[INFO] fetching crate lazy_futuristic 1.0.2...
[INFO] checking lazy_futuristic-1.0.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate lazy_futuristic 1.0.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate lazy_futuristic 1.0.2
[INFO] finished tweaking crates.io crate lazy_futuristic 1.0.2
[INFO] tweaked toml for crates.io crate lazy_futuristic 1.0.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lazy_futuristic 1.0.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 47 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.47.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec8f074e6e70aa2c19e064d17428816e8f489eaf67b41337f6905cd378e0b070
[INFO] running `Command { std: "docker" "start" "-a" "ec8f074e6e70aa2c19e064d17428816e8f489eaf67b41337f6905cd378e0b070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec8f074e6e70aa2c19e064d17428816e8f489eaf67b41337f6905cd378e0b070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec8f074e6e70aa2c19e064d17428816e8f489eaf67b41337f6905cd378e0b070", kill_on_drop: false }`
[INFO] [stdout] ec8f074e6e70aa2c19e064d17428816e8f489eaf67b41337f6905cd378e0b070
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 381a6b380580e9aec6e330de98434512338ddfaa63f7e52d3e7f8c5da7b03551
[INFO] running `Command { std: "docker" "start" "-a" "381a6b380580e9aec6e330de98434512338ddfaa63f7e52d3e7f8c5da7b03551", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking lazy_futuristic v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Setter<'l, T> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 38 |     parent: &'l Lazy<T>,
[INFO] [stdout] 39 |     guard: MutexGuard<'l, ()>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Setter` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Setter<'l, T> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 38 |     parent: &'l Lazy<T>,
[INFO] [stdout] 39 |     guard: MutexGuard<'l, ()>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Setter` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.49s
[INFO] running `Command { std: "docker" "inspect" "381a6b380580e9aec6e330de98434512338ddfaa63f7e52d3e7f8c5da7b03551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381a6b380580e9aec6e330de98434512338ddfaa63f7e52d3e7f8c5da7b03551", kill_on_drop: false }`
[INFO] [stdout] 381a6b380580e9aec6e330de98434512338ddfaa63f7e52d3e7f8c5da7b03551