[INFO] fetching crate nuance 0.0.0...
[INFO] checking nuance-0.0.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate nuance 0.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate nuance 0.0.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nuance 0.0.0
[INFO] finished tweaking crates.io crate nuance 0.0.0
[INFO] tweaked toml for crates.io crate nuance 0.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6b0c2c01a6298feb921d28b8f9387b876fc4ee3beb1d2499e66bc71c3781d62
[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" "a6b0c2c01a6298feb921d28b8f9387b876fc4ee3beb1d2499e66bc71c3781d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6b0c2c01a6298feb921d28b8f9387b876fc4ee3beb1d2499e66bc71c3781d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b0c2c01a6298feb921d28b8f9387b876fc4ee3beb1d2499e66bc71c3781d62", kill_on_drop: false }`
[INFO] [stdout] a6b0c2c01a6298feb921d28b8f9387b876fc4ee3beb1d2499e66bc71c3781d62
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c40ed6c7354b17d64451f76ecf2c16985e28a4055a71d0a9c6dabb59a8994b5
[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" "7c40ed6c7354b17d64451f76ecf2c16985e28a4055a71d0a9c6dabb59a8994b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.17
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking color-backtrace v0.3.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]     Checking gumdrop v0.7.0
[INFO] [stderr]    Compiling abscissa_derive v0.5.0
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking secrecy v0.6.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking handlebars v2.0.4
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]     Checking abscissa_core v0.5.2
[INFO] [stderr]     Checking abscissa v0.5.1
[INFO] [stderr]     Checking nuance v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `Command { std: "docker" "inspect" "7c40ed6c7354b17d64451f76ecf2c16985e28a4055a71d0a9c6dabb59a8994b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c40ed6c7354b17d64451f76ecf2c16985e28a4055a71d0a9c6dabb59a8994b5", kill_on_drop: false }`
[INFO] [stdout] 7c40ed6c7354b17d64451f76ecf2c16985e28a4055a71d0a9c6dabb59a8994b5