[INFO] cloning repository https://github.com/ruben-arts/serde_default
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruben-arts/serde_default" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruben-arts%2Fserde_default", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruben-arts%2Fserde_default'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 210a7876b9671b72e9582d04e7e7e965618499dd
[INFO] checking ruben-arts/serde_default against master#d49be02cf6d2e2a01264fcdef1e20c826710c0f5 for pr-133570-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruben-arts%2Fserde_default" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruben-arts/serde_default on toolchain d49be02cf6d2e2a01264fcdef1e20c826710c0f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ruben-arts/serde_default
[INFO] finished tweaking git repo https://github.com/ruben-arts/serde_default
[INFO] tweaked toml for git repo https://github.com/ruben-arts/serde_default written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ruben-arts/serde_default 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" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94fed65ee8a7b74d31a805bedd31834d27bbda03933ad9a282b48aef903c3b7a
[INFO] running `Command { std: "docker" "start" "-a" "94fed65ee8a7b74d31a805bedd31834d27bbda03933ad9a282b48aef903c3b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94fed65ee8a7b74d31a805bedd31834d27bbda03933ad9a282b48aef903c3b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94fed65ee8a7b74d31a805bedd31834d27bbda03933ad9a282b48aef903c3b7a", kill_on_drop: false }`
[INFO] [stdout] 94fed65ee8a7b74d31a805bedd31834d27bbda03933ad9a282b48aef903c3b7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c400fb2cdc57b1164088572302627970ddaa555e5612a45fb528f95463355af1
[INFO] running `Command { std: "docker" "start" "-a" "c400fb2cdc57b1164088572302627970ddaa555e5612a45fb528f95463355af1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking winnow v0.5.28
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking serde_spanned v0.6.4
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking toml_edit v0.21.0
[INFO] [stderr]     Checking serde_default v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `foo` is never read
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Foos {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 4 |     foo: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Foos` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `foo` and `bar` are never read
[INFO] [stdout]   --> src/main.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct Test {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 8  |     #[serde(deserialize_with = "deserialize_foos")]
[INFO] [stdout] 9  |     pub foo: Option<Foos>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 10 |     pub bar: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `foo` is never read
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Foos {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 4 |     foo: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Foos` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `foo` and `bar` are never read
[INFO] [stdout]   --> src/main.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct Test {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 8  |     #[serde(deserialize_with = "deserialize_foos")]
[INFO] [stdout] 9  |     pub foo: Option<Foos>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 10 |     pub bar: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Test` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.13s
[INFO] running `Command { std: "docker" "inspect" "c400fb2cdc57b1164088572302627970ddaa555e5612a45fb528f95463355af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c400fb2cdc57b1164088572302627970ddaa555e5612a45fb528f95463355af1", kill_on_drop: false }`
[INFO] [stdout] c400fb2cdc57b1164088572302627970ddaa555e5612a45fb528f95463355af1