[INFO] cloning repository https://github.com/acfoltzer/exported-symbol-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acfoltzer/exported-symbol-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facfoltzer%2Fexported-symbol-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facfoltzer%2Fexported-symbol-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13ee4d468beea510847d621e16ae644056f3fe26
[INFO] checking acfoltzer/exported-symbol-example against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facfoltzer%2Fexported-symbol-example" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/acfoltzer/exported-symbol-example on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/acfoltzer/exported-symbol-example
[INFO] finished tweaking git repo https://github.com/acfoltzer/exported-symbol-example
[INFO] tweaked toml for git repo https://github.com/acfoltzer/exported-symbol-example written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/acfoltzer/exported-symbol-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 617b35b56bb729566f0667e5ad6cec4aeb79dd5981f27c06bbf89f2c173c20bb
[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" "617b35b56bb729566f0667e5ad6cec4aeb79dd5981f27c06bbf89f2c173c20bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "617b35b56bb729566f0667e5ad6cec4aeb79dd5981f27c06bbf89f2c173c20bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "617b35b56bb729566f0667e5ad6cec4aeb79dd5981f27c06bbf89f2c173c20bb", kill_on_drop: false }`
[INFO] [stdout] 617b35b56bb729566f0667e5ad6cec4aeb79dd5981f27c06bbf89f2c173c20bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a95bf8f847e107280eb2e169f6d4f875eb655e17a56a66d8aafbdd4104452514
[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" "a95bf8f847e107280eb2e169f6d4f875eb655e17a56a66d8aafbdd4104452514", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]     Checking module v0.1.0 (/opt/rustwide/workdir/module)
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking lib4 v0.1.0 (/opt/rustwide/workdir/lib4)
[INFO] [stderr]     Checking lib3 v0.1.0 (/opt/rustwide/workdir/lib3)
[INFO] [stderr]     Checking lib2 v0.1.0 (/opt/rustwide/workdir/lib2)
[INFO] [stderr]     Checking lib1 v0.1.0 (/opt/rustwide/workdir/lib1)
[INFO] [stderr]     Checking lib5 v0.1.0 (/opt/rustwide/workdir/lib5)
[INFO] [stderr]     Checking exported-symbol-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> tests/broken4.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let t = &s as &lib4::T;
[INFO] [stdout]   |                    ^^^^^^^ help: use `dyn`: `dyn lib4::T`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
[INFO] running `Command { std: "docker" "inspect" "a95bf8f847e107280eb2e169f6d4f875eb655e17a56a66d8aafbdd4104452514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a95bf8f847e107280eb2e169f6d4f875eb655e17a56a66d8aafbdd4104452514", kill_on_drop: false }`
[INFO] [stdout] a95bf8f847e107280eb2e169f6d4f875eb655e17a56a66d8aafbdd4104452514