[INFO] cloning repository zhuowei/Brainlift [INFO] running `"git" "clone" "--bare" "git://github.com/zhuowei/Brainlift.git" "work/cache/sources/gh/zhuowei/Brainlift"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/zhuowei/Brainlift'... [INFO] running `"git" "clone" "work/cache/sources/gh/zhuowei/Brainlift" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/zhuowei/Brainlift"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/zhuowei/Brainlift'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/zhuowei/Brainlift" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/zhuowei/Brainlift"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/zhuowei/Brainlift'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] be12351ac6e967c47041cf30002762cdc3747039 [INFO] sha for GitHub repo zhuowei/Brainlift: be12351ac6e967c47041cf30002762cdc3747039 [INFO] validating manifest of zhuowei/Brainlift on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of zhuowei/Brainlift on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing zhuowei/Brainlift [INFO] finished frobbing zhuowei/Brainlift [INFO] frobbed toml for zhuowei/Brainlift written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/zhuowei/Brainlift/Cargo.toml [INFO] started frobbing zhuowei/Brainlift [INFO] finished frobbing zhuowei/Brainlift [INFO] frobbed toml for zhuowei/Brainlift written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/zhuowei/Brainlift/Cargo.toml [INFO] crate zhuowei/Brainlift already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro2 v0.4.29 [INFO] [stderr] Downloaded target-lexicon v0.3.0 [INFO] [stderr] Downloaded plain v0.2.3 [INFO] [stderr] Downloaded cranelift-codegen-meta v0.30.0 [INFO] [stderr] Downloaded string-interner v0.6.3 [INFO] [stderr] Downloaded cranelift-module v0.30.0 [INFO] [stderr] Downloaded goblin v0.0.21 [INFO] [stderr] Downloaded cranelift-faerie v0.30.0 [INFO] [stderr] Downloaded cranelift-codegen v0.30.0 [INFO] [stderr] Downloaded scroll v0.9.2 [INFO] [stderr] Downloaded cranelift-entity v0.30.0 [INFO] [stderr] Downloaded scroll_derive v0.9.5 [INFO] [stderr] Downloaded faerie v0.9.1 [INFO] [stderr] Downloaded cranelift-bforest v0.30.0 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking zhuowei/Brainlift against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/zhuowei/Brainlift:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 33af4e75361532faa34c3dcfa082bf7a0f697ff52e2cfe015a28dbf41f5ce3cc [INFO] running `"docker" "start" "-a" "33af4e75361532faa34c3dcfa082bf7a0f697ff52e2cfe015a28dbf41f5ce3cc"` [INFO] [stderr] Compiling proc-macro2 v0.4.29 [INFO] [stderr] Compiling cc v1.0.35 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Compiling libc v0.2.53 [INFO] [stderr] Compiling itoa v0.4.3 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling cranelift-entity v0.30.0 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking plain v0.2.3 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Compiling backtrace v0.3.15 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling cranelift-codegen-meta v0.30.0 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling serde v1.0.90 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking cranelift-bforest v0.30.0 [INFO] [stderr] Checking string-interner v0.6.3 [INFO] [stderr] Compiling scroll v0.9.2 [INFO] [stderr] Checking aho-corasick v0.7.3 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling cranelift-codegen v0.30.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking regex v1.1.6 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking env_logger v0.6.1 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling scroll_derive v0.9.5 [INFO] [stderr] Compiling structopt-derive v0.2.15 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking goblin v0.0.21 [INFO] [stderr] Checking structopt v0.2.15 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Compiling target-lexicon v0.3.0 [INFO] [stderr] Checking faerie v0.9.1 [INFO] [stderr] Checking cranelift-module v0.30.0 [INFO] [stderr] Checking cranelift-faerie v0.30.0 [INFO] [stderr] Checking brainlift v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Type` [INFO] [stderr] --> src/main.rs:1:40 [INFO] [stderr] | [INFO] [stderr] 1 | use cranelift_codegen::ir::{Signature, Type}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Type` [INFO] [stderr] --> src/main.rs:1:40 [INFO] [stderr] | [INFO] [stderr] 1 | use cranelift_codegen::ir::{Signature, Type}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `function_id` [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let function_id = module.declare_function("main", Linkage::Export, &signature)?; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_function_id` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `function_id` [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let function_id = module.declare_function("main", Linkage::Export, &signature)?; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_function_id` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let mut isa_builder = isa::lookup(triple!("x86_64-apple-darwin")).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:33:9 [INFO] [stderr] | [INFO] [stderr] 33 | let mut signature = Signature::new(CallConv::SystemV); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | shared_builder.enable("is_pic"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let mut isa_builder = isa::lookup(triple!("x86_64-apple-darwin")).unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:33:9 [INFO] [stderr] | [INFO] [stderr] 33 | let mut signature = Signature::new(CallConv::SystemV); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | shared_builder.enable("is_pic"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 13s [INFO] running `"docker" "inspect" "33af4e75361532faa34c3dcfa082bf7a0f697ff52e2cfe015a28dbf41f5ce3cc"` [INFO] running `"docker" "rm" "-f" "33af4e75361532faa34c3dcfa082bf7a0f697ff52e2cfe015a28dbf41f5ce3cc"` [INFO] [stdout] 33af4e75361532faa34c3dcfa082bf7a0f697ff52e2cfe015a28dbf41f5ce3cc