[INFO] cloning repository https://github.com/Hywan/rayon-fix-registry-leak
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hywan/rayon-fix-registry-leak" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHywan%2Frayon-fix-registry-leak", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHywan%2Frayon-fix-registry-leak'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] feacd3faa8bd5c976a1d6eb6e0c1a5e90cd025df
[INFO] checking Hywan/rayon-fix-registry-leak against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHywan%2Frayon-fix-registry-leak" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hywan/rayon-fix-registry-leak on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hywan/rayon-fix-registry-leak
[INFO] finished tweaking git repo https://github.com/Hywan/rayon-fix-registry-leak
[INFO] tweaked toml for git repo https://github.com/Hywan/rayon-fix-registry-leak written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Hywan/rayon-fix-registry-leak already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/Hywan/wasmer`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] bf3947fb8831071578682ba848e2b4a6218c021e09048731fd471211b61319f0
[INFO] running `Command { std: "docker" "start" "-a" "bf3947fb8831071578682ba848e2b4a6218c021e09048731fd471211b61319f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf3947fb8831071578682ba848e2b4a6218c021e09048731fd471211b61319f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf3947fb8831071578682ba848e2b4a6218c021e09048731fd471211b61319f0", kill_on_drop: false }`
[INFO] [stdout] bf3947fb8831071578682ba848e2b4a6218c021e09048731fd471211b61319f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cefd4d518a39b358b88d7a66d1674defaefe739295ab7482e5f5c6ac8588d54e
[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" "cefd4d518a39b358b88d7a66d1674defaefe739295ab7482e5f5c6ac8588d54e", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.68.0
[INFO] [stderr]     Checking wasmparser v0.65.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling wasmer-vm v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking wast v29.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking wat v1.0.30
[INFO] [stderr]    Compiling darling_core v0.10.3
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling wasmer-derive v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]    Compiling darling_macro v0.10.3
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking which v4.0.2
[INFO] [stderr]    Compiling darling v0.10.3
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking enumset v1.0.1
[INFO] [stderr]     Checking cranelift-entity v0.68.0
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking wasmer-types v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]     Checking cranelift-bforest v0.68.0
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.68.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking wasmer-compiler v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]     Checking wasmer-engine v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]     Checking wasmer-object v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]     Checking wasmer-engine-jit v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]     Checking wasmer-engine-native v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]    Compiling cranelift-codegen v0.68.0
[INFO] [stderr]     Checking cranelift-frontend v0.68.0
[INFO] [stderr]     Checking wasmer v1.0.0-alpha5 (https://github.com/Hywan/wasmer?branch=fix-vm-leak#7973a965)
[INFO] [stderr]     Checking bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 51s
[INFO] running `Command { std: "docker" "inspect" "cefd4d518a39b358b88d7a66d1674defaefe739295ab7482e5f5c6ac8588d54e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefd4d518a39b358b88d7a66d1674defaefe739295ab7482e5f5c6ac8588d54e", kill_on_drop: false }`
[INFO] [stdout] cefd4d518a39b358b88d7a66d1674defaefe739295ab7482e5f5c6ac8588d54e