[INFO] updating cached repository https://github.com/NicholasLYang/saber
[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] 06c9897f0c0733c3a62ba39f70ac4a82e9ea1658
[INFO] testing NicholasLYang/saber against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NicholasLYang/saber on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/NicholasLYang/saber
[INFO] finished tweaking git repo https://github.com/NicholasLYang/saber
[INFO] tweaked toml for git repo https://github.com/NicholasLYang/saber written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/NicholasLYang/saber already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 5b01f328d3aa4b275b0453a0b8588330f0f2e1790c5b22d72e8fb74ec3b79b89
[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" "5b01f328d3aa4b275b0453a0b8588330f0f2e1790c5b22d72e8fb74ec3b79b89"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling strum v0.13.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling im v13.0.0
[INFO] [stderr]    Compiling sized-chunks v0.3.1
[INFO] [stderr]    Compiling bimap v0.4.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling strum_macros v0.13.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling saber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `peek`
[INFO] [stderr]    --> src/lexer.rs:213:5
[INFO] [stderr]     |
[INFO] [stderr] 213 |     fn peek(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek`
[INFO] [stderr]    --> src/parser.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn peek(&mut self) -> Result<(), ParseError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotImplemented`
[INFO] [stderr]   --> src/typechecker.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     NotImplemented { location: LocationRange },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `"docker" "inspect" "5b01f328d3aa4b275b0453a0b8588330f0f2e1790c5b22d72e8fb74ec3b79b89"`
[INFO] running `"docker" "rm" "-f" "5b01f328d3aa4b275b0453a0b8588330f0f2e1790c5b22d72e8fb74ec3b79b89"`
[INFO] [stdout] 5b01f328d3aa4b275b0453a0b8588330f0f2e1790c5b22d72e8fb74ec3b79b89
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f9d5bd95a701ffcf4824efe1a635cfe476b21137c79cea46c1041f3ddba979b6
[INFO] running `"docker" "start" "-a" "f9d5bd95a701ffcf4824efe1a635cfe476b21137c79cea46c1041f3ddba979b6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling saber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/parser.rs:1018:22
[INFO] [stderr]      |
[INFO] [stderr] 1018 |                 Some(TypeSig::Name(2)),
[INFO] [stderr]      |                      ^^^^^^^^^^^^^^^^ expected struct `ast::Loc`, found enum `ast::TypeSig`
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected struct `ast::Loc<ast::TypeSig>`
[INFO] [stderr]                   found enum `ast::TypeSig`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/parser.rs:1030:22
[INFO] [stderr]      |
[INFO] [stderr] 1030 |                 Some(TypeSig::Name(3)),
[INFO] [stderr]      |                      ^^^^^^^^^^^^^^^^ expected struct `ast::Loc`, found enum `ast::TypeSig`
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected struct `ast::Loc<ast::TypeSig>`
[INFO] [stderr]                   found enum `ast::TypeSig`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/parser.rs:1082:37
[INFO] [stderr]      |
[INFO] [stderr] 1082 | ...                   op: Op::Minus,
[INFO] [stderr]      |                           ^^^^^^^^^ expected enum `ast::UnaryOp`, found enum `ast::Op`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/parser.rs:1111:28
[INFO] [stderr]      |
[INFO] [stderr] 1111 |                       inner: Stmt::Return(Loc {
[INFO] [stderr]      |  ____________________________^
[INFO] [stderr] 1112 | |                         location: LocationRange(Location(1, 7), Location(1, 12)),
[INFO] [stderr] 1113 | |                         inner: Expr::BinOp {
[INFO] [stderr] 1114 | |                             op: Op::Plus,
[INFO] [stderr] ...    |
[INFO] [stderr] 1125 | |                         },
[INFO] [stderr] 1126 | |                     }),
[INFO] [stderr]      | |______________________^ expected enum `ast::Expr`, found enum `ast::Stmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `saber`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f9d5bd95a701ffcf4824efe1a635cfe476b21137c79cea46c1041f3ddba979b6"`
[INFO] running `"docker" "rm" "-f" "f9d5bd95a701ffcf4824efe1a635cfe476b21137c79cea46c1041f3ddba979b6"`
[INFO] [stdout] f9d5bd95a701ffcf4824efe1a635cfe476b21137c79cea46c1041f3ddba979b6