[INFO] cloning repository https://github.com/andyrsmith/rust-fib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andyrsmith/rust-fib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandyrsmith%2Frust-fib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandyrsmith%2Frust-fib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9eaba3a1b31d67d549d03fa1b25a81415037d0c
[INFO] checking andyrsmith/rust-fib against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandyrsmith%2Frust-fib" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andyrsmith/rust-fib on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andyrsmith/rust-fib
[INFO] finished tweaking git repo https://github.com/andyrsmith/rust-fib
[INFO] tweaked toml for git repo https://github.com/andyrsmith/rust-fib written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/andyrsmith/rust-fib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec9f7c9e79fde270e071a0b2be25f7b2d25ceecb6156b1865b209c8f28de0a9e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ec9f7c9e79fde270e071a0b2be25f7b2d25ceecb6156b1865b209c8f28de0a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec9f7c9e79fde270e071a0b2be25f7b2d25ceecb6156b1865b209c8f28de0a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec9f7c9e79fde270e071a0b2be25f7b2d25ceecb6156b1865b209c8f28de0a9e", kill_on_drop: false }`
[INFO] [stdout] ec9f7c9e79fde270e071a0b2be25f7b2d25ceecb6156b1865b209c8f28de0a9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00483c0c4fc94e2d276ac67ae1f8992f4145a8b97f5d150fdd38096284d35782
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "00483c0c4fc94e2d276ac67ae1f8992f4145a8b97f5d150fdd38096284d35782", kill_on_drop: false }`
[INFO] [stderr]     Checking fib v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io;
[INFO] [stdout]   |     ^^^^^^^^^^^ no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `old_io` in `std`
[INFO] [stdout]   --> src/main.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |   let mut reader = std::old_io::stdin();
[INFO] [stdout]    |                         ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fib`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io;
[INFO] [stdout]   |     ^^^^^^^^^^^ no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `old_io` in `std`
[INFO] [stdout]   --> src/main.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |   let mut reader = std::old_io::stdin();
[INFO] [stdout]    |                         ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "00483c0c4fc94e2d276ac67ae1f8992f4145a8b97f5d150fdd38096284d35782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00483c0c4fc94e2d276ac67ae1f8992f4145a8b97f5d150fdd38096284d35782", kill_on_drop: false }`
[INFO] [stdout] 00483c0c4fc94e2d276ac67ae1f8992f4145a8b97f5d150fdd38096284d35782