[INFO] cloning repository https://github.com/mitsuhiko/wasm-example-please-ignore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitsuhiko/wasm-example-please-ignore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fwasm-example-please-ignore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fwasm-example-please-ignore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36247f8ae638acb96b70d810e40da3bb102f5374
[INFO] testing mitsuhiko/wasm-example-please-ignore against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fwasm-example-please-ignore" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mitsuhiko/wasm-example-please-ignore on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mitsuhiko/wasm-example-please-ignore
[INFO] finished tweaking git repo https://github.com/mitsuhiko/wasm-example-please-ignore
[INFO] tweaked toml for git repo https://github.com/mitsuhiko/wasm-example-please-ignore written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mitsuhiko/wasm-example-please-ignore already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bcd8aa5a090239678410b09a2e35399bfebf0a5f69dd95535d70bcd05f7e3a0
[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" "2bcd8aa5a090239678410b09a2e35399bfebf0a5f69dd95535d70bcd05f7e3a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bcd8aa5a090239678410b09a2e35399bfebf0a5f69dd95535d70bcd05f7e3a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bcd8aa5a090239678410b09a2e35399bfebf0a5f69dd95535d70bcd05f7e3a0", kill_on_drop: false }`
[INFO] [stdout] 2bcd8aa5a090239678410b09a2e35399bfebf0a5f69dd95535d70bcd05f7e3a0
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] b56da7cda2d4c7dcb1cea51cf280eeaabb7e484dded89c36144bd22aef962716
[INFO] running `Command { std: "docker" "start" "-a" "b56da7cda2d4c7dcb1cea51cf280eeaabb7e484dded89c36144bd22aef962716", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "b56da7cda2d4c7dcb1cea51cf280eeaabb7e484dded89c36144bd22aef962716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b56da7cda2d4c7dcb1cea51cf280eeaabb7e484dded89c36144bd22aef962716", kill_on_drop: false }`
[INFO] [stdout] b56da7cda2d4c7dcb1cea51cf280eeaabb7e484dded89c36144bd22aef962716
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc128df832ced5cc695ff86f6379711a094f60d4f2f28139d4d64bf9dc898186
[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" "cc128df832ced5cc695ff86f6379711a094f60d4f2f28139d4d64bf9dc898186", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `simple`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn panic(_info: &core::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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.so, /opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib
[INFO] [stdout]   = note: second definition in the local crate (`simple`)
[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] running `Command { std: "docker" "inspect" "cc128df832ced5cc695ff86f6379711a094f60d4f2f28139d4d64bf9dc898186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc128df832ced5cc695ff86f6379711a094f60d4f2f28139d4d64bf9dc898186", kill_on_drop: false }`
[INFO] [stdout] cc128df832ced5cc695ff86f6379711a094f60d4f2f28139d4d64bf9dc898186