[INFO] fetching crate mcumeter 0.2.0...
[INFO] checking mcumeter-0.2.0 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate mcumeter 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate mcumeter 0.2.0 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate mcumeter 0.2.0
[INFO] finished tweaking crates.io crate mcumeter 0.2.0
[INFO] tweaked toml for crates.io crate mcumeter 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate mcumeter 0.2.0 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded stm32f0xx-hal v0.18.0
[INFO] [stderr]   Downloaded bxcan v0.6.2
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.1
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded display-interface-spi v0.4.1
[INFO] [stderr]   Downloaded cortex-m v0.7.4
[INFO] [stderr]   Downloaded float-cmp v0.8.0
[INFO] [stderr]   Downloaded ina260 v0.3.1
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.7
[INFO] [stderr]   Downloaded az v1.2.0
[INFO] [stderr]   Downloaded heapless v0.7.10
[INFO] [stderr]   Downloaded micromath v1.1.1
[INFO] [stderr]   Downloaded riscv v0.7.0
[INFO] [stderr]   Downloaded ssd1306 v0.7.0
[INFO] [stderr]   Downloaded panic-halt v0.2.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded stm32f0 v0.14.0
[INFO] [stderr]   Downloaded critical-section v0.2.6
[INFO] [stderr]   Downloaded shared-bus v0.2.3
[INFO] [stderr]   Downloaded display-interface-i2c v0.4.0
[INFO] [stderr]   Downloaded display-interface v0.4.1
[INFO] [stderr]   Downloaded embedded-graphics-core v0.3.3
[INFO] [stderr]   Downloaded embedded-graphics v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 475c01b4538367150e7aabc474de7413d93a37fa2461c87029e6992982789db7
[INFO] running `Command { std: "docker" "start" "-a" "475c01b4538367150e7aabc474de7413d93a37fa2461c87029e6992982789db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "475c01b4538367150e7aabc474de7413d93a37fa2461c87029e6992982789db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475c01b4538367150e7aabc474de7413d93a37fa2461c87029e6992982789db7", kill_on_drop: false }`
[INFO] [stdout] 475c01b4538367150e7aabc474de7413d93a37fa2461c87029e6992982789db7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34c5c4fce6f542e60d3ccfb723c705603f3d2b45b906fe3f410bc1181d9511d2
[INFO] running `Command { std: "docker" "start" "-a" "34c5c4fce6f542e60d3ccfb723c705603f3d2b45b906fe3f410bc1181d9511d2", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling critical-section v0.2.6
[INFO] [stderr]    Compiling atomic-polyfill v0.1.7
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking display-interface v0.4.1
[INFO] [stderr]    Compiling stm32f0 v0.14.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking byte-slice-cast v0.3.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking micromath v1.1.1
[INFO] [stderr]     Checking bxcan v0.6.2
[INFO] [stderr]     Checking display-interface-i2c v0.4.0
[INFO] [stderr]     Checking display-interface-spi v0.4.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking shared-bus v0.2.3
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking ina260 v0.3.1
[INFO] [stderr]     Checking embedded-graphics-core v0.3.3
[INFO] [stderr]     Checking embedded-graphics v0.7.1
[INFO] [stderr]     Checking ssd1306 v0.7.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]     Checking stm32f0xx-hal v0.18.0
[INFO] [stderr]     Checking mcumeter v0.2.0 (/opt/rustwide/workdir)
[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[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 `mcumeter` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-e6987c82e20f5f7b.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/506512391b1a75ae450d36c9420978402a91abcc/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6701759d8343e913.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 `mcumeter` (bin "mcumeter" test) 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] [stderr] error: could not compile `mcumeter` (bin "mcumeter") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "34c5c4fce6f542e60d3ccfb723c705603f3d2b45b906fe3f410bc1181d9511d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c5c4fce6f542e60d3ccfb723c705603f3d2b45b906fe3f410bc1181d9511d2", kill_on_drop: false }`
[INFO] [stdout] 34c5c4fce6f542e60d3ccfb723c705603f3d2b45b906fe3f410bc1181d9511d2
[INFO] checking mcumeter-0.2.0 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate mcumeter 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate mcumeter 0.2.0 on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate mcumeter 0.2.0
[INFO] finished tweaking crates.io crate mcumeter 0.2.0
[INFO] tweaked toml for crates.io crate mcumeter 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate mcumeter 0.2.0 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19d0cc3816e25099b47df4a3b05c5d924edc5cf68de571e5688305e827ff52df
[INFO] running `Command { std: "docker" "start" "-a" "19d0cc3816e25099b47df4a3b05c5d924edc5cf68de571e5688305e827ff52df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19d0cc3816e25099b47df4a3b05c5d924edc5cf68de571e5688305e827ff52df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19d0cc3816e25099b47df4a3b05c5d924edc5cf68de571e5688305e827ff52df", kill_on_drop: false }`
[INFO] [stdout] 19d0cc3816e25099b47df4a3b05c5d924edc5cf68de571e5688305e827ff52df
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f164c80b4222ab6954943f96e28525dc9ff37ddf8e5778acde611126ffd5401b
[INFO] running `Command { std: "docker" "start" "-a" "f164c80b4222ab6954943f96e28525dc9ff37ddf8e5778acde611126ffd5401b", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "f164c80b4222ab6954943f96e28525dc9ff37ddf8e5778acde611126ffd5401b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f164c80b4222ab6954943f96e28525dc9ff37ddf8e5778acde611126ffd5401b", kill_on_drop: false }`
[INFO] [stdout] f164c80b4222ab6954943f96e28525dc9ff37ddf8e5778acde611126ffd5401b