[INFO] fetching crate f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 0.1.5...
[INFO] testing f1d2d2f924e986ac86fdf7b36c94bcdf32beec15-0.1.5 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 0.1.5 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 0.1.5 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 0.1.5
[INFO] finished tweaking crates.io crate f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 0.1.5
[INFO] tweaked toml for crates.io crate f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 0.1.5 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", 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] 6b7c5673a1b3afbd6bd57b410d7f408e872a03e5fe820d002cf26ec97398dde5
[INFO] running `Command { std: "docker" "start" "-a" "6b7c5673a1b3afbd6bd57b410d7f408e872a03e5fe820d002cf26ec97398dde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b7c5673a1b3afbd6bd57b410d7f408e872a03e5fe820d002cf26ec97398dde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b7c5673a1b3afbd6bd57b410d7f408e872a03e5fe820d002cf26ec97398dde5", kill_on_drop: false }`
[INFO] [stdout] 6b7c5673a1b3afbd6bd57b410d7f408e872a03e5fe820d002cf26ec97398dde5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 171521f557424bc6fced323915fbdd142b8f19d0c10ab834a4f8ad17aeae0c39
[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" "171521f557424bc6fced323915fbdd142b8f19d0c10ab834a4f8ad17aeae0c39", kill_on_drop: false }`
[INFO] [stderr]    Compiling f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `thing`
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn thing() {
[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 0.35s
[INFO] running `Command { std: "docker" "inspect" "171521f557424bc6fced323915fbdd142b8f19d0c10ab834a4f8ad17aeae0c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171521f557424bc6fced323915fbdd142b8f19d0c10ab834a4f8ad17aeae0c39", kill_on_drop: false }`
[INFO] [stdout] 171521f557424bc6fced323915fbdd142b8f19d0c10ab834a4f8ad17aeae0c39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ecf48035da91022974d5fdebc39f94b6eb04d6b4ef8cd01da1f4e10eeca9bbe
[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" "1ecf48035da91022974d5fdebc39f94b6eb04d6b4ef8cd01da1f4e10eeca9bbe", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `thing`
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn thing() {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling f1d2d2f924e986ac86fdf7b36c94bcdf32beec15 v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `thing`
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn thing() {
[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 0.76s
[INFO] running `Command { std: "docker" "inspect" "1ecf48035da91022974d5fdebc39f94b6eb04d6b4ef8cd01da1f4e10eeca9bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ecf48035da91022974d5fdebc39f94b6eb04d6b4ef8cd01da1f4e10eeca9bbe", kill_on_drop: false }`
[INFO] [stdout] 1ecf48035da91022974d5fdebc39f94b6eb04d6b4ef8cd01da1f4e10eeca9bbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 97b417bf94257f9111eb24044b5a3432abcbb7c03ca7232f0c2ebf0cf28563d4
[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" "97b417bf94257f9111eb24044b5a3432abcbb7c03ca7232f0c2ebf0cf28563d4", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `thing`
[INFO] [stderr]  --> src/lib.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn thing() {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `f1d2d2f924e986ac86fdf7b36c94bcdf32beec15` (lib) generated 1 warning
[INFO] [stderr] warning: `f1d2d2f924e986ac86fdf7b36c94bcdf32beec15` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/f1d2d2f924e986ac86fdf7b36c94bcdf32beec15-65803ce2241419a4)
[INFO] [stderr]    Doc-tests f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
[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] [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" "97b417bf94257f9111eb24044b5a3432abcbb7c03ca7232f0c2ebf0cf28563d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b417bf94257f9111eb24044b5a3432abcbb7c03ca7232f0c2ebf0cf28563d4", kill_on_drop: false }`
[INFO] [stdout] 97b417bf94257f9111eb24044b5a3432abcbb7c03ca7232f0c2ebf0cf28563d4