[INFO] fetching crate preftool-derive 0.2.0...
[INFO] checking preftool-derive-0.2.0 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate preftool-derive 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate preftool-derive 0.2.0 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate preftool-derive 0.2.0
[INFO] finished tweaking crates.io crate preftool-derive 0.2.0
[INFO] tweaked toml for crates.io crate preftool-derive 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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] 6ff5fb06a64a95bd0536aec1d19cfacdc9c00568ebac7d8d8aec3a8de7274e4b
[INFO] running `Command { std: "docker" "start" "-a" "6ff5fb06a64a95bd0536aec1d19cfacdc9c00568ebac7d8d8aec3a8de7274e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ff5fb06a64a95bd0536aec1d19cfacdc9c00568ebac7d8d8aec3a8de7274e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff5fb06a64a95bd0536aec1d19cfacdc9c00568ebac7d8d8aec3a8de7274e4b", kill_on_drop: false }`
[INFO] [stdout] 6ff5fb06a64a95bd0536aec1d19cfacdc9c00568ebac7d8d8aec3a8de7274e4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7aa42921f82adcffdf9f7d739028251644175e9e02bbf59498dfbcd7140f4e3f
[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" "7aa42921f82adcffdf9f7d739028251644175e9e02bbf59498dfbcd7140f4e3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[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 regex v1.4.5
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking preftool v0.2.0
[INFO] [stderr]     Checking darling_core v0.9.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking darling v0.9.0
[INFO] [stderr]    Compiling preftool-derive-core v0.2.0
[INFO] [stderr]     Checking preftool-derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.75s
[INFO] running `Command { std: "docker" "inspect" "7aa42921f82adcffdf9f7d739028251644175e9e02bbf59498dfbcd7140f4e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa42921f82adcffdf9f7d739028251644175e9e02bbf59498dfbcd7140f4e3f", kill_on_drop: false }`
[INFO] [stdout] 7aa42921f82adcffdf9f7d739028251644175e9e02bbf59498dfbcd7140f4e3f