[INFO] fetching crate elfio 0.3.3...
[INFO] building elfio-0.3.3 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate elfio 0.3.3 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate elfio 0.3.3 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elfio 0.3.3
[INFO] finished tweaking crates.io crate elfio 0.3.3
[INFO] tweaked toml for crates.io crate elfio 0.3.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate elfio 0.3.3 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce5e3d176c685f0b04211fd54751bf08af92e68f55d76cd6b4ca380b90c0178b
[INFO] running `Command { std: "docker" "start" "-a" "ce5e3d176c685f0b04211fd54751bf08af92e68f55d76cd6b4ca380b90c0178b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce5e3d176c685f0b04211fd54751bf08af92e68f55d76cd6b4ca380b90c0178b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5e3d176c685f0b04211fd54751bf08af92e68f55d76cd6b4ca380b90c0178b", kill_on_drop: false }`
[INFO] [stdout] ce5e3d176c685f0b04211fd54751bf08af92e68f55d76cd6b4ca380b90c0178b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 882af25a6458a65e68ae855ca2d8f9c5c8e47d51633076a357182542b069f101
[INFO] running `Command { std: "docker" "start" "-a" "882af25a6458a65e68ae855ca2d8f9c5c8e47d51633076a357182542b069f101", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling elfio v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Elf32Rel` is never constructed
[INFO] [stdout]   --> src/relocation.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Elf32Rel {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Elf32Rel` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Elf64Rel` is never constructed
[INFO] [stdout]   --> src/relocation.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Elf64Rel {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Elf64Rel` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "882af25a6458a65e68ae855ca2d8f9c5c8e47d51633076a357182542b069f101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "882af25a6458a65e68ae855ca2d8f9c5c8e47d51633076a357182542b069f101", kill_on_drop: false }`
[INFO] [stdout] 882af25a6458a65e68ae855ca2d8f9c5c8e47d51633076a357182542b069f101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2973e0a19c944065d9c436b15bc7ae6eeaec1ceba6993dd4abfe4c56fa909ead
[INFO] running `Command { std: "docker" "start" "-a" "2973e0a19c944065d9c436b15bc7ae6eeaec1ceba6993dd4abfe4c56fa909ead", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Elf32Rel` is never constructed
[INFO] [stdout]   --> src/relocation.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Elf32Rel {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Elf32Rel` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Elf64Rel` is never constructed
[INFO] [stdout]   --> src/relocation.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Elf64Rel {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Elf64Rel` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling elfio v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Elf32Rel` is never constructed
[INFO] [stdout]   --> src/relocation.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Elf32Rel {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Elf32Rel` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Elf64Rel` is never constructed
[INFO] [stdout]   --> src/relocation.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Elf64Rel {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Elf64Rel` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "2973e0a19c944065d9c436b15bc7ae6eeaec1ceba6993dd4abfe4c56fa909ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2973e0a19c944065d9c436b15bc7ae6eeaec1ceba6993dd4abfe4c56fa909ead", kill_on_drop: false }`
[INFO] [stdout] 2973e0a19c944065d9c436b15bc7ae6eeaec1ceba6993dd4abfe4c56fa909ead