[INFO] cloning repository https://github.com/bcdewitt/wasm_specs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bcdewitt/wasm_specs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbcdewitt%2Fwasm_specs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbcdewitt%2Fwasm_specs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0334440485a6e2c8cd6638f5791b27a659ed4a5c
[INFO] checking bcdewitt/wasm_specs against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbcdewitt%2Fwasm_specs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bcdewitt/wasm_specs on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bcdewitt/wasm_specs
[INFO] finished tweaking git repo https://github.com/bcdewitt/wasm_specs
[INFO] tweaked toml for git repo https://github.com/bcdewitt/wasm_specs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/bcdewitt/wasm_specs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] 188c7dba1f958abd90835c5f3532fff7bdabd3329292d916da91b757c0ebbd32
[INFO] running `Command { std: "docker" "start" "-a" "188c7dba1f958abd90835c5f3532fff7bdabd3329292d916da91b757c0ebbd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "188c7dba1f958abd90835c5f3532fff7bdabd3329292d916da91b757c0ebbd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188c7dba1f958abd90835c5f3532fff7bdabd3329292d916da91b757c0ebbd32", kill_on_drop: false }`
[INFO] [stdout] 188c7dba1f958abd90835c5f3532fff7bdabd3329292d916da91b757c0ebbd32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] a48fbb6d1a027f19e84874915fd424192782d00deadfd26d97ec355bb4f220e4
[INFO] running `Command { std: "docker" "start" "-a" "a48fbb6d1a027f19e84874915fd424192782d00deadfd26d97ec355bb4f220e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[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 tynm v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking shred v0.10.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking specs v0.16.1
[INFO] [stderr]     Checking js-sys v0.3.46
[INFO] [stderr]     Checking web-sys v0.3.46
[INFO] [stderr]     Checking wasm_specs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.54s
[INFO] running `Command { std: "docker" "inspect" "a48fbb6d1a027f19e84874915fd424192782d00deadfd26d97ec355bb4f220e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a48fbb6d1a027f19e84874915fd424192782d00deadfd26d97ec355bb4f220e4", kill_on_drop: false }`
[INFO] [stdout] a48fbb6d1a027f19e84874915fd424192782d00deadfd26d97ec355bb4f220e4