[INFO] fetching crate no-panics-whatsoever 0.1.0...
[INFO] checking no-panics-whatsoever-0.1.0 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] extracting crate no-panics-whatsoever 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate no-panics-whatsoever 0.1.0 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate no-panics-whatsoever 0.1.0
[INFO] finished tweaking crates.io crate no-panics-whatsoever 0.1.0
[INFO] tweaked toml for crates.io crate no-panics-whatsoever 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "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] de36f58b54dd04858dc89e8c1df97a5eb9144979654aecc80eaa88b4f48468ce
[INFO] running `Command { std: "docker" "start" "-a" "de36f58b54dd04858dc89e8c1df97a5eb9144979654aecc80eaa88b4f48468ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de36f58b54dd04858dc89e8c1df97a5eb9144979654aecc80eaa88b4f48468ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de36f58b54dd04858dc89e8c1df97a5eb9144979654aecc80eaa88b4f48468ce", kill_on_drop: false }`
[INFO] [stdout] de36f58b54dd04858dc89e8c1df97a5eb9144979654aecc80eaa88b4f48468ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faea3ea6a44e548a9efb68005f116c7ada873a81da78ec4d62cc4a75ea846cc1
[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" "faea3ea6a44e548a9efb68005f116c7ada873a81da78ec4d62cc4a75ea846cc1", kill_on_drop: false }`
[INFO] [stderr]     Checking no-panics-whatsoever v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn panic(_: &PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/4a23c45c7893f1416456144e3883cc48ea91722e/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6f5658153d127ddd.rlib
[INFO] [stdout]    = note: second definition in the local crate (`no_panics_whatsoever`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `no-panics-whatsoever`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "faea3ea6a44e548a9efb68005f116c7ada873a81da78ec4d62cc4a75ea846cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faea3ea6a44e548a9efb68005f116c7ada873a81da78ec4d62cc4a75ea846cc1", kill_on_drop: false }`
[INFO] [stdout] faea3ea6a44e548a9efb68005f116c7ada873a81da78ec4d62cc4a75ea846cc1