[INFO] fetching crate illist 0.1.0...
[INFO] testing illist-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate illist 0.1.0 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate illist 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate illist 0.1.0
[INFO] finished tweaking crates.io crate illist 0.1.0
[INFO] tweaked toml for crates.io crate illist 0.1.0 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a639b003cc5db6146d75238ba9f3e9c22566fe3cfd16a639c19259d53218d65
[INFO] running `Command { std: "docker" "start" "-a" "2a639b003cc5db6146d75238ba9f3e9c22566fe3cfd16a639c19259d53218d65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a639b003cc5db6146d75238ba9f3e9c22566fe3cfd16a639c19259d53218d65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a639b003cc5db6146d75238ba9f3e9c22566fe3cfd16a639c19259d53218d65", kill_on_drop: false }`
[INFO] [stdout] 2a639b003cc5db6146d75238ba9f3e9c22566fe3cfd16a639c19259d53218d65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2febb48971fba1e7e6b74d15a6d987ceeb4f19c9a5d813aa18d67b9c4d31b16
[INFO] running `Command { std: "docker" "start" "-a" "a2febb48971fba1e7e6b74d15a6d987ceeb4f19c9a5d813aa18d67b9c4d31b16", kill_on_drop: false }`
[INFO] [stderr]    Compiling illist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/node.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "a2febb48971fba1e7e6b74d15a6d987ceeb4f19c9a5d813aa18d67b9c4d31b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2febb48971fba1e7e6b74d15a6d987ceeb4f19c9a5d813aa18d67b9c4d31b16", kill_on_drop: false }`
[INFO] [stdout] a2febb48971fba1e7e6b74d15a6d987ceeb4f19c9a5d813aa18d67b9c4d31b16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e795014d588ae4b5970abd4ae0443e3e44fb36bb1948d064cb93d23e3c3415aa
[INFO] running `Command { std: "docker" "start" "-a" "e795014d588ae4b5970abd4ae0443e3e44fb36bb1948d064cb93d23e3c3415aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/node.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling illist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `empty`
[INFO] [stdout]   --> src/node.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.87s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/illist-a0e83901c7a76be0)
[INFO] running `Command { std: "docker" "inspect" "e795014d588ae4b5970abd4ae0443e3e44fb36bb1948d064cb93d23e3c3415aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e795014d588ae4b5970abd4ae0443e3e44fb36bb1948d064cb93d23e3c3415aa", kill_on_drop: false }`
[INFO] [stdout] e795014d588ae4b5970abd4ae0443e3e44fb36bb1948d064cb93d23e3c3415aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d3016cdeb05e8b882e2220c0f65713676df40a66abcf64ac40d47db0f73eaea
[INFO] running `Command { std: "docker" "start" "-a" "4d3016cdeb05e8b882e2220c0f65713676df40a66abcf64ac40d47db0f73eaea", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `empty`
[INFO] [stderr]   --> src/node.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn empty(prev: Id, next: Id) -> Node<T> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `illist` (lib) generated 1 warning
[INFO] [stderr] warning: `illist` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/illist-a0e83901c7a76be0)
[INFO] [stderr]    Doc-tests illist
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::pop ... ok
[INFO] [stdout] test tests::push_back ... ok
[INFO] [stdout] test tests::unordered_iter ... ok
[INFO] [stdout] test tests::push_pop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "4d3016cdeb05e8b882e2220c0f65713676df40a66abcf64ac40d47db0f73eaea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3016cdeb05e8b882e2220c0f65713676df40a66abcf64ac40d47db0f73eaea", kill_on_drop: false }`
[INFO] [stdout] 4d3016cdeb05e8b882e2220c0f65713676df40a66abcf64ac40d47db0f73eaea