[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] checking pineapplehunter/fractions against e4d5758286bf2cf6f415802f2cf861747a7c6c8c for pr-152972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpineapplehunter%2Ffractions" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[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-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pineapplehunter/fractions on toolchain e4d5758286bf2cf6f415802f2cf861747a7c6c8c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pineapplehunter/fractions 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" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "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-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9
[INFO] running `Command { std: "docker" "start" "b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9", 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" "b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9" "/opt/rustwide/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9", 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=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9" "/opt/rustwide/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking 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]    |       ^ uncovered type parameter
[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,
[INFO] [stdout]            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`,
[INFO] [stdout]            where `T0` is the first and `Tn` is the last
[INFO] [stdout] 
[INFO] [stdout] 
[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]    |       ^ uncovered type parameter
[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,
[INFO] [stdout]            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`,
[INFO] [stdout]            where `T0` is the first and `Tn` is the last
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0210`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0210`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fractions` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `fractions` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9", kill_on_drop: false }`
[INFO] [stdout] b4d4ebeb3fd3b1a546e8b0ac09e3bf78293c35e47bd53ede40e9c2a187360ef9
