[INFO] fetching crate decstr 0.2.0...
[INFO] checking decstr-0.2.0 against try#0edd13c68435d50367c79cef43ac2768d2ec4f3d for pr-129422
[INFO] extracting crate decstr 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate decstr 0.2.0 on toolchain 0edd13c68435d50367c79cef43ac2768d2ec4f3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "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-1-tc2/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" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dcfeedf3ac4722dcf418a063bcab69e7d4b6f163166e03e1c51affee18974cb
[INFO] running `Command { std: "docker" "start" "-a" "0dcfeedf3ac4722dcf418a063bcab69e7d4b6f163166e03e1c51affee18974cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dcfeedf3ac4722dcf418a063bcab69e7d4b6f163166e03e1c51affee18974cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dcfeedf3ac4722dcf418a063bcab69e7d4b6f163166e03e1c51affee18974cb", kill_on_drop: false }`
[INFO] [stdout] 0dcfeedf3ac4722dcf418a063bcab69e7d4b6f163166e03e1c51affee18974cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 854451b11aff59316a60db52db102cba9577497fd1a4ff0b6e12b78cee28556d
[INFO] running `Command { std: "docker" "start" "-a" "854451b11aff59316a60db52db102cba9577497fd1a4ff0b6e12b78cee28556d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling decnumber-sys v0.1.5
[INFO] [stderr]     Checking dec v0.4.8
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.66s
[INFO] running `Command { std: "docker" "inspect" "854451b11aff59316a60db52db102cba9577497fd1a4ff0b6e12b78cee28556d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854451b11aff59316a60db52db102cba9577497fd1a4ff0b6e12b78cee28556d", kill_on_drop: false }`
[INFO] [stdout] 854451b11aff59316a60db52db102cba9577497fd1a4ff0b6e12b78cee28556d