[INFO] fetching crate no-panics-whatsoever 0.1.0...
[INFO] checking no-panics-whatsoever-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate no-panics-whatsoever 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate no-panics-whatsoever 0.1.0
[INFO] finished tweaking crates.io crate no-panics-whatsoever 0.1.0
[INFO] tweaked toml for crates.io crate no-panics-whatsoever 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate no-panics-whatsoever 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 295b23f060c3b2b824996ce71028eb6e9c40d9eb1c78129303b0b305c6f156c3
[INFO] running `Command { std: "docker" "start" "-a" "295b23f060c3b2b824996ce71028eb6e9c40d9eb1c78129303b0b305c6f156c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "295b23f060c3b2b824996ce71028eb6e9c40d9eb1c78129303b0b305c6f156c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "295b23f060c3b2b824996ce71028eb6e9c40d9eb1c78129303b0b305c6f156c3", kill_on_drop: false }`
[INFO] [stdout] 295b23f060c3b2b824996ce71028eb6e9c40d9eb1c78129303b0b305c6f156c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c24f531d66cb19b88e0fdc3f2118b58598fac33f54ec0f8e80aaa0cfdd59ccca
[INFO] running `Command { std: "docker" "start" "-a" "c24f531d66cb19b88e0fdc3f2118b58598fac33f54ec0f8e80aaa0cfdd59ccca", kill_on_drop: false }`
[INFO] [stderr]     Checking no-panics-whatsoever v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/lib.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | / fn panic(_: &PanicInfo) -> ! {
[INFO] [stdout] 38 | |     extern "C" {
[INFO] [stdout] 39 | |         #[cfg_attr(
[INFO] [stdout] 40 | |             target_family = "unix", link_name = "\n\n\x1b[s\x1b[1000D\x1b[0;31m\x1b[1merror\x1b[0m\x1b[1m: the static assertion that no p...
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     unsafe { never_panic() }
[INFO] [stdout] 47 | | }
[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/a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9fbdd90241d2d923.rlib
[INFO] [stdout]    = note: second definition in the local crate (`no_panics_whatsoever`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `no-panics-whatsoever` (lib test) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c24f531d66cb19b88e0fdc3f2118b58598fac33f54ec0f8e80aaa0cfdd59ccca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24f531d66cb19b88e0fdc3f2118b58598fac33f54ec0f8e80aaa0cfdd59ccca", kill_on_drop: false }`
[INFO] [stdout] c24f531d66cb19b88e0fdc3f2118b58598fac33f54ec0f8e80aaa0cfdd59ccca