[INFO] fetching crate medal 1.14.5...
[INFO] testing medal-1.14.5 against 1.76.0 for beta-1.77-1
[INFO] extracting crate medal 1.14.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate medal 1.14.5 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate medal 1.14.5
[INFO] finished tweaking crates.io crate medal 1.14.5
[INFO] tweaked toml for crates.io crate medal 1.14.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate medal 1.14.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_yaml v0.8.23
[INFO] [stderr]   Downloaded crypto-mac v0.5.2
[INFO] [stderr]   Downloaded postgres-protocol v0.3.2
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded postgres-shared v0.4.2
[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded generic-array v0.9.1
[INFO] [stderr]   Downloaded sha2 v0.7.1
[INFO] [stderr]   Downloaded libsqlite3-sys v0.9.4
[INFO] [stderr]   Downloaded cookie v0.5.1
[INFO] [stderr]   Downloaded base64 v0.6.0
[INFO] [stderr]   Downloaded block-buffer v0.3.3
[INFO] [stderr]   Downloaded bodyparser v0.6.0
[INFO] [stderr]   Downloaded handlebars-iron v0.25.2
[INFO] [stderr]   Downloaded iron-sessionstorage v0.6.6
[INFO] [stderr]   Downloaded fsevent-sys v0.1.6
[INFO] [stderr]   Downloaded inotify v0.2.3
[INFO] [stderr]   Downloaded fsevent v0.2.17
[INFO] [stderr]   Downloaded hmac v0.5.0
[INFO] [stderr]   Downloaded params v0.7.1
[INFO] [stderr]   Downloaded staticfile v0.4.0
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded pest v0.3.3
[INFO] [stderr]   Downloaded postgres v0.15.2
[INFO] [stderr]   Downloaded multipart v0.12.0
[INFO] [stderr]   Downloaded notify v3.0.1
[INFO] [stderr]   Downloaded handlebars v0.29.1
[INFO] [stderr]   Downloaded rusqlite v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd55db98b8422f49aeb06c2abe91ed7e52b91b9f9db88b19a1b36c9fda015c50
[INFO] running `Command { std: "docker" "start" "-a" "cd55db98b8422f49aeb06c2abe91ed7e52b91b9f9db88b19a1b36c9fda015c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd55db98b8422f49aeb06c2abe91ed7e52b91b9f9db88b19a1b36c9fda015c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd55db98b8422f49aeb06c2abe91ed7e52b91b9f9db88b19a1b36c9fda015c50", kill_on_drop: false }`
[INFO] [stdout] cd55db98b8422f49aeb06c2abe91ed7e52b91b9f9db88b19a1b36c9fda015c50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52de0a82ecc382aff9a61ddef992fd53d96db4825b0bd7dd789ce4bcd0fe7934
[INFO] running `Command { std: "docker" "start" "-a" "52de0a82ecc382aff9a61ddef992fd53d96db4825b0bd7dd789ce4bcd0fe7934", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/borrow.rs:180:30
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "52de0a82ecc382aff9a61ddef992fd53d96db4825b0bd7dd789ce4bcd0fe7934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52de0a82ecc382aff9a61ddef992fd53d96db4825b0bd7dd789ce4bcd0fe7934", kill_on_drop: false }`
[INFO] [stdout] 52de0a82ecc382aff9a61ddef992fd53d96db4825b0bd7dd789ce4bcd0fe7934
