[INFO] cloning repository https://github.com/tallamjr/qemu-cross
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tallamjr/qemu-cross" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftallamjr%2Fqemu-cross", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftallamjr%2Fqemu-cross'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b520279fdae1d49a95fe5ecd5017d28000780e1
[INFO] checking tallamjr/qemu-cross against try#804fff1ae95da9d03bd44eee27f258020a575dab for pr-146013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftallamjr%2Fqemu-cross" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/tallamjr/qemu-cross
[INFO] finished tweaking git repo https://github.com/tallamjr/qemu-cross
[INFO] tweaked toml for git repo https://github.com/tallamjr/qemu-cross written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tallamjr/qemu-cross on toolchain 804fff1ae95da9d03bd44eee27f258020a575dab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tallamjr/qemu-cross 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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c9843fd5c46b163420bfc67075a95dbc3d9359b8a3456bb9253a4cf646cbd38
[INFO] running `Command { std: "docker" "start" "-a" "1c9843fd5c46b163420bfc67075a95dbc3d9359b8a3456bb9253a4cf646cbd38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c9843fd5c46b163420bfc67075a95dbc3d9359b8a3456bb9253a4cf646cbd38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9843fd5c46b163420bfc67075a95dbc3d9359b8a3456bb9253a4cf646cbd38", kill_on_drop: false }`
[INFO] [stdout] 1c9843fd5c46b163420bfc67075a95dbc3d9359b8a3456bb9253a4cf646cbd38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2363151cf5bf8d21b1c468a970627742b49ac3671e3327df1a028c3d2b40a72
[INFO] running `Command { std: "docker" "start" "-a" "d2363151cf5bf8d21b1c468a970627742b49ac3671e3327df1a028c3d2b40a72", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.100
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling sys-info v0.9.1
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: hello@0.1.0: OS: Linux
[INFO] [stderr] warning: hello@0.1.0: OS Release: 6.14.0-1014-gcp
[INFO] [stderr] warning: hello@0.1.0: CPU Cores: 16
[INFO] [stderr] warning: hello@0.1.0: CPU Speed: 2449 MHz
[INFO] [stderr] warning: hello@0.1.0: Total Memory: 16369956 KB, Free Memory: 2308704 KB
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `test` depends on): `panic_impl`
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_halt` (which `hello` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-b09f8ab056e64272.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/804fff1ae95da9d03bd44eee27f258020a575dab/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-689ca45c0c8af91f.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[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] [stderr] warning: hello@0.1.0: OS: Linux
[INFO] [stderr] warning: hello@0.1.0: OS Release: 6.14.0-1014-gcp
[INFO] [stderr] warning: hello@0.1.0: CPU Cores: 16
[INFO] [stderr] warning: hello@0.1.0: CPU Speed: 2449 MHz
[INFO] [stderr] warning: hello@0.1.0: Total Memory: 16369956 KB, Free Memory: 2308704 KB
[INFO] [stderr] error: could not compile `hello` (bin "hello") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: hello@0.1.0: OS: Linux
[INFO] [stderr] warning: hello@0.1.0: OS Release: 6.14.0-1014-gcp
[INFO] [stderr] warning: hello@0.1.0: CPU Cores: 16
[INFO] [stderr] warning: hello@0.1.0: CPU Speed: 2449 MHz
[INFO] [stderr] warning: hello@0.1.0: Total Memory: 16369956 KB, Free Memory: 2308704 KB
[INFO] [stderr] error: could not compile `hello` (bin "hello" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "d2363151cf5bf8d21b1c468a970627742b49ac3671e3327df1a028c3d2b40a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2363151cf5bf8d21b1c468a970627742b49ac3671e3327df1a028c3d2b40a72", kill_on_drop: false }`
[INFO] [stdout] d2363151cf5bf8d21b1c468a970627742b49ac3671e3327df1a028c3d2b40a72