[INFO] cloning repository https://github.com/itskihaga/20211222-rust-mob
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itskihaga/20211222-rust-mob" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitskihaga%2F20211222-rust-mob", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitskihaga%2F20211222-rust-mob'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85ff72ac96738c9b6b0b52df068803e03940b2b0
[INFO] testing itskihaga/20211222-rust-mob against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitskihaga%2F20211222-rust-mob" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/itskihaga/20211222-rust-mob on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/itskihaga/20211222-rust-mob
[INFO] finished tweaking git repo https://github.com/itskihaga/20211222-rust-mob
[INFO] tweaked toml for git repo https://github.com/itskihaga/20211222-rust-mob written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/itskihaga/20211222-rust-mob already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c3e308f1563273c8a451c8d9d719435e820f6b25f829930f3f6ade336d68da8
[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" "8c3e308f1563273c8a451c8d9d719435e820f6b25f829930f3f6ade336d68da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c3e308f1563273c8a451c8d9d719435e820f6b25f829930f3f6ade336d68da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c3e308f1563273c8a451c8d9d719435e820f6b25f829930f3f6ade336d68da8", kill_on_drop: false }`
[INFO] [stdout] 8c3e308f1563273c8a451c8d9d719435e820f6b25f829930f3f6ade336d68da8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d79399d3bfdfd6b0ee1346e7fa330e13714da3dbc633705fea568460997fd353
[INFO] running `Command { std: "docker" "start" "-a" "d79399d3bfdfd6b0ee1346e7fa330e13714da3dbc633705fea568460997fd353", kill_on_drop: false }`
[INFO] [stderr]    Compiling mob20211222 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ffi::OsString`, `io::Error`
[INFO] [stdout]  --> src/main.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{read_dir, DirEntry}, io::Error, ffi::OsString};
[INFO] [stdout]   |                                     ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     } else if let Err(e) = entries {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `output`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn output(str: String) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "d79399d3bfdfd6b0ee1346e7fa330e13714da3dbc633705fea568460997fd353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d79399d3bfdfd6b0ee1346e7fa330e13714da3dbc633705fea568460997fd353", kill_on_drop: false }`
[INFO] [stdout] d79399d3bfdfd6b0ee1346e7fa330e13714da3dbc633705fea568460997fd353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 845909e491e6cd0fd29b54f31d96d5c5ac162dbb919fa89f3a964a682b2116a7
[INFO] running `Command { std: "docker" "start" "-a" "845909e491e6cd0fd29b54f31d96d5c5ac162dbb919fa89f3a964a682b2116a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling mob20211222 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ffi::OsString`, `io::Error`
[INFO] [stdout]  --> src/main.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::{read_dir, DirEntry}, io::Error, ffi::OsString};
[INFO] [stdout]   |                                     ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:37:23
[INFO] [stdout]    |
[INFO] [stdout] 37 |     } else if let Err(e) = entries {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `output`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn output(str: String) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "845909e491e6cd0fd29b54f31d96d5c5ac162dbb919fa89f3a964a682b2116a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "845909e491e6cd0fd29b54f31d96d5c5ac162dbb919fa89f3a964a682b2116a7", kill_on_drop: false }`
[INFO] [stdout] 845909e491e6cd0fd29b54f31d96d5c5ac162dbb919fa89f3a964a682b2116a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a9d8f2936e71a40f8aaaaf3d4674cdb8063413e761f2a991b0b9d1be813fa983
[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" "a9d8f2936e71a40f8aaaaf3d4674cdb8063413e761f2a991b0b9d1be813fa983", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `ffi::OsString`, `io::Error`
[INFO] [stderr]  --> src/main.rs:1:37
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fs::{read_dir, DirEntry}, io::Error, ffi::OsString};
[INFO] [stderr]   |                                     ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:37:23
[INFO] [stderr]    |
[INFO] [stderr] 37 |     } else if let Err(e) = entries {
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `output`
[INFO] [stderr]   --> src/main.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn output(str: String) {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mob20211222` (bin "mob20211222" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mob20211222-d6a790f3dc2ff56f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9d8f2936e71a40f8aaaaf3d4674cdb8063413e761f2a991b0b9d1be813fa983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9d8f2936e71a40f8aaaaf3d4674cdb8063413e761f2a991b0b9d1be813fa983", kill_on_drop: false }`
[INFO] [stdout] a9d8f2936e71a40f8aaaaf3d4674cdb8063413e761f2a991b0b9d1be813fa983