[INFO] fetching crate mut_static 5.0.0...
[INFO] checking mut_static-5.0.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate mut_static 5.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mut_static 5.0.0 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mut_static 5.0.0
[INFO] finished tweaking crates.io crate mut_static 5.0.0
[INFO] tweaked toml for crates.io crate mut_static 5.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b163870574c3a6c201e2573bf6f0afc4704695840e98fdb690da70cc2ae577f
[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" "2b163870574c3a6c201e2573bf6f0afc4704695840e98fdb690da70cc2ae577f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b163870574c3a6c201e2573bf6f0afc4704695840e98fdb690da70cc2ae577f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b163870574c3a6c201e2573bf6f0afc4704695840e98fdb690da70cc2ae577f", kill_on_drop: false }`
[INFO] [stdout] 2b163870574c3a6c201e2573bf6f0afc4704695840e98fdb690da70cc2ae577f
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8da21370e41b716dc4cd94ec964eb98066a303d3da2b5e6496afaa7d8f249ca6
[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" "8da21370e41b716dc4cd94ec964eb98066a303d3da2b5e6496afaa7d8f249ca6", kill_on_drop: false }`
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking mut_static v5.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:34:56
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Err(err) => Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:46:56
[INFO] [stdout]    |
[INFO] [stdout] 46 |             Err(err) => Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:34:56
[INFO] [stdout]    |
[INFO] [stdout] 34 |             Err(err) => Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:54:67
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 Err(err) => return Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:74:56
[INFO] [stdout]    |
[INFO] [stdout] 74 |             Err(err) => Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:46:56
[INFO] [stdout]    |
[INFO] [stdout] 46 |             Err(err) => Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:54:67
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 Err(err) => return Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mut_static.rs:74:56
[INFO] [stdout]    |
[INFO] [stdout] 74 |             Err(err) => Err(ErrorKind::PoisonError(err.description().to_string(), format!("{}", err)).into()),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/test/mod.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         mem::replace(test_obj.deref_mut(), TestStruct::new(2));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "8da21370e41b716dc4cd94ec964eb98066a303d3da2b5e6496afaa7d8f249ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da21370e41b716dc4cd94ec964eb98066a303d3da2b5e6496afaa7d8f249ca6", kill_on_drop: false }`
[INFO] [stdout] 8da21370e41b716dc4cd94ec964eb98066a303d3da2b5e6496afaa7d8f249ca6