[INFO] fetching crate lazy_futuristic 1.0.2...
[INFO] testing lazy_futuristic-1.0.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[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 c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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: v1.48.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8099afea76b1d9e7440decd1f79f02b515c596761bf48b8f9485e43023d5682d
[INFO] running `Command { std: "docker" "start" "-a" "8099afea76b1d9e7440decd1f79f02b515c596761bf48b8f9485e43023d5682d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8099afea76b1d9e7440decd1f79f02b515c596761bf48b8f9485e43023d5682d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8099afea76b1d9e7440decd1f79f02b515c596761bf48b8f9485e43023d5682d", kill_on_drop: false }`
[INFO] [stdout] 8099afea76b1d9e7440decd1f79f02b515c596761bf48b8f9485e43023d5682d
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aba09771ccb2b450246d6353bca9150e67f461cd209a2683e60e4d7dd8fb16ae
[INFO] running `Command { std: "docker" "start" "-a" "aba09771ccb2b450246d6353bca9150e67f461cd209a2683e60e4d7dd8fb16ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[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<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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.14s
[INFO] running `Command { std: "docker" "inspect" "aba09771ccb2b450246d6353bca9150e67f461cd209a2683e60e4d7dd8fb16ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aba09771ccb2b450246d6353bca9150e67f461cd209a2683e60e4d7dd8fb16ae", kill_on_drop: false }`
[INFO] [stdout] aba09771ccb2b450246d6353bca9150e67f461cd209a2683e60e4d7dd8fb16ae
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59e9cef6223cb5c4defb502ed673c0fea0c0cbf2a5ade06767becb8bcc3ba669
[INFO] running `Command { std: "docker" "start" "-a" "59e9cef6223cb5c4defb502ed673c0fea0c0cbf2a5ade06767becb8bcc3ba669", kill_on_drop: false }`
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling num_cpus v1.17.0
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mio v0.6.23
[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<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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `Command { std: "docker" "inspect" "59e9cef6223cb5c4defb502ed673c0fea0c0cbf2a5ade06767becb8bcc3ba669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59e9cef6223cb5c4defb502ed673c0fea0c0cbf2a5ade06767becb8bcc3ba669", kill_on_drop: false }`
[INFO] [stdout] 59e9cef6223cb5c4defb502ed673c0fea0c0cbf2a5ade06767becb8bcc3ba669
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92250031f4decbdaa3fd9ef8b1da8d85ffa56ec4f3e6f85fba597e6c60ff2c94
[INFO] running `Command { std: "docker" "start" "-a" "92250031f4decbdaa3fd9ef8b1da8d85ffa56ec4f3e6f85fba597e6c60ff2c94", kill_on_drop: false }`
[INFO] [stderr] warning: field `guard` is never read
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:39:5
[INFO] [stdout] running 6 tests
[INFO] [stderr]    |
[INFO] [stdout] test tests::instantiation_works ... ok
[INFO] [stderr] 37 | pub struct Setter<'l, T> {
[INFO] [stdout] test tests::get_unset ... ok
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stdout] test tests::share_between_threads ... ok
[INFO] [stderr] 38 |     parent: &'l Lazy<T>,
[INFO] [stdout] test tests::get_and_set_double ... ok
[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 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lazy_futuristic-fccb75eca59ffb94)
[INFO] [stdout] test tests::get_or_set ... 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 0.20s
[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 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92250031f4decbdaa3fd9ef8b1da8d85ffa56ec4f3e6f85fba597e6c60ff2c94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92250031f4decbdaa3fd9ef8b1da8d85ffa56ec4f3e6f85fba597e6c60ff2c94", kill_on_drop: false }`
[INFO] [stdout] 92250031f4decbdaa3fd9ef8b1da8d85ffa56ec4f3e6f85fba597e6c60ff2c94