[INFO] fetching crate rustversion-msrv 0.100.0...
[INFO] checking rustversion-msrv-0.100.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rustversion-msrv 0.100.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rustversion-msrv 0.100.0
[INFO] finished tweaking crates.io crate rustversion-msrv 0.100.0
[INFO] tweaked toml for crates.io crate rustversion-msrv 0.100.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustversion-msrv 0.100.0 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 35 packages to latest compatible versions
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a89da43f950a3954daa0f3df284f2b8ea6a4acefa3aa91d5e4068871ef9a612a
[INFO] running `Command { std: "docker" "start" "-a" "a89da43f950a3954daa0f3df284f2b8ea6a4acefa3aa91d5e4068871ef9a612a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a89da43f950a3954daa0f3df284f2b8ea6a4acefa3aa91d5e4068871ef9a612a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a89da43f950a3954daa0f3df284f2b8ea6a4acefa3aa91d5e4068871ef9a612a", kill_on_drop: false }`
[INFO] [stdout] a89da43f950a3954daa0f3df284f2b8ea6a4acefa3aa91d5e4068871ef9a612a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 022cc6b3b874aa84a7b9be03d5fd9f5fe2238fcf43da8c97fc6d7c01ee5f27e9
[INFO] running `Command { std: "docker" "start" "-a" "022cc6b3b874aa84a7b9be03d5fd9f5fe2238fcf43da8c97fc6d7c01ee5f27e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling target-triple v0.1.4
[INFO] [stderr]    Compiling rustversion-msrv v0.100.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking winnow v0.7.11
[INFO] [stderr]     Checking toml_write v0.1.2
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stdout] warning: struct `Date` is never constructed
[INFO] [stdout]   --> build/rustc.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Date {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dissimilar v1.0.10
[INFO] [stdout] warning: struct `Release` is never constructed
[INFO] [stdout]  --> src/release.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Release {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Release` is never constructed
[INFO] [stdout]  --> src/release.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Release {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking toml_edit v0.22.27
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]     Checking trybuild v1.0.105
[INFO] [stdout] warning: struct `Release` is never constructed
[INFO] [stdout]  --> src/release.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Release {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.71s
[INFO] running `Command { std: "docker" "inspect" "022cc6b3b874aa84a7b9be03d5fd9f5fe2238fcf43da8c97fc6d7c01ee5f27e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "022cc6b3b874aa84a7b9be03d5fd9f5fe2238fcf43da8c97fc6d7c01ee5f27e9", kill_on_drop: false }`
[INFO] [stdout] 022cc6b3b874aa84a7b9be03d5fd9f5fe2238fcf43da8c97fc6d7c01ee5f27e9