[INFO] crate maybe-single 0.12.0 is already in cache
[INFO] testing maybe-single-0.12.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate maybe-single 0.12.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate maybe-single 0.12.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate maybe-single 0.12.0
[INFO] finished tweaking crates.io crate maybe-single 0.12.0
[INFO] tweaked toml for crates.io crate maybe-single 0.12.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e2fac06bce3a13c9b9d7c92171e48451f6aca6a022436d65751b93990ec37c1
[INFO] running `"docker" "start" "-a" "1e2fac06bce3a13c9b9d7c92171e48451f6aca6a022436d65751b93990ec37c1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling maybe-single v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/nio.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RwLockReadGuard`, `RwLockWriteGuard`
[INFO] [stderr]  --> src/nio.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | use parking_lot::{Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `read_lock`
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     read_lock: Option<RwLockReadGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `write_lock`
[INFO] [stderr]   --> src/lib.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     write_lock: Option<RwLockWriteGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "1e2fac06bce3a13c9b9d7c92171e48451f6aca6a022436d65751b93990ec37c1"`
[INFO] running `"docker" "rm" "-f" "1e2fac06bce3a13c9b9d7c92171e48451f6aca6a022436d65751b93990ec37c1"`
[INFO] [stdout] 1e2fac06bce3a13c9b9d7c92171e48451f6aca6a022436d65751b93990ec37c1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49dd689963a63e9957c202e5acf2563d465599d8675c8c010ff6560ffce710e1
[INFO] running `"docker" "start" "-a" "49dd689963a63e9957c202e5acf2563d465599d8675c8c010ff6560ffce710e1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/nio.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RwLockReadGuard`, `RwLockWriteGuard`
[INFO] [stderr]  --> src/nio.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | use parking_lot::{Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `read_lock`
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     read_lock: Option<RwLockReadGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `write_lock`
[INFO] [stderr]   --> src/lib.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     write_lock: Option<RwLockWriteGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling maybe-single v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/nio.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RwLockReadGuard`, `RwLockWriteGuard`
[INFO] [stderr]  --> src/nio.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | use parking_lot::{Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]   --> src/nio.rs:87:16
[INFO] [stderr]    |
[INFO] [stderr] 87 |     use rand::{thread_rng, Rng};
[INFO] [stderr]    |                ^^^^^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/nio.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     use std::thread::sleep;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/nio.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |     use std::time::Duration;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::time::Instant`
[INFO] [stderr]   --> src/nio.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     use tokio::time::Instant;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future::Future`
[INFO] [stderr]    --> src/lib.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |     use std::future::Future;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]    --> src/lib.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |     use std::pin::Pin;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `read_lock`
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     read_lock: Option<RwLockReadGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `write_lock`
[INFO] [stderr]   --> src/lib.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     write_lock: Option<RwLockWriteGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 18.51s
[INFO] running `"docker" "inspect" "49dd689963a63e9957c202e5acf2563d465599d8675c8c010ff6560ffce710e1"`
[INFO] running `"docker" "rm" "-f" "49dd689963a63e9957c202e5acf2563d465599d8675c8c010ff6560ffce710e1"`
[INFO] [stdout] 49dd689963a63e9957c202e5acf2563d465599d8675c8c010ff6560ffce710e1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a66c605b7f1a3442d1a8558f5a06ead578b8ee5d985591ece299663a297ff7c9
[INFO] running `"docker" "start" "-a" "a66c605b7f1a3442d1a8558f5a06ead578b8ee5d985591ece299663a297ff7c9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/nio.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RwLockReadGuard`, `RwLockWriteGuard`
[INFO] [stderr]  --> src/nio.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | use parking_lot::{Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `read_lock`
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     read_lock: Option<RwLockReadGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `write_lock`
[INFO] [stderr]   --> src/lib.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     write_lock: Option<RwLockWriteGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/nio.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RwLockReadGuard`, `RwLockWriteGuard`
[INFO] [stderr]  --> src/nio.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | use parking_lot::{Mutex, RwLock, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]   --> src/nio.rs:87:16
[INFO] [stderr]    |
[INFO] [stderr] 87 |     use rand::{thread_rng, Rng};
[INFO] [stderr]    |                ^^^^^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/nio.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     use std::thread::sleep;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/nio.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |     use std::time::Duration;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::time::Instant`
[INFO] [stderr]   --> src/nio.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     use tokio::time::Instant;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future::Future`
[INFO] [stderr]    --> src/lib.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |     use std::future::Future;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]    --> src/lib.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |     use std::pin::Pin;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `read_lock`
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     read_lock: Option<RwLockReadGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `write_lock`
[INFO] [stderr]   --> src/lib.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     write_lock: Option<RwLockWriteGuard<'a, ()>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/maybe_single-bcd8d23f678f3d5e
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test nio::test::maybe_should_be_send ... ok
[INFO] [stdout]  exec 45 start
[INFO] [stdout]  exec 1 start
[INFO] [stdout] test nio::test::maybe_should_be_sync ... ok
[INFO] [stdout]  exec 45 end
[INFO] [stdout]  exec 5 start
[INFO] [stdout]  exec 1 end
[INFO] [stdout] MaybeSingle --- Dropping DATA ---
[INFO] [stdout]  exec 5 end
[INFO] [stdout]  exec 0 start
[INFO] [stdout]  exec 28 start
[INFO] [stdout]  exec 0 end
[INFO] [stdout] MaybeSingle --- Dropping DATA ---
[INFO] [stdout]  exec 28 end
[INFO] [stdout]  exec 12 start
[INFO] [stdout]  exec 12 end
[INFO] [stdout]  exec 54 start
[INFO] [stdout]  exec 54 end
[INFO] [stdout]  exec 29 start
[INFO] [stdout]  exec 29 end
[INFO] [stdout]  exec 14 start
[INFO] [stdout]  exec 14 end
[INFO] [stdout]  exec 76 start
[INFO] [stdout]  exec 76 end
[INFO] [stdout]  exec 30 start
[INFO] [stdout]  exec 30 end
[INFO] [stdout]  exec 15 start
[INFO] [stdout]  exec 15 end
[INFO] [stdout]  exec 72 start
[INFO] [stdout]  exec 72 end
[INFO] [stdout]  exec 3 start
[INFO] [stdout]  exec 3 end
[INFO] [stdout]  exec 46 start
[INFO] [stdout]  exec 46 end
[INFO] [stdout]  exec 16 start
[INFO] [stdout]  exec 16 end
[INFO] [stdout]  exec 87 start
[INFO] [stdout]  exec 87 end
[INFO] [stdout]  exec 89 start
[INFO] [stdout]  exec 89 end
[INFO] [stdout]  exec 95 start
[INFO] [stdout]  exec 95 end
[INFO] [stdout]  exec 17 start
[INFO] [stdout]  exec 17 end
[INFO] [stdout]  exec 98 start
[INFO] [stdout]  exec 98 end
[INFO] [stdout]  exec 92 start
[INFO] [stdout]  exec 92 end
[INFO] [stdout]  exec 18 start
[INFO] [stdout]  exec 18 end
[INFO] [stdout]  exec 4 start
[INFO] [stdout]  exec 19 start
[INFO] [stdout]  exec 2 start
[INFO] [stdout]  exec 19 end
[INFO] [stdout]  exec 59 start
[INFO] [stdout]  exec 28 start
[INFO] [stdout]  exec 29 start
[INFO] [stdout]  exec 60 start
[INFO] [stdout]  exec 2 end
[INFO] [stdout]  exec 30 start
[INFO] [stdout]  exec 61 start
[INFO] [stdout]  exec 46 start
[INFO] [stdout]  exec 54 start
[INFO] [stdout]  exec 30 end
[INFO] [stdout]  exec 61 end
[INFO] [stdout]  exec 77 start
[INFO] [stdout]  exec 74 start
[INFO] [stdout]  exec 81 start
[INFO] [stdout]  exec 75 start
[INFO] [stdout]  exec 73 start
[INFO] [stdout]  exec 80 start
[INFO] [stdout]  exec 78 start
[INFO] [stdout]  exec 73 end
[INFO] [stdout]  exec 83 start
[INFO] [stdout]  exec 84 start
[INFO] [stdout]  exec 85 start
[INFO] [stdout]  exec 86 start
[INFO] [stdout]  exec 87 start
[INFO] [stdout]  exec 88 start
[INFO] [stdout]  exec 89 start
[INFO] [stdout]  exec 90 start
[INFO] [stdout]  exec 91 start
[INFO] [stdout]  exec 92 start
[INFO] [stdout]  exec 93 start
[INFO] [stdout]  exec 94 start
[INFO] [stdout]  exec 95 start
[INFO] [stdout]  exec 96 start
[INFO] [stdout]  exec 97 start
[INFO] [stdout]  exec 98 start
[INFO] [stdout]  exec 99 start
[INFO] [stdout]  exec 79 start
[INFO] [stdout]  exec 96 end
[INFO] [stdout]  exec 94 end
[INFO] [stdout]  exec 84 end
[INFO] [stdout]  exec 77 end
[INFO] [stdout]  exec 8 start
[INFO] [stdout]  exec 58 start
[INFO] [stdout]  exec 8 end
[INFO] [stdout]  exec 98 end
[INFO] [stdout]  exec 99 end
[INFO] [stdout]  exec 86 end
[INFO] [stdout]  exec 75 end
[INFO] [stdout]  exec 24 start
[INFO] [stdout]  exec 9 start
[INFO] [stdout]  exec 74 end
[INFO] [stdout]  exec 95 end
[INFO] [stdout]  exec 92 end
[INFO] [stdout]  exec 89 end
[INFO] [stdout]  exec 87 end
[INFO] [stdout]  exec 10 start
[INFO] [stdout]  exec 85 end
[INFO] [stdout]  exec 88 end
[INFO] [stdout]  exec 91 end
[INFO] [stdout]  exec 97 end
[INFO] [stdout]  exec 11 start
[INFO] [stdout]  exec 93 end
[INFO] [stdout]  exec 79 end
[INFO] [stdout]  exec 90 end
[INFO] [stdout]  exec 10 end
[INFO] [stdout]  exec 12 start
[INFO] [stdout]  exec 9 end
[INFO] [stdout]  exec 11 end
[INFO] [stdout]  exec 13 start
[INFO] [stdout]  exec 14 start
[INFO] [stdout]  exec 15 start
[INFO] [stdout]  exec 13 end
[INFO] [stdout]  exec 12 end
[INFO] [stdout]  exec 16 start
[INFO] [stdout]  exec 17 start
[INFO] [stdout]  exec 18 start
[INFO] [stdout]  exec 21 start
[INFO] [stdout]  exec 22 start
[INFO] [stdout]  exec 20 start
[INFO] [stdout]  exec 23 start
[INFO] [stdout]  exec 26 start
[INFO] [stdout]  exec 25 start
[INFO] [stdout]  exec 27 start
[INFO] [stdout]  exec 32 start
[INFO] [stdout]  exec 31 start
[INFO] [stdout]  exec 33 start
[INFO] [stdout]  exec 34 start
[INFO] [stdout]  exec 35 start
[INFO] [stdout]  exec 36 start
[INFO] [stdout]  exec 37 start
[INFO] [stdout]  exec 38 start
[INFO] [stdout]  exec 39 start
[INFO] [stdout]  exec 40 start
[INFO] [stdout]  exec 41 start
[INFO] [stdout]  exec 42 start
[INFO] [stdout]  exec 43 start
[INFO] [stdout]  exec 44 start
[INFO] [stdout]  exec 48 start
[INFO] [stdout]  exec 45 start
[INFO] [stdout]  exec 49 start
[INFO] [stdout]  exec 47 start
[INFO] [stdout]  exec 50 start
[INFO] [stdout]  exec 58 end
[INFO] [stdout]  exec 51 start
[INFO] [stdout]  exec 52 start
[INFO] [stdout]  exec 53 start
[INFO] [stdout]  exec 56 start
[INFO] [stdout]  exec 17 end
[INFO] [stdout]  exec 18 end
[INFO] [stdout]  exec 57 start
[INFO] [stdout]  exec 55 start
[INFO] [stdout]  exec 16 end
[INFO] [stdout]  exec 21 end
[INFO] [stdout]  exec 15 end
[INFO] [stdout]  exec 22 end
[INFO] [stdout]  exec 31 end
[INFO] [stdout]  exec 32 end
[INFO] [stdout]  exec 27 end
[INFO] [stdout]  exec 34 end
[INFO] [stdout]  exec 25 end
[INFO] [stdout]  exec 33 end
[INFO] [stdout]  exec 35 end
[INFO] [stdout]  exec 26 end
[INFO] [stdout]  exec 20 end
[INFO] [stdout]  exec 23 end
[INFO] [stdout]  exec 37 end
[INFO] [stdout]  exec 39 end
[INFO] [stdout]  exec 7 start
[INFO] [stdout]  exec 38 end
[INFO] [stdout]  exec 41 end
[INFO] [stdout]  exec 36 end
[INFO] [stdout]  exec 42 end
[INFO] [stdout]  exec 40 end
[INFO] [stdout]  exec 43 end
[INFO] [stdout]  exec 48 end
[INFO] [stdout]  exec 49 end
[INFO] [stdout]  exec 45 end
[INFO] [stdout]  exec 47 end
[INFO] [stdout]  exec 55 end
[INFO] [stdout]  exec 56 end
[INFO] [stdout]  exec 44 end
[INFO] [stdout]  exec 52 end
[INFO] [stdout]  exec 50 end
[INFO] [stdout]  exec 57 end
[INFO] [stdout]  exec 53 end
[INFO] [stdout]  exec 14 end
[INFO] [stdout]  exec 51 end
[INFO] [stdout]  exec 7 end
[INFO] [stdout]  exec 6 start
[INFO] [stdout]  exec 5 start
[INFO] [stdout]  exec 6 end
[INFO] [stdout]  exec 4 start
[INFO] [stdout]  exec 5 end
[INFO] [stdout]  exec 3 start
[INFO] [stdout]  exec 62 start
[INFO] [stdout]  exec 4 end
[INFO] [stdout]  exec 62 end
[INFO] [stdout]  exec 63 start
[INFO] [stdout]  exec 64 start
[INFO] [stdout]  exec 65 start
[INFO] [stdout]  exec 66 start
[INFO] [stdout]  exec 67 start
[INFO] [stdout]  exec 68 start
[INFO] [stdout]  exec 80 end
[INFO] [stdout]  exec 65 end
[INFO] [stdout]  exec 83 end
[INFO] [stdout]  exec 3 end
[INFO] [stdout]  exec 66 end
[INFO] [stdout]  exec 64 end
[INFO] [stdout]  exec 67 end
[INFO] [stdout]  exec 68 end
[INFO] [stdout]  exec 63 end
[INFO] [stdout]  exec 70 start
[INFO] [stdout]  exec 71 start
[INFO] [stdout]  exec 72 start
[INFO] [stdout]  exec 71 end
[INFO] [stdout]  exec 72 end
[INFO] [stdout]  exec 70 end
[INFO] [stdout]  exec 82 start
[INFO] [stdout]  exec 82 end
[INFO] [stdout]  exec 24 end
[INFO] [stdout]  exec 81 end
[INFO] [stdout]  exec 76 start
[INFO] [stdout]  exec 76 end
[INFO] [stdout]  exec 69 start
[INFO] [stdout]  exec 4 end
[INFO] [stdout]  exec 20 start
[INFO] [stdout]  exec 28 end
[INFO] [stdout]  exec 69 end
[INFO] [stdout]  exec 59 end
[INFO] [stdout]  exec 60 end
[INFO] [stdout]  exec 78 end
[INFO] [stdout]  exec 29 end
[INFO] [stdout]  exec 20 end
[INFO] [stdout]  exec 21 start
[INFO] [stdout]  exec 46 end
[INFO] [stdout]  exec 21 end
[INFO] [stdout]  exec 22 start
[INFO] [stdout]  exec 22 end
[INFO] [stdout]  exec 23 start
[INFO] [stdout]  exec 54 end
[INFO] [stdout] MaybeSingle --- Dropping DATA ---
[INFO] [stdout] test test::should_execute_in_parallel ... ok
[INFO] [stdout]  exec 23 end
[INFO] [stdout]  exec 24 start
[INFO] [stdout]  exec 24 end
[INFO] [stdout]  exec 2 start
[INFO] [stdout]  exec 2 end
[INFO] [stdout]  exec 25 start
[INFO] [stdout]  exec 25 end
[INFO] [stdout]  exec 32 start
[INFO] [stdout]  exec 32 end
[INFO] [stdout]  exec 33 start
[INFO] [stdout]  exec 33 end
[INFO] [stdout]  exec 39 start
[INFO] [stdout]  exec 39 end
[INFO] [stdout]  exec 34 start
[INFO] [stdout]  exec 34 end
[INFO] [stdout]  exec 40 start
[INFO] [stdout]  exec 40 end
[INFO] [stdout]  exec 35 start
[INFO] [stdout]  exec 35 end
[INFO] [stdout]  exec 41 start
[INFO] [stdout]  exec 41 end
[INFO] [stdout]  exec 48 start
[INFO] [stdout]  exec 48 end
[INFO] [stdout]  exec 42 start
[INFO] [stdout]  exec 42 end
[INFO] [stdout]  exec 38 start
[INFO] [stdout]  exec 38 end
[INFO] [stdout]  exec 49 start
[INFO] [stdout]  exec 49 end
[INFO] [stdout]  exec 43 start
[INFO] [stdout]  exec 43 end
[INFO] [stdout]  exec 31 start
[INFO] [stdout]  exec 31 end
[INFO] [stdout]  exec 50 start
[INFO] [stdout]  exec 50 end
[INFO] [stdout]  exec 44 start
[INFO] [stdout]  exec 44 end
[INFO] [stdout]  exec 51 start
[INFO] [stdout]  exec 51 end
[INFO] [stdout]  exec 47 start
[INFO] [stdout]  exec 47 end
[INFO] [stdout]  exec 52 start
[INFO] [stdout]  exec 52 end
[INFO] [stdout]  exec 56 start
[INFO] [stdout]  exec 56 end
[INFO] [stdout]  exec 53 start
[INFO] [stdout]  exec 53 end
[INFO] [stdout]  exec 57 start
[INFO] [stdout]  exec 57 end
[INFO] [stdout]  exec 55 start
[INFO] [stdout]  exec 55 end
[INFO] [stdout]  exec 58 start
[INFO] [stdout]  exec 58 end
[INFO] [stdout]  exec 59 start
[INFO] [stdout]  exec 59 end
[INFO] [stdout]  exec 60 start
[INFO] [stdout]  exec 60 end
[INFO] [stdout]  exec 61 start
[INFO] [stdout]  exec 61 end
[INFO] [stdout]  exec 62 start
[INFO] [stdout]  exec 62 end
[INFO] [stdout]  exec 63 start
[INFO] [stdout]  exec 63 end
[INFO] [stdout]  exec 64 start
[INFO] [stdout]  exec 64 end
[INFO] [stdout]  exec 65 start
[INFO] [stdout]  exec 65 end
[INFO] [stdout]  exec 66 start
[INFO] [stdout]  exec 66 end
[INFO] [stdout]  exec 67 start
[INFO] [stdout]  exec 67 end
[INFO] [stdout]  exec 68 start
[INFO] [stdout]  exec 68 end
[INFO] [stdout]  exec 69 start
[INFO] [stdout]  exec 69 end
[INFO] [stdout]  exec 78 start
[INFO] [stdout]  exec 78 end
[INFO] [stdout]  exec 70 start
[INFO] [stdout]  exec 70 end
[INFO] [stdout]  exec 74 start
[INFO] [stdout]  exec 74 end
[INFO] [stdout]  exec 71 start
[INFO] [stdout]  exec 71 end
[INFO] [stdout]  exec 79 start
[INFO] [stdout]  exec 79 end
[INFO] [stdout]  exec 75 start
[INFO] [stdout]  exec 75 end
[INFO] [stdout]  exec 77 start
[INFO] [stdout]  exec 77 end
[INFO] [stdout]  exec 73 start
[INFO] [stdout]  exec 73 end
[INFO] [stdout]  exec 80 start
[INFO] [stdout]  exec 80 end
[INFO] [stdout]  exec 81 start
[INFO] [stdout]  exec 81 end
[INFO] [stdout]  exec 82 start
[INFO] [stdout]  exec 82 end
[INFO] [stdout]  exec 83 start
[INFO] [stdout]  exec 83 end
[INFO] [stdout]  exec 84 start
[INFO] [stdout]  exec 84 end
[INFO] [stdout]  exec 1 start
[INFO] [stdout]  exec 1 end
[INFO] [stdout]  exec 0 start
[INFO] [stdout]  exec 0 end
[INFO] [stdout]  exec 97 start
[INFO] [stdout]  exec 97 end
[INFO] [stdout]  exec 88 start
[INFO] [stdout]  exec 88 end
[INFO] [stdout]  exec 85 start
[INFO] [stdout]  exec 85 end
[INFO] [stdout]  exec 13 start
[INFO] [stdout]  exec 13 end
[INFO] [stdout]  exec 27 start
[INFO] [stdout]  exec 27 end
[INFO] [stdout]  exec 91 start
[INFO] [stdout]  exec 91 end
[INFO] [stdout]  exec 86 start
[INFO] [stdout]  exec 86 end
[INFO] [stdout]  exec 8 start
[INFO] [stdout]  exec 8 end
[INFO] [stdout]  exec 19 start
[INFO] [stdout]  exec 19 end
[INFO] [stdout]  exec 90 start
[INFO] [stdout]  exec 90 end
[INFO] [stdout]  exec 6 start
[INFO] [stdout]  exec 6 end
[INFO] [stdout]  exec 96 start
[INFO] [stdout]  exec 96 end
[INFO] [stdout]  exec 37 start
[INFO] [stdout]  exec 37 end
[INFO] [stdout]  exec 9 start
[INFO] [stdout]  exec 9 end
[INFO] [stdout]  exec 7 start
[INFO] [stdout]  exec 7 end
[INFO] [stdout]  exec 99 start
[INFO] [stdout]  exec 99 end
[INFO] [stdout]  exec 26 start
[INFO] [stdout]  exec 26 end
[INFO] [stdout]  exec 36 start
[INFO] [stdout]  exec 36 end
[INFO] [stdout]  exec 10 start
[INFO] [stdout]  exec 10 end
[INFO] [stdout]  exec 93 start
[INFO] [stdout]  exec 93 end
[INFO] [stderr]    Doc-tests maybe-single
[INFO] [stdout]  exec 94 start
[INFO] [stdout]  exec 94 end
[INFO] [stdout]  exec 11 start
[INFO] [stdout]  exec 11 end
[INFO] [stdout] MaybeSingle --- Dropping DATA ---
[INFO] [stdout] test test::should_execute_serially ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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 `"docker" "inspect" "a66c605b7f1a3442d1a8558f5a06ead578b8ee5d985591ece299663a297ff7c9"`
[INFO] running `"docker" "rm" "-f" "a66c605b7f1a3442d1a8558f5a06ead578b8ee5d985591ece299663a297ff7c9"`
[INFO] [stdout] a66c605b7f1a3442d1a8558f5a06ead578b8ee5d985591ece299663a297ff7c9