[INFO] cloning repository https://github.com/malcolmxsc/neurovisor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/malcolmxsc/neurovisor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalcolmxsc%2Fneurovisor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalcolmxsc%2Fneurovisor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bddb1d72b5c4cd081b597c23db3bad4e0642b310
[INFO] checking malcolmxsc/neurovisor against master#ff647322379c48947c196639599067665ff9eb88 for pr-151539-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalcolmxsc%2Fneurovisor" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/malcolmxsc/neurovisor
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/malcolmxsc/neurovisor
[INFO] tweaked toml for git repo https://github.com/malcolmxsc/neurovisor written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/malcolmxsc/neurovisor on toolchain ff647322379c48947c196639599067665ff9eb88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/malcolmxsc/neurovisor 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" "+ff647322379c48947c196639599067665ff9eb88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 88050aa5a80316e83e53ce45262203e411d783739217066fa04ed0398c3e95d6
[INFO] running `Command { std: "docker" "start" "88050aa5a80316e83e53ce45262203e411d783739217066fa04ed0398c3e95d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "88050aa5a80316e83e53ce45262203e411d783739217066fa04ed0398c3e95d6" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "88050aa5a80316e83e53ce45262203e411d783739217066fa04ed0398c3e95d6" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> src/ebpf/metrics.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CounterVec`, `Gauge`, `HistogramVec`, `register_counter_vec`, `register_gauge`, and `register_histogram_vec`
[INFO] [stdout]  --> src/ebpf/metrics.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use prometheus::{register_counter_vec, register_gauge, register_histogram_vec, CounterVec, Gauge, HistogramVec};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> src/ebpf/metrics.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CounterVec`, `Gauge`, `HistogramVec`, `register_counter_vec`, `register_gauge`, and `register_histogram_vec`
[INFO] [stdout]  --> src/ebpf/metrics.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use prometheus::{register_counter_vec, register_gauge, register_histogram_vec, CounterVec, Gauge, HistogramVec};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/vm/manager.rs:145:67
[INFO] [stdout]     |
[INFO] [stdout] 145 |             } else if let Err(e) = cgroup_mgr.add_process(&vm_id, firecracker_pid) {
[INFO] [stdout]     |                                               -----------         ^^^^^^^^^^^^^^^ expected `u32`, found `Option<u32>`
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `u32`
[INFO] [stdout]                found enum `std::option::Option<u32>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> src/cgroups/manager.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn add_process(&self, vm_id: &str, pid: u32) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^                     --------
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `std::option::Option<u32>` value, panicking if the value is an `Option::None`
[INFO] [stdout]     |
[INFO] [stdout] 145 |             } else if let Err(e) = cgroup_mgr.add_process(&vm_id, firecracker_pid.expect("REASON")) {
[INFO] [stdout]     |                                                                                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/vm/manager.rs:145:67
[INFO] [stdout]     |
[INFO] [stdout] 145 |             } else if let Err(e) = cgroup_mgr.add_process(&vm_id, firecracker_pid) {
[INFO] [stdout]     |                                               -----------         ^^^^^^^^^^^^^^^ expected `u32`, found `Option<u32>`
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `u32`
[INFO] [stdout]                found enum `std::option::Option<u32>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> src/cgroups/manager.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn add_process(&self, vm_id: &str, pid: u32) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^                     --------
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `std::option::Option<u32>` value, panicking if the value is an `Option::None`
[INFO] [stdout]     |
[INFO] [stdout] 145 |             } else if let Err(e) = cgroup_mgr.add_process(&vm_id, firecracker_pid.expect("REASON")) {
[INFO] [stdout]     |                                                                                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `std::option::Option<u32>` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/vm/manager.rs:146:72
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 eprintln!("[WARN] Failed to add PID {} to cgroup: {}", firecracker_pid, e);
[INFO] [stdout]     |                                                     --                 ^^^^^^^^^^^^^^^ `std::option::Option<u32>` cannot be formatted with the default formatter
[INFO] [stdout]     |                                                     |
[INFO] [stdout]     |                                                     required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<u32>`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `std::option::Option<u32>` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/vm/manager.rs:146:72
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 eprintln!("[WARN] Failed to add PID {} to cgroup: {}", firecracker_pid, e);
[INFO] [stdout]     |                                                     --                 ^^^^^^^^^^^^^^^ `std::option::Option<u32>` cannot be formatted with the default formatter
[INFO] [stdout]     |                                                     |
[INFO] [stdout]     |                                                     required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<u32>`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `std::option::Option<u32>` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/vm/manager.rs:148:78
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 println!("[INFO]    Cgroup created for {} (PID: {})", vm_id, firecracker_pid);
[INFO] [stdout]     |                                                                 --           ^^^^^^^^^^^^^^^ `std::option::Option<u32>` cannot be formatted with the default formatter
[INFO] [stdout]     |                                                                 |
[INFO] [stdout]     |                                                                 required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<u32>`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `std::option::Option<u32>` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> src/vm/manager.rs:148:78
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 println!("[INFO]    Cgroup created for {} (PID: {})", vm_id, firecracker_pid);
[INFO] [stdout]     |                                                                 --           ^^^^^^^^^^^^^^^ `std::option::Option<u32>` cannot be formatted with the default formatter
[INFO] [stdout]     |                                                                 |
[INFO] [stdout]     |                                                                 required by this formatting parameter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `std::option::Option<u32>`
[INFO] [stdout]     = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/vm/manager.rs:154:60
[INFO] [stdout]     |
[INFO] [stdout] 154 |             if let Err(e) = ebpf_mgr.start_tracing(&vm_id, firecracker_pid).await {
[INFO] [stdout]     |                                      -------------         ^^^^^^^^^^^^^^^ expected `u32`, found `Option<u32>`
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `u32`
[INFO] [stdout]                found enum `std::option::Option<u32>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> src/ebpf/mod.rs:98:18
[INFO] [stdout]     |
[INFO] [stdout]  98 |     pub async fn start_tracing(&self, _vm_id: &str, _pid: u32) -> Result<(), EbpfError> {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^                      ---------
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `std::option::Option<u32>` value, panicking if the value is an `Option::None`
[INFO] [stdout]     |
[INFO] [stdout] 154 |             if let Err(e) = ebpf_mgr.start_tracing(&vm_id, firecracker_pid.expect("REASON")).await {
[INFO] [stdout]     |                                                                           +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/vm/manager.rs:154:60
[INFO] [stdout]     |
[INFO] [stdout] 154 |             if let Err(e) = ebpf_mgr.start_tracing(&vm_id, firecracker_pid).await {
[INFO] [stdout]     |                                      -------------         ^^^^^^^^^^^^^^^ expected `u32`, found `Option<u32>`
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `u32`
[INFO] [stdout]                found enum `std::option::Option<u32>`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> src/ebpf/mod.rs:98:18
[INFO] [stdout]     |
[INFO] [stdout]  98 |     pub async fn start_tracing(&self, _vm_id: &str, _pid: u32) -> Result<(), EbpfError> {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^                      ---------
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `std::option::Option<u32>` value, panicking if the value is an `Option::None`
[INFO] [stdout]     |
[INFO] [stdout] 154 |             if let Err(e) = ebpf_mgr.start_tracing(&vm_id, firecracker_pid.expect("REASON")).await {
[INFO] [stdout]     |                                                                           +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `neurovisor` (lib test) due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `neurovisor` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "88050aa5a80316e83e53ce45262203e411d783739217066fa04ed0398c3e95d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88050aa5a80316e83e53ce45262203e411d783739217066fa04ed0398c3e95d6", kill_on_drop: false }`
[INFO] [stdout] 88050aa5a80316e83e53ce45262203e411d783739217066fa04ed0398c3e95d6
