[INFO] fetching crate genelf 0.2.4...
[INFO] testing genelf-0.2.4 against 1.90.0 for beta-1.91-3
[INFO] extracting crate genelf 0.2.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate genelf 0.2.4
[INFO] finished tweaking crates.io crate genelf 0.2.4
[INFO] tweaked toml for crates.io crate genelf 0.2.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate genelf 0.2.4 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89c4ae80b0cc2e0371a3722a2c432a8481d1fe43b7519c481dc115ca7e348d9f
[INFO] running `Command { std: "docker" "start" "-a" "89c4ae80b0cc2e0371a3722a2c432a8481d1fe43b7519c481dc115ca7e348d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89c4ae80b0cc2e0371a3722a2c432a8481d1fe43b7519c481dc115ca7e348d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c4ae80b0cc2e0371a3722a2c432a8481d1fe43b7519c481dc115ca7e348d9f", kill_on_drop: false }`
[INFO] [stdout] 89c4ae80b0cc2e0371a3722a2c432a8481d1fe43b7519c481dc115ca7e348d9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26ff850c7fb08d3537150b90b31883fbfbd12637d860b12c8c283006c57af43f
[INFO] running `Command { std: "docker" "start" "-a" "26ff850c7fb08d3537150b90b31883fbfbd12637d860b12c8c283006c57af43f", kill_on_drop: false }`
[INFO] [stderr]    Compiling genelf v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/elf/elf.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stdout]     |         ^                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stdout] 178 +         (u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/elf/elf.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 |         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stdout]     |         ^                                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 184 -         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stdout] 184 +         (u[18] == 0x3e) && (u[19] == 0x00)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/elf/elf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Section {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `check_emagic`, `check_etype`, and `check_machine` are never used
[INFO] [stdout]    --> src/elf/elf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl Ehdr {
[INFO] [stdout]     | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn check_emagic(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     fn check_etype(u: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn check_machine(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]    --> src/elf/elf.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 257 | pub struct Shdr {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 268 |     len: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "26ff850c7fb08d3537150b90b31883fbfbd12637d860b12c8c283006c57af43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ff850c7fb08d3537150b90b31883fbfbd12637d860b12c8c283006c57af43f", kill_on_drop: false }`
[INFO] [stdout] 26ff850c7fb08d3537150b90b31883fbfbd12637d860b12c8c283006c57af43f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 336fd9a629e8805aea8447ebea6cd313661f5f25318f90442ca4bccf6cf1f5da
[INFO] running `Command { std: "docker" "start" "-a" "336fd9a629e8805aea8447ebea6cd313661f5f25318f90442ca4bccf6cf1f5da", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/elf/elf.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stdout]     |         ^                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stdout] 178 +         (u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/elf/elf.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 |         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stdout]     |         ^                                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 184 -         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stdout] 184 +         (u[18] == 0x3e) && (u[19] == 0x00)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/elf/elf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Section {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `check_emagic`, `check_etype`, and `check_machine` are never used
[INFO] [stdout]    --> src/elf/elf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl Ehdr {
[INFO] [stdout]     | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn check_emagic(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     fn check_etype(u: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn check_machine(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]    --> src/elf/elf.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 257 | pub struct Shdr {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 268 |     len: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling genelf v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/elf/elf.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stdout]     |         ^                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stdout] 178 +         (u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/elf/elf.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 184 |         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stdout]     |         ^                                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 184 -         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stdout] 184 +         (u[18] == 0x3e) && (u[19] == 0x00)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/elf/elf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Section {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `check_emagic`, `check_etype`, and `check_machine` are never used
[INFO] [stdout]    --> src/elf/elf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | impl Ehdr {
[INFO] [stdout]     | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn check_emagic(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     fn check_etype(u: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn check_machine(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]    --> src/elf/elf.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 257 | pub struct Shdr {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 268 |     len: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "336fd9a629e8805aea8447ebea6cd313661f5f25318f90442ca4bccf6cf1f5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "336fd9a629e8805aea8447ebea6cd313661f5f25318f90442ca4bccf6cf1f5da", kill_on_drop: false }`
[INFO] [stdout] 336fd9a629e8805aea8447ebea6cd313661f5f25318f90442ca4bccf6cf1f5da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0eba12ea92fd89e22fe40c62fa07e018a09c43b3093e2336dbd3131eaf278f6f
[INFO] running `Command { std: "docker" "start" "-a" "0eba12ea92fd89e22fe40c62fa07e018a09c43b3093e2336dbd3131eaf278f6f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/elf/elf.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 178 |         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stderr]     |         ^                                                                    ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 178 -         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stderr] 178 +         (u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/elf/elf.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stderr]     |         ^                                  ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 184 -         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stderr] 184 +         (u[18] == 0x3e) && (u[19] == 0x00)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]  --> src/elf/elf.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Section {
[INFO] [stderr]   |            ------- field in this struct
[INFO] [stderr] 4 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `check_emagic`, `check_etype`, and `check_machine` are never used
[INFO] [stderr]    --> src/elf/elf.rs:177:8
[INFO] [stderr]     |
[INFO] [stderr] 158 | impl Ehdr {
[INFO] [stderr]     | --------- associated functions in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 177 |     fn check_emagic(u: &Vec<u8>) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 180 |     fn check_etype(u: u16) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 183 |     fn check_machine(u: &Vec<u8>) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `len` is never read
[INFO] [stderr]    --> src/elf/elf.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 257 | pub struct Shdr {
[INFO] [stderr]     |            ---- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 268 |     len: usize,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `genelf` (lib) generated 5 warnings (run `cargo fix --lib -p genelf` to apply 2 suggestions)
[INFO] [stderr] warning: `genelf` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/genelf-f31b3bc6cce67e6f)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests genelf
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/elf/elf.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 178 |         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stderr]     |         ^                                                                    ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 178 -         ((u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46))
[INFO] [stderr] 178 +         (u[0] == 0x7f) && (u[1] == 0x45) && (u[2] == 0x4c) && (u[3] == 0x46)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/elf/elf.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stderr]     |         ^                                  ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 184 -         ((u[18] == 0x3e) && (u[19] == 0x00))
[INFO] [stderr] 184 +         (u[18] == 0x3e) && (u[19] == 0x00)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0eba12ea92fd89e22fe40c62fa07e018a09c43b3093e2336dbd3131eaf278f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eba12ea92fd89e22fe40c62fa07e018a09c43b3093e2336dbd3131eaf278f6f", kill_on_drop: false }`
[INFO] [stdout] 0eba12ea92fd89e22fe40c62fa07e018a09c43b3093e2336dbd3131eaf278f6f