[INFO] cloning repository https://github.com/tony612/rust-by-example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tony612/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftony612%2Frust-by-example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftony612%2Frust-by-example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 12770c03945679fc114a5ef5accc51c6ecc0e8f9 [INFO] testing tony612/rust-by-example against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftony612%2Frust-by-example" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tony612/rust-by-example on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tony612/rust-by-example [INFO] finished tweaking git repo https://github.com/tony612/rust-by-example [INFO] tweaked toml for git repo https://github.com/tony612/rust-by-example written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/tony612/rust-by-example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 041e6ef58e0e6e94bff384175d0550c5775139c6cdef3b41a541ef8041dc493d [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" "041e6ef58e0e6e94bff384175d0550c5775139c6cdef3b41a541ef8041dc493d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "041e6ef58e0e6e94bff384175d0550c5775139c6cdef3b41a541ef8041dc493d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "041e6ef58e0e6e94bff384175d0550c5775139c6cdef3b41a541ef8041dc493d", kill_on_drop: false }` [INFO] [stdout] 041e6ef58e0e6e94bff384175d0550c5775139c6cdef3b41a541ef8041dc493d [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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b8a50b82de404453fa1b5bf49e7da313e6e55ad4b29f91b499c8a41584311854 [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" "b8a50b82de404453fa1b5bf49e7da313e6e55ad4b29f91b499c8a41584311854", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling once_cell v1.7.2 [INFO] [stderr] Compiling pin-project-lite v0.2.6 [INFO] [stderr] Compiling bytes v1.0.1 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling tokio v1.6.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling mio v0.7.11 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling tokio-macros v1.2.0 [INFO] [stderr] Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `longest` [INFO] [stdout] --> src/lifetime/function.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn longest<'a>(s1: &'a String, s2: &'a String) -> &'a String { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pick_first` [INFO] [stdout] --> src/lifetime/function.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn pick_first<'a>(s1: &'a String, _s2: &String) -> &'a String { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `MyStruct` [INFO] [stdout] --> src/lifetime/method.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct MyStruct {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `empty` [INFO] [stdout] --> src/lifetime/method.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | fn empty(&self, _msg: &str) -> &str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `msg` [INFO] [stdout] --> src/lifetime/method.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | fn msg<'a>(&self, msg: &'a str) -> &'a str { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `MyStruct` [INFO] [stdout] --> src/lifetime/struct.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct MyStruct<'a> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `empty` [INFO] [stdout] --> src/lifetime/struct.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | fn empty(&self, _msg: &str) -> &str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `msg` [INFO] [stdout] --> src/lifetime/struct.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | fn msg<'b>(&self, msg: &'b str) -> &'b str { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `hygiene` [INFO] [stdout] --> src/macro/hygiene.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn hygiene() -> usize { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `across_scope` [INFO] [stdout] --> src/macro/hygiene.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn across_scope() -> usize { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `ref_mut` [INFO] [stdout] --> src/pattern_match/ref.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn ref_mut(mut s: Option<&str>) -> Option<&str> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `ref_mut2` [INFO] [stdout] --> src/pattern_match/ref.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn ref_mut2(mut s: Option<&str>) -> Option<&str> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `ref_mut3` [INFO] [stdout] --> src/pattern_match/ref.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn ref_mut3(s: Option<&str>) -> Option<&str> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `and_mut` [INFO] [stdout] --> src/pattern_match/ref.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn and_mut(input: Option<&mut Foo>) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/pointer/cell.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn new(value: T) -> Cell { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/pointer/rc.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | fn new(value: T) -> Rc { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Shared` [INFO] [stdout] --> src/pointer/refcell.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | Shared(usize), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Exclusive` [INFO] [stdout] --> src/pointer/refcell.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | Exclusive, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/pointer/refcell.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | fn new(value: T) -> RefCell { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `borrow` [INFO] [stdout] --> src/pointer/refcell.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | fn borrow(&self) -> Option> [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `borrow_mut` [INFO] [stdout] --> src/pointer/refcell.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | fn borrow_mut(&self) -> Option> [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `send` [INFO] [stdout] --> src/sync/mpsc.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | fn send(&self, v: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Receiver` [INFO] [stdout] --> src/sync/mpsc.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | struct Receiver { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `recv` [INFO] [stdout] --> src/sync/mpsc.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 72 | fn recv(&mut self) -> Option { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `queue` [INFO] [stdout] --> src/sync/mpsc.rs:96:5 [INFO] [stdout] | [INFO] [stdout] 96 | queue: VecDeque, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `channel` [INFO] [stdout] --> src/sync/mpsc.rs:105:4 [INFO] [stdout] | [INFO] [stdout] 105 | fn channel() -> (Sender, Receiver) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `data` [INFO] [stdout] --> src/tokio/actor.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | data: Request, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `sender` [INFO] [stdout] --> src/tokio/actor.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | sender: oneshot::Sender, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `spawn` [INFO] [stdout] --> src/tokio/actor.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn spawn(mut actor: A, mailbox: usize) -> Pid [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `sender` [INFO] [stdout] --> src/tokio/actor.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | sender: mpsc::Sender>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `send` [INFO] [stdout] --> src/tokio/actor.rs:41:18 [INFO] [stdout] | [INFO] [stdout] 41 | pub async fn send(&self, data: Request) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `watch` [INFO] [stdout] --> src/tokio/watch.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | async fn watch() -> Result<()> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 32 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 40.65s [INFO] running `Command { std: "docker" "inspect" "b8a50b82de404453fa1b5bf49e7da313e6e55ad4b29f91b499c8a41584311854", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8a50b82de404453fa1b5bf49e7da313e6e55ad4b29f91b499c8a41584311854", kill_on_drop: false }` [INFO] [stdout] b8a50b82de404453fa1b5bf49e7da313e6e55ad4b29f91b499c8a41584311854 [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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ddd4c3db804d531eee1b3c53ab11c288497b7da38e75e8f868412410181be9d2 [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" "ddd4c3db804d531eee1b3c53ab11c288497b7da38e75e8f868412410181be9d2", kill_on_drop: false }` [INFO] [stderr] Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.44s [INFO] running `Command { std: "docker" "inspect" "ddd4c3db804d531eee1b3c53ab11c288497b7da38e75e8f868412410181be9d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ddd4c3db804d531eee1b3c53ab11c288497b7da38e75e8f868412410181be9d2", kill_on_drop: false }` [INFO] [stdout] ddd4c3db804d531eee1b3c53ab11c288497b7da38e75e8f868412410181be9d2 [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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f5eea7e660f154e8ec7a6a04a895339fb4f134cafa442e62c4d52d99d55a2503 [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" "f5eea7e660f154e8ec7a6a04a895339fb4f134cafa442e62c4d52d99d55a2503", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_by_example-05b978669aa1b55d) [INFO] [stdout] running 31 tests [INFO] [stdout] test lifetime::function::tests::test_invalid ... ok [INFO] [stdout] test lifetime::method::tests::test_other_lifetime ... ok [INFO] [stdout] test pattern_match::r#ref::it_works ... ok [INFO] [stdout] test pattern_match::r#ref::it_works2 ... ok [INFO] [stdout] test lifetime::method::tests::test_self_lifetime ... ok [INFO] [stdout] test lifetime::function::tests::test_valid ... ok [INFO] [stdout] test lifetime::r#struct::tests::test_lifetime ... ok [INFO] [stdout] test pointer::cell::test::works ... ok [INFO] [stdout] test pointer::rc::test::clone ... ok [INFO] [stdout] test lifetime::function::tests::test_partial_mark ... ok [INFO] [stdout] test pointer::refcell::test::borrow ... ok [INFO] [stderr] error: test failed, to rerun pass '--bin rust-by-example' [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/deps/rust_by_example-05b978669aa1b55d` (signal: 11, SIGSEGV: invalid memory reference) [INFO] running `Command { std: "docker" "inspect" "f5eea7e660f154e8ec7a6a04a895339fb4f134cafa442e62c4d52d99d55a2503", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5eea7e660f154e8ec7a6a04a895339fb4f134cafa442e62c4d52d99d55a2503", kill_on_drop: false }` [INFO] [stdout] f5eea7e660f154e8ec7a6a04a895339fb4f134cafa442e62c4d52d99d55a2503