[INFO] fetching crate binread 2.2.0...
[INFO] checking binread-2.2.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate binread 2.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate binread 2.2.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binread 2.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate binread 2.2.0
[INFO] tweaked toml for crates.io crate binread 2.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded modular-bitfield-impl v0.9.0
[INFO] [stderr]   Downloaded modular-bitfield v0.9.0
[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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbac18e7632b50fc266a70253a3efa63b8b76d9a5eb60a40e43dbbf54006c07c
[INFO] running `Command { std: "docker" "start" "-a" "cbac18e7632b50fc266a70253a3efa63b8b76d9a5eb60a40e43dbbf54006c07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbac18e7632b50fc266a70253a3efa63b8b76d9a5eb60a40e43dbbf54006c07c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbac18e7632b50fc266a70253a3efa63b8b76d9a5eb60a40e43dbbf54006c07c", kill_on_drop: false }`
[INFO] [stdout] cbac18e7632b50fc266a70253a3efa63b8b76d9a5eb60a40e43dbbf54006c07c
[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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e06895b0aa0bf68e06347232e69ae5cbfac20028f864269fab08346c6d34a845
[INFO] running `Command { std: "docker" "start" "-a" "e06895b0aa0bf68e06347232e69ae5cbfac20028f864269fab08346c6d34a845", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling trybuild v1.0.89
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking basic-toml v0.1.8
[INFO] [stderr]    Compiling modular-bitfield-impl v0.9.0
[INFO] [stderr]    Compiling binread_derive v2.1.0
[INFO] [stderr]     Checking modular-bitfield v0.9.0
[INFO] [stderr]     Checking binread v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `binread_impls::*`
[INFO] [stdout]    --> src/lib.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub use binread_impls::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `binread_impls::*`
[INFO] [stdout]    --> src/lib.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub use binread_impls::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `by_ref` is never used
[INFO] [stdout]   --> src/io/no_std.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub trait Read {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn by_ref(&mut self) -> &mut Self
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `End` and `Current` are never constructed
[INFO] [stdout]   --> src/io/no_std.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub enum SeekFrom {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 84 |     Start(u64),
[INFO] [stdout] 85 |     End(i64),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 86 |     Current(i64),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SeekFrom` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stream_position` is never used
[INFO] [stdout]   --> src/io/no_std.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub trait Seek {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] 90 |     fn seek(&mut self, pos: SeekFrom) -> Result<u64>;
[INFO] [stdout] 91 |     fn stream_position(&mut self) -> Result<u64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/derive/enums.rs:72:15
[INFO] [stdout]    |
[INFO] [stdout] 72 |         One { a: u16 },
[INFO] [stdout]    |         ---   ^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/derive/enums.rs:74:15
[INFO] [stdout]    |
[INFO] [stdout] 74 |         Two { a: u16 },
[INFO] [stdout]    |         ---   ^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]    --> tests/derive/enums.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         A { a: u8, b: u8 },
[INFO] [stdout]     |         -   ^      ^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]    --> tests/derive/enums.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         B { a: u16, b: u8 },
[INFO] [stdout]     |         -   ^       ^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]    --> tests/derive/enums.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         A {
[INFO] [stdout]     |         - fields in this variant
[INFO] [stdout] 117 |             a: u8,
[INFO] [stdout]     |             ^
[INFO] [stdout] ...
[INFO] [stdout] 120 |             b: u16,
[INFO] [stdout]     |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]    --> tests/derive/enums.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |         A { a: u8, b: u8 },
[INFO] [stdout]     |         -   ^      ^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> tests/derive/enums.rs:150:15
[INFO] [stdout]     |
[INFO] [stdout] 150 |         One { a: u16 },
[INFO] [stdout]     |         ---   ^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]    --> tests/derive/enums.rs:152:15
[INFO] [stdout]     |
[INFO] [stdout] 152 |         Two { a: u16 },
[INFO] [stdout]     |         ---   ^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `extra_entry_count`, `entries`, `start_as_none`, and `calc_test` are never read
[INFO] [stdout]   --> tests/derive/structs.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     struct Test {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 16 |         extra_entry_count: u32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |         entries: Vec<FilePtr<u32, TestEntry>>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |         start_as_none: Option<PlainObject>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |         calc_test: u32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `entry_num`, `offsets`, `name`, and `extra_val` are never read
[INFO] [stdout]   --> tests/derive/structs.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     struct TestEntry {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 43 |         #[br(map = |val: u32| val.to_string())]
[INFO] [stdout] 44 |         entry_num: String,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |         offsets: (u16, u16),
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |         name: Option<FilePtr<u32, NullString>>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |         extra_val: u8,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestEntry` 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 `a` is never read
[INFO] [stdout]   --> tests/derive/structs.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     struct Test {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 66 |         #[br(assert(a == 1))]
[INFO] [stdout] 67 |         a: u8,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Test` 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 `a` is never read
[INFO] [stdout]   --> tests/derive/structs.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     struct Test {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 88 |         #[br(assert(a == 1, Oops(a)))]
[INFO] [stdout] 89 |         a: u8,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Test` 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 `a` is never read
[INFO] [stdout]    --> tests/derive/structs.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |     struct Test {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 102 |         #[br(assert(a == 1, "a was {}", a))]
[INFO] [stdout] 103 |         a: u8,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Test` 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 `b` is never read
[INFO] [stdout]    --> tests/derive/structs.rs:312:9
[INFO] [stdout]     |
[INFO] [stdout] 309 |     struct Test {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 312 |         b: u8,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]    --> tests/derive/structs.rs:324:9
[INFO] [stdout]     |
[INFO] [stdout] 323 |     struct Test {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 324 |         a: u8,
[INFO] [stdout]     |         ^
[INFO] [stdout] 325 |         b: u8,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]    --> tests/derive/structs.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 337 |     struct Test {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 338 |         a: u8,
[INFO] [stdout]     |         ^
[INFO] [stdout] ...
[INFO] [stdout] 341 |         b: u16,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]    --> tests/derive/structs.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 353 |     struct Test {
[INFO] [stdout]     |            ---- fields in this struct
[INFO] [stdout] 354 |         a: u8,
[INFO] [stdout]     |         ^
[INFO] [stdout] ...
[INFO] [stdout] 358 |         b: u8,
[INFO] [stdout]     |         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.40s
[INFO] running `Command { std: "docker" "inspect" "e06895b0aa0bf68e06347232e69ae5cbfac20028f864269fab08346c6d34a845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e06895b0aa0bf68e06347232e69ae5cbfac20028f864269fab08346c6d34a845", kill_on_drop: false }`
[INFO] [stdout] e06895b0aa0bf68e06347232e69ae5cbfac20028f864269fab08346c6d34a845
