[INFO] fetching crate genelf 0.2.4...
[INFO] checking genelf-0.2.4 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate genelf 0.2.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate genelf 0.2.4 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 169f51e3c75b6edb18df63a2a5ae9a85849e1e4d8b15a21b30688972512f859d
[INFO] running `Command { std: "docker" "start" "-a" "169f51e3c75b6edb18df63a2a5ae9a85849e1e4d8b15a21b30688972512f859d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "169f51e3c75b6edb18df63a2a5ae9a85849e1e4d8b15a21b30688972512f859d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169f51e3c75b6edb18df63a2a5ae9a85849e1e4d8b15a21b30688972512f859d", kill_on_drop: false }`
[INFO] [stdout] 169f51e3c75b6edb18df63a2a5ae9a85849e1e4d8b15a21b30688972512f859d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b6afe38df5456fc78dde0b24fd5149cb4b4ecfbff18dc313e5d1ae6a7ea9301
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0b6afe38df5456fc78dde0b24fd5149cb4b4ecfbff18dc313e5d1ae6a7ea9301", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking 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]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[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]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[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]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[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]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/elf/elf.rs:4:5
[INFO] [stdout]   |
[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 function is never used: `check_emagic`
[INFO] [stdout]    --> src/elf/elf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn check_emagic(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_etype`
[INFO] [stdout]    --> src/elf/elf.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn check_etype(u: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_machine`
[INFO] [stdout]    --> src/elf/elf.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn check_machine(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `len`
[INFO] [stdout]    --> src/elf/elf.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 268 |     len: usize,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/elf/elf.rs:4:5
[INFO] [stdout]   |
[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 function is never used: `check_emagic`
[INFO] [stdout]    --> src/elf/elf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn check_emagic(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_etype`
[INFO] [stdout]    --> src/elf/elf.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn check_etype(u: u16) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_machine`
[INFO] [stdout]    --> src/elf/elf.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn check_machine(u: &Vec<u8>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `len`
[INFO] [stdout]    --> src/elf/elf.rs:268:5
[INFO] [stdout]     |
[INFO] [stdout] 268 |     len: usize,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "0b6afe38df5456fc78dde0b24fd5149cb4b4ecfbff18dc313e5d1ae6a7ea9301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6afe38df5456fc78dde0b24fd5149cb4b4ecfbff18dc313e5d1ae6a7ea9301", kill_on_drop: false }`
[INFO] [stdout] 0b6afe38df5456fc78dde0b24fd5149cb4b4ecfbff18dc313e5d1ae6a7ea9301