7a5f68d9d6b9cff7822f9d0a6bc511fd84fd1d851d6af1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "374d945315795ecebf7a5f68d9d6b9cff7822f9d0a6bc511fd84fd1d851d6af1", kill_on_drop: false }`
[INFO] [stderr]     Checking symbolic_expressions v5.0.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking egg v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rewrite.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if let Some(pat) = Any::downcast_ref::<Pattern<L>>(&self.searcher) {
[INFO] [stdout]    |                            ^^^ help: use `dyn`: `<dyn Any>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rewrite.rs:56:28
[INFO] [stdout]    |
[INFO] [stdout] 56 |         if let Some(pat) = Any::downcast_ref::<Pattern<L>>(&self.applier) {
[INFO] [stdout]    |                            ^^^ help: use `dyn`: `<dyn Any>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rewrite.rs:50:28
[INFO] [stdout]    |
[INFO] [stdout] 50 |         if let Some(pat) = Any::downcast_ref::<Pattern<L>>(&self.searcher) {
[INFO] [stdout]    |                            ^^^ help: use `dyn`: `<dyn Any>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rewrite.rs:56:28
[INFO] [stdout]    |
[INFO] [stdout] 56 |         if let Some(pat) = Any::downcast_ref::<Pattern<L>>(&self.applier) {
[INFO] [stdout]    |                            ^^^ help: use `dyn`: `<dyn Any>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.01s
[INFO] running `Command { std: "docker" "inspect" "374d945315795ecebf7a5f68d9d6b9cff7822f9d0a6bc511fd84fd1d851d6af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374d945315795ecebf7a5f68d9d6b9cff7822f9d0a6bc511fd84fd1d851d6af1", kill_on_drop: false }`
[INFO] [stdout] 374d945315795ecebf7a5f68d9d6b9cff7822f9d0a6bc511fd84fd1d851d6af1