[INFO] fetching crate tryagain 0.1.0...
[INFO] testing tryagain-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate tryagain 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tryagain 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tryagain 0.1.0
[INFO] finished tweaking crates.io crate tryagain 0.1.0
[INFO] tweaked toml for crates.io crate tryagain 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a05b96f9dd1e2eb493afee11f789bf3a09ab702e3f42fca8a02b2027812fd432
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a05b96f9dd1e2eb493afee11f789bf3a09ab702e3f42fca8a02b2027812fd432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a05b96f9dd1e2eb493afee11f789bf3a09ab702e3f42fca8a02b2027812fd432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a05b96f9dd1e2eb493afee11f789bf3a09ab702e3f42fca8a02b2027812fd432", kill_on_drop: false }`
[INFO] [stdout] a05b96f9dd1e2eb493afee11f789bf3a09ab702e3f42fca8a02b2027812fd432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a78b40ab110f74c79a5396514552a00252e0bf19f87653a342e362cea4209743
[INFO] running `Command { std: "docker" "start" "-a" "a78b40ab110f74c79a5396514552a00252e0bf19f87653a342e362cea4209743", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling tryagain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `instant`
[INFO] [stdout]   --> src/backoff.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     instant: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ExponentialBackoff` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/backoff.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.42s
[INFO] running `Command { std: "docker" "inspect" "a78b40ab110f74c79a5396514552a00252e0bf19f87653a342e362cea4209743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a78b40ab110f74c79a5396514552a00252e0bf19f87653a342e362cea4209743", kill_on_drop: false }`
[INFO] [stdout] a78b40ab110f74c79a5396514552a00252e0bf19f87653a342e362cea4209743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 52a6d594e2338447fbc59be0a80691a6abc14f24b4dea1b7fc6471a72c6216d9
[INFO] running `Command { std: "docker" "start" "-a" "52a6d594e2338447fbc59be0a80691a6abc14f24b4dea1b7fc6471a72c6216d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling tryagain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `instant`
[INFO] [stdout]   --> src/backoff.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     instant: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ExponentialBackoff` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/backoff.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instant`
[INFO] [stdout]   --> src/backoff.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     instant: Instant,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ExponentialBackoff` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/backoff.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug, Clone, Copy)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tryagain-e087e1928649c8c0)
[INFO] running `Command { std: "docker" "inspect" "52a6d594e2338447fbc59be0a80691a6abc14f24b4dea1b7fc6471a72c6216d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a6d594e2338447fbc59be0a80691a6abc14f24b4dea1b7fc6471a72c6216d9", kill_on_drop: false }`
[INFO] [stdout] 52a6d594e2338447fbc59be0a80691a6abc14f24b4dea1b7fc6471a72c6216d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8545438d0dc8c5e9ade8350e9211e24a6d8185a9f06b00f911bafe42bf50357e
[INFO] running `Command { std: "docker" "start" "-a" "8545438d0dc8c5e9ade8350e9211e24a6d8185a9f06b00f911bafe42bf50357e", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `instant`
[INFO] [stdout] 
[INFO] [stderr]   --> src/backoff.rs:18:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 18 |     instant: Instant,
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `ExponentialBackoff` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/backoff.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[derive(Debug, Clone, Copy)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `tryagain` (lib) generated 1 warning
[INFO] [stderr] warning: `tryagain` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tryagain-e087e1928649c8c0)
[INFO] [stderr]    Doc-tests tryagain
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/sync.rs - sync::retry (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/future.rs - future::retry_if (line 48) ... ok
[INFO] [stdout] test src/future.rs - future::retry (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/sync.rs - sync::retry_if (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8545438d0dc8c5e9ade8350e9211e24a6d8185a9f06b00f911bafe42bf50357e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8545438d0dc8c5e9ade8350e9211e24a6d8185a9f06b00f911bafe42bf50357e", kill_on_drop: false }`
[INFO] [stdout] 8545438d0dc8c5e9ade8350e9211e24a6d8185a9f06b00f911bafe42bf50357e