[INFO] fetching crate safe_bindgen 0.13.3...
[INFO] checking safe_bindgen-0.13.3 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate safe_bindgen 0.13.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate safe_bindgen 0.13.3 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safe_bindgen 0.13.3
[INFO] finished tweaking crates.io crate safe_bindgen 0.13.3
[INFO] tweaked toml for crates.io crate safe_bindgen 0.13.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate safe_bindgen 0.13.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 606c7041c6c6b7a400876cdd3925065ad1f925cef8538627c2377a847b660200
[INFO] running `Command { std: "docker" "start" "-a" "606c7041c6c6b7a400876cdd3925065ad1f925cef8538627c2377a847b660200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "606c7041c6c6b7a400876cdd3925065ad1f925cef8538627c2377a847b660200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "606c7041c6c6b7a400876cdd3925065ad1f925cef8538627c2377a847b660200", kill_on_drop: false }`
[INFO] [stdout] 606c7041c6c6b7a400876cdd3925065ad1f925cef8538627c2377a847b660200
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 344f343b9a7ee4cb65e7e6427be91e296b2738caae21fb5a4d146b4b416599b4
[INFO] running `Command { std: "docker" "start" "-a" "344f343b9a7ee4cb65e7e6427be91e296b2738caae21fb5a4d146b4b416599b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]    Compiling rustfmt v0.10.0
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling jni v0.12.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking strings v0.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling extprim v1.7.1
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking syntex_pos v0.59.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking syntex_errors v0.59.1
[INFO] [stderr]     Checking syntex_syntax v0.59.1
[INFO] [stderr]     Checking safe_bindgen v0.13.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/csharp/mod.rs:724:5
[INFO] [stdout]     |
[INFO] [stdout] 724 |     mem::replace(new_ty, orig_new_ty);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/csharp/mod.rs:724:5
[INFO] [stdout]     |
[INFO] [stdout] 724 |     mem::replace(new_ty, orig_new_ty);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "344f343b9a7ee4cb65e7e6427be91e296b2738caae21fb5a4d146b4b416599b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "344f343b9a7ee4cb65e7e6427be91e296b2738caae21fb5a4d146b4b416599b4", kill_on_drop: false }`
[INFO] [stdout] 344f343b9a7ee4cb65e7e6427be91e296b2738caae21fb5a4d146b4b416599b4