[INFO] cloning repository https://github.com/Johan-Liebert1/crust_of_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Johan-Liebert1/crust_of_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Liebert1%2Fcrust_of_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Liebert1%2Fcrust_of_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 954ea8fa2dd37a71868492fe1428e1308ba33bf2
[INFO] testing Johan-Liebert1/crust_of_rust against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Liebert1%2Fcrust_of_rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Johan-Liebert1/crust_of_rust on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Johan-Liebert1/crust_of_rust
[INFO] finished tweaking git repo https://github.com/Johan-Liebert1/crust_of_rust
[INFO] tweaked toml for git repo https://github.com/Johan-Liebert1/crust_of_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Johan-Liebert1/crust_of_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing Johan-Liebert1/crust_of_rust against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Liebert1%2Fcrust_of_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Johan-Liebert1/crust_of_rust on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Johan-Liebert1/crust_of_rust
[INFO] finished tweaking git repo https://github.com/Johan-Liebert1/crust_of_rust
[INFO] tweaked toml for git repo https://github.com/Johan-Liebert1/crust_of_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Johan-Liebert1/crust_of_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing Johan-Liebert1/crust_of_rust against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Liebert1%2Fcrust_of_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Johan-Liebert1/crust_of_rust on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Johan-Liebert1/crust_of_rust
[INFO] finished tweaking git repo https://github.com/Johan-Liebert1/crust_of_rust
[INFO] tweaked toml for git repo https://github.com/Johan-Liebert1/crust_of_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Johan-Liebert1/crust_of_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34ee11094a542ca6fb7916ad8de999a4a994580630bcd81d59897463d89580b8
[INFO] running `Command { std: "docker" "start" "-a" "34ee11094a542ca6fb7916ad8de999a4a994580630bcd81d59897463d89580b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34ee11094a542ca6fb7916ad8de999a4a994580630bcd81d59897463d89580b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34ee11094a542ca6fb7916ad8de999a4a994580630bcd81d59897463d89580b8", kill_on_drop: false }`
[INFO] [stdout] 34ee11094a542ca6fb7916ad8de999a4a994580630bcd81d59897463d89580b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0713e2d6110da598af0a6cf4d3c6bd4aa5333db4bd74ce2cc9e2782d4f6c9eb9
[INFO] running `Command { std: "docker" "start" "-a" "0713e2d6110da598af0a6cf4d3c6bd4aa5333db4bd74ce2cc9e2782d4f6c9eb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crust_of_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/s4_smart_pointers_interior_mutability/rc.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 drop(inner);
[INFO] [stdout]     |                 ^^^^^-----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&RcInner<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/s7_drop_check/drop_check.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |         unsafe { Box::from_raw(self.p.as_mut()) };
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         unsafe { let _ = Box::from_raw(self.p.as_mut()); };
[INFO] [stdout]    |                  +++++++                               +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "0713e2d6110da598af0a6cf4d3c6bd4aa5333db4bd74ce2cc9e2782d4f6c9eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0713e2d6110da598af0a6cf4d3c6bd4aa5333db4bd74ce2cc9e2782d4f6c9eb9", kill_on_drop: false }`
[INFO] [stdout] 0713e2d6110da598af0a6cf4d3c6bd4aa5333db4bd74ce2cc9e2782d4f6c9eb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc0043eb5e6583d825154f3a83a6d74d3b5a92a3ed868ea0d2ceacc538c019ab
[INFO] running `Command { std: "docker" "start" "-a" "fc0043eb5e6583d825154f3a83a6d74d3b5a92a3ed868ea0d2ceacc538c019ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling crust_of_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/s4_smart_pointers_interior_mutability/rc.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 drop(inner);
[INFO] [stdout]     |                 ^^^^^-----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `&RcInner<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]   --> src/s7_drop_check/drop_check.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 |         unsafe { Box::from_raw(self.p.as_mut()) };
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         unsafe { let _ = Box::from_raw(self.p.as_mut()); };
[INFO] [stdout]    |                  +++++++                               +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "fc0043eb5e6583d825154f3a83a6d74d3b5a92a3ed868ea0d2ceacc538c019ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc0043eb5e6583d825154f3a83a6d74d3b5a92a3ed868ea0d2ceacc538c019ab", kill_on_drop: false }`
[INFO] [stdout] fc0043eb5e6583d825154f3a83a6d74d3b5a92a3ed868ea0d2ceacc538c019ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01b0b8d25a5f3595b2189bc46909744345fafaa8cc961abe1ff02c7c146395d5
[INFO] running `Command { std: "docker" "start" "-a" "01b0b8d25a5f3595b2189bc46909744345fafaa8cc961abe1ff02c7c146395d5", kill_on_drop: false }`
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/s4_smart_pointers_interior_mutability/rc.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 drop(inner);
[INFO] [stderr]     |                 ^^^^^-----^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      argument has type `&RcInner<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stderr]   --> src/s7_drop_check/drop_check.rs:16:18
[INFO] [stderr]    |
[INFO] [stderr] 16 |         unsafe { Box::from_raw(self.p.as_mut()) };
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 16 |         unsafe { let _ = Box::from_raw(self.p.as_mut()); };
[INFO] [stderr]    |                  +++++++                               +
[INFO] [stderr] 
[INFO] [stderr] warning: `crust_of_rust` (bin "crust_of_rust" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/crust_of_rust-01e75501ec955555)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test s6_sorting_algos::bubble::bubble_sort_works ... ok
[INFO] [stdout] test s6_sorting_algos::insertion::insertion_sort_works ... ok
[INFO] [stdout] test s6_sorting_algos::orst::tests::std_works ... ok
[INFO] [stdout] test s6_sorting_algos::quick::quick_sort_works ... ok
[INFO] [stdout] test s8_atomics_and_memory::atomics_and_memory::tests::too_relaxed ... ok
[INFO] [stdout] test s8_atomics_and_memory::atomics_and_memory::tests::sync_test ... ok
[INFO] [stdout] test s8_atomics_and_memory::atomics_and_memory::tests::test_bad_mutex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01b0b8d25a5f3595b2189bc46909744345fafaa8cc961abe1ff02c7c146395d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b0b8d25a5f3595b2189bc46909744345fafaa8cc961abe1ff02c7c146395d5", kill_on_drop: false }`
[INFO] [stdout] 01b0b8d25a5f3595b2189bc46909744345fafaa8cc961abe1ff02c7c146395d5