[INFO] cloning repository https://github.com/ascii-16/rust-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ascii-16/rust-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fascii-16%2Frust-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fascii-16%2Frust-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c92ead4d3cfb9cc01552023d77fab41138acc65
[INFO] checking ascii-16/rust-examples against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fascii-16%2Frust-examples" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ascii-16/rust-examples
[INFO] finished tweaking git repo https://github.com/ascii-16/rust-examples
[INFO] tweaked toml for git repo https://github.com/ascii-16/rust-examples written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ascii-16/rust-examples on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ascii-16/rust-examples 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37d70c0e9b57c2cb67787c417d2251a7996ae2ee8ba6ce90a56bac05941dcba4
[INFO] running `Command { std: "docker" "start" "-a" "37d70c0e9b57c2cb67787c417d2251a7996ae2ee8ba6ce90a56bac05941dcba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37d70c0e9b57c2cb67787c417d2251a7996ae2ee8ba6ce90a56bac05941dcba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d70c0e9b57c2cb67787c417d2251a7996ae2ee8ba6ce90a56bac05941dcba4", kill_on_drop: false }`
[INFO] [stdout] 37d70c0e9b57c2cb67787c417d2251a7996ae2ee8ba6ce90a56bac05941dcba4
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6753b2d1dea6c628dce9d73fbee8336ea23c3c989907950eab76355f067bb19
[INFO] running `Command { std: "docker" "start" "-a" "f6753b2d1dea6c628dce9d73fbee8336ea23c3c989907950eab76355f067bb19", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stdout] error[E0428]: the name `_` is defined multiple times
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.25/src/byteorder.rs:497:9
[INFO] [stdout]     |
[INFO] [stdout] 497 |           const _: () = unsafe {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^ `_` redefined here
[INFO] [stdout] ...
[INFO] [stdout] 734 | / define_type!(
[INFO] [stdout] 735 | |     A,
[INFO] [stdout] 736 | |     "A 64-bit unsigned integer",
[INFO] [stdout] 737 | |     U64,
[INFO] [stdout] ...   |
[INFO] [stdout] 749 | |     [U128]
[INFO] [stdout] 750 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.25/src/util/macros.rs:416:9
[INFO] [stdout]     |
[INFO] [stdout] 416 |           const _: () = {
[INFO] [stdout]     |           ------------- previous definition of the value `_` here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_` must be defined only once in the value namespace of this module
[INFO] [stdout]     = note: this error originates in the macro `define_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zerocopy` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f6753b2d1dea6c628dce9d73fbee8336ea23c3c989907950eab76355f067bb19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6753b2d1dea6c628dce9d73fbee8336ea23c3c989907950eab76355f067bb19", kill_on_drop: false }`
[INFO] [stdout] f6753b2d1dea6c628dce9d73fbee8336ea23c3c989907950eab76355f067bb19