[INFO] fetching crate fat32 0.2.0... [INFO] checking fat32-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate fat32 0.2.0 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate fat32 0.2.0 [INFO] finished tweaking crates.io crate fat32 0.2.0 [INFO] tweaked toml for crates.io crate fat32 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate fat32 0.2.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 4 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded block_device v0.1.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d700fbd642f5220f4af7f5c06a816710031cf649fa26f7a19f22d458cc858050 [INFO] running `Command { std: "docker" "start" "-a" "d700fbd642f5220f4af7f5c06a816710031cf649fa26f7a19f22d458cc858050", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d700fbd642f5220f4af7f5c06a816710031cf649fa26f7a19f22d458cc858050", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d700fbd642f5220f4af7f5c06a816710031cf649fa26f7a19f22d458cc858050", kill_on_drop: false }` [INFO] [stdout] d700fbd642f5220f4af7f5c06a816710031cf649fa26f7a19f22d458cc858050 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d1c5d3edc5e670822a3b5a354a58da9b20862381d83436c4cc3fbc5a287f8f1 [INFO] running `Command { std: "docker" "start" "-a" "7d1c5d3edc5e670822a3b5a354a58da9b20862381d83436c4cc3fbc5a287f8f1", kill_on_drop: false }` [INFO] [stderr] Checking block_device v0.1.3 [INFO] [stderr] Checking fat32 v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `file_system` is never read [INFO] [stdout] --> src/bpb.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct BIOSParameterBlock { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | pub(crate) file_system: [u8; 8], [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BIOSParameterBlock` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/volume.rs:75:21 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn root_dir(&self) -> Dir { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 75 | pub fn root_dir(&self) -> Dir<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/dir.rs:326:52 [INFO] [stdout] | [INFO] [stdout] 326 | pub(crate) fn new(device: T, fat: FAT, bpb: &BIOSParameterBlock) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ this lifetime flows to the output [INFO] [stdout] 327 | -> DirIter { [INFO] [stdout] | ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 327 | -> DirIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/file.rs:119:28 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn read_per_sector(&self) -> ReadIter { [INFO] [stdout] | ^^^^^ ----------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 119 | pub fn read_per_sector(&self) -> ReadIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `file_system` is never read [INFO] [stdout] --> src/bpb.rs:13:16 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct BIOSParameterBlock { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 13 | pub(crate) file_system: [u8; 8], [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BIOSParameterBlock` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/volume.rs:75:21 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn root_dir(&self) -> Dir { [INFO] [stdout] | ^^^^^ ------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 75 | pub fn root_dir(&self) -> Dir<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/dir.rs:326:52 [INFO] [stdout] | [INFO] [stdout] 326 | pub(crate) fn new(device: T, fat: FAT, bpb: &BIOSParameterBlock) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ this lifetime flows to the output [INFO] [stdout] 327 | -> DirIter { [INFO] [stdout] | ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 327 | -> DirIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/file.rs:119:28 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn read_per_sector(&self) -> ReadIter { [INFO] [stdout] | ^^^^^ ----------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 119 | pub fn read_per_sector(&self) -> ReadIter<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "7d1c5d3edc5e670822a3b5a354a58da9b20862381d83436c4cc3fbc5a287f8f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d1c5d3edc5e670822a3b5a354a58da9b20862381d83436c4cc3fbc5a287f8f1", kill_on_drop: false }` [INFO] [stdout] 7d1c5d3edc5e670822a3b5a354a58da9b20862381d83436c4cc3fbc5a287f8f1