[INFO] updating cached repository https://github.com/vrcod/rust-pi-approximation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdfb33f9acef6dfccd7619bcde367b3f804148df
[INFO] testing vrcod/rust-pi-approximation against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvrcod%2Frust-pi-approximation" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vrcod/rust-pi-approximation on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vrcod/rust-pi-approximation
[INFO] finished tweaking git repo https://github.com/vrcod/rust-pi-approximation
[INFO] tweaked toml for git repo https://github.com/vrcod/rust-pi-approximation written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/vrcod/rust-pi-approximation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /workspace/builds/worker-13/source/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /workspace/builds/worker-13/source/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57881f805935d1776a26ba91147fce2454f9fbdcb23c703f95925dccb78ee102
[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" "57881f805935d1776a26ba91147fce2454f9fbdcb23c703f95925dccb78ee102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57881f805935d1776a26ba91147fce2454f9fbdcb23c703f95925dccb78ee102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57881f805935d1776a26ba91147fce2454f9fbdcb23c703f95925dccb78ee102", kill_on_drop: false }`
[INFO] [stdout] 57881f805935d1776a26ba91147fce2454f9fbdcb23c703f95925dccb78ee102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] aa70d706482edc10698e20400984ebd977f30875e798a480a3610e119f2037b7
[INFO] running `Command { std: "docker" "start" "-a" "aa70d706482edc10698e20400984ebd977f30875e798a480a3610e119f2037b7", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling rust-stream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]  --> src/bin/max_threads.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let start = time::precise_time_ns();
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]   --> src/bin/max_threads.rs:30:38
[INFO] [stdout]    |
[INFO] [stdout] 30 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]  --> src/bin/single_thread.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let start = time::precise_time_ns();
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]   --> src/bin/single_thread.rs:17:38
[INFO] [stdout]    |
[INFO] [stdout] 17 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]  --> src/bin/two_threads.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let start = time::precise_time_ns();
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]   --> src/bin/two_threads.rs:40:38
[INFO] [stdout]    |
[INFO] [stdout] 40 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/two_threads.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 |             task1.send(p);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/two_threads.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 |             task2.send(p);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/max_threads.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 |             task.send(p);
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.96s
[INFO] running `Command { std: "docker" "inspect" "aa70d706482edc10698e20400984ebd977f30875e798a480a3610e119f2037b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa70d706482edc10698e20400984ebd977f30875e798a480a3610e119f2037b7", kill_on_drop: false }`
[INFO] [stdout] aa70d706482edc10698e20400984ebd977f30875e798a480a3610e119f2037b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fd55f2de07a35a5df713ced00a8b21191bfb310f4897572f68ab27ff060dd04
[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" "9fd55f2de07a35a5df713ced00a8b21191bfb310f4897572f68ab27ff060dd04", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling rust-stream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]  --> src/bin/single_thread.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let start = time::precise_time_ns();
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]   --> src/bin/single_thread.rs:17:38
[INFO] [stdout]    |
[INFO] [stdout] 17 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]  --> src/bin/max_threads.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let start = time::precise_time_ns();
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]   --> src/bin/max_threads.rs:30:38
[INFO] [stdout]    |
[INFO] [stdout] 30 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]  --> src/bin/two_threads.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let start = time::precise_time_ns();
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]   --> src/bin/two_threads.rs:40:38
[INFO] [stdout]    |
[INFO] [stdout] 40 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/max_threads.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 |             task.send(p);
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/two_threads.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 |             task1.send(p);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bin/two_threads.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 |             task2.send(p);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "9fd55f2de07a35a5df713ced00a8b21191bfb310f4897572f68ab27ff060dd04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fd55f2de07a35a5df713ced00a8b21191bfb310f4897572f68ab27ff060dd04", kill_on_drop: false }`
[INFO] [stdout] 9fd55f2de07a35a5df713ced00a8b21191bfb310f4897572f68ab27ff060dd04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e8a0e69c5b5d13fed13b4f1cfca3296e8cdee559bc20c03307f69c7e80728e0
[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" "1e8a0e69c5b5d13fed13b4f1cfca3296e8cdee559bc20c03307f69c7e80728e0", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/bin/two_threads.rs:8:14
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 8 |     let start = time::precise_time_ns();
[INFO] [stdout] 
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stderr]   --> src/bin/two_threads.rs:40:38
[INFO] [stderr]    |
[INFO] [stderr] 40 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/two_threads.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 |             task1.send(p);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/two_threads.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 |             task2.send(p);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stderr]  --> src/bin/single_thread.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let start = time::precise_time_ns();
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stderr]  --> src/bin/max_threads.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let start = time::precise_time_ns();
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stderr]   --> src/bin/max_threads.rs:30:38
[INFO] [stderr]    |
[INFO] [stderr] 30 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'time::precise_time_ns': Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stderr]   --> src/bin/single_thread.rs:17:38
[INFO] [stderr]    |
[INFO] [stderr] 17 |     println!("Execution time:   {} ns", time::precise_time_ns() - start);
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/max_threads.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 |             task.send(p);
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/max_threads-5172a8427d820224
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/single_thread-4ced55386d7d31ba
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/two_threads-e1b569e95932d92f
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1e8a0e69c5b5d13fed13b4f1cfca3296e8cdee559bc20c03307f69c7e80728e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8a0e69c5b5d13fed13b4f1cfca3296e8cdee559bc20c03307f69c7e80728e0", kill_on_drop: false }`
[INFO] [stdout] 1e8a0e69c5b5d13fed13b4f1cfca3296e8cdee559bc20c03307f69c7e80728e0