[INFO] cloning repository https://github.com/OlivierLemoine/fun-with-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OlivierLemoine/fun-with-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOlivierLemoine%2Ffun-with-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOlivierLemoine%2Ffun-with-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0fbaa56f732fa1c0a3bec2ad267e62e284582a86 [INFO] checking OlivierLemoine/fun-with-rust/0fbaa56f732fa1c0a3bec2ad267e62e284582a86 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOlivierLemoine%2Ffun-with-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/OlivierLemoine/fun-with-rust on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/OlivierLemoine/fun-with-rust [INFO] finished tweaking git repo https://github.com/OlivierLemoine/fun-with-rust [INFO] tweaked toml for git repo https://github.com/OlivierLemoine/fun-with-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/OlivierLemoine/fun-with-rust 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ff7c7802f850c1c4f869ad4da036b676fdfd056eeee72d3576d3c88015927e71 [INFO] running `Command { std: "docker" "start" "-a" "ff7c7802f850c1c4f869ad4da036b676fdfd056eeee72d3576d3c88015927e71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff7c7802f850c1c4f869ad4da036b676fdfd056eeee72d3576d3c88015927e71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff7c7802f850c1c4f869ad4da036b676fdfd056eeee72d3576d3c88015927e71", kill_on_drop: false }` [INFO] [stdout] ff7c7802f850c1c4f869ad4da036b676fdfd056eeee72d3576d3c88015927e71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 36f748e38f08c7999c8df952464ebc02c989d52c7e37bc884f6db12b07c3988d [INFO] running `Command { std: "docker" "start" "-a" "36f748e38f08c7999c8df952464ebc02c989d52c7e37bc884f6db12b07c3988d", kill_on_drop: false }` [INFO] [stderr] Checking fun-with-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:55:13 [INFO] [stdout] | [INFO] [stdout] 28 | impl SizeProofVec { [INFO] [stdout] | - expected this type parameter [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn merge(mut self, other: SizeProofVec>) -> SizeProofVec { [INFO] [stdout] | ------------------------- expected `SizeProofVec` because of return type [INFO] [stdout] ... [INFO] [stdout] 55 | s [INFO] [stdout] | ^ expected `SizeProofVec`, found `SizeProofVec>` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `SizeProofVec<_, N>` [INFO] [stdout] found struct `SizeProofVec<_, Suc>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:55:13 [INFO] [stdout] | [INFO] [stdout] 28 | impl SizeProofVec { [INFO] [stdout] | - expected this type parameter [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn merge(mut self, other: SizeProofVec>) -> SizeProofVec { [INFO] [stdout] | ------------------------- expected `SizeProofVec` because of return type [INFO] [stdout] ... [INFO] [stdout] 55 | s [INFO] [stdout] | ^ expected `SizeProofVec`, found `SizeProofVec>` [INFO] [stdout] | [INFO] [stdout] = note: expected struct `SizeProofVec<_, N>` [INFO] [stdout] found struct `SizeProofVec<_, Suc>` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | mut self, [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:114:9 [INFO] [stdout] | [INFO] [stdout] 114 | let a = a.merge(b); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | mut self, [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:114:9 [INFO] [stdout] | [INFO] [stdout] 114 | let a = a.merge(b); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `fun-with-rust` (bin "fun-with-rust") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `fun-with-rust` (bin "fun-with-rust" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "36f748e38f08c7999c8df952464ebc02c989d52c7e37bc884f6db12b07c3988d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36f748e38f08c7999c8df952464ebc02c989d52c7e37bc884f6db12b07c3988d", kill_on_drop: false }` [INFO] [stdout] 36f748e38f08c7999c8df952464ebc02c989d52c7e37bc884f6db12b07c3988d