[INFO] fetching crate mini-loader 1.2.1...
[INFO] checking mini-loader-1.2.1 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate mini-loader 1.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mini-loader 1.2.1
[INFO] finished tweaking crates.io crate mini-loader 1.2.1
[INFO] tweaked toml for crates.io crate mini-loader 1.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mini-loader 1.2.1 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mini-loader 1.2.1 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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v2.9.1
[INFO] [stderr]   Downloaded linked_list_allocator v0.10.5
[INFO] [stderr]   Downloaded autocfg v1.4.0
[INFO] [stderr]   Downloaded lock_api v0.4.13
[INFO] [stderr]   Downloaded delegate v0.13.3
[INFO] [stderr]   Downloaded spinning_top v0.2.5
[INFO] [stderr]   Downloaded elf_loader v0.13.0
[INFO] [stderr]   Downloaded elf v0.8.0
[INFO] [stderr]   Downloaded syscalls v0.7.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e64d846d6d84871f407016e9b7f54451f45c9293d3ab3375b8d47656dc0431ec
[INFO] running `Command { std: "docker" "start" "-a" "e64d846d6d84871f407016e9b7f54451f45c9293d3ab3375b8d47656dc0431ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e64d846d6d84871f407016e9b7f54451f45c9293d3ab3375b8d47656dc0431ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64d846d6d84871f407016e9b7f54451f45c9293d3ab3375b8d47656dc0431ec", kill_on_drop: false }`
[INFO] [stdout] e64d846d6d84871f407016e9b7f54451f45c9293d3ab3375b8d47656dc0431ec
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d842e246f7700fa5b98d5a567fa2b3c56245bd190a80c3cd9363a430e5564ae
[INFO] running `Command { std: "docker" "start" "-a" "4d842e246f7700fa5b98d5a567fa2b3c56245bd190a80c3cd9363a430e5564ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling syscalls v0.7.0
[INFO] [stderr]    Compiling elf_loader v0.13.0
[INFO] [stderr]     Checking elf v0.8.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking spinning_top v0.2.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking linked_list_allocator v0.10.5
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling delegate v0.13.3
[INFO] [stderr]     Checking mini-loader v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `mini-loader` (bin "mini-loader" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | / fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout] 35 | |     let location = info.location().unwrap();
[INFO] [stdout] 36 | |     let mut buf = Buffer::new();
[INFO] [stdout] 37 | |     print_str(location.file());
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | |     exit(-1);
[INFO] [stdout] 52 | | }
[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/bbe853615821442ef11d6cd42a30a73432b38d89/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eaa78b24106cd0ea.rmeta
[INFO] [stdout]    = note: second definition in the local crate (`mini_loader`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mini-loader` (bin "mini-loader") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4d842e246f7700fa5b98d5a567fa2b3c56245bd190a80c3cd9363a430e5564ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d842e246f7700fa5b98d5a567fa2b3c56245bd190a80c3cd9363a430e5564ae", kill_on_drop: false }`
[INFO] [stdout] 4d842e246f7700fa5b98d5a567fa2b3c56245bd190a80c3cd9363a430e5564ae