[INFO] fetching crate serde_rec 0.1.0...
[INFO] testing serde_rec-0.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate serde_rec 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate serde_rec 0.1.0
[INFO] finished tweaking crates.io crate serde_rec 0.1.0
[INFO] tweaked toml for crates.io crate serde_rec 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_rec 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18ddb9b2a44ae709b8e682aa1cc29927180e3b305600dc36380ab6ab26d2e428
[INFO] running `Command { std: "docker" "start" "-a" "18ddb9b2a44ae709b8e682aa1cc29927180e3b305600dc36380ab6ab26d2e428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18ddb9b2a44ae709b8e682aa1cc29927180e3b305600dc36380ab6ab26d2e428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18ddb9b2a44ae709b8e682aa1cc29927180e3b305600dc36380ab6ab26d2e428", kill_on_drop: false }`
[INFO] [stdout] 18ddb9b2a44ae709b8e682aa1cc29927180e3b305600dc36380ab6ab26d2e428
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b073acdfc1844b3767895fdb7ceb113c9c8c4969e0cbb5a3127e648166f2e0eb
[INFO] running `Command { std: "docker" "start" "-a" "b073acdfc1844b3767895fdb7ceb113c9c8c4969e0cbb5a3127e648166f2e0eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_rec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]    --> src/ser.rs:227:5
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct SerializerSeq<'a, 'b> {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 227 |     length: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SerializerSeq` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.56s
[INFO] running `Command { std: "docker" "inspect" "b073acdfc1844b3767895fdb7ceb113c9c8c4969e0cbb5a3127e648166f2e0eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b073acdfc1844b3767895fdb7ceb113c9c8c4969e0cbb5a3127e648166f2e0eb", kill_on_drop: false }`
[INFO] [stdout] b073acdfc1844b3767895fdb7ceb113c9c8c4969e0cbb5a3127e648166f2e0eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa9b7a324aa699739ee544c1dd3410da57f01dc3696ceaa29ae3baaa0b86be35
[INFO] running `Command { std: "docker" "start" "-a" "aa9b7a324aa699739ee544c1dd3410da57f01dc3696ceaa29ae3baaa0b86be35", kill_on_drop: false }`
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]    --> src/ser.rs:227:5
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct SerializerSeq<'a, 'b> {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 227 |     length: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SerializerSeq` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_rec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]    --> src/ser.rs:227:5
[INFO] [stdout]     |
[INFO] [stdout] 224 | pub struct SerializerSeq<'a, 'b> {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 227 |     length: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SerializerSeq` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "aa9b7a324aa699739ee544c1dd3410da57f01dc3696ceaa29ae3baaa0b86be35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa9b7a324aa699739ee544c1dd3410da57f01dc3696ceaa29ae3baaa0b86be35", kill_on_drop: false }`
[INFO] [stdout] aa9b7a324aa699739ee544c1dd3410da57f01dc3696ceaa29ae3baaa0b86be35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4f21bb82617f8d64cad91eb5cb277e1191f34cd4ea2464ec897899f20c733a56
[INFO] running `Command { std: "docker" "start" "-a" "4f21bb82617f8d64cad91eb5cb277e1191f34cd4ea2464ec897899f20c733a56", kill_on_drop: false }`
[INFO] [stderr] warning: field `length` is never read
[INFO] [stderr]    --> src/ser.rs:227:5
[INFO] [stderr]     |
[INFO] [stderr] 224 | pub struct SerializerSeq<'a, 'b> {
[INFO] [stderr]     |            ------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 227 |     length: usize,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `SerializerSeq` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_rec` (lib) generated 1 warning
[INFO] [stderr] warning: `serde_rec` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_rec-da1c2f92be974342)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test ser::tests::test_vec ... ok
[INFO] [stdout] test ser::tests::test_basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_rec
[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" "4f21bb82617f8d64cad91eb5cb277e1191f34cd4ea2464ec897899f20c733a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f21bb82617f8d64cad91eb5cb277e1191f34cd4ea2464ec897899f20c733a56", kill_on_drop: false }`
[INFO] [stdout] 4f21bb82617f8d64cad91eb5cb277e1191f34cd4ea2464ec897899f20c733a56
