[INFO] cloning repository https://github.com/frogshead/blue-pill-ds1820-temp-sensor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frogshead/blue-pill-ds1820-temp-sensor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrogshead%2Fblue-pill-ds1820-temp-sensor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrogshead%2Fblue-pill-ds1820-temp-sensor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ad2f49dbf7538842d7db1f9e7192d0d8a3b0c0a
[INFO] checking frogshead/blue-pill-ds1820-temp-sensor against try#9053a8ad740a9e131b53ea98acecf68cf79134fe for pr-137045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrogshead%2Fblue-pill-ds1820-temp-sensor" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor on toolchain 9053a8ad740a9e131b53ea98acecf68cf79134fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor
[INFO] finished tweaking git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor
[INFO] tweaked toml for git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor 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" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded panic-semihosting v0.5.1
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.7
[INFO] [stderr]   Downloaded embedded-hal v0.2.2
[INFO] [stderr]   Downloaded stm32f1xx-hal v0.2.0
[INFO] [stderr]   Downloaded enc28j60 v0.2.1
[INFO] [stderr]   Downloaded panic-itm v0.4.0
[INFO] [stderr]   Downloaded heapless v0.4.2
[INFO] [stderr]   Downloaded mfrc522 v0.2.0
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.2
[INFO] [stderr]   Downloaded cortex-m v0.5.8
[INFO] [stderr]   Downloaded m v0.1.1
[INFO] [stderr]   Downloaded nb v0.1.1
[INFO] [stderr]   Downloaded stm32f1 v0.6.0
[INFO] [stderr]   Downloaded onewire v0.3.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 816a47bf6690d580c6afd302ddf0192bc736d78d1725807b92c38f18bfe0bb20
[INFO] running `Command { std: "docker" "start" "-a" "816a47bf6690d580c6afd302ddf0192bc736d78d1725807b92c38f18bfe0bb20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "816a47bf6690d580c6afd302ddf0192bc736d78d1725807b92c38f18bfe0bb20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "816a47bf6690d580c6afd302ddf0192bc736d78d1725807b92c38f18bfe0bb20", kill_on_drop: false }`
[INFO] [stdout] 816a47bf6690d580c6afd302ddf0192bc736d78d1725807b92c38f18bfe0bb20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9053a8ad740a9e131b53ea98acecf68cf79134fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a96122cfe7120e9dae491603452eec0fff36c35d4a95e50cc39ced8bb8fab01a
[INFO] running `Command { std: "docker" "start" "-a" "a96122cfe7120e9dae491603452eec0fff36c35d4a95e50cc39ced8bb8fab01a", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m v0.5.8
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.1
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking embedded-hal v0.2.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling cortex-m-rt v0.6.7
[INFO] [stderr]    Compiling stm32f1 v0.6.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.2
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking m v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking hash32 v0.1.0
[INFO] [stderr]     Checking onewire v0.3.10
[INFO] [stderr]     Checking enc28j60 v0.2.1
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking panic-itm v0.4.0
[INFO] [stderr]     Checking panic-semihosting v0.5.1
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]     Checking mfrc522 v0.2.0
[INFO] [stderr]     Checking heapless v0.4.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]     Checking stm32f1xx-hal v0.2.0
[INFO] [stderr]     Checking ds1820 v0.1.0 (/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 `panic_semihosting` (which `ds1820` depends on)
[INFO] [stdout]   = note: first definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-2670c25d88b2c4e1.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/9053a8ad740a9e131b53ea98acecf68cf79134fe/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-bd3f4c5fdfb888bb.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] error: could not compile `ds1820` (bin "ds1820" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ds1820` (bin "ds1820") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a96122cfe7120e9dae491603452eec0fff36c35d4a95e50cc39ced8bb8fab01a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a96122cfe7120e9dae491603452eec0fff36c35d4a95e50cc39ced8bb8fab01a", kill_on_drop: false }`
[INFO] [stdout] a96122cfe7120e9dae491603452eec0fff36c35d4a95e50cc39ced8bb8fab01a