[INFO] fetching crate mm_subscribe 0.1.1...
[INFO] testing mm_subscribe-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate mm_subscribe 0.1.1 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate mm_subscribe 0.1.1 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 mm_subscribe 0.1.1
[INFO] finished tweaking crates.io crate mm_subscribe 0.1.1
[INFO] tweaked toml for crates.io crate mm_subscribe 0.1.1 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate crates.io crate mm_subscribe 0.1.1 already has a lockfile, it will not be regenerated
[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-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7d6c5aa5b88c7b9b5a7f49b725c4e4aa9ac44404ca68f089addb78dc53782b5
[INFO] running `Command { std: "docker" "start" "-a" "b7d6c5aa5b88c7b9b5a7f49b725c4e4aa9ac44404ca68f089addb78dc53782b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7d6c5aa5b88c7b9b5a7f49b725c4e4aa9ac44404ca68f089addb78dc53782b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7d6c5aa5b88c7b9b5a7f49b725c4e4aa9ac44404ca68f089addb78dc53782b5", kill_on_drop: false }`
[INFO] [stdout] b7d6c5aa5b88c7b9b5a7f49b725c4e4aa9ac44404ca68f089addb78dc53782b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d44720d31e89ca9d59242c3d875c0ec7dadd411e54c373bd6958f4f9e5901073
[INFO] running `Command { std: "docker" "start" "-a" "d44720d31e89ca9d59242c3d875c0ec7dadd411e54c373bd6958f4f9e5901073", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling minimonkey v0.1.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling mm_subscribe v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Duration::from_secs` that must be used
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Duration::from_secs(1);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.69s
[INFO] running `Command { std: "docker" "inspect" "d44720d31e89ca9d59242c3d875c0ec7dadd411e54c373bd6958f4f9e5901073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d44720d31e89ca9d59242c3d875c0ec7dadd411e54c373bd6958f4f9e5901073", kill_on_drop: false }`
[INFO] [stdout] d44720d31e89ca9d59242c3d875c0ec7dadd411e54c373bd6958f4f9e5901073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc6f8ca33ced3c5e4f316d6c00ed42e2c38c7c732cc1d066fd2ae457fce2aa05
[INFO] running `Command { std: "docker" "start" "-a" "fc6f8ca33ced3c5e4f316d6c00ed42e2c38c7c732cc1d066fd2ae457fce2aa05", kill_on_drop: false }`
[INFO] [stderr]    Compiling mm_subscribe v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Duration::from_secs` that must be used
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         Duration::from_secs(1);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/mm_subscribe-8224eb2d507eb6db)
[INFO] running `Command { std: "docker" "inspect" "fc6f8ca33ced3c5e4f316d6c00ed42e2c38c7c732cc1d066fd2ae457fce2aa05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6f8ca33ced3c5e4f316d6c00ed42e2c38c7c732cc1d066fd2ae457fce2aa05", kill_on_drop: false }`
[INFO] [stdout] fc6f8ca33ced3c5e4f316d6c00ed42e2c38c7c732cc1d066fd2ae457fce2aa05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9bad42a9e1a8de3b706625cf275e526760df51f124b125c4280b089f18fa03aa
[INFO] running `Command { std: "docker" "start" "-a" "9bad42a9e1a8de3b706625cf275e526760df51f124b125c4280b089f18fa03aa", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `Duration::from_secs` that must be used
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         Duration::from_secs(1);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mm_subscribe` (bin "mm_subscribe" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mm_subscribe-8224eb2d507eb6db)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9bad42a9e1a8de3b706625cf275e526760df51f124b125c4280b089f18fa03aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bad42a9e1a8de3b706625cf275e526760df51f124b125c4280b089f18fa03aa", kill_on_drop: false }`
[INFO] [stdout] 9bad42a9e1a8de3b706625cf275e526760df51f124b125c4280b089f18fa03aa