[INFO] cloning repository https://github.com/sammyfilly/Letting-kstring [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sammyfilly/Letting-kstring" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsammyfilly%2FLetting-kstring", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsammyfilly%2FLetting-kstring'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5997d7a8b0c51fa5d99a4e38d1ac401bc81fc1e5 [INFO] checking sammyfilly/Letting-kstring against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsammyfilly%2FLetting-kstring" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sammyfilly/Letting-kstring on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sammyfilly/Letting-kstring [INFO] finished tweaking git repo https://github.com/sammyfilly/Letting-kstring [INFO] tweaked toml for git repo https://github.com/sammyfilly/Letting-kstring written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sammyfilly/Letting-kstring 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded document-features v0.2.6 [INFO] [stderr] Downloaded clap v4.3.0 [INFO] [stderr] Downloaded litrs v0.2.3 [INFO] [stderr] Downloaded clap_builder v4.3.0 [INFO] [stderr] Downloaded proptest v1.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 54182cc90f107cf01a4b9e617c7a22608c399341288d726790392d494326a0c2 [INFO] running `Command { std: "docker" "start" "-a" "54182cc90f107cf01a4b9e617c7a22608c399341288d726790392d494326a0c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "54182cc90f107cf01a4b9e617c7a22608c399341288d726790392d494326a0c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54182cc90f107cf01a4b9e617c7a22608c399341288d726790392d494326a0c2", kill_on_drop: false }` [INFO] [stdout] 54182cc90f107cf01a4b9e617c7a22608c399341288d726790392d494326a0c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8b7ae263d33baa11b1ef2d4000edaf0642af0a7e7f50caa76d45bb88b30d7989 [INFO] running `Command { std: "docker" "start" "-a" "8b7ae263d33baa11b1ef2d4000edaf0642af0a7e7f50caa76d45bb88b30d7989", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.144 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.90 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling serde_derive v1.0.145 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Compiling libm v0.2.7 [INFO] [stderr] Compiling serde v1.0.145 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rustix v0.37.19 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking fastrand v1.7.0 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking ciborium-io v0.2.0 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking anstyle v1.0.0 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Checking clap_lex v0.5.0 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking clap_builder v4.3.0 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking ciborium-ll v0.2.0 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking regex v1.5.5 [INFO] [stderr] Checking clap v4.3.0 [INFO] [stderr] Checking unarray v0.1.4 [INFO] [stderr] Checking once_cell v1.17.2 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking is-terminal v0.4.7 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking proptest v1.2.0 [INFO] [stderr] Checking kstring v2.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking ciborium v0.2.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.64s [INFO] running `Command { std: "docker" "inspect" "8b7ae263d33baa11b1ef2d4000edaf0642af0a7e7f50caa76d45bb88b30d7989", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b7ae263d33baa11b1ef2d4000edaf0642af0a7e7f50caa76d45bb88b30d7989", kill_on_drop: false }` [INFO] [stdout] 8b7ae263d33baa11b1ef2d4000edaf0642af0a7e7f50caa76d45bb88b30d7989 [INFO] checking sammyfilly/Letting-kstring against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsammyfilly%2FLetting-kstring" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sammyfilly/Letting-kstring on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sammyfilly/Letting-kstring [INFO] finished tweaking git repo https://github.com/sammyfilly/Letting-kstring [INFO] tweaked toml for git repo https://github.com/sammyfilly/Letting-kstring written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sammyfilly/Letting-kstring 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8bfa08b4478c87d6ba3fb946c07eae2d16ab14f55fcd2bb2843959badce1c4a6 [INFO] running `Command { std: "docker" "start" "-a" "8bfa08b4478c87d6ba3fb946c07eae2d16ab14f55fcd2bb2843959badce1c4a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8bfa08b4478c87d6ba3fb946c07eae2d16ab14f55fcd2bb2843959badce1c4a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bfa08b4478c87d6ba3fb946c07eae2d16ab14f55fcd2bb2843959badce1c4a6", kill_on_drop: false }` [INFO] [stdout] 8bfa08b4478c87d6ba3fb946c07eae2d16ab14f55fcd2bb2843959badce1c4a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9db0e5113e7410fd1e57cb3dd7d00fd1d5fd3eda004029e44717a7ebd6e3b3d5 [INFO] running `Command { std: "docker" "start" "-a" "9db0e5113e7410fd1e57cb3dd7d00fd1d5fd3eda004029e44717a7ebd6e3b3d5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.144 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling syn v1.0.90 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling serde_derive v1.0.145 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Compiling serde v1.0.145 [INFO] [stderr] Compiling libm v0.2.7 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rustix v0.37.19 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking fastrand v1.7.0 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking ciborium-io v0.2.0 [INFO] [stderr] Checking clap_lex v0.5.0 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking anstyle v1.0.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking ciborium-ll v0.2.0 [INFO] [stderr] Checking clap_builder v4.3.0 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking clap v4.3.0 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking regex v1.5.5 [INFO] [stderr] Checking is-terminal v0.4.7 [INFO] [stderr] Checking unarray v0.1.4 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking once_cell v1.17.2 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking kstring v2.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking proptest v1.2.0 [INFO] [stderr] Checking ciborium v0.2.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.74s [INFO] running `Command { std: "docker" "inspect" "9db0e5113e7410fd1e57cb3dd7d00fd1d5fd3eda004029e44717a7ebd6e3b3d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9db0e5113e7410fd1e57cb3dd7d00fd1d5fd3eda004029e44717a7ebd6e3b3d5", kill_on_drop: false }` [INFO] [stdout] 9db0e5113e7410fd1e57cb3dd7d00fd1d5fd3eda004029e44717a7ebd6e3b3d5