[INFO] fetching crate mikino_api 0.9.1...
[INFO] checking mikino_api-0.9.1 against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] extracting crate mikino_api 0.9.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mikino_api 0.9.1 on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mikino_api 0.9.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mikino_api 0.9.1
[INFO] tweaked toml for crates.io crate mikino_api 0.9.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate mikino_api 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peg-runtime v0.8.0
[INFO] [stderr]   Downloaded peg v0.8.0
[INFO] [stderr]   Downloaded readonly v0.2.1
[INFO] [stderr]   Downloaded peg-macros v0.8.0
[INFO] [stderr]   Downloaded backtrace v0.3.65
[INFO] [stderr]   Downloaded rsmt2 v0.16.0
[INFO] [stderr]   Downloaded syn v1.0.92
[INFO] [stderr]   Downloaded object v0.28.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4db47776f17051bef8170c20a7932b910dd755eaf3405ceb69330c490dceb08
[INFO] running `Command { std: "docker" "start" "-a" "e4db47776f17051bef8170c20a7932b910dd755eaf3405ceb69330c490dceb08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4db47776f17051bef8170c20a7932b910dd755eaf3405ceb69330c490dceb08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4db47776f17051bef8170c20a7932b910dd755eaf3405ceb69330c490dceb08", kill_on_drop: false }`
[INFO] [stdout] e4db47776f17051bef8170c20a7932b910dd755eaf3405ceb69330c490dceb08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0aec26f538faf5a97e8f7258345dc9399e85e20befe9b0d415725503e9a872e
[INFO] running `Command { std: "docker" "start" "-a" "d0aec26f538faf5a97e8f7258345dc9399e85e20befe9b0d415725503e9a872e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling peg-runtime v0.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling peg-macros v0.8.0
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking peg v0.8.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling readonly v0.2.1
[INFO] [stderr]     Checking rsmt2 v0.16.0
[INFO] [stderr]     Checking mikino_api v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NegExpr` is never constructed
[INFO] [stdout]    --> src/check.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 | pub struct NegExpr<'e, E> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NegExpr` is never constructed
[INFO] [stdout]    --> src/check.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 | pub struct NegExpr<'e, E> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "d0aec26f538faf5a97e8f7258345dc9399e85e20befe9b0d415725503e9a872e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0aec26f538faf5a97e8f7258345dc9399e85e20befe9b0d415725503e9a872e", kill_on_drop: false }`
[INFO] [stdout] d0aec26f538faf5a97e8f7258345dc9399e85e20befe9b0d415725503e9a872e