[INFO] fetching crate c2-sys 0.2.0...
[INFO] checking c2-sys-0.2.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate c2-sys 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate c2-sys 0.2.0
[INFO] finished tweaking crates.io crate c2-sys 0.2.0
[INFO] tweaked toml for crates.io crate c2-sys 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate c2-sys 0.2.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 821a0d5d9b2fe93e3ab09499e61aae17b52dfc3c8353d38e892e0160f6742195
[INFO] running `Command { std: "docker" "start" "-a" "821a0d5d9b2fe93e3ab09499e61aae17b52dfc3c8353d38e892e0160f6742195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "821a0d5d9b2fe93e3ab09499e61aae17b52dfc3c8353d38e892e0160f6742195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821a0d5d9b2fe93e3ab09499e61aae17b52dfc3c8353d38e892e0160f6742195", kill_on_drop: false }`
[INFO] [stdout] 821a0d5d9b2fe93e3ab09499e61aae17b52dfc3c8353d38e892e0160f6742195
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bbccf7cf3584871cacf593239a90f9261ad8496b57161ec9c7d7fe4af7519a3
[INFO] running `Command { std: "docker" "start" "-a" "2bbccf7cf3584871cacf593239a90f9261ad8496b57161ec9c7d7fe4af7519a3", kill_on_drop: false }`
[INFO] [stderr]     Checking c2-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `d` is never read
[INFO] [stdout]     --> src/lib.rs:1316:5
[INFO] [stdout]      |
[INFO] [stdout] 1312 | struct c2Simplex {
[INFO] [stdout]      |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1316 |     d: c2sv,
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `c2Simplex` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `d` is never read
[INFO] [stdout]     --> src/lib.rs:1316:5
[INFO] [stdout]      |
[INFO] [stdout] 1312 | struct c2Simplex {
[INFO] [stdout]      |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1316 |     d: c2sv,
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `c2Simplex` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "2bbccf7cf3584871cacf593239a90f9261ad8496b57161ec9c7d7fe4af7519a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bbccf7cf3584871cacf593239a90f9261ad8496b57161ec9c7d7fe4af7519a3", kill_on_drop: false }`
[INFO] [stdout] 2bbccf7cf3584871cacf593239a90f9261ad8496b57161ec9c7d7fe4af7519a3