[INFO] fetching crate junctor 0.0.1...
[INFO] checking junctor-0.0.1 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate junctor 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate junctor 0.0.1 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate junctor 0.0.1
[INFO] finished tweaking crates.io crate junctor 0.0.1
[INFO] tweaked toml for crates.io crate junctor 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate junctor 0.0.1 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash32 v0.1.1
[INFO] [stderr]   Downloaded heapless v0.5.5
[INFO] [stderr]   Downloaded r0 v0.2.2
[INFO] [stderr]   Downloaded stable_deref_trait v1.2.0
[INFO] [stderr]   Downloaded aligned v0.3.2
[INFO] [stderr]   Downloaded vcell v0.1.2
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded volatile-register v0.2.0
[INFO] [stderr]   Downloaded typenum v1.12.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.12
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded generic-array v0.13.2
[INFO] [stderr]   Downloaded cortex-m v0.6.3
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.1.8
[INFO] [stderr]   Downloaded as-slice v0.1.3
[INFO] [stderr]   Downloaded syn v1.0.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4748c16d92342c42ff35563b80b5e10e222ce6238406964426f5d5699f82804a
[INFO] running `Command { std: "docker" "start" "-a" "4748c16d92342c42ff35563b80b5e10e222ce6238406964426f5d5699f82804a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4748c16d92342c42ff35563b80b5e10e222ce6238406964426f5d5699f82804a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4748c16d92342c42ff35563b80b5e10e222ce6238406964426f5d5699f82804a", kill_on_drop: false }`
[INFO] [stdout] 4748c16d92342c42ff35563b80b5e10e222ce6238406964426f5d5699f82804a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5497326bc2ce14ef688900877738beb2433d164a7df8bc2a44b5c307e57c607
[INFO] running `Command { std: "docker" "start" "-a" "c5497326bc2ce14ef688900877738beb2433d164a7df8bc2a44b5c307e57c607", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling cortex-m v0.6.3
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling junctor v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[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: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / fn panic(info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout] 22 | |     log::error!("{}", info);
[INFO] [stdout] 23 | |
[INFO] [stdout] 24 | |     loop {
[INFO] [stdout] 25 | |         asm::bkpt()
[INFO] [stdout] 26 | |     }
[INFO] [stdout] 27 | | }
[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/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e0ee872a6f64065a.rlib
[INFO] [stdout]    = note: second definition in the local crate (`junctor`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `junctor` (bin "junctor") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `junctor` (bin "junctor" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c5497326bc2ce14ef688900877738beb2433d164a7df8bc2a44b5c307e57c607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5497326bc2ce14ef688900877738beb2433d164a7df8bc2a44b5c307e57c607", kill_on_drop: false }`
[INFO] [stdout] c5497326bc2ce14ef688900877738beb2433d164a7df8bc2a44b5c307e57c607