[INFO] cloning repository https://github.com/pineapplehunter/fractions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pineapplehunter/fractions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpineapplehunter%2Ffractions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpineapplehunter%2Ffractions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2682a01a6b053edf5f509c7b57edff333b318c3b
[INFO] testing pineapplehunter/fractions against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpineapplehunter%2Ffractions" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pineapplehunter/fractions on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pineapplehunter/fractions
[INFO] finished tweaking git repo https://github.com/pineapplehunter/fractions
[INFO] tweaked toml for git repo https://github.com/pineapplehunter/fractions written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate git repo https://github.com/pineapplehunter/fractions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3de3b67939ab3ee59e5ce1972b1c95938b434298f97232927c81de270b4914fe
[INFO] running `Command { std: "docker" "start" "-a" "3de3b67939ab3ee59e5ce1972b1c95938b434298f97232927c81de270b4914fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3de3b67939ab3ee59e5ce1972b1c95938b434298f97232927c81de270b4914fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de3b67939ab3ee59e5ce1972b1c95938b434298f97232927c81de270b4914fe", kill_on_drop: false }`
[INFO] [stdout] 3de3b67939ab3ee59e5ce1972b1c95938b434298f97232927c81de270b4914fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74a3d11036eb1ad433185e959108d0c832cdcab87a309bf175387fbdc51a7fc7
[INFO] running `Command { std: "docker" "start" "-a" "74a3d11036eb1ad433185e959108d0c832cdcab87a309bf175387fbdc51a7fc7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fractions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0210]: type parameter `I` must be covered by another type when it appears before the first local type (`Fraction`)
[INFO] [stdout]   --> src/fraction.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl <I: IntoInteger> Mul<Fraction> for I{
[INFO] [stdout]    |       ^ type parameter `I` must be covered by another type when it appears before the first local type (`Fraction`)
[INFO] [stdout]    |
[INFO] [stdout]    = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type
[INFO] [stdout]    = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0210`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fractions` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "74a3d11036eb1ad433185e959108d0c832cdcab87a309bf175387fbdc51a7fc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a3d11036eb1ad433185e959108d0c832cdcab87a309bf175387fbdc51a7fc7", kill_on_drop: false }`
[INFO] [stdout] 74a3d11036eb1ad433185e959108d0c832cdcab87a309bf175387fbdc51a7fc7