[INFO] cloning repository https://github.com/rustwasm/twiggy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustwasm/twiggy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustwasm%2Ftwiggy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustwasm%2Ftwiggy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64464db7dfd457aaa28e47608d386bda617519e1
[INFO] checking rustwasm/twiggy against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustwasm%2Ftwiggy" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rustwasm/twiggy on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustwasm/twiggy
[INFO] finished tweaking git repo https://github.com/rustwasm/twiggy
[INFO] tweaked toml for git repo https://github.com/rustwasm/twiggy written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rustwasm/twiggy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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] 091fb7a2d842cfc3200b859d3488db6734874eafa10384d7174f6779c3c3e600
[INFO] running `Command { std: "docker" "start" "-a" "091fb7a2d842cfc3200b859d3488db6734874eafa10384d7174f6779c3c3e600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "091fb7a2d842cfc3200b859d3488db6734874eafa10384d7174f6779c3c3e600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091fb7a2d842cfc3200b859d3488db6734874eafa10384d7174f6779c3c3e600", kill_on_drop: false }`
[INFO] [stdout] 091fb7a2d842cfc3200b859d3488db6734874eafa10384d7174f6779c3c3e600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2bf2454f845bb629abb7f6960a1a52ece81856fc1a9fa34662967cbd3e6013b
[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" "e2bf2454f845bb629abb7f6960a1a52ece81856fc1a9fa34662967cbd3e6013b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cc v1.0.24
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling cpp_demangle v0.3.3
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking frozen v1.0.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling bumpalo v3.1.1
[INFO] [stderr]     Checking wasmparser v0.35.3
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking rustop v1.1.1
[INFO] [stderr]    Compiling thread_local v1.0.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking flate2 v1.0.2
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling twiggy-opt v0.7.0 (/opt/rustwide/workdir/opt)
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking goblin v0.1.1
[INFO] [stderr]     Checking wasm-bindgen v0.2.69
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking object v0.17.0
[INFO] [stderr]     Checking twiggy-ir v0.7.0 (/opt/rustwide/workdir/ir)
[INFO] [stderr]     Checking cargo_toml v0.10.0
[INFO] [stdout] warning: field is never read: `roots`
[INFO] [stdout]    --> ir/./ir.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     roots: Frozen<BTreeSet<Id>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `roots`
[INFO] [stdout]    --> ir/./ir.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     roots: Frozen<BTreeSet<Id>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking twiggy-traits v0.7.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]     Checking twiggy-parser v0.7.0 (/opt/rustwide/workdir/parser)
[INFO] [stderr]     Checking twiggy-analyze v0.7.0 (/opt/rustwide/workdir/analyze)
[INFO] [stderr]     Checking job_runner v0.1.0 (/opt/rustwide/workdir/job_runner)
[INFO] [stderr]     Checking twiggy-wasm-api v0.7.0 (/opt/rustwide/workdir/wasm-api)
[INFO] [stderr]     Checking twiggy v0.7.0 (/opt/rustwide/workdir/twiggy)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.98s
[INFO] running `Command { std: "docker" "inspect" "e2bf2454f845bb629abb7f6960a1a52ece81856fc1a9fa34662967cbd3e6013b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2bf2454f845bb629abb7f6960a1a52ece81856fc1a9fa34662967cbd3e6013b", kill_on_drop: false }`
[INFO] [stdout] e2bf2454f845bb629abb7f6960a1a52ece81856fc1a9fa34662967cbd3e6013b