[INFO] fetching crate libjwt 0.1.0...
[INFO] testing libjwt-0.1.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate libjwt 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libjwt 0.1.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ebabce0ae1b5a541ccfbc3bd2fa78787e6f4cc0d97966da38c97b6ee6b7f8ec
[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" "1ebabce0ae1b5a541ccfbc3bd2fa78787e6f4cc0d97966da38c97b6ee6b7f8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ebabce0ae1b5a541ccfbc3bd2fa78787e6f4cc0d97966da38c97b6ee6b7f8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ebabce0ae1b5a541ccfbc3bd2fa78787e6f4cc0d97966da38c97b6ee6b7f8ec", kill_on_drop: false }`
[INFO] [stdout] 1ebabce0ae1b5a541ccfbc3bd2fa78787e6f4cc0d97966da38c97b6ee6b7f8ec
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c44dee35144591a0524c3e94698c5b892288c8df3499e6b801b4fbd4f4611bee
[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" "c44dee35144591a0524c3e94698c5b892288c8df3499e6b801b4fbd4f4611bee", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.19
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling libjwt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of deprecated associated function `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 the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `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 the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `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 the macro `impl_error_chain_processed` (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" "c44dee35144591a0524c3e94698c5b892288c8df3499e6b801b4fbd4f4611bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44dee35144591a0524c3e94698c5b892288c8df3499e6b801b4fbd4f4611bee", kill_on_drop: false }`
[INFO] [stdout] c44dee35144591a0524c3e94698c5b892288c8df3499e6b801b4fbd4f4611bee