[INFO] cloning repository https://github.com/matklad/wasmer-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matklad/wasmer-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fwasmer-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fwasmer-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30ede831d6bfe0ed714f315e8e075b4523b83999
[INFO] checking matklad/wasmer-repro against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fwasmer-repro" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matklad/wasmer-repro on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/matklad/wasmer-repro
[INFO] finished tweaking git repo https://github.com/matklad/wasmer-repro
[INFO] tweaked toml for git repo https://github.com/matklad/wasmer-repro written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/matklad/wasmer-repro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap2 v0.2.2
[INFO] [stderr]   Downloaded wasmer v1.0.2
[INFO] [stderr]   Downloaded wasmer-engine-jit v1.0.2
[INFO] [stderr]   Downloaded dynasmrt v1.0.1
[INFO] [stderr]   Downloaded enumset v1.0.6
[INFO] [stderr]   Downloaded enumset_derive v0.5.4
[INFO] [stderr]   Downloaded wasmer-compiler v1.0.2
[INFO] [stderr]   Downloaded dynasm v1.0.1
[INFO] [stderr]   Downloaded wasmer-compiler-singlepass v1.0.2
[INFO] [stderr]   Downloaded wasmparser v0.65.0
[INFO] [stderr]   Downloaded target-lexicon v0.11.2
[INFO] [stderr]   Downloaded wasmer-vm v1.0.2
[INFO] [stderr]   Downloaded wast v35.0.2
[INFO] [stderr]   Downloaded wasmer-object v1.0.2
[INFO] [stderr]   Downloaded wat v1.0.37
[INFO] [stderr]   Downloaded wasmer-types v1.0.2
[INFO] [stderr]   Downloaded cranelift-entity v0.68.0
[INFO] [stderr]   Downloaded wasmer-engine-native v1.0.2
[INFO] [stderr]   Downloaded wasmer-derive v1.0.2
[INFO] [stderr]   Downloaded wasmer-engine v1.0.2
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b41c15dd1d829e7b1cf9a8e1b14840c35be27351ba85724589e8d4952b2f83d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4b41c15dd1d829e7b1cf9a8e1b14840c35be27351ba85724589e8d4952b2f83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b41c15dd1d829e7b1cf9a8e1b14840c35be27351ba85724589e8d4952b2f83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b41c15dd1d829e7b1cf9a8e1b14840c35be27351ba85724589e8d4952b2f83d", kill_on_drop: false }`
[INFO] [stdout] 4b41c15dd1d829e7b1cf9a8e1b14840c35be27351ba85724589e8d4952b2f83d
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 9ed33b9da42885e7687d3a7852049490117860ab79a80bbfcf8822ab47c4ba56
[INFO] running `Command { std: "docker" "start" "-a" "9ed33b9da42885e7687d3a7852049490117860ab79a80bbfcf8822ab47c4ba56", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling target-lexicon v0.11.2
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking wasmparser v0.65.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking benchmarks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling wasmer-vm v1.0.2
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking wast v35.0.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking memmap2 v0.2.2
[INFO] [stderr]     Checking which v4.1.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking wat v1.0.37
[INFO] [stderr]    Compiling darling_core v0.12.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling dynasm v1.0.1
[INFO] [stderr]    Compiling wasmer-derive v1.0.2
[INFO] [stderr]    Compiling darling_macro v0.12.3
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]    Compiling darling v0.12.3
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]    Compiling enumset_derive v0.5.4
[INFO] [stderr]     Checking enumset v1.0.6
[INFO] [stderr]     Checking cranelift-entity v0.68.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]     Checking wasmer-types v1.0.2
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking dynasmrt v1.0.1
[INFO] [stderr]     Checking wasmer-compiler v1.0.2
[INFO] [stderr]     Checking wasmer-engine v1.0.2
[INFO] [stderr]     Checking wasmer-object v1.0.2
[INFO] [stderr]     Checking wasmer-compiler-singlepass v1.0.2
[INFO] [stderr]     Checking wasmer-engine-jit v1.0.2
[INFO] [stderr]     Checking wasmer-engine-native v1.0.2
[INFO] [stderr]     Checking wasmer v1.0.2
[INFO] [stdout] warning: unused variable: `xs`
[INFO] [stdout]   --> examples/bench.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let xs = vec![92; 1024 * 1024 * 100];
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_xs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] running `Command { std: "docker" "inspect" "9ed33b9da42885e7687d3a7852049490117860ab79a80bbfcf8822ab47c4ba56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed33b9da42885e7687d3a7852049490117860ab79a80bbfcf8822ab47c4ba56", kill_on_drop: false }`
[INFO] [stdout] 9ed33b9da42885e7687d3a7852049490117860ab79a80bbfcf8822ab47c4ba56