[INFO] cloning repository https://github.com/shff/combinators [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shff/combinators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshff%2Fcombinators", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshff%2Fcombinators'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 39cf6195659d57c55f3a0c835c1f63197adf6d9f [INFO] checking shff/combinators against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshff%2Fcombinators" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shff/combinators on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shff/combinators [INFO] finished tweaking git repo https://github.com/shff/combinators [INFO] tweaked toml for git repo https://github.com/shff/combinators written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/shff/combinators already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 16894b193796c20bc3a7b93c7a6eb03bf8001e35509ce29bc45d5fc17bfb3a8c [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" "16894b193796c20bc3a7b93c7a6eb03bf8001e35509ce29bc45d5fc17bfb3a8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16894b193796c20bc3a7b93c7a6eb03bf8001e35509ce29bc45d5fc17bfb3a8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16894b193796c20bc3a7b93c7a6eb03bf8001e35509ce29bc45d5fc17bfb3a8c", kill_on_drop: false }` [INFO] [stdout] 16894b193796c20bc3a7b93c7a6eb03bf8001e35509ce29bc45d5fc17bfb3a8c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c60f9d8a1283ac1e93a883dbf9354fae0e35982c0cffd10a3a73b0ddcdbb791d [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" "c60f9d8a1283ac1e93a883dbf9354fae0e35982c0cffd10a3a73b0ddcdbb791d", kill_on_drop: false }` [INFO] [stderr] Checking tangl v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `assignment` [INFO] [stdout] --> src/lib.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn assignment<'a>() -> impl Fn(&'a str) -> ParseResult<(&'a str, &'a str)> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `identifier` [INFO] [stdout] --> src/lib.rs:17:4 [INFO] [stdout] | [INFO] [stdout] 17 | fn identifier<'a>() -> impl Fn(&'a str) -> ParseResult<&'a str> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `token` [INFO] [stdout] --> src/lib.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn token<'a>(token: &'a str) -> impl Fn(&'a str) -> ParseResult<&'a str> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `left` [INFO] [stdout] --> src/lib.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn left<'a, A, B, X, Y>(a: A, b: B) -> impl Fn(&'a str) -> ParseResult [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `right` [INFO] [stdout] --> src/lib.rs:40:4 [INFO] [stdout] | [INFO] [stdout] 40 | fn right<'a, A, B, X, Y>(a: A, b: B) -> impl Fn(&'a str) -> ParseResult [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `middle` [INFO] [stdout] --> src/lib.rs:48:4 [INFO] [stdout] | [INFO] [stdout] 48 | fn middle<'a, A, B, C, X, Y, Z>(a: A, b: B, c: C) -> impl Fn(&'a str) -> ParseResult [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `outer` [INFO] [stdout] --> src/lib.rs:57:4 [INFO] [stdout] | [INFO] [stdout] 57 | fn outer<'a, A, B, C, X, Y, Z>(a: A, b: B, c: C) -> impl Fn(&'a str) -> ParseResult<(X, Z)> [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pair` [INFO] [stdout] --> src/lib.rs:66:4 [INFO] [stdout] | [INFO] [stdout] 66 | fn pair<'a, A, B, X, Y>(a: A, b: B) -> impl Fn(&'a str) -> ParseResult<(X, Y)> [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `opt` [INFO] [stdout] --> src/lib.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn opt<'a, P, R>(p: P) -> impl Fn(&'a str) -> ParseResult> [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `map` [INFO] [stdout] --> src/lib.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn map<'a, P, F, A, B>(p: P, f: F) -> impl Fn(&'a str) -> ParseResult [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `many` [INFO] [stdout] --> src/lib.rs:89:4 [INFO] [stdout] | [INFO] [stdout] 89 | fn many<'a, P, R>(p: P) -> impl Fn(&'a str) -> ParseResult> [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take` [INFO] [stdout] --> src/lib.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn take<'a, P>(p: P) -> impl Fn(&'a str) -> ParseResult<&str> [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `taken` [INFO] [stdout] --> src/lib.rs:113:4 [INFO] [stdout] | [INFO] [stdout] 113 | fn taken<'a, P>(p: P) -> impl Fn(&'a str) -> ParseResult<&str> [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `join` [INFO] [stdout] --> src/lib.rs:124:4 [INFO] [stdout] | [INFO] [stdout] 124 | fn join<'a, P, T>(p: P) -> impl Fn(&'a str) -> ParseResult<&str> [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `w` [INFO] [stdout] --> src/lib.rs:134:4 [INFO] [stdout] | [INFO] [stdout] 134 | fn w<'a, F, T>(f: F) -> impl Fn(&'a str) -> ParseResult [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `Command { std: "docker" "inspect" "c60f9d8a1283ac1e93a883dbf9354fae0e35982c0cffd10a3a73b0ddcdbb791d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c60f9d8a1283ac1e93a883dbf9354fae0e35982c0cffd10a3a73b0ddcdbb791d", kill_on_drop: false }` [INFO] [stdout] c60f9d8a1283ac1e93a883dbf9354fae0e35982c0cffd10a3a73b0ddcdbb791d