[INFO] updating cached repository https://github.com/andyyu2004/rust_lambda_calculus
[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] 0338fcf8342bbbfc079270004d4bd93960520f56
[INFO] checking andyyu2004/rust_lambda_calculus against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandyyu2004%2Frust_lambda_calculus" "/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/andyyu2004/rust_lambda_calculus on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/andyyu2004/rust_lambda_calculus
[INFO] finished tweaking git repo https://github.com/andyyu2004/rust_lambda_calculus
[INFO] tweaked toml for git repo https://github.com/andyyu2004/rust_lambda_calculus written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/andyyu2004/rust_lambda_calculus already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] e31afcb5ea90e2ae22165d9f0f0cb1b1f931bc597192aae12198c55344d8d6dc
[INFO] running `"docker" "start" "-a" "e31afcb5ea90e2ae22165d9f0f0cb1b1f931bc597192aae12198c55344d8d6dc"`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking log v0.4.7
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking dirs v2.0.1
[INFO] [stderr]     Checking rustyline v5.0.0
[INFO] [stderr]     Checking r_lambda_calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexing/lexer.rs:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 'a'...'z' => tokens.push(
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexing/lexer.rs:48:26
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 '$' | 'A'...'Z' => {
[INFO] [stderr]    |                          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexing/lexer.rs:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 'a'...'z' => tokens.push(
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexing/lexer.rs:48:26
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 '$' | 'A'...'Z' => {
[INFO] [stderr]    |                          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.31s
[INFO] running `"docker" "inspect" "e31afcb5ea90e2ae22165d9f0f0cb1b1f931bc597192aae12198c55344d8d6dc"`
[INFO] running `"docker" "rm" "-f" "e31afcb5ea90e2ae22165d9f0f0cb1b1f931bc597192aae12198c55344d8d6dc"`
[INFO] [stdout] e31afcb5ea90e2ae22165d9f0f0cb1b1f931bc597192aae12198c55344d8d6dc