[INFO] fetching crate x86reducer 0.1.0...
[INFO] testing x86reducer-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate x86reducer 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate x86reducer 0.1.0
[INFO] finished tweaking crates.io crate x86reducer 0.1.0
[INFO] tweaked toml for crates.io crate x86reducer 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate x86reducer 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate x86reducer 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.6.1
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded os_str_bytes v6.0.0
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded byteorder v1.4.3
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.4
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded heck v0.4.0
[INFO] [stderr]   Downloaded textwrap v0.14.2
[INFO] [stderr]   Downloaded proc-macro-error v1.0.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.36
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded indexmap v1.8.0
[INFO] [stderr]   Downloaded clap v3.0.14
[INFO] [stderr]   Downloaded hashbrown v0.11.2
[INFO] [stderr]   Downloaded itertools v0.10.3
[INFO] [stderr]   Downloaded quote v1.0.15
[INFO] [stderr]   Downloaded clap_derive v3.0.14
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded lazy_static v1.4.0
[INFO] [stderr]   Downloaded version_check v0.9.4
[INFO] [stderr]   Downloaded syn v1.0.86
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded libc v0.2.116
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ad85596e5c1186bd0de20166d707f3dd23925eb9e021fe56f9b2e4fa9473fc5
[INFO] running `Command { std: "docker" "start" "-a" "5ad85596e5c1186bd0de20166d707f3dd23925eb9e021fe56f9b2e4fa9473fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ad85596e5c1186bd0de20166d707f3dd23925eb9e021fe56f9b2e4fa9473fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad85596e5c1186bd0de20166d707f3dd23925eb9e021fe56f9b2e4fa9473fc5", kill_on_drop: false }`
[INFO] [stdout] 5ad85596e5c1186bd0de20166d707f3dd23925eb9e021fe56f9b2e4fa9473fc5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c26e703e51ef6fcea3621ef7d513db5132cff9b2cd84066e73d8455594f5987
[INFO] running `Command { std: "docker" "start" "-a" "8c26e703e51ef6fcea3621ef7d513db5132cff9b2cd84066e73d8455594f5987", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap_derive v3.0.14
[INFO] [stderr]    Compiling clap v3.0.14
[INFO] [stderr]    Compiling x86reducer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/disasm.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     FileIOError(String),
[INFO] [stdout]   |     ----------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DisasmError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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] 6 -     FileIOError(String),
[INFO] [stdout] 6 +     FileIOError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.24s
[INFO] running `Command { std: "docker" "inspect" "8c26e703e51ef6fcea3621ef7d513db5132cff9b2cd84066e73d8455594f5987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c26e703e51ef6fcea3621ef7d513db5132cff9b2cd84066e73d8455594f5987", kill_on_drop: false }`
[INFO] [stdout] 8c26e703e51ef6fcea3621ef7d513db5132cff9b2cd84066e73d8455594f5987
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a376046eb8e0c06a7ad018a82d31a6a689910b42c0fa97f798c7c67f977030ac
[INFO] running `Command { std: "docker" "start" "-a" "a376046eb8e0c06a7ad018a82d31a6a689910b42c0fa97f798c7c67f977030ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling x86reducer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/disasm.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     FileIOError(String),
[INFO] [stdout]   |     ----------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DisasmError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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] 6 -     FileIOError(String),
[INFO] [stdout] 6 +     FileIOError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "a376046eb8e0c06a7ad018a82d31a6a689910b42c0fa97f798c7c67f977030ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a376046eb8e0c06a7ad018a82d31a6a689910b42c0fa97f798c7c67f977030ac", kill_on_drop: false }`
[INFO] [stdout] a376046eb8e0c06a7ad018a82d31a6a689910b42c0fa97f798c7c67f977030ac
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 00eb131d3a5c98a1a5c8c2ff4820cd382bf2ca3b31bcc57424992478df70cd8f
[INFO] running `Command { std: "docker" "start" "-a" "00eb131d3a5c98a1a5c8c2ff4820cd382bf2ca3b31bcc57424992478df70cd8f", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/disasm.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     FileIOError(String),
[INFO] [stderr]   |     ----------- ^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `DisasmError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 6 -     FileIOError(String),
[INFO] [stderr] 6 +     FileIOError(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `x86reducer` (bin "x86reducer" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/x86reducer-29e2ec8738bd3a29)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test disasm::disasm_test::test_sib_decoding ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_0x81 ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_0xff ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_01_03_family ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_add ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_accumulators ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_add_01_03 ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_clflush ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_f7_family ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_jcc_rel32 ... ok
[INFO] [stdout] test disasm::disasm_test::test_modrm_decoding ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_call_rel32 ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_dec_r32 ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_nop ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_pop_58 ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_pop_8f ... ok
[INFO] [stdout] test disasm::instruction_tests::decode_returns ... ok
[INFO] [stdout] test disasm::instruction_tests::test_inc ... ok
[INFO] [stdout] test disasm::instruction_tests::test_jump ... ok
[INFO] [stdout] test disasm::instruction_tests::test_jz_jnz_rel8 ... ok
[INFO] [stdout] test disasm::instruction_tests::test_lea ... ok
[INFO] [stdout] test disasm::instruction_tests::test_mov_rm_imm ... ok
[INFO] [stdout] test disasm::instruction_tests::test_movsd ... ok
[INFO] [stdout] test disasm::instruction_tests::test_openc_mov ... ok
[INFO] [stdout] test disasm::instruction_tests::test_push ... ok
[INFO] [stdout] test disasm::instruction_tests::test_repne_cmpsd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "00eb131d3a5c98a1a5c8c2ff4820cd382bf2ca3b31bcc57424992478df70cd8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00eb131d3a5c98a1a5c8c2ff4820cd382bf2ca3b31bcc57424992478df70cd8f", kill_on_drop: false }`
[INFO] [stdout] 00eb131d3a5c98a1a5c8c2ff4820cd382bf2ca3b31bcc57424992478df70cd8f