[INFO] cloning repository https://github.com/ivanovaleksey/deser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivanovaleksey/deser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanovaleksey%2Fdeser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanovaleksey%2Fdeser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d6ba1468ed89744676937158023870405296a58
[INFO] checking ivanovaleksey/deser against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivanovaleksey%2Fdeser" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivanovaleksey/deser on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ivanovaleksey/deser
[INFO] finished tweaking git repo https://github.com/ivanovaleksey/deser
[INFO] tweaked toml for git repo https://github.com/ivanovaleksey/deser written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ivanovaleksey/deser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d35b602b4151f4a97b3c11442e4e4a37bb2502b88ca30aafe43be976d33968e
[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" "7d35b602b4151f4a97b3c11442e4e4a37bb2502b88ca30aafe43be976d33968e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d35b602b4151f4a97b3c11442e4e4a37bb2502b88ca30aafe43be976d33968e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d35b602b4151f4a97b3c11442e4e4a37bb2502b88ca30aafe43be976d33968e", kill_on_drop: false }`
[INFO] [stdout] 7d35b602b4151f4a97b3c11442e4e4a37bb2502b88ca30aafe43be976d33968e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--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] a46a2f5949e0a576a07b5473e0dee78099e881ebe65d5c43b90dd5d24e348add
[INFO] running `Command { std: "docker" "start" "-a" "a46a2f5949e0a576a07b5473e0dee78099e881ebe65d5c43b90dd5d24e348add", kill_on_drop: false }`
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking deser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> examples/first.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         _ => unreachable!(),
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` 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 11.49s
[INFO] running `Command { std: "docker" "inspect" "a46a2f5949e0a576a07b5473e0dee78099e881ebe65d5c43b90dd5d24e348add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46a2f5949e0a576a07b5473e0dee78099e881ebe65d5c43b90dd5d24e348add", kill_on_drop: false }`
[INFO] [stdout] a46a2f5949e0a576a07b5473e0dee78099e881ebe65d5c43b90dd5d24e348add