[INFO] fetching crate min32 0.1.2...
[INFO] testing min32-0.1.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate min32 0.1.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate min32 0.1.2
[INFO] finished tweaking crates.io crate min32 0.1.2
[INFO] tweaked toml for crates.io crate min32 0.1.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate min32 0.1.2 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate min32 0.1.2 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded min32-proc v0.1.2
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbf2ef3fcec95893d6f641235963fd624a4cf62e055c4c0a8dbb1d391d133e41
[INFO] running `Command { std: "docker" "start" "-a" "bbf2ef3fcec95893d6f641235963fd624a4cf62e055c4c0a8dbb1d391d133e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbf2ef3fcec95893d6f641235963fd624a4cf62e055c4c0a8dbb1d391d133e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbf2ef3fcec95893d6f641235963fd624a4cf62e055c4c0a8dbb1d391d133e41", kill_on_drop: false }`
[INFO] [stdout] bbf2ef3fcec95893d6f641235963fd624a4cf62e055c4c0a8dbb1d391d133e41
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 33107caef16f1940a7da40fefb0792d89dd89083fd830ae30156538a5ea96540
[INFO] running `Command { std: "docker" "start" "-a" "33107caef16f1940a7da40fefb0792d89dd89083fd830ae30156538a5ea96540", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling windows-targets v0.52.6
[INFO] [stderr]    Compiling windows-sys v0.59.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling min32-proc v0.1.2
[INFO] [stderr]    Compiling min32 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.08s
[INFO] running `Command { std: "docker" "inspect" "33107caef16f1940a7da40fefb0792d89dd89083fd830ae30156538a5ea96540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33107caef16f1940a7da40fefb0792d89dd89083fd830ae30156538a5ea96540", kill_on_drop: false }`
[INFO] [stdout] 33107caef16f1940a7da40fefb0792d89dd89083fd830ae30156538a5ea96540
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f4b3c3d462f6ee952d5a646a9bf388273890a15567700571ac57aa33be2fa4a8
[INFO] running `Command { std: "docker" "start" "-a" "f4b3c3d462f6ee952d5a646a9bf388273890a15567700571ac57aa33be2fa4a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling min32 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/panic.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / unsafe fn on_panic(panic_info: &PanicInfo) -> ! {
[INFO] [stdout] 19 | |     if let Some(hook) = { PANIC_HOOK.lock().clone() } {
[INFO] [stdout] 20 | |         // Safety: Hopefully the caller passed something that isn't bad.
[INFO] [stdout] 21 | |         unsafe { hook(panic_info) };
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | | }
[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/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/lib/rustlib/x86_64-unknown-linux-musl/lib/libstd-6552f92f1a5eadae.so, /opt/rustwide/rustup-home/toolchains/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/lib/rustlib/x86_64-unknown-linux-musl/lib/libstd-6552f92f1a5eadae.rlib
[INFO] [stdout]    = note: second definition in the local crate (`min32`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `min32` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f4b3c3d462f6ee952d5a646a9bf388273890a15567700571ac57aa33be2fa4a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b3c3d462f6ee952d5a646a9bf388273890a15567700571ac57aa33be2fa4a8", kill_on_drop: false }`
[INFO] [stdout] f4b3c3d462f6ee952d5a646a9bf388273890a15567700571ac57aa33be2fa4a8