[INFO] fetching crate serde_sv2 2.0.1...
[INFO] checking serde_sv2-2.0.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate serde_sv2 2.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate serde_sv2 2.0.1
[INFO] finished tweaking crates.io crate serde_sv2 2.0.1
[INFO] tweaked toml for crates.io crate serde_sv2 2.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_sv2 2.0.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding buffer_sv2 v1.1.1 (available: v2.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 024e0fe2cb7cf65d6572ba5b479866db08b05a5f63200ff976fdcd8b97bc0f94
[INFO] running `Command { std: "docker" "start" "-a" "024e0fe2cb7cf65d6572ba5b479866db08b05a5f63200ff976fdcd8b97bc0f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "024e0fe2cb7cf65d6572ba5b479866db08b05a5f63200ff976fdcd8b97bc0f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "024e0fe2cb7cf65d6572ba5b479866db08b05a5f63200ff976fdcd8b97bc0f94", kill_on_drop: false }`
[INFO] [stdout] 024e0fe2cb7cf65d6572ba5b479866db08b05a5f63200ff976fdcd8b97bc0f94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fae205b56ad0a2d003b460b81684defbfd98d2ec571eedf7bba50d07bfc41cd
[INFO] running `Command { std: "docker" "start" "-a" "9fae205b56ad0a2d003b460b81684defbfd98d2ec571eedf7bba50d07bfc41cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking inout v0.1.4
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking polyval v0.6.2
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking ghash v0.5.1
[INFO] [stderr]     Checking aes-gcm v0.10.3
[INFO] [stderr]     Checking buffer_sv2 v1.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde_sv2 v2.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Seq` is never constructed
[INFO] [stdout]    --> src/de.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 456 | struct Seq<'de, 'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoStatic` is never used
[INFO] [stdout]  --> src/primitives/byte_arrays/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait IntoStatic {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Seq` is never constructed
[INFO] [stdout]    --> src/de.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 456 | struct Seq<'de, 'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoStatic` is never used
[INFO] [stdout]  --> src/primitives/byte_arrays/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait IntoStatic {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.38s
[INFO] running `Command { std: "docker" "inspect" "9fae205b56ad0a2d003b460b81684defbfd98d2ec571eedf7bba50d07bfc41cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fae205b56ad0a2d003b460b81684defbfd98d2ec571eedf7bba50d07bfc41cd", kill_on_drop: false }`
[INFO] [stdout] 9fae205b56ad0a2d003b460b81684defbfd98d2ec571eedf7bba50d07bfc41cd