[INFO] fetching crate fern-run 0.0.2...
[INFO] checking fern-run-0.0.2 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate fern-run 0.0.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate fern-run 0.0.2 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fern-run 0.0.2
[INFO] finished tweaking crates.io crate fern-run 0.0.2
[INFO] tweaked toml for crates.io crate fern-run 0.0.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate fern-run 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded escargot v0.5.0
[INFO] [stderr]   Downloaded pico-args v0.3.1
[INFO] [stderr]   Downloaded assert_cmd v0.12.0
[INFO] [stderr]   Downloaded ignore v0.4.12
[INFO] [stderr]   Downloaded snafu-derive v0.6.3
[INFO] [stderr]   Downloaded globwalk v0.7.3
[INFO] [stderr]   Downloaded snafu v0.6.3
[INFO] [stderr]   Downloaded assert_fs v0.13.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a291d2dac9e49f77bdaeb569cd861efbbb8f39670e3eab0c492cabaf7b7a675
[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" "3a291d2dac9e49f77bdaeb569cd861efbbb8f39670e3eab0c492cabaf7b7a675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a291d2dac9e49f77bdaeb569cd861efbbb8f39670e3eab0c492cabaf7b7a675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a291d2dac9e49f77bdaeb569cd861efbbb8f39670e3eab0c492cabaf7b7a675", kill_on_drop: false }`
[INFO] [stdout] 3a291d2dac9e49f77bdaeb569cd861efbbb8f39670e3eab0c492cabaf7b7a675
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b0e7518a3291d156e7e0bb20b93718664b8f61abe58dd36f9030db8ad7497a1
[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" "4b0e7518a3291d156e7e0bb20b93718664b8f61abe58dd36f9030db8ad7497a1", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking pico-args v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking memchr v2.3.3
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling snafu-derive v0.6.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking snafu v0.6.3
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking ignore v0.4.12
[INFO] [stderr]     Checking assert_cmd v0.12.0
[INFO] [stderr]     Checking globwalk v0.7.3
[INFO] [stderr]     Checking fern-run v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_fs v0.13.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.36s
[INFO] running `Command { std: "docker" "inspect" "4b0e7518a3291d156e7e0bb20b93718664b8f61abe58dd36f9030db8ad7497a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b0e7518a3291d156e7e0bb20b93718664b8f61abe58dd36f9030db8ad7497a1", kill_on_drop: false }`
[INFO] [stdout] 4b0e7518a3291d156e7e0bb20b93718664b8f61abe58dd36f9030db8ad7497a1