[INFO] fetching crate rlua 0.19.4...
[INFO] checking rlua-0.19.4 against master#20d90b14ffe8c667757a70c08e2d9736ee89f493 for pr-110799
[INFO] extracting crate rlua 0.19.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rlua 0.19.4 on toolchain 20d90b14ffe8c667757a70c08e2d9736ee89f493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rlua 0.19.4
[INFO] finished tweaking crates.io crate rlua 0.19.4
[INFO] tweaked toml for crates.io crate rlua 0.19.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate rlua 0.19.4 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" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu v1.0.6
[INFO] [stderr]   Downloaded rustfix v0.5.1
[INFO] [stderr]   Downloaded tester v0.7.0
[INFO] [stderr]   Downloaded rlua-lua51-sys v0.1.3
[INFO] [stderr]   Downloaded rlua-lua53-sys v0.1.3
[INFO] [stderr]   Downloaded rlua-lua54-sys v0.1.3
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] [stderr]   Downloaded compiletest_rs v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f07ea834a3d05875cda2e4b3bbe8cf2c8fd834a4778590c9354a0a03b8219986
[INFO] running `Command { std: "docker" "start" "-a" "f07ea834a3d05875cda2e4b3bbe8cf2c8fd834a4778590c9354a0a03b8219986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f07ea834a3d05875cda2e4b3bbe8cf2c8fd834a4778590c9354a0a03b8219986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f07ea834a3d05875cda2e4b3bbe8cf2c8fd834a4778590c9354a0a03b8219986", kill_on_drop: false }`
[INFO] [stdout] f07ea834a3d05875cda2e4b3bbe8cf2c8fd834a4778590c9354a0a03b8219986
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+20d90b14ffe8c667757a70c08e2d9736ee89f493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51cd6fe45debc1694035ef7358d8c21a23d133ce0797cf3bcd8f529e636f6aaf
[INFO] running `Command { std: "docker" "start" "-a" "51cd6fe45debc1694035ef7358d8c21a23d133ce0797cf3bcd8f529e636f6aaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling compiletest_rs v0.4.1
[INFO] [stderr]    Compiling rlua-lua54-sys v0.1.3
[INFO] [stderr]    Compiling rlua v0.19.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tester v0.7.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking dirs-next v1.0.2
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking rustyline v6.3.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking rustfix v0.5.1
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lua.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |             Box::from_raw(extra);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let _ = Box::from_raw(extra);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lua.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |             Box::from_raw(extra);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let _ = Box::from_raw(extra);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.41s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "51cd6fe45debc1694035ef7358d8c21a23d133ce0797cf3bcd8f529e636f6aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51cd6fe45debc1694035ef7358d8c21a23d133ce0797cf3bcd8f529e636f6aaf", kill_on_drop: false }`
[INFO] [stdout] 51cd6fe45debc1694035ef7358d8c21a23d133ce0797cf3bcd8f529e636f6aaf