[INFO] fetching crate panic-halt 1.0.0...
[INFO] testing panic-halt-1.0.0 against master#a1531335fe2807715fff569904d99602022643a7 for pr-145277
[INFO] extracting crate panic-halt 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate panic-halt 1.0.0
[INFO] finished tweaking crates.io crate panic-halt 1.0.0
[INFO] tweaked toml for crates.io crate panic-halt 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate panic-halt 1.0.0 on toolchain a1531335fe2807715fff569904d99602022643a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1531335fe2807715fff569904d99602022643a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+a1531335fe2807715fff569904d99602022643a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09f99a2208c6a83e4fb4626e48a6a2fb89ab993c246da32e68adf604ec1deed7
[INFO] running `Command { std: "docker" "start" "-a" "09f99a2208c6a83e4fb4626e48a6a2fb89ab993c246da32e68adf604ec1deed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09f99a2208c6a83e4fb4626e48a6a2fb89ab993c246da32e68adf604ec1deed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09f99a2208c6a83e4fb4626e48a6a2fb89ab993c246da32e68adf604ec1deed7", kill_on_drop: false }`
[INFO] [stdout] 09f99a2208c6a83e4fb4626e48a6a2fb89ab993c246da32e68adf604ec1deed7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+a1531335fe2807715fff569904d99602022643a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f21164236860d0cc9f4345eea5764685db265367c8bb077528a79dcd73d21bb2
[INFO] running `Command { std: "docker" "start" "-a" "f21164236860d0cc9f4345eea5764685db265367c8bb077528a79dcd73d21bb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling panic-halt v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "f21164236860d0cc9f4345eea5764685db265367c8bb077528a79dcd73d21bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f21164236860d0cc9f4345eea5764685db265367c8bb077528a79dcd73d21bb2", kill_on_drop: false }`
[INFO] [stdout] f21164236860d0cc9f4345eea5764685db265367c8bb077528a79dcd73d21bb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+a1531335fe2807715fff569904d99602022643a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07432854735d8c97f3e41c88b1749f3e5cee6b4adb530f52c8069b57804025a3
[INFO] running `Command { std: "docker" "start" "-a" "07432854735d8c97f3e41c88b1749f3e5cee6b4adb530f52c8069b57804025a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling panic-halt v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 31 | |     loop {}
[INFO] [stdout] 32 | | }
[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/a1531335fe2807715fff569904d99602022643a7/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9fbdd90241d2d923.so, /opt/rustwide/rustup-home/toolchains/a1531335fe2807715fff569904d99602022643a7/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9fbdd90241d2d923.rlib
[INFO] [stdout]    = note: second definition in the local crate (`panic_halt`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `panic-halt` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "07432854735d8c97f3e41c88b1749f3e5cee6b4adb530f52c8069b57804025a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07432854735d8c97f3e41c88b1749f3e5cee6b4adb530f52c8069b57804025a3", kill_on_drop: false }`
[INFO] [stdout] 07432854735d8c97f3e41c88b1749f3e5cee6b4adb530f52c8069b57804025a3