[INFO] fetching crate stdlib-rs 0.0.2...
[INFO] building stdlib-rs-0.0.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate stdlib-rs 0.0.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate stdlib-rs 0.0.2
[INFO] finished tweaking crates.io crate stdlib-rs 0.0.2
[INFO] tweaked toml for crates.io crate stdlib-rs 0.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stdlib-rs 0.0.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stdlib-rs 0.0.2 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57a0b74ba12f657d300498d5693724d26501b03d3bf9fc751f800aec5ed2d414
[INFO] running `Command { std: "docker" "start" "-a" "57a0b74ba12f657d300498d5693724d26501b03d3bf9fc751f800aec5ed2d414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57a0b74ba12f657d300498d5693724d26501b03d3bf9fc751f800aec5ed2d414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57a0b74ba12f657d300498d5693724d26501b03d3bf9fc751f800aec5ed2d414", kill_on_drop: false }`
[INFO] [stdout] 57a0b74ba12f657d300498d5693724d26501b03d3bf9fc751f800aec5ed2d414
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76a161ce7cf5aa26fbe0574861e8d0ff426723b6613529da1f6f7020bfbd3411
[INFO] running `Command { std: "docker" "start" "-a" "76a161ce7cf5aa26fbe0574861e8d0ff426723b6613529da1f6f7020bfbd3411", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdlib-rs v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/collections/stack_with_queue.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Stack<T>(VecDeque<T>, VecDeque<T>);
[INFO] [stdout]   |            -----    ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "76a161ce7cf5aa26fbe0574861e8d0ff426723b6613529da1f6f7020bfbd3411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a161ce7cf5aa26fbe0574861e8d0ff426723b6613529da1f6f7020bfbd3411", kill_on_drop: false }`
[INFO] [stdout] 76a161ce7cf5aa26fbe0574861e8d0ff426723b6613529da1f6f7020bfbd3411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 045af1a7208f02811fc12dfb4a730d16edf79b55c76cf45b0c97c528590d174c
[INFO] running `Command { std: "docker" "start" "-a" "045af1a7208f02811fc12dfb4a730d16edf79b55c76cf45b0c97c528590d174c", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdlib-rs v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/collections/stack_with_queue.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Stack<T>(VecDeque<T>, VecDeque<T>);
[INFO] [stdout]   |            -----    ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/collections/stack_with_queue.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Stack<T>(VecDeque<T>, VecDeque<T>);
[INFO] [stdout]   |            -----    ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "045af1a7208f02811fc12dfb4a730d16edf79b55c76cf45b0c97c528590d174c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "045af1a7208f02811fc12dfb4a730d16edf79b55c76cf45b0c97c528590d174c", kill_on_drop: false }`
[INFO] [stdout] 045af1a7208f02811fc12dfb4a730d16edf79b55c76cf45b0c97c528590d174c