[INFO] fetching crate ludtwig 0.6.1...
[INFO] checking ludtwig-0.6.1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate ludtwig 0.6.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ludtwig 0.6.1 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ludtwig 0.6.1
[INFO] finished tweaking crates.io crate ludtwig 0.6.1
[INFO] tweaked toml for crates.io crate ludtwig 0.6.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate ludtwig 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] 1614e4e060d27942b3731deefeb872ffb631050cf38e19a3139715b293f50ac3
[INFO] running `Command { std: "docker" "start" "-a" "1614e4e060d27942b3731deefeb872ffb631050cf38e19a3139715b293f50ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1614e4e060d27942b3731deefeb872ffb631050cf38e19a3139715b293f50ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1614e4e060d27942b3731deefeb872ffb631050cf38e19a3139715b293f50ac3", kill_on_drop: false }`
[INFO] [stdout] 1614e4e060d27942b3731deefeb872ffb631050cf38e19a3139715b293f50ac3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fa206a30c684db7d12a92b25b0fb7f16a7bc2daa14be16fb18c633fd6e9526b
[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" "2fa206a30c684db7d12a92b25b0fb7f16a7bc2daa14be16fb18c633fd6e9526b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking inlinable_string v0.1.14
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling figment v0.10.5
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking ludtwig-parser v0.3.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pear_codegen v0.2.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking pear v0.2.2
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ludtwig v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.83s
[INFO] running `Command { std: "docker" "inspect" "2fa206a30c684db7d12a92b25b0fb7f16a7bc2daa14be16fb18c633fd6e9526b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa206a30c684db7d12a92b25b0fb7f16a7bc2daa14be16fb18c633fd6e9526b", kill_on_drop: false }`
[INFO] [stdout] 2fa206a30c684db7d12a92b25b0fb7f16a7bc2daa14be16fb18c633fd6e9526b