[INFO] updating cached repository https://github.com/traxys/lore
[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] 70aec5648f1bc3b51fe9a3ec647b16f28fc1cc2a
[INFO] checking traxys/lore against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftraxys%2Flore" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/traxys/lore on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/traxys/lore
[INFO] finished tweaking git repo https://github.com/traxys/lore
[INFO] tweaked toml for git repo https://github.com/traxys/lore written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/traxys/lore already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] ebda08b99f4edce0cd036271a43e926460158a5d7a4b54479e385601ad16c6eb
[INFO] running `"docker" "start" "-a" "ebda08b99f4edce0cd036271a43e926460158a5d7a4b54479e385601ad16c6eb"`
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking joinery v2.0.0
[INFO] [stderr]     Checking lalrpop-util v0.17.2
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling inventory-impl v0.1.4
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling paste-impl v0.1.6
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking inventory v0.1.4
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking rustyline v5.0.4
[INFO] [stderr]     Checking paste v0.1.6
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling pyo3cls v0.8.3
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling pyo3 v0.8.3
[INFO] [stderr]    Compiling lore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Term`
[INFO] [stderr]  --> src/main.rs:8:32
[INFO] [stderr]   |
[INFO] [stderr] 8 | use expressions::{LogicalExpr, Term};
[INFO] [stderr]   |                                ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/lore-1f638af25839a29c/out/syntax.rs:6728:5
[INFO] [stderr]      |
[INFO] [stderr] 6728 |     (__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/lore-1f638af25839a29c/out/syntax.rs:6739:5
[INFO] [stderr]      |
[INFO] [stderr] 6739 |     (__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/lore-1f638af25839a29c/out/syntax.rs:6750:5
[INFO] [stderr]      |
[INFO] [stderr] 6750 |     (__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/lore-1f638af25839a29c/out/syntax.rs:7203:5
[INFO] [stderr]      |
[INFO] [stderr] 7203 |     (__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/lore-1f638af25839a29c/out/syntax.rs:7261:5
[INFO] [stderr]      |
[INFO] [stderr] 7261 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Term`
[INFO] [stderr]  --> src/main.rs:8:32
[INFO] [stderr]   |
[INFO] [stderr] 8 | use expressions::{LogicalExpr, Term};
[INFO] [stderr]   |                                ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/lore-1f638af25839a29c/out/syntax.rs:6728:5
[INFO] [stderr]      |
[INFO] [stderr] 6728 |     (__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/lore-1f638af25839a29c/out/syntax.rs:6739:5
[INFO] [stderr]      |
[INFO] [stderr] 6739 |     (__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/lore-1f638af25839a29c/out/syntax.rs:6750:5
[INFO] [stderr]      |
[INFO] [stderr] 6750 |     (__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/lore-1f638af25839a29c/out/syntax.rs:7203:5
[INFO] [stderr]      |
[INFO] [stderr] 7203 |     (__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/lore-1f638af25839a29c/out/syntax.rs:7261:5
[INFO] [stderr]      |
[INFO] [stderr] 7261 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 46s
[INFO] running `"docker" "inspect" "ebda08b99f4edce0cd036271a43e926460158a5d7a4b54479e385601ad16c6eb"`
[INFO] running `"docker" "rm" "-f" "ebda08b99f4edce0cd036271a43e926460158a5d7a4b54479e385601ad16c6eb"`
[INFO] [stdout] ebda08b99f4edce0cd036271a43e926460158a5d7a4b54479e385601ad16c6eb