[INFO] fetching crate dbg 1.0.4...
[INFO] testing dbg-1.0.4 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate dbg 1.0.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate dbg 1.0.4 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dbg 1.0.4
[INFO] finished tweaking crates.io crate dbg 1.0.4
[INFO] tweaked toml for crates.io crate dbg 1.0.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", 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] fac34abd3fa1890edcf02e3d4a7d12498c0a60e2c63c6b575d0d5ce5486c3f0a
[INFO] running `Command { std: "docker" "start" "-a" "fac34abd3fa1890edcf02e3d4a7d12498c0a60e2c63c6b575d0d5ce5486c3f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fac34abd3fa1890edcf02e3d4a7d12498c0a60e2c63c6b575d0d5ce5486c3f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac34abd3fa1890edcf02e3d4a7d12498c0a60e2c63c6b575d0d5ce5486c3f0a", kill_on_drop: false }`
[INFO] [stdout] fac34abd3fa1890edcf02e3d4a7d12498c0a60e2c63c6b575d0d5ce5486c3f0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ade921df6a09691149670943feffdd432958d027f6834a5e7aab6e5dd6b8f499
[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" "ade921df6a09691149670943feffdd432958d027f6834a5e7aab6e5dd6b8f499", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling dbg v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:7:51
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(use_nightly, feature(core_intrinsics, specialization))]
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             unsafe { type_name::<T>() })
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "ade921df6a09691149670943feffdd432958d027f6834a5e7aab6e5dd6b8f499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ade921df6a09691149670943feffdd432958d027f6834a5e7aab6e5dd6b8f499", kill_on_drop: false }`
[INFO] [stdout] ade921df6a09691149670943feffdd432958d027f6834a5e7aab6e5dd6b8f499
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87ecaccfcfdf9a3336808c58eb428f4c0f985003d4ea75763f94140f5ca2753b
[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" "87ecaccfcfdf9a3336808c58eb428f4c0f985003d4ea75763f94140f5ca2753b", kill_on_drop: false }`
[INFO] [stderr]    Compiling dbg v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:7:51
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(use_nightly, feature(core_intrinsics, specialization))]
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             unsafe { type_name::<T>() })
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:7:51
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(use_nightly, feature(core_intrinsics, specialization))]
[INFO] [stdout]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             unsafe { type_name::<T>() })
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "87ecaccfcfdf9a3336808c58eb428f4c0f985003d4ea75763f94140f5ca2753b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ecaccfcfdf9a3336808c58eb428f4c0f985003d4ea75763f94140f5ca2753b", kill_on_drop: false }`
[INFO] [stdout] 87ecaccfcfdf9a3336808c58eb428f4c0f985003d4ea75763f94140f5ca2753b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da83c7c77bdeac0375ae65c1b208d432cd96d68d3c97ada2c580e8e94c77c622
[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" "da83c7c77bdeac0375ae65c1b208d432cd96d68d3c97ada2c580e8e94c77c622", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/lib.rs:7:51
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![cfg_attr(use_nightly, feature(core_intrinsics, specialization))]
[INFO] [stderr]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/lib.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             unsafe { type_name::<T>() })
[INFO] [stderr]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> src/lib.rs:7:51
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![cfg_attr(use_nightly, feature(core_intrinsics, specialization))]
[INFO] [stderr]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/lib.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             unsafe { type_name::<T>() })
[INFO] [stderr]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dbg-1c412439cdf4df43
[INFO] [stdout] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:234]
[INFO] [stdout] running 10 tests
[INFO] [stderr] => Point{x: 1, y: 2,} = Point {
[INFO] [stderr]     x: 1,
[INFO] [stderr]     y: 2,
[INFO] [stderr] }
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:237]
[INFO] [stderr] => p = Point {
[INFO] [stderr]     x: 4,
[INFO] [stderr]     y: 5,
[INFO] [stderr] }
[INFO] [stderr] 
[INFO] [stdout] test tests::common_use ... ok
[INFO] [stderr] [DEBUGGING, src/lib.rs:249]
[INFO] [stdout] test tests::types ... ok
[INFO] [stderr] => a = 1
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:250]
[INFO] [stderr] => a = 1, b = 2
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:251]
[INFO] [stderr] => a = 1, b = 2, a + b = 3
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:255]
[INFO] [stderr] => &p = Point {
[INFO] [stderr]     x: 4,
[INFO] [stderr]     y: 5,
[INFO] [stderr] }, &q = Point {
[INFO] [stderr]     x: 2,
[INFO] [stderr]     y: 1,
[INFO] [stderr] }
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:230]
[INFO] [stderr] => () = ()
[INFO] [stderr] 
[INFO] [stdout] test tests::unit_works ... ok
[INFO] [stderr] [DEBUGGING, src/lib.rs:314]
[INFO] [stdout] test tests::panics ... ok
[INFO] [stdout] test tests::factorial_labels ... ok
[INFO] [stdout] test tests::factorial_simple ... ok
[INFO] [stdout] test tests::factorial_multiarg ... ok
[INFO] [stdout] test tests::not_debug ... ok
[INFO] [stdout] test tests::labels ... ok
[INFO] [stdout] test tests::passthrough ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] => a = 1, panic!() = [DEBUGGING, src/lib.rs:287]
[INFO] [stderr] => "are we at the base case?" = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:287]
[INFO] [stderr] => "are we at the base case?" = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:287]
[INFO] [stderr] => "are we at the base case?" = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:287]
[INFO] [stderr] => "are we at the base case?" = true
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:288]
[INFO] [stderr] => "base value" = 1
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:290]
[INFO] [stderr] => "ascending with n * factorial(n - 1)" = 2
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:290]
[INFO] [stderr] => "ascending with n * factorial(n - 1)" = 6
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:290]
[INFO] [stderr] => "ascending with n * factorial(n - 1)" = 24
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:294]
[INFO] [stderr] => factorial(4) = 24
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:275]
[INFO] [stderr] => n <= 1 = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:275]
[INFO] [stderr] => n <= 1 = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:275]
[INFO] [stderr] => n <= 1 = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:275]
[INFO] [stderr] => n <= 1 = true
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:276]
[INFO] [stderr] => 1 = 1
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:278]
[INFO] [stderr] => n * factorial(n - 1) = 2
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:278]
[INFO] [stderr] => n * factorial(n - 1) = 6
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:278]
[INFO] [stderr] => n * factorial(n - 1) = 24
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:282]
[INFO] [stderr] => factorial(4) = 24
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:299]
[INFO] [stderr] => n = 4, n <= 1 = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:299]
[INFO] [stderr] => n = 3, n <= 1 = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:299]
[INFO] [stderr] => n = 2, n <= 1 = false
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:299]
[INFO] [stderr] => n = 1, n <= 1 = true
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:300]
[INFO] [stderr] => n = 1, 1 = 1
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:302]
[INFO] [stderr] => n = 2, n * factorial(n - 1) = 2
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:302]
[INFO] [stderr] => n = 3, n * factorial(n - 1) = 6
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:302]
[INFO] [stderr] => n = 4, n * factorial(n - 1) = 24
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:306]
[INFO] [stderr] => factorial(4) = 24
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:270]
[INFO] [stderr] => &a = [<unknown> of type &dbg::tests::not_debug::X is !Debug]
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:261]
[INFO] [stderr] => "width" = 1, "height" = 2, "area" = 2
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:264]
[INFO] [stderr] => "first point" = Point {
[INFO] [stderr]     x: 4,
[INFO] [stderr]     y: 5,
[INFO] [stderr] }, "same point" = Point {
[INFO] [stderr]     x: 4,
[INFO] [stderr]     y: 5,
[INFO] [stderr] }
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:241]
[INFO] [stderr] => 1 + 2 = 3
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:242]
[INFO] [stderr] => x + 1 = 4
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:242]
[INFO] [stderr] => 3 = 3
[INFO] [stderr] 
[INFO] [stderr] [DEBUGGING, src/lib.rs:243]
[INFO] [stderr] => y = 7
[INFO] [stderr] 
[INFO] [stderr]    Doc-tests dbg
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:7:51
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![cfg_attr(use_nightly, feature(core_intrinsics, specialization))]
[INFO] [stderr]   |                                                   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[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" "da83c7c77bdeac0375ae65c1b208d432cd96d68d3c97ada2c580e8e94c77c622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da83c7c77bdeac0375ae65c1b208d432cd96d68d3c97ada2c580e8e94c77c622", kill_on_drop: false }`
[INFO] [stdout] da83c7c77bdeac0375ae65c1b208d432cd96d68d3c97ada2c580e8e94c77c622