[INFO] crate libjwt 0.1.0 is already in cache
[INFO] testing libjwt-0.1.0 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate libjwt 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libjwt 0.1.0 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libjwt 0.1.0
[INFO] finished tweaking crates.io crate libjwt 0.1.0
[INFO] tweaked toml for crates.io crate libjwt 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab53c76a0e08c491ba55901ca2345a8bd92d7ad20122f3fc387354b897b3a7dd
[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" "ab53c76a0e08c491ba55901ca2345a8bd92d7ad20122f3fc387354b897b3a7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab53c76a0e08c491ba55901ca2345a8bd92d7ad20122f3fc387354b897b3a7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab53c76a0e08c491ba55901ca2345a8bd92d7ad20122f3fc387354b897b3a7dd", kill_on_drop: false }`
[INFO] [stdout] ab53c76a0e08c491ba55901ca2345a8bd92d7ad20122f3fc387354b897b3a7dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--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] 4d0ec6eb059337e92dfe1a7b877096188bbcce4ca202a990ec3999b7bb8c51cd
[INFO] running `Command { std: "docker" "start" "-a" "4d0ec6eb059337e92dfe1a7b877096188bbcce4ca202a990ec3999b7bb8c51cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling libjwt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / error_chain!{
[INFO] [stdout] 13 | |     foreign_links {
[INFO] [stdout] 14 | |         Io(::std::io::Error);
[INFO] [stdout] 15 | |         Serde(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     }
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:13:58
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![deny(missing_docs, unsafe_code, unused_extern_crates, warnings)]
[INFO] [stdout]    |                                                          ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / error_chain!{
[INFO] [stdout] 13 | |     foreign_links {
[INFO] [stdout] 14 | |         Io(::std::io::Error);
[INFO] [stdout] 15 | |         Serde(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     }
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / error_chain!{
[INFO] [stdout] 13 | |     foreign_links {
[INFO] [stdout] 14 | |         Io(::std::io::Error);
[INFO] [stdout] 15 | |         Serde(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     }
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libjwt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4d0ec6eb059337e92dfe1a7b877096188bbcce4ca202a990ec3999b7bb8c51cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0ec6eb059337e92dfe1a7b877096188bbcce4ca202a990ec3999b7bb8c51cd", kill_on_drop: false }`
[INFO] [stdout] 4d0ec6eb059337e92dfe1a7b877096188bbcce4ca202a990ec3999b7bb8c51cd