[INFO] fetching crate system_token_generator 0.1.0...
[INFO] checking system_token_generator-0.1.0 against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] extracting crate system_token_generator 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate system_token_generator 0.1.0 on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate system_token_generator 0.1.0
[INFO] finished tweaking crates.io crate system_token_generator 0.1.0
[INFO] tweaked toml for crates.io crate system_token_generator 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate system_token_generator 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pem v0.8.1
[INFO] [stderr]   Downloaded simple_asn1 v0.4.1
[INFO] [stderr]   Downloaded jsonwebtoken v7.2.0
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 575d20a536bdef3f6678c7d832260348f462541b93ca198e71253d1788b48eab
[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" "575d20a536bdef3f6678c7d832260348f462541b93ca198e71253d1788b48eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "575d20a536bdef3f6678c7d832260348f462541b93ca198e71253d1788b48eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575d20a536bdef3f6678c7d832260348f462541b93ca198e71253d1788b48eab", kill_on_drop: false }`
[INFO] [stdout] 575d20a536bdef3f6678c7d832260348f462541b93ca198e71253d1788b48eab
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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] 592c2fb301ecc28d32dc54b8ec247833b1e541c075f8673eb3bac1b831fb1bcd
[INFO] running `Command { std: "docker" "start" "-a" "592c2fb301ecc28d32dc54b8ec247833b1e541c075f8673eb3bac1b831fb1bcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking pem v0.8.1
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking jsonwebtoken v7.2.0
[INFO] [stderr]     Checking system_token_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.49s
[INFO] running `Command { std: "docker" "inspect" "592c2fb301ecc28d32dc54b8ec247833b1e541c075f8673eb3bac1b831fb1bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "592c2fb301ecc28d32dc54b8ec247833b1e541c075f8673eb3bac1b831fb1bcd", kill_on_drop: false }`
[INFO] [stdout] 592c2fb301ecc28d32dc54b8ec247833b1e541c075f8673eb3bac1b831fb1bcd