[INFO] fetching crate panic-halt 1.0.0...
[INFO] checking panic-halt-1.0.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate panic-halt 1.0.0 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate panic-halt 1.0.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa6b3a4ec3520bdd1357dac5b403130c590e5dfb44ee7cfd09ca3657186a6a8f
[INFO] running `Command { std: "docker" "start" "-a" "aa6b3a4ec3520bdd1357dac5b403130c590e5dfb44ee7cfd09ca3657186a6a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa6b3a4ec3520bdd1357dac5b403130c590e5dfb44ee7cfd09ca3657186a6a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa6b3a4ec3520bdd1357dac5b403130c590e5dfb44ee7cfd09ca3657186a6a8f", kill_on_drop: false }`
[INFO] [stdout] aa6b3a4ec3520bdd1357dac5b403130c590e5dfb44ee7cfd09ca3657186a6a8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73362cc10440582edfc7dc80a81c354a395159385ec9548480dbaa5d8b20fb20
[INFO] running `Command { std: "docker" "start" "-a" "73362cc10440582edfc7dc80a81c354a395159385ec9548480dbaa5d8b20fb20", kill_on_drop: false }`
[INFO] [stderr]     Checking 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/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-182371ab76f58e7c.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" "73362cc10440582edfc7dc80a81c354a395159385ec9548480dbaa5d8b20fb20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73362cc10440582edfc7dc80a81c354a395159385ec9548480dbaa5d8b20fb20", kill_on_drop: false }`
[INFO] [stdout] 73362cc10440582edfc7dc80a81c354a395159385ec9548480dbaa5d8b20fb20