[INFO] cloning repository https://github.com/vjancik/serde_bug [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vjancik/serde_bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvjancik%2Fserde_bug", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvjancik%2Fserde_bug'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d96913c9f6acdc99179a80168ec89b1a70172d9a [INFO] testing vjancik/serde_bug against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvjancik%2Fserde_bug" "/workspace/builds/worker-108/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-108/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vjancik/serde_bug 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 git repo https://github.com/vjancik/serde_bug [INFO] finished tweaking git repo https://github.com/vjancik/serde_bug [INFO] tweaked toml for git repo https://github.com/vjancik/serde_bug written to /workspace/builds/worker-108/source/Cargo.toml [INFO] crate git repo https://github.com/vjancik/serde_bug already has a lockfile, it will not be regenerated [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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] bb169966b16a187c60a2f6ec6d5c1fe19fe152157270fb11e2f91eee37bde893 [INFO] running `Command { std: "docker" "start" "-a" "bb169966b16a187c60a2f6ec6d5c1fe19fe152157270fb11e2f91eee37bde893", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb169966b16a187c60a2f6ec6d5c1fe19fe152157270fb11e2f91eee37bde893", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb169966b16a187c60a2f6ec6d5c1fe19fe152157270fb11e2f91eee37bde893", kill_on_drop: false }` [INFO] [stdout] bb169966b16a187c60a2f6ec6d5c1fe19fe152157270fb11e2f91eee37bde893 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 9e06b9bdba32aee2633da92c181fbae443f87052d5e4ad0f32f9aacd76ece76e [INFO] running `Command { std: "docker" "start" "-a" "9e06b9bdba32aee2633da92c181fbae443f87052d5e4ad0f32f9aacd76ece76e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.58 [INFO] [stderr] Compiling serde_derive v1.0.119 [INFO] [stderr] Compiling serde v1.0.119 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Compiling serde_bug v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `optional` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | optional: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `TestStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/main.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | #[derive(Debug, Deserialize)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `notoptional` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | notoptional: i32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `TestStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/main.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | #[derive(Debug, Deserialize)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 27s [INFO] running `Command { std: "docker" "inspect" "9e06b9bdba32aee2633da92c181fbae443f87052d5e4ad0f32f9aacd76ece76e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e06b9bdba32aee2633da92c181fbae443f87052d5e4ad0f32f9aacd76ece76e", kill_on_drop: false }` [INFO] [stdout] 9e06b9bdba32aee2633da92c181fbae443f87052d5e4ad0f32f9aacd76ece76e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] d7bc9eee31f5c8d7db3e5562832bdcb584a874bd60a23cdbadea437c7c68b841 [INFO] running `Command { std: "docker" "start" "-a" "d7bc9eee31f5c8d7db3e5562832bdcb584a874bd60a23cdbadea437c7c68b841", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling serde_bug v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `optional` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | optional: Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `TestStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/main.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | #[derive(Debug, Deserialize)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `notoptional` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | notoptional: i32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `TestStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/main.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | #[derive(Debug, Deserialize)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.12s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/serde_bug-20b9b05eb822d691) [INFO] running `Command { std: "docker" "inspect" "d7bc9eee31f5c8d7db3e5562832bdcb584a874bd60a23cdbadea437c7c68b841", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7bc9eee31f5c8d7db3e5562832bdcb584a874bd60a23cdbadea437c7c68b841", kill_on_drop: false }` [INFO] [stdout] d7bc9eee31f5c8d7db3e5562832bdcb584a874bd60a23cdbadea437c7c68b841 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 42ea72b4eb7b40f591d72c133bd650506eed8988b37fafaa6dd0d7d4fee0f81a [INFO] running `Command { std: "docker" "start" "-a" "42ea72b4eb7b40f591d72c133bd650506eed8988b37fafaa6dd0d7d4fee0f81a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: field is never read: `optional` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | optional: Option, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `TestStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/main.rs:5:10 [INFO] [stderr] | [INFO] [stderr] 5 | #[derive(Debug, Deserialize)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `notoptional` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | notoptional: i32, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `TestStruct` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/main.rs:5:10 [INFO] [stderr] | [INFO] [stderr] 5 | #[derive(Debug, Deserialize)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `serde_bug` (bin "serde_bug" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.81s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/serde_bug-20b9b05eb822d691) [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" "42ea72b4eb7b40f591d72c133bd650506eed8988b37fafaa6dd0d7d4fee0f81a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42ea72b4eb7b40f591d72c133bd650506eed8988b37fafaa6dd0d7d4fee0f81a", kill_on_drop: false }` [INFO] [stdout] 42ea72b4eb7b40f591d72c133bd650506eed8988b37fafaa6dd0d7d4fee0f81a