[INFO] updating cached repository https://github.com/brainvader/serde-bayard
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4df84f4cc99ef0c7bd87d90d10ed7841c796982
[INFO] checking brainvader/serde-bayard against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrainvader%2Fserde-bayard" "/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/brainvader/serde-bayard on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brainvader/serde-bayard
[INFO] finished tweaking git repo https://github.com/brainvader/serde-bayard
[INFO] tweaked toml for git repo https://github.com/brainvader/serde-bayard written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/brainvader/serde-bayard already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a786a0993364dd054afb3ea5cca2ec3f4473b59144798feab7f2b55b37aeae95
[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" "a786a0993364dd054afb3ea5cca2ec3f4473b59144798feab7f2b55b37aeae95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a786a0993364dd054afb3ea5cca2ec3f4473b59144798feab7f2b55b37aeae95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a786a0993364dd054afb3ea5cca2ec3f4473b59144798feab7f2b55b37aeae95", kill_on_drop: false }`
[INFO] [stdout] a786a0993364dd054afb3ea5cca2ec3f4473b59144798feab7f2b55b37aeae95
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 929bd6b6f67db9bdc9deed7455b805a345a002b6f3a462cfbe73e0a1a6bebcc5
[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" "929bd6b6f67db9bdc9deed7455b805a345a002b6f3a462cfbe73e0a1a6bebcc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking serde-bayard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `evangelion_01`
[INFO] [stdout]   --> examples/enum_adjacently_tagged.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let evangelion_01 = Character::Evangelion {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_evangelion_01`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sachiel`
[INFO] [stdout]   --> examples/enum_adjacently_tagged.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let sachiel = Character::Angel {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sachiel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `evangelion_01`
[INFO] [stdout]   --> examples/enum_externally_tagged.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let evangelion_01 = Character::Evangelion {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_evangelion_01`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sachiel`
[INFO] [stdout]   --> examples/enum_externally_tagged.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let sachiel = Character::Angel {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sachiel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `evangelion_01`
[INFO] [stdout]   --> examples/enum_internally_tagged.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let evangelion_01 = Character::Evangelion {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_evangelion_01`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sachiel`
[INFO] [stdout]   --> examples/enum_internally_tagged.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let sachiel = Character::Angel {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sachiel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `evangelion_01`
[INFO] [stdout]   --> examples/enum_untagged.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let evangelion_01 = Character::Evangelion {
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_evangelion_01`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sachiel`
[INFO] [stdout]   --> examples/enum_untagged.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let sachiel = Character::Angel {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sachiel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.64s
[INFO] running `Command { std: "docker" "inspect" "929bd6b6f67db9bdc9deed7455b805a345a002b6f3a462cfbe73e0a1a6bebcc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "929bd6b6f67db9bdc9deed7455b805a345a002b6f3a462cfbe73e0a1a6bebcc5", kill_on_drop: false }`
[INFO] [stdout] 929bd6b6f67db9bdc9deed7455b805a345a002b6f3a462cfbe73e0a1a6bebcc5