[INFO] updating cached repository jburell/mini-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jburell/mini-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jburell/mini-rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jburell/mini-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jburell/mini-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jburell/mini-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jburell/mini-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jburell/mini-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ac41ed202a074c2ae0714a3c211945f168d1173
[INFO] sha for GitHub repo jburell/mini-rs: 8ac41ed202a074c2ae0714a3c211945f168d1173
[INFO] validating manifest of jburell/mini-rs 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 jburell/mini-rs 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 jburell/mini-rs
[INFO] finished frobbing jburell/mini-rs
[INFO] frobbed toml for jburell/mini-rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jburell/mini-rs/Cargo.toml
[INFO] started frobbing jburell/mini-rs
[INFO] finished frobbing jburell/mini-rs
[INFO] frobbed toml for jburell/mini-rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jburell/mini-rs/Cargo.toml
[INFO] crate jburell/mini-rs 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jburell/mini-rs 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/jburell/mini-rs:/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] 2b04d7298b0658e5230d265f9679ccc384d73fd31116b442701baae4cf1338ca
[INFO] running `"docker" "start" "-a" "2b04d7298b0658e5230d265f9679ccc384d73fd31116b442701baae4cf1338ca"`
[INFO] [stderr]     Checking mini-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0464]: multiple matching crates for `libc`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | extern crate libc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: candidates:
[INFO] [stderr]           crate `libc`: /opt/crater/rustup-home/toolchains/266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b599ebe20a53c099.rlib
[INFO] [stderr]           crate `libc`: /opt/crater/rustup-home/toolchains/266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-13e80033fde976e6.rlib
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `libc`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | extern crate libc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `mini-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0464]: multiple matching crates for `libc`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | extern crate libc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: candidates:
[INFO] [stderr]           crate `libc`: /opt/crater/rustup-home/toolchains/266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b599ebe20a53c099.rlib
[INFO] [stderr]           crate `libc`: /opt/crater/rustup-home/toolchains/266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-13e80033fde976e6.rlib
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `libc`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | extern crate libc;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `mini-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2b04d7298b0658e5230d265f9679ccc384d73fd31116b442701baae4cf1338ca"`
[INFO] running `"docker" "rm" "-f" "2b04d7298b0658e5230d265f9679ccc384d73fd31116b442701baae4cf1338ca"`
[INFO] [stdout] 2b04d7298b0658e5230d265f9679ccc384d73fd31116b442701baae4cf1338ca