[INFO] fetching crate cr 0.1.1...
[INFO] checking cr-0.1.1 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate cr 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate cr 0.1.1 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cr 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cr 0.1.1
[INFO] tweaked toml for crates.io crate cr 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 63 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83b68a3e14f6c242d7d446bcaa7aaaad100f1df54c6b6bc0f25d32526932e102
[INFO] running `Command { std: "docker" "start" "-a" "83b68a3e14f6c242d7d446bcaa7aaaad100f1df54c6b6bc0f25d32526932e102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83b68a3e14f6c242d7d446bcaa7aaaad100f1df54c6b6bc0f25d32526932e102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83b68a3e14f6c242d7d446bcaa7aaaad100f1df54c6b6bc0f25d32526932e102", kill_on_drop: false }`
[INFO] [stdout] 83b68a3e14f6c242d7d446bcaa7aaaad100f1df54c6b6bc0f25d32526932e102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 172050231b9f395c5de14aff09521d985552ebfd97379832c8fa75d216d07832
[INFO] running `Command { std: "docker" "start" "-a" "172050231b9f395c5de14aff09521d985552ebfd97379832c8fa75d216d07832", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling object v0.36.5
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling cr-sys v0.1.1
[INFO] [stderr]     Checking cr v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/lib.rs:48:58
[INFO] [stdout]    |
[INFO] [stdout] 48 |             cr_failure::CR_NONE | cr_failure::CR_USER => (rc),
[INFO] [stdout]    |                                                          ^  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -             cr_failure::CR_NONE | cr_failure::CR_USER => (rc),
[INFO] [stdout] 48 +             cr_failure::CR_NONE | cr_failure::CR_USER => rc,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/lib.rs:48:58
[INFO] [stdout]    |
[INFO] [stdout] 48 |             cr_failure::CR_NONE | cr_failure::CR_USER => (rc),
[INFO] [stdout]    |                                                          ^  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -             cr_failure::CR_NONE | cr_failure::CR_USER => (rc),
[INFO] [stdout] 48 +             cr_failure::CR_NONE | cr_failure::CR_USER => rc,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `basic_state`
[INFO] [stdout]  --> examples/basic_state.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type BasicPlugin = cr::Plugin<BasicState>;
[INFO] [stdout]   |                                               ^ consider adding a `main` function to `examples/basic_state.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] warning: field `counter` is never read
[INFO] [stdout]  --> examples/basic_state.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct BasicState {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 3 |     pub counter: i32,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BasicState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cr` (example "basic_state") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "172050231b9f395c5de14aff09521d985552ebfd97379832c8fa75d216d07832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "172050231b9f395c5de14aff09521d985552ebfd97379832c8fa75d216d07832", kill_on_drop: false }`
[INFO] [stdout] 172050231b9f395c5de14aff09521d985552ebfd97379832c8fa75d216d07832
