[INFO] fetching crate decstr 0.2.0...
[INFO] building decstr-0.2.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate decstr 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate decstr 0.2.0 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 decstr 0.2.0
[INFO] finished tweaking crates.io crate decstr 0.2.0
[INFO] tweaked toml for crates.io crate decstr 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate decstr 0.2.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dec v0.4.8
[INFO] [stderr]   Downloaded decnumber-sys v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 65caf747e20b038be84f62ac0abef7b35d2d7871c97da49ec97244f22bcae8c7
[INFO] running `Command { std: "docker" "start" "-a" "65caf747e20b038be84f62ac0abef7b35d2d7871c97da49ec97244f22bcae8c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65caf747e20b038be84f62ac0abef7b35d2d7871c97da49ec97244f22bcae8c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65caf747e20b038be84f62ac0abef7b35d2d7871c97da49ec97244f22bcae8c7", kill_on_drop: false }`
[INFO] [stdout] 65caf747e20b038be84f62ac0abef7b35d2d7871c97da49ec97244f22bcae8c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 43898eae64116df28caef49dd11b1c6273980f1e325e073efde7ce9262ede55e
[INFO] running `Command { std: "docker" "start" "-a" "43898eae64116df28caef49dd11b1c6273980f1e325e073efde7ce9262ede55e", kill_on_drop: false }`
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling decstr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `trailing_exponent_width_bits` is never used
[INFO] [stdout]    --> src/binary/buf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 34  | pub trait BinaryBuf {
[INFO] [stdout]     |           --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn trailing_exponent_width_bits(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "43898eae64116df28caef49dd11b1c6273980f1e325e073efde7ce9262ede55e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43898eae64116df28caef49dd11b1c6273980f1e325e073efde7ce9262ede55e", kill_on_drop: false }`
[INFO] [stdout] 43898eae64116df28caef49dd11b1c6273980f1e325e073efde7ce9262ede55e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 005eb8ce1c7e95617239504d544d596f9e9c9a812888f4074c1dbd9ef0cefab5
[INFO] running `Command { std: "docker" "start" "-a" "005eb8ce1c7e95617239504d544d596f9e9c9a812888f4074c1dbd9ef0cefab5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stdout] warning: method `trailing_exponent_width_bits` is never used
[INFO] [stdout]    --> src/binary/buf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 34  | pub trait BinaryBuf {
[INFO] [stdout]     |           --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn trailing_exponent_width_bits(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling decnumber-sys v0.1.5
[INFO] [stderr]    Compiling dec v0.4.8
[INFO] [stderr]    Compiling decstr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `trailing_exponent_width_bits` is never used
[INFO] [stdout]    --> src/binary/buf.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 34  | pub trait BinaryBuf {
[INFO] [stdout]     |           --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 177 |     fn trailing_exponent_width_bits(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "005eb8ce1c7e95617239504d544d596f9e9c9a812888f4074c1dbd9ef0cefab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "005eb8ce1c7e95617239504d544d596f9e9c9a812888f4074c1dbd9ef0cefab5", kill_on_drop: false }`
[INFO] [stdout] 005eb8ce1c7e95617239504d544d596f9e9c9a812888f4074c1dbd9ef0cefab5