[INFO] fetching crate jsonwebtokens 1.0.0-alpha.13...
[INFO] checking jsonwebtokens-1.0.0-alpha.13 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate jsonwebtokens 1.0.0-alpha.13 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate jsonwebtokens 1.0.0-alpha.13 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonwebtokens 1.0.0-alpha.13
[INFO] finished tweaking crates.io crate jsonwebtokens 1.0.0-alpha.13
[INFO] tweaked toml for crates.io crate jsonwebtokens 1.0.0-alpha.13 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 161fc1f607b5c4306d88c5313455b59b65f2656dacb73b83aa99e3206a724fdb
[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" "161fc1f607b5c4306d88c5313455b59b65f2656dacb73b83aa99e3206a724fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "161fc1f607b5c4306d88c5313455b59b65f2656dacb73b83aa99e3206a724fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161fc1f607b5c4306d88c5313455b59b65f2656dacb73b83aa99e3206a724fdb", kill_on_drop: false }`
[INFO] [stdout] 161fc1f607b5c4306d88c5313455b59b65f2656dacb73b83aa99e3206a724fdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] 8fef371435f626aeebd83e8fa8c0d6623ec90c7ea0aa19b0b2ab86d57b24fa75
[INFO] running `Command { std: "docker" "start" "-a" "8fef371435f626aeebd83e8fa8c0d6623ec90c7ea0aa19b0b2ab86d57b24fa75", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tokio-test v0.2.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking pem v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking jsonwebtokens v1.0.0-alpha.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `get_time`
[INFO] [stdout]  --> tests/common/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_time() -> u64 {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.90s
[INFO] running `Command { std: "docker" "inspect" "8fef371435f626aeebd83e8fa8c0d6623ec90c7ea0aa19b0b2ab86d57b24fa75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fef371435f626aeebd83e8fa8c0d6623ec90c7ea0aa19b0b2ab86d57b24fa75", kill_on_drop: false }`
[INFO] [stdout] 8fef371435f626aeebd83e8fa8c0d6623ec90c7ea0aa19b0b2ab86d57b24fa75