[INFO] cloning repository https://github.com/alexanderkyte/etiquette
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexanderkyte/etiquette" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderkyte%2Fetiquette", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderkyte%2Fetiquette'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54ab2c78e874c1f30b0fdcf0dbd29cc8c8a31f80
[INFO] checking alexanderkyte/etiquette against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexanderkyte%2Fetiquette" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexanderkyte/etiquette on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexanderkyte/etiquette
[INFO] finished tweaking git repo https://github.com/alexanderkyte/etiquette
[INFO] tweaked toml for git repo https://github.com/alexanderkyte/etiquette written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/alexanderkyte/etiquette already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9b14eacefc6627aa813456d3eaed48f2b3554cdd5b5a1f5a6c5a3433ab22151
[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" "c9b14eacefc6627aa813456d3eaed48f2b3554cdd5b5a1f5a6c5a3433ab22151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9b14eacefc6627aa813456d3eaed48f2b3554cdd5b5a1f5a6c5a3433ab22151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b14eacefc6627aa813456d3eaed48f2b3554cdd5b5a1f5a6c5a3433ab22151", kill_on_drop: false }`
[INFO] [stdout] c9b14eacefc6627aa813456d3eaed48f2b3554cdd5b5a1f5a6c5a3433ab22151
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d2edfd744e5db60562ecb709357f357572b100126c18b852453424a806f40d8
[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" "6d2edfd744e5db60562ecb709357f357572b100126c18b852453424a806f40d8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking code-aware-c v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/compilation_db.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 directory: try!(decoder.read_struct_field("directory", 0, |decoder| Decodable::decode(decoder))),
[INFO] [stdout]    |                            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/compilation_db.rs:16:26
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 command: try!(decoder.read_struct_field("command", 0, |decoder| Decodable::decode(decoder))),
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/compilation_db.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 file: try!(decoder.read_struct_field("file", 0, |decoder| Decodable::decode(decoder)))
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/compilation_db.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 directory: try!(decoder.read_struct_field("directory", 0, |decoder| Decodable::decode(decoder))),
[INFO] [stdout]    |                            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/compilation_db.rs:16:26
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 command: try!(decoder.read_struct_field("command", 0, |decoder| Decodable::decode(decoder))),
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/compilation_db.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 file: try!(decoder.read_struct_field("file", 0, |decoder| Decodable::decode(decoder)))
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/cli_args.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Err(f) => { panic!(f.to_string()) }
[INFO] [stdout]    |                            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Err(f) => { panic!("{}", f.to_string()) }
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Err(f) => { std::panic::panic_any(f.to_string()) }
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/cli_args.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Err(f) => { panic!(f.to_string()) }
[INFO] [stdout]    |                            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Err(f) => { panic!("{}", f.to_string()) }
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 20 |         Err(f) => { std::panic::panic_any(f.to_string()) }
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "6d2edfd744e5db60562ecb709357f357572b100126c18b852453424a806f40d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2edfd744e5db60562ecb709357f357572b100126c18b852453424a806f40d8", kill_on_drop: false }`
[INFO] [stdout] 6d2edfd744e5db60562ecb709357f357572b100126c18b852453424a806f40d8