[INFO] fetching crate serde_sv2 2.0.1...
[INFO] building serde_sv2-2.0.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate serde_sv2 2.0.1 into /workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde_sv2 2.0.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b324c8e565590711c1cb3b9cd7dbc5a0a7e78b26eedb61d6f7c0bf359707eac8
[INFO] running `Command { std: "docker" "start" "-a" "b324c8e565590711c1cb3b9cd7dbc5a0a7e78b26eedb61d6f7c0bf359707eac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b324c8e565590711c1cb3b9cd7dbc5a0a7e78b26eedb61d6f7c0bf359707eac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b324c8e565590711c1cb3b9cd7dbc5a0a7e78b26eedb61d6f7c0bf359707eac8", kill_on_drop: false }`
[INFO] [stdout] b324c8e565590711c1cb3b9cd7dbc5a0a7e78b26eedb61d6f7c0bf359707eac8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07ddbb0ddf6a07bf88fd7ea0ccfa079b7c1b38df3653a734439b0f98dbfed556
[INFO] running `Command { std: "docker" "start" "-a" "07ddbb0ddf6a07bf88fd7ea0ccfa079b7c1b38df3653a734439b0f98dbfed556", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling universal-hash v0.5.1
[INFO] [stderr]    Compiling aead v0.5.2
[INFO] [stderr]    Compiling ctr v0.9.2
[INFO] [stderr]    Compiling aes v0.8.4
[INFO] [stderr]    Compiling polyval v0.6.2
[INFO] [stderr]    Compiling ghash v0.5.1
[INFO] [stderr]    Compiling aes-gcm v0.10.3
[INFO] [stderr]    Compiling buffer_sv2 v1.1.1
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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 6.41s
[INFO] running `Command { std: "docker" "inspect" "07ddbb0ddf6a07bf88fd7ea0ccfa079b7c1b38df3653a734439b0f98dbfed556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07ddbb0ddf6a07bf88fd7ea0ccfa079b7c1b38df3653a734439b0f98dbfed556", kill_on_drop: false }`
[INFO] [stdout] 07ddbb0ddf6a07bf88fd7ea0ccfa079b7c1b38df3653a734439b0f98dbfed556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7688b547aea27944d311eaa0594d30de5134d51907b90fbf46a71fab6b1af948
[INFO] running `Command { std: "docker" "start" "-a" "7688b547aea27944d311eaa0594d30de5134d51907b90fbf46a71fab6b1af948", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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: 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]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "7688b547aea27944d311eaa0594d30de5134d51907b90fbf46a71fab6b1af948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7688b547aea27944d311eaa0594d30de5134d51907b90fbf46a71fab6b1af948", kill_on_drop: false }`
[INFO] [stdout] 7688b547aea27944d311eaa0594d30de5134d51907b90fbf46a71fab6b1af948