[INFO] cloning repository https://github.com/NicholasLYang/saber
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NicholasLYang/saber" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84218e8770621c0f32ed03261314ce5f8c728a97
[INFO] checking NicholasLYang/saber against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NicholasLYang/saber on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-3/source/Cargo.toml
[INFO] crate git repo https://github.com/NicholasLYang/saber already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9d73ac858b853701bad6f0f3be9c13e6401b9d7ac16dd36b7d3322c408bce99
[INFO] running `Command { std: "docker" "start" "-a" "e9d73ac858b853701bad6f0f3be9c13e6401b9d7ac16dd36b7d3322c408bce99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9d73ac858b853701bad6f0f3be9c13e6401b9d7ac16dd36b7d3322c408bce99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9d73ac858b853701bad6f0f3be9c13e6401b9d7ac16dd36b7d3322c408bce99", kill_on_drop: false }`
[INFO] [stdout] e9d73ac858b853701bad6f0f3be9c13e6401b9d7ac16dd36b7d3322c408bce99
[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" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f0611f64c3a69a451dd5f4666dfa66ed5d1b2e0f267bd20dabb1ade989f7ea4
[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" "2f0611f64c3a69a451dd5f4666dfa66ed5d1b2e0f267bd20dabb1ade989f7ea4", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking strum v0.13.0
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling im v13.0.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking sized-chunks v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling strum_macros v0.13.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking saber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `ast`
[INFO] [stdout]     --> src/parser.rs:1221:9
[INFO] [stdout]      |
[INFO] [stdout] 1221 |     use ast::{Expr, Loc, Op, Pat, Stmt, TypeSig, Value};
[INFO] [stdout]      |         ^^^ help: a similar path exists: `crate::ast`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `lexer`
[INFO] [stdout]     --> src/parser.rs:1222:9
[INFO] [stdout]      |
[INFO] [stdout] 1222 |     use lexer::{Lexer, Location, LocationRange};
[INFO] [stdout]      |         ^^^^^ help: a similar path exists: `crate::lexer`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `parser`
[INFO] [stdout]     --> src/parser.rs:1223:9
[INFO] [stdout]      |
[INFO] [stdout] 1223 |     use parser::{ParseError, Parser};
[INFO] [stdout]      |         ^^^^^^ help: a similar path exists: `crate::parser`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `use` statements changed in Rust 2018; read more at <https://doc.rust-lang.org/edition-guide/rust-2018/module-system/path-clarity.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PRINT_INT_INDEX`, `PRINT_STRING_INDEX`
[INFO] [stdout]  --> src/code_generator.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     PRINT_INT_INDEX, PRINT_STRING_INDEX, STREQ_INDEX,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PRINT_INT_INDEX`, `PRINT_STRING_INDEX`
[INFO] [stdout]  --> src/code_generator.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     PRINT_INT_INDEX, PRINT_STRING_INDEX, STREQ_INDEX,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `saber`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2f0611f64c3a69a451dd5f4666dfa66ed5d1b2e0f267bd20dabb1ade989f7ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0611f64c3a69a451dd5f4666dfa66ed5d1b2e0f267bd20dabb1ade989f7ea4", kill_on_drop: false }`
[INFO] [stdout] 2f0611f64c3a69a451dd5f4666dfa66ed5d1b2e0f267bd20dabb1ade989f7ea4
