[INFO] fetching crate lazy_futuristic 1.0.2... [INFO] testing lazy_futuristic-1.0.2 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate lazy_futuristic 1.0.2 into /workspace/builds/worker-4-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-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lazy_futuristic 1.0.2 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 49 packages to latest compatible versions [INFO] [stderr] Adding tokio v0.2.25 (available: v1.51.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 45df6d5e031293acc49582c01e8e6f09c0897840d21cb0a7dcfc3a1fcfe9baa3 [INFO] running `Command { std: "docker" "start" "-a" "45df6d5e031293acc49582c01e8e6f09c0897840d21cb0a7dcfc3a1fcfe9baa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "45df6d5e031293acc49582c01e8e6f09c0897840d21cb0a7dcfc3a1fcfe9baa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45df6d5e031293acc49582c01e8e6f09c0897840d21cb0a7dcfc3a1fcfe9baa3", kill_on_drop: false }` [INFO] [stdout] 45df6d5e031293acc49582c01e8e6f09c0897840d21cb0a7dcfc3a1fcfe9baa3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ecad53573bdfd3cf0da2815ad0413255af946bf3538c0fe22152962a58332ec0 [INFO] running `Command { std: "docker" "start" "-a" "ecad53573bdfd3cf0da2815ad0413255af946bf3538c0fe22152962a58332ec0", kill_on_drop: false }` [INFO] [stderr] Compiling futures-sink v0.3.32 [INFO] [stderr] Compiling slab v0.4.12 [INFO] [stderr] Compiling futures-macro v0.3.32 [INFO] [stderr] Compiling futures-channel v0.3.32 [INFO] [stderr] Compiling futures-util v0.3.32 [INFO] [stderr] Compiling futures-executor v0.3.32 [INFO] [stderr] Compiling futures v0.3.32 [INFO] [stderr] Compiling 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, [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.06s [INFO] running `Command { std: "docker" "inspect" "ecad53573bdfd3cf0da2815ad0413255af946bf3538c0fe22152962a58332ec0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecad53573bdfd3cf0da2815ad0413255af946bf3538c0fe22152962a58332ec0", kill_on_drop: false }` [INFO] [stdout] ecad53573bdfd3cf0da2815ad0413255af946bf3538c0fe22152962a58332ec0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d49ffa0d4b5cf8201f6251b6ef6fe8f4687b3e7336d677ec838c448b74540a61 [INFO] running `Command { std: "docker" "start" "-a" "d49ffa0d4b5cf8201f6251b6ef6fe8f4687b3e7336d677ec838c448b74540a61", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.184 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling log v0.4.29 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling pin-project-lite v0.1.12 [INFO] [stderr] Compiling syn v1.0.109 [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, [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling errno v0.3.14 [INFO] [stderr] Compiling num_cpus v1.17.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.8 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Compiling mio-uds v0.6.8 [INFO] [stderr] Compiling tokio v0.2.25 [INFO] [stderr] Compiling 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, [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 14.22s [INFO] running `Command { std: "docker" "inspect" "d49ffa0d4b5cf8201f6251b6ef6fe8f4687b3e7336d677ec838c448b74540a61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d49ffa0d4b5cf8201f6251b6ef6fe8f4687b3e7336d677ec838c448b74540a61", kill_on_drop: false }` [INFO] [stdout] d49ffa0d4b5cf8201f6251b6ef6fe8f4687b3e7336d677ec838c448b74540a61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7416c43a91cf7a4e0b5deca58662f182290237c6dd456c0ec6a838cb1baeb5eb [INFO] running `Command { std: "docker" "start" "-a" "7416c43a91cf7a4e0b5deca58662f182290237c6dd456c0ec6a838cb1baeb5eb", kill_on_drop: false }` [INFO] [stderr] warning: field `guard` is never read [INFO] [stderr] --> src/lib.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 37 | pub struct Setter<'l, T> { [INFO] [stderr] | ------ field in this struct [INFO] [stderr] 38 | parent: &'l Lazy, [INFO] [stderr] 39 | guard: MutexGuard<'l, ()>, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Setter` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `lazy_futuristic` (lib) generated 1 warning [INFO] [stderr] warning: `lazy_futuristic` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lazy_futuristic-aa63000ac269c178) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::share_between_threads ... ok [INFO] [stdout] test tests::get_unset ... ok [INFO] [stdout] test tests::instantiation_works ... ok [INFO] [stdout] test tests::get_or_set ... ok [INFO] [stdout] test tests::get_and_set_double ... ok [INFO] [stdout] test tests::get_or_set_value ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests lazy_futuristic [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 6) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "7416c43a91cf7a4e0b5deca58662f182290237c6dd456c0ec6a838cb1baeb5eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7416c43a91cf7a4e0b5deca58662f182290237c6dd456c0ec6a838cb1baeb5eb", kill_on_drop: false }` [INFO] [stdout] 7416c43a91cf7a4e0b5deca58662f182290237c6dd456c0ec6a838cb1baeb5eb