[INFO] fetching crate x86 0.52.0...
[INFO] testing x86-0.52.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate x86 0.52.0 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate x86 0.52.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate x86 0.52.0
[INFO] tweaked toml for crates.io crate x86 0.52.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate x86 0.52.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.9.4)
[INFO] [stderr]       Adding klogger v0.0.14 (available: v0.0.16)
[INFO] [stderr]       Adding phf v0.9.0 (available: v0.13.1)
[INFO] [stderr]       Adding phf_codegen v0.9.0 (available: v0.13.1)
[INFO] [stderr]       Adding raw-cpuid v10.7.0 (available: v11.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9c29a5186819b67ba6ef19d31d0c4a901f7a3ffe190a5296bd3feb2c953e5cb
[INFO] running `Command { std: "docker" "start" "-a" "e9c29a5186819b67ba6ef19d31d0c4a901f7a3ffe190a5296bd3feb2c953e5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9c29a5186819b67ba6ef19d31d0c4a901f7a3ffe190a5296bd3feb2c953e5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9c29a5186819b67ba6ef19d31d0c4a901f7a3ffe190a5296bd3feb2c953e5cb", kill_on_drop: false }`
[INFO] [stdout] e9c29a5186819b67ba6ef19d31d0c4a901f7a3ffe190a5296bd3feb2c953e5cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb8d3a0e225feca74120e65b88fd59f7e90a2201e83f7c04615c66217864997d
[INFO] running `Command { std: "docker" "start" "-a" "eb8d3a0e225feca74120e65b88fd59f7e90a2201e83f7c04615c66217864997d", kill_on_drop: false }`
[INFO] [stderr]    Compiling x86 v0.52.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling bit_field v0.10.3
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]   --> src/lib.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub use core::fmt;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ops`
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub use core::ops;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::option`
[INFO] [stdout]   --> src/lib.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub use core::option;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits32/paging.rs:1037:17
[INFO] [stdout]      |
[INFO] [stdout] 1037 | pub struct Page([u8; BASE_PAGE_SIZE]);
[INFO] [stdout]      |            ---- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits32/paging.rs:1040:22
[INFO] [stdout]      |
[INFO] [stdout] 1040 | pub struct LargePage([u8; LARGE_PAGE_SIZE]);
[INFO] [stdout]      |            --------- ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits64/paging.rs:1145:17
[INFO] [stdout]      |
[INFO] [stdout] 1145 | pub struct Page([u8; BASE_PAGE_SIZE]);
[INFO] [stdout]      |            ---- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits64/paging.rs:1148:22
[INFO] [stdout]      |
[INFO] [stdout] 1148 | pub struct LargePage([u8; LARGE_PAGE_SIZE]);
[INFO] [stdout]      |            --------- ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits64/paging.rs:1151:21
[INFO] [stdout]      |
[INFO] [stdout] 1151 | pub struct HugePage([u8; HUGE_PAGE_SIZE]);
[INFO] [stdout]      |            -------- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `Command { std: "docker" "inspect" "eb8d3a0e225feca74120e65b88fd59f7e90a2201e83f7c04615c66217864997d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb8d3a0e225feca74120e65b88fd59f7e90a2201e83f7c04615c66217864997d", kill_on_drop: false }`
[INFO] [stdout] eb8d3a0e225feca74120e65b88fd59f7e90a2201e83f7c04615c66217864997d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de1348eb51f4e5dd9e9fefc37054c22ff2e6e5038d3752c09f59acc0b3b1ea54
[INFO] running `Command { std: "docker" "start" "-a" "de1348eb51f4e5dd9e9fefc37054c22ff2e6e5038d3752c09f59acc0b3b1ea54", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling x86 v0.51.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling termcodes v0.0.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]   --> src/lib.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub use core::fmt;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ops`
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub use core::ops;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::option`
[INFO] [stdout]   --> src/lib.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub use core::option;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits32/paging.rs:1037:17
[INFO] [stdout]      |
[INFO] [stdout] 1037 | pub struct Page([u8; BASE_PAGE_SIZE]);
[INFO] [stdout]      |            ---- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits32/paging.rs:1040:22
[INFO] [stdout]      |
[INFO] [stdout] 1040 | pub struct LargePage([u8; LARGE_PAGE_SIZE]);
[INFO] [stdout]      |            --------- ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits64/paging.rs:1145:17
[INFO] [stdout]      |
[INFO] [stdout] 1145 | pub struct Page([u8; BASE_PAGE_SIZE]);
[INFO] [stdout]      |            ---- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits64/paging.rs:1148:22
[INFO] [stdout]      |
[INFO] [stdout] 1148 | pub struct LargePage([u8; LARGE_PAGE_SIZE]);
[INFO] [stdout]      |            --------- ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/bits64/paging.rs:1151:21
[INFO] [stdout]      |
[INFO] [stdout] 1151 | pub struct HugePage([u8; HUGE_PAGE_SIZE]);
[INFO] [stdout]      |            -------- ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |            |
[INFO] [stdout]      |            field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86-0.51.0/src/lib.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "unstable", feature(step_trait))]
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stdout] error[E0053]: method `steps_between` has an incompatible type for trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86-0.51.0/src/bits64/paging.rs:167:51
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^ expected `(usize, Option<usize>)`, found `Option<usize>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected signature `fn(&bits64::paging::PAddr, &bits64::paging::PAddr) -> (usize, Option<usize>)`
[INFO] [stdout]                found signature `fn(&bits64::paging::PAddr, &bits64::paging::PAddr) -> Option<usize>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]     |
[INFO] [stdout] 167 -     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 167 +     fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `steps_between` has an incompatible type for trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86-0.51.0/src/bits64/paging.rs:507:51
[INFO] [stdout]     |
[INFO] [stdout] 507 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^ expected `(usize, Option<usize>)`, found `Option<usize>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected signature `fn(&bits64::paging::IOAddr, &bits64::paging::IOAddr) -> (usize, Option<usize>)`
[INFO] [stdout]                found signature `fn(&bits64::paging::IOAddr, &bits64::paging::IOAddr) -> Option<usize>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]     |
[INFO] [stdout] 507 -     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 507 +     fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `steps_between` has an incompatible type for trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86-0.51.0/src/bits64/paging.rs:862:51
[INFO] [stdout]     |
[INFO] [stdout] 862 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^ expected `(usize, Option<usize>)`, found `Option<usize>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected signature `fn(&bits64::paging::VAddr, &bits64::paging::VAddr) -> (usize, Option<usize>)`
[INFO] [stdout]                found signature `fn(&bits64::paging::VAddr, &bits64::paging::VAddr) -> Option<usize>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]     |
[INFO] [stdout] 862 -     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 862 +     fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86-0.51.0/src/bits64/paging.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ------------- expected `Option<usize>` because of return type
[INFO] [stdout] 168 |         <u64 as Step>::steps_between(&start.0, &end.0)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option<usize>`, found `(usize, Option<usize>)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Option<usize>`
[INFO] [stdout]               found tuple `(usize, Option<usize>)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86-0.51.0/src/bits64/paging.rs:508:9
[INFO] [stdout]     |
[INFO] [stdout] 507 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ------------- expected `Option<usize>` because of return type
[INFO] [stdout] 508 |         <u64 as Step>::steps_between(&start.0, &end.0)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option<usize>`, found `(usize, Option<usize>)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Option<usize>`
[INFO] [stdout]               found tuple `(usize, Option<usize>)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/x86-0.51.0/src/bits64/paging.rs:863:9
[INFO] [stdout]     |
[INFO] [stdout] 862 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]     |                                                   ------------- expected `Option<usize>` because of return type
[INFO] [stdout] 863 |         <u64 as Step>::steps_between(&start.0, &end.0)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option<usize>`, found `(usize, Option<usize>)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected enum `Option<usize>`
[INFO] [stdout]               found tuple `(usize, Option<usize>)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86` (lib) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "de1348eb51f4e5dd9e9fefc37054c22ff2e6e5038d3752c09f59acc0b3b1ea54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de1348eb51f4e5dd9e9fefc37054c22ff2e6e5038d3752c09f59acc0b3b1ea54", kill_on_drop: false }`
[INFO] [stdout] de1348eb51f4e5dd9e9fefc37054c22ff2e6e5038d3752c09f59acc0b3b1ea54
