[INFO] cloning repository https://github.com/megahomyak/remarklib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/megahomyak/remarklib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmegahomyak%2Fremarklib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmegahomyak%2Fremarklib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c47dcfe08db7a6c163d3fcb7c2f6b013ad09df39
[INFO] checking megahomyak/remarklib against master#a5db378dc14a40dd1580c27fb8362156446382c3 for pr-136490
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmegahomyak%2Fremarklib" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/megahomyak/remarklib on toolchain a5db378dc14a40dd1580c27fb8362156446382c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/megahomyak/remarklib
[INFO] finished tweaking git repo https://github.com/megahomyak/remarklib
[INFO] tweaked toml for git repo https://github.com/megahomyak/remarklib written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/megahomyak/remarklib 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" "+a5db378dc14a40dd1580c27fb8362156446382c3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0e710ade47d4cb3899aefac300e9ebf1d64d25fa718f895e4fbf39e425d9114
[INFO] running `Command { std: "docker" "start" "-a" "f0e710ade47d4cb3899aefac300e9ebf1d64d25fa718f895e4fbf39e425d9114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0e710ade47d4cb3899aefac300e9ebf1d64d25fa718f895e4fbf39e425d9114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e710ade47d4cb3899aefac300e9ebf1d64d25fa718f895e4fbf39e425d9114", kill_on_drop: false }`
[INFO] [stdout] f0e710ade47d4cb3899aefac300e9ebf1d64d25fa718f895e4fbf39e425d9114
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47cb52ae7d419f2ab3ee1081c10ec0ce52b9c4732626f2fa7627439e1cc17013
[INFO] running `Command { std: "docker" "start" "-a" "47cb52ae7d419f2ab3ee1081c10ec0ce52b9c4732626f2fa7627439e1cc17013", kill_on_drop: false }`
[INFO] [stderr]     Checking remark-core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0525]: expected a closure that implements the `FnMut` trait, but this closure only implements `FnOnce`
[INFO] [stdout]    --> src/lib.rs:219:52
[INFO] [stdout]     |
[INFO] [stdout] 219 |   ...                   substitution: Box::new(move |_parameters: &Parameters| {
[INFO] [stdout]     |                                       -        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this closure implements `FnOnce`, not `FnMut`
[INFO] [stdout]     |  _____________________________________|
[INFO] [stdout]     | |
[INFO] [stdout] 220 | | ...                       create_result(replacement)
[INFO] [stdout]     | |                                         ----------- closure is `FnOnce` because it moves the variable `replacement` out of its environment
[INFO] [stdout] 221 | | ...                   }),
[INFO] [stdout]     | |________________________- the requirement to implement `FnMut` derives from here
[INFO] [stdout]     |
[INFO] [stdout] note: required for `{closure@src/lib.rs:219:52: 219:83}` to implement `Substitution`
[INFO] [stdout]    --> src/lib.rs:17:51
[INFO] [stdout]     |
[INFO] [stdout] 17  | impl<T: FnMut(&Parameters) -> SubstitutionResult> Substitution for T {
[INFO] [stdout]     |         ----------------------------------------  ^^^^^^^^^^^^     ^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         unsatisfied trait bound introduced here
[INFO] [stdout]     = note: required for the cast from `Box<{closure@src/lib.rs:219:52: 219:83}>` to `Box<(dyn Substitution + 'static)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0525`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `remark-core` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "47cb52ae7d419f2ab3ee1081c10ec0ce52b9c4732626f2fa7627439e1cc17013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cb52ae7d419f2ab3ee1081c10ec0ce52b9c4732626f2fa7627439e1cc17013", kill_on_drop: false }`
[INFO] [stdout] 47cb52ae7d419f2ab3ee1081c10ec0ce52b9c4732626f2fa7627439e1cc17013