[INFO] cloning repository https://github.com/eldad/memgrep [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eldad/memgrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feldad%2Fmemgrep", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feldad%2Fmemgrep'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 38e2fbe0d3e069f4c0b3c5cef3f121dee3af33ce [INFO] checking eldad/memgrep against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feldad%2Fmemgrep" "/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/eldad/memgrep on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/eldad/memgrep [INFO] finished tweaking git repo https://github.com/eldad/memgrep [INFO] tweaked toml for git repo https://github.com/eldad/memgrep written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/eldad/memgrep 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded clap v4.4.7 [INFO] [stderr] Downloaded anstyle-parse v0.2.2 [INFO] [stderr] Downloaded anstyle-wincon v3.0.1 [INFO] [stderr] Downloaded anstream v0.6.4 [INFO] [stderr] Downloaded clap_builder v4.4.7 [INFO] [stderr] Downloaded memmem v0.1.1 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7f31dda846e8bed7c0d76511153bb8a687d0c2befacb8289d58a9e2dada87faf [INFO] running `Command { std: "docker" "start" "-a" "7f31dda846e8bed7c0d76511153bb8a687d0c2befacb8289d58a9e2dada87faf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7f31dda846e8bed7c0d76511153bb8a687d0c2befacb8289d58a9e2dada87faf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f31dda846e8bed7c0d76511153bb8a687d0c2befacb8289d58a9e2dada87faf", kill_on_drop: false }` [INFO] [stdout] 7f31dda846e8bed7c0d76511153bb8a687d0c2befacb8289d58a9e2dada87faf [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8958484a33f9d22083f95b7b7648e0fad99cace9758d3cc2f589a24cb9f24cbc [INFO] running `Command { std: "docker" "start" "-a" "8958484a33f9d22083f95b7b7648e0fad99cace9758d3cc2f589a24cb9f24cbc", kill_on_drop: false }` [INFO] [stderr] Checking once_cell v1.18.0 [INFO] [stderr] Checking anstyle-query v1.0.0 [INFO] [stderr] Compiling anyhow v1.0.75 [INFO] [stderr] Checking smallvec v1.11.1 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking anstyle-parse v0.2.2 [INFO] [stderr] Checking memmem v0.1.1 [INFO] [stderr] Checking anstream v0.6.4 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking thread_local v1.1.7 [INFO] [stderr] Checking clap_builder v4.4.7 [INFO] [stderr] Checking tracing-log v0.1.4 [INFO] [stderr] Checking tracing-subscriber v0.3.17 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling clap_derive v4.4.7 [INFO] [stderr] Compiling thiserror-impl v1.0.50 [INFO] [stderr] Checking thiserror v1.0.50 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking clap v4.4.7 [INFO] [stderr] Checking memgrep v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/maps.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | File(String), [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 27 | File(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `offset` and `dev` are never read [INFO] [stdout] --> src/maps.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 48 | pub struct MapsRecord { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 64 | pub offset: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 67 | pub dev: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MapsRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/maps.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | File(String), [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 27 | File(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `offset` and `dev` are never read [INFO] [stdout] --> src/maps.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 48 | pub struct MapsRecord { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 64 | pub offset: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 67 | pub dev: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MapsRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.20s [INFO] running `Command { std: "docker" "inspect" "8958484a33f9d22083f95b7b7648e0fad99cace9758d3cc2f589a24cb9f24cbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8958484a33f9d22083f95b7b7648e0fad99cace9758d3cc2f589a24cb9f24cbc", kill_on_drop: false }` [INFO] [stdout] 8958484a33f9d22083f95b7b7648e0fad99cace9758d3cc2f589a24cb9f24cbc [INFO] checking eldad/memgrep against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feldad%2Fmemgrep" "/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/eldad/memgrep on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/eldad/memgrep [INFO] finished tweaking git repo https://github.com/eldad/memgrep [INFO] tweaked toml for git repo https://github.com/eldad/memgrep written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/eldad/memgrep 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 562dfae1984d65475c050099fc2cb3951f6c2c32a45875c9646cdd93e0065cd4 [INFO] running `Command { std: "docker" "start" "-a" "562dfae1984d65475c050099fc2cb3951f6c2c32a45875c9646cdd93e0065cd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "562dfae1984d65475c050099fc2cb3951f6c2c32a45875c9646cdd93e0065cd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "562dfae1984d65475c050099fc2cb3951f6c2c32a45875c9646cdd93e0065cd4", kill_on_drop: false }` [INFO] [stdout] 562dfae1984d65475c050099fc2cb3951f6c2c32a45875c9646cdd93e0065cd4 [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 29422408e5c58d19e8503e2d6a976f6250aba1b0023fd1795dc0889909ee804f [INFO] running `Command { std: "docker" "start" "-a" "29422408e5c58d19e8503e2d6a976f6250aba1b0023fd1795dc0889909ee804f", kill_on_drop: false }` [INFO] [stderr] Checking once_cell v1.18.0 [INFO] [stderr] Checking utf8parse v0.2.1 [INFO] [stderr] Checking colorchoice v1.0.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking anstyle v1.0.4 [INFO] [stderr] Checking anstyle-query v1.0.0 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Compiling anyhow v1.0.75 [INFO] [stderr] Checking clap_lex v0.6.0 [INFO] [stderr] Checking smallvec v1.11.1 [INFO] [stderr] Checking memmem v0.1.1 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking anstyle-parse v0.2.2 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking thread_local v1.1.7 [INFO] [stderr] Checking anstream v0.6.4 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Checking clap_builder v4.4.7 [INFO] [stderr] Checking tracing-log v0.1.4 [INFO] [stderr] Checking tracing-subscriber v0.3.17 [INFO] [stderr] Compiling thiserror-impl v1.0.50 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling clap_derive v4.4.7 [INFO] [stderr] Checking thiserror v1.0.50 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking clap v4.4.7 [INFO] [stderr] Checking memgrep v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/grep.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | Err(GrepError::MaxRegionSizeExceeded(size))?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 33 | Err::(GrepError::MaxRegionSizeExceeded(size))?; [INFO] [stdout] | ++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/grep.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | Err(GrepError::MaxRegionSizeExceeded(size))?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 33 | Err::(GrepError::MaxRegionSizeExceeded(size))?; [INFO] [stdout] | ++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `memgrep` (bin "memgrep" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `memgrep` (bin "memgrep") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "29422408e5c58d19e8503e2d6a976f6250aba1b0023fd1795dc0889909ee804f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "29422408e5c58d19e8503e2d6a976f6250aba1b0023fd1795dc0889909ee804f", kill_on_drop: false }` [INFO] [stdout] 29422408e5c58d19e8503e2d6a976f6250aba1b0023fd1795dc0889909ee804f