[INFO] fetching crate ffs 0.1.2...
[INFO] checking ffs-0.1.2 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate ffs 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ffs 0.1.2
[INFO] finished tweaking crates.io crate ffs 0.1.2
[INFO] tweaked toml for crates.io crate ffs 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ffs 0.1.2 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ffs 0.1.2 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded page_size v0.4.2
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.18
[INFO] [stderr]   Downloaded fuser v0.9.1
[INFO] [stderr]   Downloaded libc v0.2.95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60520a3eb7ed80d2fc03f3f2b73a81a66c9a203f1e7ce073471ba873f5e6b202
[INFO] running `Command { std: "docker" "start" "-a" "60520a3eb7ed80d2fc03f3f2b73a81a66c9a203f1e7ce073471ba873f5e6b202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60520a3eb7ed80d2fc03f3f2b73a81a66c9a203f1e7ce073471ba873f5e6b202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60520a3eb7ed80d2fc03f3f2b73a81a66c9a203f1e7ce073471ba873f5e6b202", kill_on_drop: false }`
[INFO] [stdout] 60520a3eb7ed80d2fc03f3f2b73a81a66c9a203f1e7ce073471ba873f5e6b202
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b19bb1ad2d62d0bdb2323faec0e71018ffcfb7eea549203818abc927f7aa9564
[INFO] running `Command { std: "docker" "start" "-a" "b19bb1ad2d62d0bdb2323faec0e71018ffcfb7eea549203818abc927f7aa9564", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling fuser v0.9.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling zerocopy-derive v0.3.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking zerocopy v0.5.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.18
[INFO] [stderr]     Checking ffs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/format.rs:635:12
[INFO] [stdout]     |
[INFO] [stdout] 635 |         Io(std::io::Error),
[INFO] [stdout]     |         -- ^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 635 -         Io(std::io::Error),
[INFO] [stdout] 635 +         Io(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/format.rs:798:12
[INFO] [stdout]     |
[INFO] [stdout] 798 |         Io(std::io::Error),
[INFO] [stdout]     |         -- ^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 798 -         Io(std::io::Error),
[INFO] [stdout] 798 +         Io(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/fs.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |     NoSuchInode(u64),
[INFO] [stdout]     |     ----------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FSError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 106 -     NoSuchInode(u64),
[INFO] [stdout] 106 +     NoSuchInode(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/fs.rs:107:18
[INFO] [stdout]     |
[INFO] [stdout] 107 |     InvalidInode(u64),
[INFO] [stdout]     |     ------------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FSError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 107 -     InvalidInode(u64),
[INFO] [stdout] 107 +     InvalidInode(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/format.rs:635:12
[INFO] [stdout]     |
[INFO] [stdout] 635 |         Io(std::io::Error),
[INFO] [stdout]     |         -- ^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 635 -         Io(std::io::Error),
[INFO] [stdout] 635 +         Io(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/format.rs:798:12
[INFO] [stdout]     |
[INFO] [stdout] 798 |         Io(std::io::Error),
[INFO] [stdout]     |         -- ^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 798 -         Io(std::io::Error),
[INFO] [stdout] 798 +         Io(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/fs.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |     NoSuchInode(u64),
[INFO] [stdout]     |     ----------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FSError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 106 -     NoSuchInode(u64),
[INFO] [stdout] 106 +     NoSuchInode(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/fs.rs:107:18
[INFO] [stdout]     |
[INFO] [stdout] 107 |     InvalidInode(u64),
[INFO] [stdout]     |     ------------ ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FSError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 107 -     InvalidInode(u64),
[INFO] [stdout] 107 +     InvalidInode(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.97s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fuser v0.9.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 8`
[INFO] running `Command { std: "docker" "inspect" "b19bb1ad2d62d0bdb2323faec0e71018ffcfb7eea549203818abc927f7aa9564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b19bb1ad2d62d0bdb2323faec0e71018ffcfb7eea549203818abc927f7aa9564", kill_on_drop: false }`
[INFO] [stdout] b19bb1ad2d62d0bdb2323faec0e71018ffcfb7eea549203818abc927f7aa9564
