[INFO] fetching crate rocco 0.1.0...
[INFO] checking rocco-0.1.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate rocco 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rocco 0.1.0 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rocco 0.1.0
[INFO] finished tweaking crates.io crate rocco 0.1.0
[INFO] tweaked toml for crates.io crate rocco 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af586bf023e1b6bc6e8da723bee8f0074b7b944a3cb733be3a69f7a6f5545f2a
[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" "af586bf023e1b6bc6e8da723bee8f0074b7b944a3cb733be3a69f7a6f5545f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af586bf023e1b6bc6e8da723bee8f0074b7b944a3cb733be3a69f7a6f5545f2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af586bf023e1b6bc6e8da723bee8f0074b7b944a3cb733be3a69f7a6f5545f2a", kill_on_drop: false }`
[INFO] [stdout] af586bf023e1b6bc6e8da723bee8f0074b7b944a3cb733be3a69f7a6f5545f2a
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] c553ba0d1e8c8671a2900dbe8ceb964931c45358f26d773be645fa5b9b610f2f
[INFO] running `Command { std: "docker" "start" "-a" "c553ba0d1e8c8671a2900dbe8ceb964931c45358f26d773be645fa5b9b610f2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling ramhorns-derive v0.10.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking comrak v0.8.2
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking ramhorns v0.10.2
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking rocco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.41s
[INFO] running `Command { std: "docker" "inspect" "c553ba0d1e8c8671a2900dbe8ceb964931c45358f26d773be645fa5b9b610f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c553ba0d1e8c8671a2900dbe8ceb964931c45358f26d773be645fa5b9b610f2f", kill_on_drop: false }`
[INFO] [stdout] c553ba0d1e8c8671a2900dbe8ceb964931c45358f26d773be645fa5b9b610f2f