[INFO] fetching crate object 0.27.1...
[INFO] checking object-0.27.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate object 0.27.1 into /workspace/builds/worker-66/source
[INFO] validating manifest of crates.io crate object 0.27.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate object 0.27.1
[INFO] finished tweaking crates.io crate object 0.27.1
[INFO] tweaked toml for crates.io crate object 0.27.1 written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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 rustc-std-workspace-core v1.0.0
[INFO] [stderr]   Downloaded wasmparser v0.57.0
[INFO] [stderr]   Downloaded rustc-std-workspace-alloc v1.0.0
[INFO] [stderr]   Downloaded compiler_builtins v0.1.55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4be219c64ab4ca9762d2d42368ea9b31fb2364ec279a12f69d8e9dc35655c4e
[INFO] running `Command { std: "docker" "start" "-a" "b4be219c64ab4ca9762d2d42368ea9b31fb2364ec279a12f69d8e9dc35655c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4be219c64ab4ca9762d2d42368ea9b31fb2364ec279a12f69d8e9dc35655c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4be219c64ab4ca9762d2d42368ea9b31fb2364ec279a12f69d8e9dc35655c4e", kill_on_drop: false }`
[INFO] [stdout] b4be219c64ab4ca9762d2d42368ea9b31fb2364ec279a12f69d8e9dc35655c4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1f73c48d3e20079c30ea79e6b9e964b6e777a5d5d973ac1ead785f206871dba
[INFO] running `Command { std: "docker" "start" "-a" "f1f73c48d3e20079c30ea79e6b9e964b6e777a5d5d973ac1ead785f206871dba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling crc32fast v1.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking object v0.27.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `shndx_section`
[INFO] [stdout]   --> src/read/elf/symbol.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     shndx_section: SectionIndex,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index`
[INFO] [stdout]   --> src/read/elf/comdat.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     index: SectionIndex,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `header`
[INFO] [stdout]   --> src/read/macho/dyld_cache.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     header: &'data macho::DyldCacheHeader<E>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/macho/file.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     file: &'file MachOFile<'data, Mach, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/macho/file.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     file: &'file MachOFile<'data, Mach, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/macho/file.rs:471:5
[INFO] [stdout]     |
[INFO] [stdout] 471 |     file: &'file MachOFile<'data, Mach, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/pe/file.rs:384:5
[INFO] [stdout]     |
[INFO] [stdout] 384 |     file: &'file PeFile<'data, Pe, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/pe/file.rs:414:5
[INFO] [stdout]     |
[INFO] [stdout] 414 |     file: &'file PeFile<'data, Pe, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/pe/file.rs:471:5
[INFO] [stdout]     |
[INFO] [stdout] 471 |     file: &'file PeFile<'data, Pe, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `shndx_section`
[INFO] [stdout]   --> src/read/elf/symbol.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     shndx_section: SectionIndex,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `index`
[INFO] [stdout]   --> src/read/elf/comdat.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     index: SectionIndex,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `header`
[INFO] [stdout]   --> src/read/macho/dyld_cache.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     header: &'data macho::DyldCacheHeader<E>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/macho/file.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     file: &'file MachOFile<'data, Mach, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/macho/file.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     file: &'file MachOFile<'data, Mach, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/macho/file.rs:471:5
[INFO] [stdout]     |
[INFO] [stdout] 471 |     file: &'file MachOFile<'data, Mach, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/pe/file.rs:384:5
[INFO] [stdout]     |
[INFO] [stdout] 384 |     file: &'file PeFile<'data, Pe, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/pe/file.rs:414:5
[INFO] [stdout]     |
[INFO] [stdout] 414 |     file: &'file PeFile<'data, Pe, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]    --> src/read/pe/file.rs:471:5
[INFO] [stdout]     |
[INFO] [stdout] 471 |     file: &'file PeFile<'data, Pe, R>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.56s
[INFO] running `Command { std: "docker" "inspect" "f1f73c48d3e20079c30ea79e6b9e964b6e777a5d5d973ac1ead785f206871dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1f73c48d3e20079c30ea79e6b9e964b6e777a5d5d973ac1ead785f206871dba", kill_on_drop: false }`
[INFO] [stdout] f1f73c48d3e20079c30ea79e6b9e964b6e777a5d5d973ac1ead785f206871dba