[INFO] fetching crate nib 0.0.7...
[INFO] checking nib-0.0.7 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate nib 0.0.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nib 0.0.7 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nib 0.0.7
[INFO] finished tweaking crates.io crate nib 0.0.7
[INFO] tweaked toml for crates.io crate nib 0.0.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] c545531e05be179eefd44bd414be67d087afeb6520de6f573254a99d3d0ceec9
[INFO] running `Command { std: "docker" "start" "-a" "c545531e05be179eefd44bd414be67d087afeb6520de6f573254a99d3d0ceec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c545531e05be179eefd44bd414be67d087afeb6520de6f573254a99d3d0ceec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c545531e05be179eefd44bd414be67d087afeb6520de6f573254a99d3d0ceec9", kill_on_drop: false }`
[INFO] [stdout] c545531e05be179eefd44bd414be67d087afeb6520de6f573254a99d3d0ceec9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] f811885e2bbd3441330f80fad1622931ecae7c8ae90bf7b588c53332551a8c80
[INFO] running `Command { std: "docker" "start" "-a" "f811885e2bbd3441330f80fad1622931ecae7c8ae90bf7b588c53332551a8c80", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking fancy-regex v0.3.5
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking document_tree v0.3.0
[INFO] [stderr]     Checking plist v1.1.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde-xml-rs v0.3.1
[INFO] [stderr]     Checking syntect v4.5.0
[INFO] [stderr]     Checking handlebars v3.5.4
[INFO] [stderr]     Checking rst_parser v0.3.2
[INFO] [stderr]     Checking rst_renderer v0.3.1
[INFO] [stderr]     Checking nib v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.31s
[INFO] running `Command { std: "docker" "inspect" "f811885e2bbd3441330f80fad1622931ecae7c8ae90bf7b588c53332551a8c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f811885e2bbd3441330f80fad1622931ecae7c8ae90bf7b588c53332551a8c80", kill_on_drop: false }`
[INFO] [stdout] f811885e2bbd3441330f80fad1622931ecae7c8ae90bf7b588c53332551a8c80