Dec 12 20:42:20.034 INFO testing xurtis/isolate against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 20:42:20.034 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 20:42:20.653 INFO [stdout] 7816b3d098354947153a72b6ed28aa78dd8609c11813e6d9613698c99838a7f5
Dec 12 20:42:20.655 INFO running `"docker" "start" "-a" "7816b3d098354947153a72b6ed28aa78dd8609c11813e6d9613698c99838a7f5"`
Dec 12 20:42:22.123 INFO [stderr] usermod: no changes
Dec 12 20:42:22.252 INFO [stderr]    Compiling cc v1.0.17
Dec 12 20:42:22.252 INFO [stderr]    Compiling serde v1.0.64
Dec 12 20:42:22.259 INFO [stderr]    Compiling proc-macro2 v0.4.4
Dec 12 20:42:22.259 INFO [stderr]    Compiling errno v0.2.3
Dec 12 20:42:22.264 INFO [stderr]    Compiling nix v0.9.0
Dec 12 20:42:22.264 INFO [stderr]    Compiling thread_local v0.3.5
Dec 12 20:42:24.711 INFO [stderr]    Compiling regex v0.2.11
Dec 12 20:42:31.539 INFO [stderr]    Compiling quote v0.6.3
Dec 12 20:42:33.161 INFO [stderr]    Compiling syn v0.14.1
Dec 12 20:42:33.512 INFO [stderr]    Compiling backtrace-sys v0.1.23
Dec 12 20:42:51.469 INFO [stderr]    Compiling backtrace v0.3.8
Dec 12 20:42:54.145 INFO [stderr]    Compiling unshare v0.2.0
Dec 12 20:42:55.697 INFO [stderr]    Compiling error-chain v0.11.0
Dec 12 20:43:05.215 INFO [stderr]    Compiling serde_derive v1.0.64
Dec 12 20:43:13.625 INFO [stderr]    Compiling toml v0.4.6
Dec 12 20:43:27.928 INFO [stderr]    Compiling docopt v0.8.3
Dec 12 20:43:34.179 INFO [stderr]    Compiling isolate v0.1.2 (/source)
Dec 12 20:43:34.514 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:34.514 INFO [stderr]  --> src/namespace/control_group.rs:6:5
Dec 12 20:43:34.514 INFO [stderr]   |
Dec 12 20:43:34.514 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:34.514 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:34.514 INFO [stderr]   |
Dec 12 20:43:34.514 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 20:43:34.514 INFO [stderr] 
Dec 12 20:43:34.514 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:34.514 INFO [stderr]  --> src/namespace/control_group.rs:7:5
Dec 12 20:43:34.514 INFO [stderr]   |
Dec 12 20:43:34.514 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:34.514 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:34.514 INFO [stderr] 
Dec 12 20:43:34.514 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:34.514 INFO [stderr]  --> src/namespace/ipc.rs:6:5
Dec 12 20:43:34.514 INFO [stderr]   |
Dec 12 20:43:34.514 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:34.514 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:34.514 INFO [stderr] 
Dec 12 20:43:34.514 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:34.514 INFO [stderr]  --> src/namespace/ipc.rs:7:5
Dec 12 20:43:34.514 INFO [stderr]   |
Dec 12 20:43:34.514 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:34.514 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:34.514 INFO [stderr] 
Dec 12 20:43:34.514 INFO [stderr] warning: unused import: `PathBuf`
Dec 12 20:43:34.514 INFO [stderr]  --> src/namespace/mount.rs:3:23
Dec 12 20:43:34.514 INFO [stderr]   |
Dec 12 20:43:34.514 INFO [stderr] 3 | use std::path::{Path, PathBuf};
Dec 12 20:43:34.514 INFO [stderr]   |                       ^^^^^^^
Dec 12 20:43:34.515 INFO [stderr] 
Dec 12 20:43:34.515 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:34.515 INFO [stderr]  --> src/namespace/network.rs:6:5
Dec 12 20:43:34.515 INFO [stderr]   |
Dec 12 20:43:34.515 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:34.515 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:34.515 INFO [stderr] 
Dec 12 20:43:34.515 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:34.515 INFO [stderr]  --> src/namespace/network.rs:7:5
Dec 12 20:43:34.515 INFO [stderr]   |
Dec 12 20:43:34.515 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:34.515 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:34.515 INFO [stderr] 
Dec 12 20:43:34.515 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:34.515 INFO [stderr]  --> src/namespace/pid.rs:6:5
Dec 12 20:43:34.515 INFO [stderr]   |
Dec 12 20:43:34.515 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:34.515 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:34.515 INFO [stderr] 
Dec 12 20:43:34.515 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:34.515 INFO [stderr]  --> src/namespace/pid.rs:7:5
Dec 12 20:43:34.515 INFO [stderr]   |
Dec 12 20:43:34.515 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:34.515 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:34.515 INFO [stderr] 
Dec 12 20:43:34.515 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:34.515 INFO [stderr]  --> src/namespace/uts.rs:6:5
Dec 12 20:43:34.515 INFO [stderr]   |
Dec 12 20:43:34.515 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:34.515 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:34.515 INFO [stderr] 
Dec 12 20:43:34.515 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:34.515 INFO [stderr]  --> src/namespace/uts.rs:7:5
Dec 12 20:43:34.515 INFO [stderr]   |
Dec 12 20:43:34.515 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:34.515 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:34.515 INFO [stderr] 
Dec 12 20:43:34.788 INFO [stderr] warning: variant is never constructed: `Allow`
Dec 12 20:43:34.788 INFO [stderr]    --> src/namespace/user.rs:114:2
Dec 12 20:43:34.788 INFO [stderr]     |
Dec 12 20:43:34.788 INFO [stderr] 114 |     Allow,
Dec 12 20:43:34.788 INFO [stderr]     |     ^^^^^
Dec 12 20:43:34.788 INFO [stderr]     |
Dec 12 20:43:34.788 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 20:43:34.788 INFO [stderr] 
Dec 12 20:43:34.805 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.805 INFO [stderr]   --> src/context.rs:35:1
Dec 12 20:43:34.805 INFO [stderr]    |
Dec 12 20:43:34.805 INFO [stderr] 35 | / pub struct Context {
Dec 12 20:43:34.805 INFO [stderr] 36 | |     namespaces: Vec<Box<Namespace>>,
Dec 12 20:43:34.805 INFO [stderr] 37 | | }
Dec 12 20:43:34.805 INFO [stderr]    | |_^
Dec 12 20:43:34.805 INFO [stderr]    |
Dec 12 20:43:34.805 INFO [stderr] note: lint level defined here
Dec 12 20:43:34.805 INFO [stderr]   --> src/lib.rs:5:9
Dec 12 20:43:34.805 INFO [stderr]    |
Dec 12 20:43:34.805 INFO [stderr] 5  | #![warn(missing_debug_implementations)]
Dec 12 20:43:34.805 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.805 INFO [stderr] 
Dec 12 20:43:34.806 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.807 INFO [stderr]    --> src/context.rs:231:1
Dec 12 20:43:34.807 INFO [stderr]     |
Dec 12 20:43:34.808 INFO [stderr] 231 | pub struct Child(pid_t);
Dec 12 20:43:34.808 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.808 INFO [stderr] 
Dec 12 20:43:34.808 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.808 INFO [stderr]   --> src/namespace/control_group.rs:17:1
Dec 12 20:43:34.808 INFO [stderr]    |
Dec 12 20:43:34.808 INFO [stderr] 17 | pub struct ControlGroup {}
Dec 12 20:43:34.808 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.808 INFO [stderr] 
Dec 12 20:43:34.808 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.808 INFO [stderr]   --> src/namespace/ipc.rs:18:1
Dec 12 20:43:34.808 INFO [stderr]    |
Dec 12 20:43:34.808 INFO [stderr] 18 | pub struct Ipc {}
Dec 12 20:43:34.808 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.808 INFO [stderr] 
Dec 12 20:43:34.808 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.808 INFO [stderr]   --> src/namespace/network.rs:22:1
Dec 12 20:43:34.809 INFO [stderr]    |
Dec 12 20:43:34.809 INFO [stderr] 22 | pub struct Network {}
Dec 12 20:43:34.809 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.809 INFO [stderr] 
Dec 12 20:43:34.809 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.809 INFO [stderr]   --> src/namespace/pid.rs:16:1
Dec 12 20:43:34.809 INFO [stderr]    |
Dec 12 20:43:34.809 INFO [stderr] 16 | pub struct Pid {}
Dec 12 20:43:34.809 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.809 INFO [stderr] 
Dec 12 20:43:34.809 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.809 INFO [stderr]   --> src/namespace/user.rs:31:1
Dec 12 20:43:34.809 INFO [stderr]    |
Dec 12 20:43:34.809 INFO [stderr] 31 | / pub struct User {
Dec 12 20:43:34.809 INFO [stderr] 32 | |     map_root_user: bool,
Dec 12 20:43:34.809 INFO [stderr] 33 | |     map_root_group: bool,
Dec 12 20:43:34.809 INFO [stderr] 34 | | }
Dec 12 20:43:34.809 INFO [stderr]    | |_^
Dec 12 20:43:34.809 INFO [stderr] 
Dec 12 20:43:34.809 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:34.809 INFO [stderr]   --> src/namespace/uts.rs:15:1
Dec 12 20:43:34.809 INFO [stderr]    |
Dec 12 20:43:34.809 INFO [stderr] 15 | pub struct Uts {}
Dec 12 20:43:34.809 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.809 INFO [stderr] 
Dec 12 20:43:34.810 INFO [stderr] warning: missing documentation for a trait method
Dec 12 20:43:34.810 INFO [stderr]   --> src/namespace/mod.rs:83:2
Dec 12 20:43:34.810 INFO [stderr]    |
Dec 12 20:43:34.810 INFO [stderr] 83 |     fn box_clone(&self) -> Box<Namespace>;
Dec 12 20:43:34.810 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:34.810 INFO [stderr]    |
Dec 12 20:43:34.810 INFO [stderr] note: lint level defined here
Dec 12 20:43:34.810 INFO [stderr]   --> src/lib.rs:3:9
Dec 12 20:43:34.810 INFO [stderr]    |
Dec 12 20:43:34.810 INFO [stderr] 3  | #![warn(missing_docs)]
Dec 12 20:43:34.810 INFO [stderr]    |         ^^^^^^^^^^^^
Dec 12 20:43:34.810 INFO [stderr] 
Dec 12 20:43:36.187 INFO [stderr] warning: field is never used: `config`
Dec 12 20:43:36.187 INFO [stderr]    --> src/main.rs:144:5
Dec 12 20:43:36.187 INFO [stderr]     |
Dec 12 20:43:36.187 INFO [stderr] 144 |     config: Configuration,
Dec 12 20:43:36.187 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:36.187 INFO [stderr]     |
Dec 12 20:43:36.187 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 20:43:36.187 INFO [stderr] 
Dec 12 20:43:38.763 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
Dec 12 20:43:38.772 INFO [stderr] su: No module specific data is present
Dec 12 20:43:39.844 INFO running `"docker" "inspect" "7816b3d098354947153a72b6ed28aa78dd8609c11813e6d9613698c99838a7f5"`
Dec 12 20:43:40.155 INFO running `"docker" "rm" "-f" "7816b3d098354947153a72b6ed28aa78dd8609c11813e6d9613698c99838a7f5"`
Dec 12 20:43:40.456 INFO [stdout] 7816b3d098354947153a72b6ed28aa78dd8609c11813e6d9613698c99838a7f5
Dec 12 20:43:40.457 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 20:43:40.960 INFO [stdout] f52725365c5026a007eb37d46979ad69f2af4d744a2f85eaac22702b03d036e7
Dec 12 20:43:40.963 INFO running `"docker" "start" "-a" "f52725365c5026a007eb37d46979ad69f2af4d744a2f85eaac22702b03d036e7"`
Dec 12 20:43:42.699 INFO [stderr] usermod: no changes
Dec 12 20:43:42.852 INFO [stderr]    Compiling isolate v0.1.2 (/source)
Dec 12 20:43:43.297 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:43.298 INFO [stderr]  --> src/namespace/control_group.rs:6:5
Dec 12 20:43:43.298 INFO [stderr]   |
Dec 12 20:43:43.298 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:43.298 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:43.299 INFO [stderr]   |
Dec 12 20:43:43.299 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 20:43:43.299 INFO [stderr] 
Dec 12 20:43:43.299 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:43.299 INFO [stderr]  --> src/namespace/control_group.rs:7:5
Dec 12 20:43:43.299 INFO [stderr]   |
Dec 12 20:43:43.300 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:43.300 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:43.300 INFO [stderr] 
Dec 12 20:43:43.300 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:43.300 INFO [stderr]  --> src/namespace/ipc.rs:6:5
Dec 12 20:43:43.301 INFO [stderr]   |
Dec 12 20:43:43.301 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:43.301 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:43.301 INFO [stderr] 
Dec 12 20:43:43.301 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:43.301 INFO [stderr]  --> src/namespace/ipc.rs:7:5
Dec 12 20:43:43.301 INFO [stderr]   |
Dec 12 20:43:43.301 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:43.301 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:43.302 INFO [stderr] 
Dec 12 20:43:43.302 INFO [stderr] warning: unused import: `PathBuf`
Dec 12 20:43:43.302 INFO [stderr]  --> src/namespace/mount.rs:3:23
Dec 12 20:43:43.302 INFO [stderr]   |
Dec 12 20:43:43.302 INFO [stderr] 3 | use std::path::{Path, PathBuf};
Dec 12 20:43:43.302 INFO [stderr]   |                       ^^^^^^^
Dec 12 20:43:43.311 INFO [stderr] 
Dec 12 20:43:43.311 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:43.311 INFO [stderr]  --> src/namespace/network.rs:6:5
Dec 12 20:43:43.311 INFO [stderr]   |
Dec 12 20:43:43.311 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:43.311 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:43.311 INFO [stderr] 
Dec 12 20:43:43.311 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:43.311 INFO [stderr]  --> src/namespace/network.rs:7:5
Dec 12 20:43:43.311 INFO [stderr]   |
Dec 12 20:43:43.311 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:43.311 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:43.311 INFO [stderr] 
Dec 12 20:43:43.311 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:43.311 INFO [stderr]  --> src/namespace/pid.rs:6:5
Dec 12 20:43:43.311 INFO [stderr]   |
Dec 12 20:43:43.311 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:43.311 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:43.311 INFO [stderr] 
Dec 12 20:43:43.311 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:43.311 INFO [stderr]  --> src/namespace/pid.rs:7:5
Dec 12 20:43:43.311 INFO [stderr]   |
Dec 12 20:43:43.311 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:43.311 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:43.311 INFO [stderr] 
Dec 12 20:43:43.311 INFO [stderr] warning: unused import: `::error::*`
Dec 12 20:43:43.311 INFO [stderr]  --> src/namespace/uts.rs:6:5
Dec 12 20:43:43.311 INFO [stderr]   |
Dec 12 20:43:43.311 INFO [stderr] 6 | use ::error::*;
Dec 12 20:43:43.311 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 20:43:43.311 INFO [stderr] 
Dec 12 20:43:43.311 INFO [stderr] warning: unused import: `::Child`
Dec 12 20:43:43.311 INFO [stderr]  --> src/namespace/uts.rs:7:5
Dec 12 20:43:43.311 INFO [stderr]   |
Dec 12 20:43:43.311 INFO [stderr] 7 | use ::Child;
Dec 12 20:43:43.311 INFO [stderr]   |     ^^^^^^^
Dec 12 20:43:43.311 INFO [stderr] 
Dec 12 20:43:43.631 INFO [stderr] warning: variant is never constructed: `Allow`
Dec 12 20:43:43.631 INFO [stderr]    --> src/namespace/user.rs:114:2
Dec 12 20:43:43.631 INFO [stderr]     |
Dec 12 20:43:43.631 INFO [stderr] 114 |     Allow,
Dec 12 20:43:43.631 INFO [stderr]     |     ^^^^^
Dec 12 20:43:43.631 INFO [stderr]     |
Dec 12 20:43:43.631 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 20:43:43.631 INFO [stderr] 
Dec 12 20:43:43.690 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.690 INFO [stderr]   --> src/context.rs:35:1
Dec 12 20:43:43.690 INFO [stderr]    |
Dec 12 20:43:43.690 INFO [stderr] 35 | / pub struct Context {
Dec 12 20:43:43.691 INFO [stderr] 36 | |     namespaces: Vec<Box<Namespace>>,
Dec 12 20:43:43.691 INFO [stderr] 37 | | }
Dec 12 20:43:43.691 INFO [stderr]    | |_^
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] note: lint level defined here
Dec 12 20:43:43.691 INFO [stderr]   --> src/lib.rs:5:9
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] 5  | #![warn(missing_debug_implementations)]
Dec 12 20:43:43.691 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:43.691 INFO [stderr] 
Dec 12 20:43:43.691 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.691 INFO [stderr]    --> src/context.rs:231:1
Dec 12 20:43:43.691 INFO [stderr]     |
Dec 12 20:43:43.691 INFO [stderr] 231 | pub struct Child(pid_t);
Dec 12 20:43:43.691 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:43.691 INFO [stderr] 
Dec 12 20:43:43.691 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.691 INFO [stderr]   --> src/namespace/control_group.rs:17:1
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] 17 | pub struct ControlGroup {}
Dec 12 20:43:43.691 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:43.691 INFO [stderr] 
Dec 12 20:43:43.691 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.691 INFO [stderr]   --> src/namespace/ipc.rs:18:1
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] 18 | pub struct Ipc {}
Dec 12 20:43:43.691 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 12 20:43:43.691 INFO [stderr] 
Dec 12 20:43:43.691 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.691 INFO [stderr]   --> src/namespace/network.rs:22:1
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] 22 | pub struct Network {}
Dec 12 20:43:43.691 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:43.691 INFO [stderr] 
Dec 12 20:43:43.691 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.691 INFO [stderr]   --> src/namespace/pid.rs:16:1
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] 16 | pub struct Pid {}
Dec 12 20:43:43.691 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 12 20:43:43.691 INFO [stderr] 
Dec 12 20:43:43.691 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.691 INFO [stderr]   --> src/namespace/user.rs:31:1
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] 31 | / pub struct User {
Dec 12 20:43:43.691 INFO [stderr] 32 | |     map_root_user: bool,
Dec 12 20:43:43.691 INFO [stderr] 33 | |     map_root_group: bool,
Dec 12 20:43:43.691 INFO [stderr] 34 | | }
Dec 12 20:43:43.691 INFO [stderr]    | |_^
Dec 12 20:43:43.691 INFO [stderr] 
Dec 12 20:43:43.691 INFO [stderr] warning: type does not implement `fmt::Debug`; consider adding #[derive(Debug)] or a manual implementation
Dec 12 20:43:43.691 INFO [stderr]   --> src/namespace/uts.rs:15:1
Dec 12 20:43:43.691 INFO [stderr]    |
Dec 12 20:43:43.691 INFO [stderr] 15 | pub struct Uts {}
Dec 12 20:43:43.691 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 12 20:43:43.699 INFO [stderr] 
Dec 12 20:43:44.176 INFO [stderr] warning: field is never used: `config`
Dec 12 20:43:44.176 INFO [stderr]    --> src/main.rs:144:5
Dec 12 20:43:44.176 INFO [stderr]     |
Dec 12 20:43:44.176 INFO [stderr] 144 |     config: Configuration,
Dec 12 20:43:44.176 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Dec 12 20:43:44.176 INFO [stderr]     |
Dec 12 20:43:44.176 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 12 20:43:44.176 INFO [stderr] 
Dec 12 20:43:45.770 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.04s
Dec 12 20:43:45.787 INFO [stderr] su: No module specific data is present
Dec 12 20:43:46.715 INFO running `"docker" "inspect" "f52725365c5026a007eb37d46979ad69f2af4d744a2f85eaac22702b03d036e7"`
Dec 12 20:43:47.025 INFO running `"docker" "rm" "-f" "f52725365c5026a007eb37d46979ad69f2af4d744a2f85eaac22702b03d036e7"`
Dec 12 20:43:47.379 INFO [stdout] f52725365c5026a007eb37d46979ad69f2af4d744a2f85eaac22702b03d036e7
Dec 12 20:43:47.387 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 20:43:47.971 INFO [stdout] e922215e56e7b0449c7c1d766dc466e3de6ea5639e7ad829625dbc77fc83abfb
Dec 12 20:43:47.977 INFO running `"docker" "start" "-a" "e922215e56e7b0449c7c1d766dc466e3de6ea5639e7ad829625dbc77fc83abfb"`
Dec 12 20:43:49.570 INFO [stderr] usermod: no changes
Dec 12 20:43:49.691 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
Dec 12 20:43:49.704 INFO [stderr]      Running /target/debug/deps/isolate-c18491e6e1acadf4
Dec 12 20:43:49.708 INFO [stdout] 
Dec 12 20:43:49.708 INFO [stdout] running 0 tests
Dec 12 20:43:49.708 INFO [stdout] 
Dec 12 20:43:49.708 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 20:43:49.708 INFO [stdout] 
Dec 12 20:43:49.715 INFO [stderr]      Running /target/debug/deps/isolate-4d8d4d5084a9e56d
Dec 12 20:43:49.719 INFO [stdout] 
Dec 12 20:43:49.719 INFO [stdout] running 1 test
Dec 12 20:43:49.721 INFO [stdout] test default_config ... ok
Dec 12 20:43:49.721 INFO [stdout] 
Dec 12 20:43:49.721 INFO [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 20:43:49.721 INFO [stdout] 
Dec 12 20:43:49.722 INFO [stderr] su: No module specific data is present
Dec 12 20:43:50.444 INFO running `"docker" "inspect" "e922215e56e7b0449c7c1d766dc466e3de6ea5639e7ad829625dbc77fc83abfb"`
Dec 12 20:43:50.627 INFO running `"docker" "rm" "-f" "e922215e56e7b0449c7c1d766dc466e3de6ea5639e7ad829625dbc77fc83abfb"`
Dec 12 20:43:50.810 INFO [stdout] e922215e56e7b0449c7c1d766dc466e3de6ea5639e7ad829625dbc77fc83abfb