[INFO] fetching crate checked_command 0.2.2...
[INFO] checking checked_command-0.2.2 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate checked_command 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate checked_command 0.2.2 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate checked_command 0.2.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate checked_command 0.2.2
[INFO] tweaked toml for crates.io crate checked_command 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae6507e7209c226c79c28276a1323572a059d4429473147f637ffc7d44caf8e9
[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" "ae6507e7209c226c79c28276a1323572a059d4429473147f637ffc7d44caf8e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae6507e7209c226c79c28276a1323572a059d4429473147f637ffc7d44caf8e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae6507e7209c226c79c28276a1323572a059d4429473147f637ffc7d44caf8e9", kill_on_drop: false }`
[INFO] [stdout] ae6507e7209c226c79c28276a1323572a059d4429473147f637ffc7d44caf8e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5bf3c39b008396ee50425cf5aab579833c4c7574d03a9f7cc0e871bd43e5e1c
[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" "c5bf3c39b008396ee50425cf5aab579833c4c7574d03a9f7cc0e871bd43e5e1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling checked_command v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ext.rs:420:45
[INFO] [stdout]     |
[INFO] [stdout] 420 |             assert_debugstr_eq(&ioerr() as &StdError, err.cause().unwrap());
[INFO] [stdout]     |                                             ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]    --> src/ext.rs:420:59
[INFO] [stdout]     |
[INFO] [stdout] 420 |             assert_debugstr_eq(&ioerr() as &StdError, err.cause().unwrap());
[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/ext.rs:426:38
[INFO] [stdout]     |
[INFO] [stdout] 426 |             let desc: String = ioerr.description().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/ext.rs:427:48
[INFO] [stdout]     |
[INFO] [stdout] 427 |             let got: String = Error::Io(ioerr).description().into();
[INFO] [stdout]     |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c5bf3c39b008396ee50425cf5aab579833c4c7574d03a9f7cc0e871bd43e5e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5bf3c39b008396ee50425cf5aab579833c4c7574d03a9f7cc0e871bd43e5e1c", kill_on_drop: false }`
[INFO] [stdout] c5bf3c39b008396ee50425cf5aab579833c4c7574d03a9f7cc0e871bd43e5e1c