[INFO] updating cached repository https://github.com/ftilde/ugdb
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/ftilde/ugdb
[INFO] [stderr]    7870c69..5f69d93  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f69d9322cecae097f6d50995fe05ce9a25f9d5b
[INFO] checking ftilde/ugdb against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fugdb" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ftilde/ugdb on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ftilde/ugdb
[INFO] finished tweaking git repo https://github.com/ftilde/ugdb
[INFO] tweaked toml for git repo https://github.com/ftilde/ugdb written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ftilde/ugdb already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e28cef1d763f1eb9543936f593e66520694630e4be1f4f23b3149903ee6fad7
[INFO] running `"docker" "start" "-a" "4e28cef1d763f1eb9543936f593e66520694630e4be1f4f23b3149903ee6fad7"`
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling ndarray v0.8.4
[INFO] [stderr]     Checking smallvec v0.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling plist v0.2.4
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking lalrpop-util v0.16.3
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling onig_sys v68.2.1
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]     Checking nix v0.13.1
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking flate2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]     Checking nix v0.7.0
[INFO] [stderr]     Checking chan v0.1.23
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling string_cache v0.7.4
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking chan-signal v0.3.3
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking flexi_logger v0.11.5
[INFO] [stderr]     Checking raw_tty v0.1.0
[INFO] [stderr]     Checking onig v3.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking unsegen v0.2.2
[INFO] [stderr]     Checking unsegen_jsonviewer v0.2.0
[INFO] [stderr]     Checking unsegen_terminal v0.2.0
[INFO] [stderr]     Checking unsegen_signals v0.2.0
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking bincode v1.2.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]     Checking syntect v2.1.0
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]     Checking unsegen_pager v0.2.0
[INFO] [stderr]    Compiling ugdb v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2134:5
[INFO] [stderr]      |
[INFO] [stderr] 2134 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2240:5
[INFO] [stderr]      |
[INFO] [stderr] 2240 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2248:5
[INFO] [stderr]      |
[INFO] [stderr] 2248 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2292:5
[INFO] [stderr]      |
[INFO] [stderr] 2292 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2318:5
[INFO] [stderr]      |
[INFO] [stderr] 2318 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2134:5
[INFO] [stderr]      |
[INFO] [stderr] 2134 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2240:5
[INFO] [stderr]      |
[INFO] [stderr] 2240 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2248:5
[INFO] [stderr]      |
[INFO] [stderr] 2248 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2292:5
[INFO] [stderr]      |
[INFO] [stderr] 2292 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/ugdb-39c34a7331a4d66f/out/gdb_expression_parsing/parser.rs:2318:5
[INFO] [stderr]      |
[INFO] [stderr] 2318 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/gdbmi/commands.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 .map_err(|e| e.description().to_string())?;
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/gdbmi/commands.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 .map_err(|e| e.description().to_string())?;
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/gdbmi/commands.rs:54:33
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 Err(e) => Err(e.description().to_string()),
[INFO] [stderr]    |                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/gdbmi/commands.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 .map_err(|e| e.description().to_string())?;
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/gdbmi/commands.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 .map_err(|e| e.description().to_string())?;
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/gdbmi/commands.rs:54:33
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 Err(e) => Err(e.description().to_string()),
[INFO] [stderr]    |                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 30s
[INFO] running `"docker" "inspect" "4e28cef1d763f1eb9543936f593e66520694630e4be1f4f23b3149903ee6fad7"`
[INFO] running `"docker" "rm" "-f" "4e28cef1d763f1eb9543936f593e66520694630e4be1f4f23b3149903ee6fad7"`
[INFO] [stdout] 4e28cef1d763f1eb9543936f593e66520694630e4be1f4f23b3149903ee6fad7