[INFO] updating cached repository https://github.com/birkenfeld/kenken-rs
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c8dc0d83bfba928d088170c452a8483fa8b8295
[INFO] checking birkenfeld/kenken-rs against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirkenfeld%2Fkenken-rs" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/birkenfeld/kenken-rs on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/birkenfeld/kenken-rs
[INFO] finished tweaking git repo https://github.com/birkenfeld/kenken-rs
[INFO] tweaked toml for git repo https://github.com/birkenfeld/kenken-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/birkenfeld/kenken-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5883bbc42f29cbc3192b29f8fbb8862d9892aeab0096e4031203aafadb1be34a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5883bbc42f29cbc3192b29f8fbb8862d9892aeab0096e4031203aafadb1be34a"`
[INFO] [stderr]     Checking kenken v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/helpers.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             try!(f.write_str(&sep));
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/helpers.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 try!(write!(f, "| {} ", cell));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/helpers.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(f.write_str("|\n"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/constraints.rs:230:13
[INFO] [stderr]     |
[INFO] [stderr] 230 |             try!(f.write_str(&sep));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/constraints.rs:232:17
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 try!(write!(f, "| {0:1$} ", cell, size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/constraints.rs:234:13
[INFO] [stderr]     |
[INFO] [stderr] 234 |             try!(f.write_str("|\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:54:20
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let file = try!(File::open(filename));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:65:24
[INFO] [stderr]    |
[INFO] [stderr] 65 |             let line = try!(line);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:87:24
[INFO] [stderr]    |
[INFO] [stderr] 87 |             let line = try!(line);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:95:23
[INFO] [stderr]    |
[INFO] [stderr] 95 |             let key = try!(parts[0].chars().nth(0).ok_or("missing char before :"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:99:24
[INFO] [stderr]    |
[INFO] [stderr] 99 |             let cage = try!(cells.get_mut(&key).ok_or(format!("reference to undefined cell {}", key)));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:101:24
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let goal = try!(parts[1][..i-1].parse()
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:51
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn load(filename: &str) -> Result<KenKen, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/helpers.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             try!(f.write_str(&sep));
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/helpers.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 try!(write!(f, "| {} ", cell));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/helpers.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             try!(f.write_str("|\n"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/constraints.rs:230:13
[INFO] [stderr]     |
[INFO] [stderr] 230 |             try!(f.write_str(&sep));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/constraints.rs:232:17
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 try!(write!(f, "| {0:1$} ", cell, size));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/constraints.rs:234:13
[INFO] [stderr]     |
[INFO] [stderr] 234 |             try!(f.write_str("|\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:54:20
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let file = try!(File::open(filename));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:65:24
[INFO] [stderr]    |
[INFO] [stderr] 65 |             let line = try!(line);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:87:24
[INFO] [stderr]    |
[INFO] [stderr] 87 |             let line = try!(line);
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:95:23
[INFO] [stderr]    |
[INFO] [stderr] 95 |             let key = try!(parts[0].chars().nth(0).ok_or("missing char before :"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:99:24
[INFO] [stderr]    |
[INFO] [stderr] 99 |             let cage = try!(cells.get_mut(&key).ok_or(format!("reference to undefined cell {}", key)));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:101:24
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let goal = try!(parts[1][..i-1].parse()
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:51
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn load(filename: &str) -> Result<KenKen, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "5883bbc42f29cbc3192b29f8fbb8862d9892aeab0096e4031203aafadb1be34a"`
[INFO] running `"docker" "rm" "-f" "5883bbc42f29cbc3192b29f8fbb8862d9892aeab0096e4031203aafadb1be34a"`
[INFO] [stdout] 5883bbc42f29cbc3192b29f8fbb8862d9892aeab0096e4031203aafadb1be34a