[INFO] cloning repository https://github.com/nakedtatsuya/crabcan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nakedtatsuya/crabcan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnakedtatsuya%2Fcrabcan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnakedtatsuya%2Fcrabcan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 406b55e76060a493862bdee04eca0f25fea19b43
[INFO] checking nakedtatsuya/crabcan against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnakedtatsuya%2Fcrabcan" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nakedtatsuya/crabcan
[INFO] finished tweaking git repo https://github.com/nakedtatsuya/crabcan
[INFO] tweaked toml for git repo https://github.com/nakedtatsuya/crabcan written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nakedtatsuya/crabcan on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nakedtatsuya/crabcan 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seccomp-sys v0.1.3
[INFO] [stderr]   Downloaded capctl v0.2.2
[INFO] [stderr]   Downloaded syscallz v0.16.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28c8d33ac85f7c29de5bc0bdaaa226bde5832f37fafb1f1155f47c19ca79c292
[INFO] running `Command { std: "docker" "start" "-a" "28c8d33ac85f7c29de5bc0bdaaa226bde5832f37fafb1f1155f47c19ca79c292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28c8d33ac85f7c29de5bc0bdaaa226bde5832f37fafb1f1155f47c19ca79c292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c8d33ac85f7c29de5bc0bdaaa226bde5832f37fafb1f1155f47c19ca79c292", kill_on_drop: false }`
[INFO] [stdout] 28c8d33ac85f7c29de5bc0bdaaa226bde5832f37fafb1f1155f47c19ca79c292
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38bd45f3611ad9587d8033dbea202db495215cf844ded42ab00e023a46dcafe6
[INFO] running `Command { std: "docker" "start" "-a" "38bd45f3611ad9587d8033dbea202db495215cf844ded42ab00e023a46dcafe6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling seccomp-sys v0.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling syscallz v0.16.1
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]     Checking once_cell v1.13.1
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking scan_fmt v0.2.6
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.25.0
[INFO] [stderr]     Checking capctl v0.2.2
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking crabcan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/namespaces.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     if let Err(e) = setresgid(gid, gid, gid) {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/syscalls.rs:34:15
[INFO] [stdout]    |
[INFO] [stdout] 34 |     if let Ok(mut ctx) = Context::init_with_action(Action::Allow) {
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syscalls_refuse_ifcomp`
[INFO] [stdout]   --> src/syscalls.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let syscalls_refuse_ifcomp = [
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syscalls_refuse_ifcomp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/errors.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ContainerError(u8),
[INFO] [stdout]   |     -------------- ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     ContainerError(u8),
[INFO] [stdout] 8 +     ContainerError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/errors.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     NotSupported(u8),
[INFO] [stdout]   |     ------------ ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     NotSupported(u8),
[INFO] [stdout] 9 +     NotSupported(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     SocketError(u8),
[INFO] [stdout]    |     ----------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     SocketError(u8),
[INFO] [stdout] 10 +     SocketError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ChildProcessError(u8),
[INFO] [stdout]    |     ----------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     ChildProcessError(u8),
[INFO] [stdout] 11 +     ChildProcessError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 |     HostnameError(u8),
[INFO] [stdout]    |     ------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     HostnameError(u8),
[INFO] [stdout] 12 +     HostnameError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NamespacesError(u8),
[INFO] [stdout]    |     --------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     NamespacesError(u8),
[INFO] [stdout] 13 +     NamespacesError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     MountsError(u8),
[INFO] [stdout]    |     ----------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     MountsError(u8),
[INFO] [stdout] 14 +     MountsError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     CapabilitiesError(u8),
[INFO] [stdout]    |     ----------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     CapabilitiesError(u8),
[INFO] [stdout] 17 +     CapabilitiesError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 |     SyscallsError(u8),
[INFO] [stdout]    |     ------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     SyscallsError(u8),
[INFO] [stdout] 18 +     SyscallsError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EPERM` is never used
[INFO] [stdout]   --> src/syscalls.rs:47:7
[INFO] [stdout]    |
[INFO] [stdout] 47 | const EPERM: u16 = 1;
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `refuse_syscall` is never used
[INFO] [stdout]   --> src/syscalls.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn refuse_syscall(ctx: &mut Context, sc: &Syscall) -> Result<(), Errcode> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `refuse_if_comp` is never used
[INFO] [stdout]   --> src/syscalls.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn refuse_if_comp(ctx: &mut Context, ind: u32, sc: &Syscall, biteq: u64) -> Result<(), Errcode> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/namespaces.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     if let Err(e) = setresgid(gid, gid, gid) {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/syscalls.rs:34:15
[INFO] [stdout]    |
[INFO] [stdout] 34 |     if let Ok(mut ctx) = Context::init_with_action(Action::Allow) {
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syscalls_refuse_ifcomp`
[INFO] [stdout]   --> src/syscalls.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let syscalls_refuse_ifcomp = [
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syscalls_refuse_ifcomp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/errors.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ContainerError(u8),
[INFO] [stdout]   |     -------------- ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     ContainerError(u8),
[INFO] [stdout] 8 +     ContainerError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/errors.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     NotSupported(u8),
[INFO] [stdout]   |     ------------ ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -     NotSupported(u8),
[INFO] [stdout] 9 +     NotSupported(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     SocketError(u8),
[INFO] [stdout]    |     ----------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -     SocketError(u8),
[INFO] [stdout] 10 +     SocketError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:11:23
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ChildProcessError(u8),
[INFO] [stdout]    |     ----------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     ChildProcessError(u8),
[INFO] [stdout] 11 +     ChildProcessError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 |     HostnameError(u8),
[INFO] [stdout]    |     ------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     HostnameError(u8),
[INFO] [stdout] 12 +     HostnameError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NamespacesError(u8),
[INFO] [stdout]    |     --------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     NamespacesError(u8),
[INFO] [stdout] 13 +     NamespacesError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     MountsError(u8),
[INFO] [stdout]    |     ----------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     MountsError(u8),
[INFO] [stdout] 14 +     MountsError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     CapabilitiesError(u8),
[INFO] [stdout]    |     ----------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     CapabilitiesError(u8),
[INFO] [stdout] 17 +     CapabilitiesError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/errors.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 |     SyscallsError(u8),
[INFO] [stdout]    |     ------------- ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Errcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     SyscallsError(u8),
[INFO] [stdout] 18 +     SyscallsError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EPERM` is never used
[INFO] [stdout]   --> src/syscalls.rs:47:7
[INFO] [stdout]    |
[INFO] [stdout] 47 | const EPERM: u16 = 1;
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `refuse_syscall` is never used
[INFO] [stdout]   --> src/syscalls.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn refuse_syscall(ctx: &mut Context, sc: &Syscall) -> Result<(), Errcode> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `refuse_if_comp` is never used
[INFO] [stdout]   --> src/syscalls.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn refuse_if_comp(ctx: &mut Context, ind: u32, sc: &Syscall, biteq: u64) -> Result<(), Errcode> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.48s
[INFO] running `Command { std: "docker" "inspect" "38bd45f3611ad9587d8033dbea202db495215cf844ded42ab00e023a46dcafe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38bd45f3611ad9587d8033dbea202db495215cf844ded42ab00e023a46dcafe6", kill_on_drop: false }`
[INFO] [stdout] 38bd45f3611ad9587d8033dbea202db495215cf844ded42ab00e023a46dcafe6
