[INFO] cloning repository https://github.com/416365416c/rust-filer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/416365416c/rust-filer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F416365416c%2Frust-filer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F416365416c%2Frust-filer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9410c42dea83e38502592743cbcd1721c00dad15 [INFO] checking 416365416c/rust-filer against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F416365416c%2Frust-filer" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/416365416c/rust-filer 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/416365416c/rust-filer [INFO] finished tweaking git repo https://github.com/416365416c/rust-filer [INFO] tweaked toml for git repo https://github.com/416365416c/rust-filer written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/416365416c/rust-filer 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] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.88 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0d9002b57cd6efd446b5fdd49127fb66602d04ce724f1a5c7c78b1646b408759 [INFO] running `Command { std: "docker" "start" "-a" "0d9002b57cd6efd446b5fdd49127fb66602d04ce724f1a5c7c78b1646b408759", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d9002b57cd6efd446b5fdd49127fb66602d04ce724f1a5c7c78b1646b408759", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d9002b57cd6efd446b5fdd49127fb66602d04ce724f1a5c7c78b1646b408759", kill_on_drop: false }` [INFO] [stdout] 0d9002b57cd6efd446b5fdd49127fb66602d04ce724f1a5c7c78b1646b408759 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e97bc75453a0ab0a7da76cc6c7aa701ddb753cc647a8a49832d05a17b28ca2c3 [INFO] running `Command { std: "docker" "start" "-a" "e97bc75453a0ab0a7da76cc6c7aa701ddb753cc647a8a49832d05a17b28ca2c3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking env_logger v0.8.3 [INFO] [stderr] Checking rust_filer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `allow_idx` [INFO] [stdout] --> src/lib.rs:126:29 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_allow_idx` [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/lib.rs:126:25 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [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: `allow_idx` [INFO] [stdout] --> src/lib.rs:126:29 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_allow_idx` [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/lib.rs:126:25 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [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: 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 3.13s [INFO] running `Command { std: "docker" "inspect" "e97bc75453a0ab0a7da76cc6c7aa701ddb753cc647a8a49832d05a17b28ca2c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e97bc75453a0ab0a7da76cc6c7aa701ddb753cc647a8a49832d05a17b28ca2c3", kill_on_drop: false }` [INFO] [stdout] e97bc75453a0ab0a7da76cc6c7aa701ddb753cc647a8a49832d05a17b28ca2c3 [INFO] checking 416365416c/rust-filer against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F416365416c%2Frust-filer" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/416365416c/rust-filer 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/416365416c/rust-filer [INFO] finished tweaking git repo https://github.com/416365416c/rust-filer [INFO] tweaked toml for git repo https://github.com/416365416c/rust-filer written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/416365416c/rust-filer 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 14b9d86be1360fc7513a7782b9935fa72be05d936e7606bb3726b22c22ace09c [INFO] running `Command { std: "docker" "start" "-a" "14b9d86be1360fc7513a7782b9935fa72be05d936e7606bb3726b22c22ace09c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "14b9d86be1360fc7513a7782b9935fa72be05d936e7606bb3726b22c22ace09c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14b9d86be1360fc7513a7782b9935fa72be05d936e7606bb3726b22c22ace09c", kill_on_drop: false }` [INFO] [stdout] 14b9d86be1360fc7513a7782b9935fa72be05d936e7606bb3726b22c22ace09c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6682540fff35da492c600ecc54052b2788f80204de9d123c90a7b3175e2ec493 [INFO] running `Command { std: "docker" "start" "-a" "6682540fff35da492c600ecc54052b2788f80204de9d123c90a7b3175e2ec493", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking env_logger v0.8.3 [INFO] [stderr] Checking rust_filer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `allow_idx` [INFO] [stdout] --> src/lib.rs:126:29 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_allow_idx` [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/lib.rs:126:25 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `allow_idx` [INFO] [stdout] --> src/lib.rs:126:29 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_allow_idx` [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/lib.rs:126:25 [INFO] [stdout] | [INFO] [stdout] 126 | let mut allow_idx: u32 = INF; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.38s [INFO] running `Command { std: "docker" "inspect" "6682540fff35da492c600ecc54052b2788f80204de9d123c90a7b3175e2ec493", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6682540fff35da492c600ecc54052b2788f80204de9d123c90a7b3175e2ec493", kill_on_drop: false }` [INFO] [stdout] 6682540fff35da492c600ecc54052b2788f80204de9d123c90a7b3175e2ec493