[INFO] cloning repository https://github.com/uix-op/MyDataStruct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uix-op/MyDataStruct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct'...
[INFO] [stderr] fatal: error closing file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct/packed-refs.new: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/uix-op/MyDataStruct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uix-op/MyDataStruct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct'...
[INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/uix-op/MyDataStruct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uix-op/MyDataStruct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39a2c0ec17e997c7ada9d23d02bd6871e3bdbaa8
[INFO] testing uix-op/MyDataStruct against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuix-op%2FMyDataStruct" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uix-op/MyDataStruct on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uix-op/MyDataStruct
[INFO] finished tweaking git repo https://github.com/uix-op/MyDataStruct
[INFO] tweaked toml for git repo https://github.com/uix-op/MyDataStruct written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/uix-op/MyDataStruct 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 943a277442aaabfc4a136c6ce54927285400022f802ea61773fb2905dd8c9ab4
[INFO] running `Command { std: "docker" "start" "-a" "943a277442aaabfc4a136c6ce54927285400022f802ea61773fb2905dd8c9ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "943a277442aaabfc4a136c6ce54927285400022f802ea61773fb2905dd8c9ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "943a277442aaabfc4a136c6ce54927285400022f802ea61773fb2905dd8c9ab4", kill_on_drop: false }`
[INFO] [stdout] 943a277442aaabfc4a136c6ce54927285400022f802ea61773fb2905dd8c9ab4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02e2e7700779e67bf03a16816bf3cc38398a0761152da920ba9fd0a9b2f00780
[INFO] running `Command { std: "docker" "start" "-a" "02e2e7700779e67bf03a16816bf3cc38398a0761152da920ba9fd0a9b2f00780", kill_on_drop: false }`
[INFO] [stderr]    Compiling MyDataStruct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Next` is never constructed
[INFO] [stdout]   --> src/data_struct.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub enum NextPtr {
[INFO] [stdout]    |              ------- variant in this enum
[INFO] [stdout] 17 |         Null,
[INFO] [stdout] 18 |         Next(Box<Node>),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert_to_first`, `delete_from_first`, and `insert_to_last` are never used
[INFO] [stdout]   --> src/data_struct.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 24 |     impl List {
[INFO] [stdout]    |     --------- associated items in this implementation
[INFO] [stdout] 25 |         pub fn new() -> Self{
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |         pub fn insert_to_first(&mut self,data:i32) -> (){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |         pub fn delete_from_first(&mut self) -> (){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         pub fn insert_to_last(&mut self,data:i32) -> (){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "02e2e7700779e67bf03a16816bf3cc38398a0761152da920ba9fd0a9b2f00780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02e2e7700779e67bf03a16816bf3cc38398a0761152da920ba9fd0a9b2f00780", kill_on_drop: false }`
[INFO] [stdout] 02e2e7700779e67bf03a16816bf3cc38398a0761152da920ba9fd0a9b2f00780
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b8254b3d26e32cb10817f07c44f1ab447f1bfed45186c27214aca50f9240246
[INFO] running `Command { std: "docker" "start" "-a" "8b8254b3d26e32cb10817f07c44f1ab447f1bfed45186c27214aca50f9240246", kill_on_drop: false }`
[INFO] [stderr]    Compiling MyDataStruct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "8b8254b3d26e32cb10817f07c44f1ab447f1bfed45186c27214aca50f9240246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b8254b3d26e32cb10817f07c44f1ab447f1bfed45186c27214aca50f9240246", kill_on_drop: false }`
[INFO] [stdout] 8b8254b3d26e32cb10817f07c44f1ab447f1bfed45186c27214aca50f9240246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a80ab5a11435cff3b22e19ad2451655e56fe505e070b41d8a6c9722a0ba2524c
[INFO] running `Command { std: "docker" "start" "-a" "a80ab5a11435cff3b22e19ad2451655e56fe505e070b41d8a6c9722a0ba2524c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/MyDataStruct-c1993a513a50684e)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_list::test::test_delete_first ... ok
[INFO] [stdout] test test_list::test::test_insert_first ... ok
[INFO] [stdout] test test_list::test::test_insert_last ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a80ab5a11435cff3b22e19ad2451655e56fe505e070b41d8a6c9722a0ba2524c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a80ab5a11435cff3b22e19ad2451655e56fe505e070b41d8a6c9722a0ba2524c", kill_on_drop: false }`
[INFO] [stdout] a80ab5a11435cff3b22e19ad2451655e56fe505e070b41d8a6c9722a0ba2524c