[INFO] updating cached repository RustyGecko/sensor-tracker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RustyGecko/sensor-tracker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RustyGecko/sensor-tracker" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/RustyGecko/sensor-tracker"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/RustyGecko/sensor-tracker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RustyGecko/sensor-tracker" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/RustyGecko/sensor-tracker"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/RustyGecko/sensor-tracker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 453510e4acec853e4a3229d488c093e91a596b69
[INFO] sha for GitHub repo RustyGecko/sensor-tracker: 453510e4acec853e4a3229d488c093e91a596b69
[INFO] validating manifest of RustyGecko/sensor-tracker on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RustyGecko/sensor-tracker on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing RustyGecko/sensor-tracker
[INFO] finished frobbing RustyGecko/sensor-tracker
[INFO] frobbed toml for RustyGecko/sensor-tracker written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/RustyGecko/sensor-tracker/Cargo.toml
[INFO] started frobbing RustyGecko/sensor-tracker
[INFO] finished frobbing RustyGecko/sensor-tracker
[INFO] frobbed toml for RustyGecko/sensor-tracker written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/RustyGecko/sensor-tracker/Cargo.toml
[INFO] crate RustyGecko/sensor-tracker already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/RustyGecko/sensor-tracker/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-alloc.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/cmsis.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-collections.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-core.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/emdrv.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/emlib.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/kits.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-libc.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/modules.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/sensors.git`
[INFO] [stderr]     Updating git repository `https://github.com/sondrele/rust-src.git`
[INFO] [stderr]     Updating git repository `https://github.com/sondrele/gcc-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-unicode.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rlibc.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/startup.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-alloc.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/cmsis.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-collections.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-core.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/emdrv.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/emlib.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/kits.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-libc.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/modules.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/sensors.git`
[INFO] [stderr]     Updating git repository `https://github.com/sondrele/rust-src.git`
[INFO] [stderr]     Updating git repository `https://github.com/sondrele/gcc-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rust-unicode.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/rlibc.git`
[INFO] [stderr]     Updating git repository `https://github.com/RustyGecko/startup.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking RustyGecko/sensor-tracker against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/RustyGecko/sensor-tracker:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f47152a46387858449cf4b27d0547611c70d9adc0977d1b537cbae907d00d4c4
[INFO] running `"docker" "start" "-a" "f47152a46387858449cf4b27d0547611c70d9adc0977d1b537cbae907d00d4c4"`
[INFO] [stderr]     Checking sensor-tracker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0259]: the name `core` is defined multiple times
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | extern crate core;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^ `core` reimported here
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` must be defined only once in the type namespace of this module
[INFO] [stderr] help: you can use `as` to change the binding name of the import
[INFO] [stderr]   |
[INFO] [stderr] 6 | extern crate core as other_core;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `emlib`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | extern crate emlib;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0259, E0463.
[INFO] [stderr] For more information about an error, try `rustc --explain E0259`.
[INFO] [stderr] error: Could not compile `sensor-tracker`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0259]: the name `core` is defined multiple times
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | extern crate core;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^ `core` reimported here
[INFO] [stderr]   |
[INFO] [stderr]   = note: `core` must be defined only once in the type namespace of this module
[INFO] [stderr] help: you can use `as` to change the binding name of the import
[INFO] [stderr]   |
[INFO] [stderr] 6 | extern crate core as other_core;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `emlib`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | extern crate emlib;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0259, E0463.
[INFO] [stderr] For more information about an error, try `rustc --explain E0259`.
[INFO] [stderr] error: Could not compile `sensor-tracker`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f47152a46387858449cf4b27d0547611c70d9adc0977d1b537cbae907d00d4c4"`
[INFO] running `"docker" "rm" "-f" "f47152a46387858449cf4b27d0547611c70d9adc0977d1b537cbae907d00d4c4"`
[INFO] [stdout] f47152a46387858449cf4b27d0547611c70d9adc0977d1b537cbae907d00d4c4