[INFO] cloning repository https://github.com/AdamStepan/rust-elf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdamStepan/rust-elf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamStepan%2Frust-elf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamStepan%2Frust-elf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5682f6c92f9d2a29d95f058083c75926a61a1a44
[INFO] checking AdamStepan/rust-elf against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamStepan%2Frust-elf" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AdamStepan/rust-elf on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AdamStepan/rust-elf
[INFO] finished tweaking git repo https://github.com/AdamStepan/rust-elf
[INFO] tweaked toml for git repo https://github.com/AdamStepan/rust-elf written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3aa79984d6d0b13e7295f22bd8c7089bbf6e4c6cf9ca3b3c42f05b6a06a7e45a
[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" "3aa79984d6d0b13e7295f22bd8c7089bbf6e4c6cf9ca3b3c42f05b6a06a7e45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3aa79984d6d0b13e7295f22bd8c7089bbf6e4c6cf9ca3b3c42f05b6a06a7e45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aa79984d6d0b13e7295f22bd8c7089bbf6e4c6cf9ca3b3c42f05b6a06a7e45a", kill_on_drop: false }`
[INFO] [stdout] 3aa79984d6d0b13e7295f22bd8c7089bbf6e4c6cf9ca3b3c42f05b6a06a7e45a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc399d63076bd79b50299e5a350f053f2eeb6fa412a2ea8fd0102c9033a8ee5e
[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" "cc399d63076bd79b50299e5a350f053f2eeb6fa412a2ea8fd0102c9033a8ee5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rust-elf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]     --> src/main.rs:1215:13
[INFO] [stdout]      |
[INFO] [stdout] 1215 |     fn core(value: &NoteType, data: Vec<u8>) -> NoteDesc {
[INFO] [stdout]      |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]     --> src/main.rs:1215:13
[INFO] [stdout]      |
[INFO] [stdout] 1215 |     fn core(value: &NoteType, data: Vec<u8>) -> NoteDesc {
[INFO] [stdout]      |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrStatus`
[INFO] [stdout]    --> src/main.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |     PrStatus,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrFpReg`
[INFO] [stdout]    --> src/main.rs:387:5
[INFO] [stdout]     |
[INFO] [stdout] 387 |     PrFpReg,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrPsInfo`
[INFO] [stdout]    --> src/main.rs:389:5
[INFO] [stdout]     |
[INFO] [stdout] 389 |     PrPsInfo,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrxReg`
[INFO] [stdout]    --> src/main.rs:391:5
[INFO] [stdout]     |
[INFO] [stdout] 391 |     PrxReg,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TaskStruct`
[INFO] [stdout]    --> src/main.rs:393:5
[INFO] [stdout]     |
[INFO] [stdout] 393 |     TaskStruct,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Platform`
[INFO] [stdout]    --> src/main.rs:395:5
[INFO] [stdout]     |
[INFO] [stdout] 395 |     Platform,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Auxw`
[INFO] [stdout]    --> src/main.rs:397:5
[INFO] [stdout]     |
[INFO] [stdout] 397 |     Auxw,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GWindows`
[INFO] [stdout]    --> src/main.rs:399:5
[INFO] [stdout]     |
[INFO] [stdout] 399 |     GWindows,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AsRet`
[INFO] [stdout]    --> src/main.rs:401:5
[INFO] [stdout]     |
[INFO] [stdout] 401 |     AsRet,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PsStatus`
[INFO] [stdout]    --> src/main.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 |     PsStatus,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PsInfo`
[INFO] [stdout]    --> src/main.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     PsInfo,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrcRed`
[INFO] [stdout]    --> src/main.rs:407:5
[INFO] [stdout]     |
[INFO] [stdout] 407 |     PrcRed,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UtsName`
[INFO] [stdout]    --> src/main.rs:409:5
[INFO] [stdout]     |
[INFO] [stdout] 409 |     UtsName,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LwpStatus`
[INFO] [stdout]    --> src/main.rs:411:5
[INFO] [stdout]     |
[INFO] [stdout] 411 |     LwpStatus,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LwpInfo`
[INFO] [stdout]    --> src/main.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     LwpInfo,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FprxRegSet`
[INFO] [stdout]    --> src/main.rs:415:5
[INFO] [stdout]     |
[INFO] [stdout] 415 |     FprxRegSet,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SigInfo`
[INFO] [stdout]    --> src/main.rs:417:5
[INFO] [stdout]     |
[INFO] [stdout] 417 |     SigInfo,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MappedFiles`
[INFO] [stdout]    --> src/main.rs:419:5
[INFO] [stdout]     |
[INFO] [stdout] 419 |     MappedFiles,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrStatus`
[INFO] [stdout]    --> src/main.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |     PrStatus,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrFpReg`
[INFO] [stdout]    --> src/main.rs:387:5
[INFO] [stdout]     |
[INFO] [stdout] 387 |     PrFpReg,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrPsInfo`
[INFO] [stdout]    --> src/main.rs:389:5
[INFO] [stdout]     |
[INFO] [stdout] 389 |     PrPsInfo,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrxReg`
[INFO] [stdout]    --> src/main.rs:391:5
[INFO] [stdout]     |
[INFO] [stdout] 391 |     PrxReg,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TaskStruct`
[INFO] [stdout]    --> src/main.rs:393:5
[INFO] [stdout]     |
[INFO] [stdout] 393 |     TaskStruct,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Platform`
[INFO] [stdout]    --> src/main.rs:395:5
[INFO] [stdout]     |
[INFO] [stdout] 395 |     Platform,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Auxw`
[INFO] [stdout]    --> src/main.rs:397:5
[INFO] [stdout]     |
[INFO] [stdout] 397 |     Auxw,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GWindows`
[INFO] [stdout]    --> src/main.rs:399:5
[INFO] [stdout]     |
[INFO] [stdout] 399 |     GWindows,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AsRet`
[INFO] [stdout]    --> src/main.rs:401:5
[INFO] [stdout]     |
[INFO] [stdout] 401 |     AsRet,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PsStatus`
[INFO] [stdout]    --> src/main.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 |     PsStatus,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PsInfo`
[INFO] [stdout]    --> src/main.rs:405:5
[INFO] [stdout]     |
[INFO] [stdout] 405 |     PsInfo,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrcRed`
[INFO] [stdout]    --> src/main.rs:407:5
[INFO] [stdout]     |
[INFO] [stdout] 407 |     PrcRed,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UtsName`
[INFO] [stdout]    --> src/main.rs:409:5
[INFO] [stdout]     |
[INFO] [stdout] 409 |     UtsName,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LwpStatus`
[INFO] [stdout]    --> src/main.rs:411:5
[INFO] [stdout]     |
[INFO] [stdout] 411 |     LwpStatus,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LwpInfo`
[INFO] [stdout]    --> src/main.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 |     LwpInfo,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FprxRegSet`
[INFO] [stdout]    --> src/main.rs:415:5
[INFO] [stdout]     |
[INFO] [stdout] 415 |     FprxRegSet,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SigInfo`
[INFO] [stdout]    --> src/main.rs:417:5
[INFO] [stdout]     |
[INFO] [stdout] 417 |     SigInfo,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MappedFiles`
[INFO] [stdout]    --> src/main.rs:419:5
[INFO] [stdout]     |
[INFO] [stdout] 419 |     MappedFiles,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.04s
[INFO] running `Command { std: "docker" "inspect" "cc399d63076bd79b50299e5a350f053f2eeb6fa412a2ea8fd0102c9033a8ee5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc399d63076bd79b50299e5a350f053f2eeb6fa412a2ea8fd0102c9033a8ee5e", kill_on_drop: false }`
[INFO] [stdout] cc399d63076bd79b50299e5a350f053f2eeb6fa412a2ea8fd0102c9033a8ee5e