[INFO] fetching crate cpuid_dump_rs 0.1.2...
[INFO] checking cpuid_dump_rs-0.1.2 against master#42f4793e5a514858221b07ac379029d90353913e for pr-148952
[INFO] extracting crate cpuid_dump_rs 0.1.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate cpuid_dump_rs 0.1.2
[INFO] finished tweaking crates.io crate cpuid_dump_rs 0.1.2
[INFO] tweaked toml for crates.io crate cpuid_dump_rs 0.1.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cpuid_dump_rs 0.1.2 on toolchain 42f4793e5a514858221b07ac379029d90353913e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cpuid_dump_rs 0.1.2 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" "+42f4793e5a514858221b07ac379029d90353913e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libcpuid_dump v0.1.2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38935a51310407ec934d8281a06e7375771b7e3a493b726fb959fe2719229b2e
[INFO] running `Command { std: "docker" "start" "-a" "38935a51310407ec934d8281a06e7375771b7e3a493b726fb959fe2719229b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38935a51310407ec934d8281a06e7375771b7e3a493b726fb959fe2719229b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38935a51310407ec934d8281a06e7375771b7e3a493b726fb959fe2719229b2e", kill_on_drop: false }`
[INFO] [stdout] 38935a51310407ec934d8281a06e7375771b7e3a493b726fb959fe2719229b2e
[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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7218acc0d5bab126614470dd69d3b1bdcc399d7f451cbe6c1a2e60fd5ab67eb9
[INFO] running `Command { std: "docker" "start" "-a" "7218acc0d5bab126614470dd69d3b1bdcc399d7f451cbe6c1a2e60fd5ab67eb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking libcpuid_dump v0.1.2
[INFO] [stderr]     Checking cpuid_dump_rs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]   --> src/parse/parse_util.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         [ "[", f, "] " ].map(|s| mold.push_str(s));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let _ = [ "[", f, "] " ].map(|s| mold.push_str(s));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]   --> src/parse/parse_util.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         [ "[", f, "] " ].map(|s| mold.push_str(s));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let _ = [ "[", f, "] " ].map(|s| mold.push_str(s));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "7218acc0d5bab126614470dd69d3b1bdcc399d7f451cbe6c1a2e60fd5ab67eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7218acc0d5bab126614470dd69d3b1bdcc399d7f451cbe6c1a2e60fd5ab67eb9", kill_on_drop: false }`
[INFO] [stdout] 7218acc0d5bab126614470dd69d3b1bdcc399d7f451cbe6c1a2e60fd5ab67eb9