[INFO] fetching crate ev3 0.5.2...
[INFO] checking ev3-0.5.2 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate ev3 0.5.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ev3 0.5.2 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ev3 0.5.2
[INFO] finished tweaking crates.io crate ev3 0.5.2
[INFO] tweaked toml for crates.io crate ev3 0.5.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ev3rt v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c0d3679eff22496ff4da294813ee9df0ddb313f95bdd63f3c1598fb4d0a2c60
[INFO] running `Command { std: "docker" "start" "-a" "5c0d3679eff22496ff4da294813ee9df0ddb313f95bdd63f3c1598fb4d0a2c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c0d3679eff22496ff4da294813ee9df0ddb313f95bdd63f3c1598fb4d0a2c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c0d3679eff22496ff4da294813ee9df0ddb313f95bdd63f3c1598fb4d0a2c60", kill_on_drop: false }`
[INFO] [stdout] 5c0d3679eff22496ff4da294813ee9df0ddb313f95bdd63f3c1598fb4d0a2c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 279912cdd84da11d4a1a161fc4c7e27475ca6cb55361245dea49461d7d07cc70
[INFO] running `Command { std: "docker" "start" "-a" "279912cdd84da11d4a1a161fc4c7e27475ca6cb55361245dea49461d7d07cc70", kill_on_drop: false }`
[INFO] [stderr]     Checking ev3rt v0.5.0
[INFO] [stderr]     Checking ev3 v0.5.2 (/opt/rustwide/workdir)
[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 `ev3rt` (which `ev3` depends on)
[INFO] [stdout]   = note: first definition in `ev3rt` loaded from /opt/rustwide/target/debug/deps/libev3rt-60c7fb2ad245f558.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/30f74ff0dc4d66debc8b50724c446f817e5f75f4/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eb900a948ffb2e3b.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[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 `ev3` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "279912cdd84da11d4a1a161fc4c7e27475ca6cb55361245dea49461d7d07cc70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "279912cdd84da11d4a1a161fc4c7e27475ca6cb55361245dea49461d7d07cc70", kill_on_drop: false }`
[INFO] [stdout] 279912cdd84da11d4a1a161fc4c7e27475ca6cb55361245dea49461d7d07cc70
