[INFO] updating cached repository https://github.com/SaucySalamander/potato
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fb5bbbb6fe140b56d8d6473a21637e94788e9a20
[INFO] testing SaucySalamander/potato against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaucySalamander%2Fpotato" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SaucySalamander/potato on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SaucySalamander/potato
[INFO] finished tweaking git repo https://github.com/SaucySalamander/potato
[INFO] tweaked toml for git repo https://github.com/SaucySalamander/potato written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/SaucySalamander/potato already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3f406498eba58db52d22ebd0c7188648dfe8c45c7c11c4747bf6fabff70c7546
[INFO] running `"docker" "start" "-a" "3f406498eba58db52d22ebd0c7188648dfe8c45c7c11c4747bf6fabff70c7546"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling instant v0.1.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.23.6
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling simple_logger v1.6.0
[INFO] [stderr]    Compiling wayland-commons v0.23.6
[INFO] [stderr]    Compiling calloop v0.4.4
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling smithay-client-toolkit v0.6.6
[INFO] [stderr]    Compiling winit v0.22.1
[INFO] [stderr]    Compiling potato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `read_file_to_str`
[INFO] [stderr]  --> src/file.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn read_file_to_str(path: &str) -> Result<String> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_file`
[INFO] [stderr]   --> src/file.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn write_file(path: &str, contents: &str) -> Result<bool> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `append_file`
[INFO] [stderr]   --> src/file.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn append_file(path: &str, contents: &str) -> Result<()>{
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.55s
[INFO] running `"docker" "inspect" "3f406498eba58db52d22ebd0c7188648dfe8c45c7c11c4747bf6fabff70c7546"`
[INFO] running `"docker" "rm" "-f" "3f406498eba58db52d22ebd0c7188648dfe8c45c7c11c4747bf6fabff70c7546"`
[INFO] [stdout] 3f406498eba58db52d22ebd0c7188648dfe8c45c7c11c4747bf6fabff70c7546
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 11a29b18b555671b6df0a13f56988ff329377c83109c5560fdfbf20b1f40daa6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "11a29b18b555671b6df0a13f56988ff329377c83109c5560fdfbf20b1f40daa6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling potato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `read_file_to_str`
[INFO] [stderr]  --> src/file.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn read_file_to_str(path: &str) -> Result<String> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_file`
[INFO] [stderr]   --> src/file.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn write_file(path: &str, contents: &str) -> Result<bool> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `append_file`
[INFO] [stderr]   --> src/file.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn append_file(path: &str, contents: &str) -> Result<()>{
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "11a29b18b555671b6df0a13f56988ff329377c83109c5560fdfbf20b1f40daa6"`
[INFO] running `"docker" "rm" "-f" "11a29b18b555671b6df0a13f56988ff329377c83109c5560fdfbf20b1f40daa6"`
[INFO] [stdout] 11a29b18b555671b6df0a13f56988ff329377c83109c5560fdfbf20b1f40daa6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39e6fd491f6f333a2ab0450a5d88b6c01912eb874b1b166d062549947b3545ab
[INFO] running `"docker" "start" "-a" "39e6fd491f6f333a2ab0450a5d88b6c01912eb874b1b166d062549947b3545ab"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: function is never used: `read_file_to_str`
[INFO] [stderr]  --> src/file.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn read_file_to_str(path: &str) -> Result<String> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_file`
[INFO] [stderr]   --> src/file.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn write_file(path: &str, contents: &str) -> Result<bool> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `append_file`
[INFO] [stderr]   --> src/file.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn append_file(path: &str, contents: &str) -> Result<()>{
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/potato-f39490fd706933cd
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "39e6fd491f6f333a2ab0450a5d88b6c01912eb874b1b166d062549947b3545ab"`
[INFO] running `"docker" "rm" "-f" "39e6fd491f6f333a2ab0450a5d88b6c01912eb874b1b166d062549947b3545ab"`
[INFO] [stdout] 39e6fd491f6f333a2ab0450a5d88b6c01912eb874b1b166d062549947b3545ab