[INFO] fetching crate irv 0.0.2...
[INFO] checking irv-0.0.2 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate irv 0.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate irv 0.0.2 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate irv 0.0.2
[INFO] finished tweaking crates.io crate irv 0.0.2
[INFO] tweaked toml for crates.io crate irv 0.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding goblin v0.5.4 (available: v0.8.2)
[INFO] [stderr]       Adding scroll v0.11.0 (available: v0.12.0)
[INFO] [stderr]       Adding scroll_derive v0.11.1 (available: v0.12.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scroll_derive v0.11.1
[INFO] [stderr]   Downloaded irv-loader v0.0.1
[INFO] [stderr]   Downloaded irv-traits v0.0.1
[INFO] [stderr]   Downloaded goblin v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6de65c70cea6639bfc551ff92aa1f609240d86c483c2fec3707e4ae540f9307
[INFO] running `Command { std: "docker" "start" "-a" "a6de65c70cea6639bfc551ff92aa1f609240d86c483c2fec3707e4ae540f9307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6de65c70cea6639bfc551ff92aa1f609240d86c483c2fec3707e4ae540f9307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6de65c70cea6639bfc551ff92aa1f609240d86c483c2fec3707e4ae540f9307", kill_on_drop: false }`
[INFO] [stdout] a6de65c70cea6639bfc551ff92aa1f609240d86c483c2fec3707e4ae540f9307
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cefc481b10d642802aa80c288ee789213c0a55df3c4f976b182853f376303579
[INFO] running `Command { std: "docker" "start" "-a" "cefc481b10d642802aa80c288ee789213c0a55df3c4f976b182853f376303579", kill_on_drop: false }`
[INFO] [stderr]     Checking irv-traits v0.0.1
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling scroll_derive v0.11.1
[INFO] [stderr]     Checking irv v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/memory.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         drop(data);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut [u64]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 31 -         drop(data);
[INFO] [stdout] 31 +         let _ = data;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking scroll v0.11.0
[INFO] [stderr]     Checking goblin v0.5.4
[INFO] [stderr]     Checking irv-loader v0.0.1
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> tests/riscv-tests.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{self, File}, path::Path, io};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/memory.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         drop(data);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut [u64]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 31 -         drop(data);
[INFO] [stdout] 31 +         let _ = data;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "cefc481b10d642802aa80c288ee789213c0a55df3c4f976b182853f376303579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefc481b10d642802aa80c288ee789213c0a55df3c4f976b182853f376303579", kill_on_drop: false }`
[INFO] [stdout] cefc481b10d642802aa80c288ee789213c0a55df3c4f976b182853f376303579