[INFO] cloning repository https://github.com/Nyrek2001/supplement_2_8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nyrek2001/supplement_2_8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrek2001%2Fsupplement_2_8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrek2001%2Fsupplement_2_8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76367bd17473e03ff600ffd7d128e2d4fc148c2f
[INFO] fixing Nyrek2001/supplement_2_8 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNyrek2001%2Fsupplement_2_8" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nyrek2001/supplement_2_8
[INFO] finished tweaking git repo https://github.com/Nyrek2001/supplement_2_8
[INFO] tweaked toml for git repo https://github.com/Nyrek2001/supplement_2_8 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nyrek2001/supplement_2_8 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nyrek2001/supplement_2_8 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd
[INFO] running `Command { std: "docker" "start" "9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking mathlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]  --> src/lib.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[no_mangle]
[INFO] [stdout]   |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]   |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[unsafe(no_mangle)]
[INFO] [stdout]   |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]  --> src/lib.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[no_mangle]
[INFO] [stdout]   |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]   |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[unsafe(no_mangle)]
[INFO] [stdout]   |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]   --> src/lib.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]    |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[unsafe(no_mangle)]
[INFO] [stdout]    |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]   --> src/lib.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]    |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[unsafe(no_mangle)]
[INFO] [stdout]    |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]  --> src/lib.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[no_mangle]
[INFO] [stdout]   |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]   |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[unsafe(no_mangle)]
[INFO] [stdout]   |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]  --> src/lib.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[no_mangle]
[INFO] [stdout]   |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]   |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[unsafe(no_mangle)]
[INFO] [stdout]   |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]   --> src/lib.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]    |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[unsafe(no_mangle)]
[INFO] [stdout]    |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unsafe attribute used without unsafe
[INFO] [stdout]   --> src/lib.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[no_mangle]
[INFO] [stdout]    |   ^^^^^^^^^ usage of unsafe attribute
[INFO] [stdout]    |
[INFO] [stdout] help: wrap the attribute in `unsafe(...)`
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[unsafe(no_mangle)]
[INFO] [stdout]    |   +++++++         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mathlib` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mathlib` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd", kill_on_drop: false }`
[INFO] [stdout] 9e97e7d9cea733623b4d2ca3a5e481e0fe673ca17b31ae8b69814028d8e298cd
