[INFO] cloning repository https://github.com/Takamichi-tsutsumi/monkey-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Takamichi-tsutsumi/monkey-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTakamichi-tsutsumi%2Fmonkey-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTakamichi-tsutsumi%2Fmonkey-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e463a22618dca1dd8de1cbe4eaf50d6d62bde58
[INFO] checking Takamichi-tsutsumi/monkey-rust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTakamichi-tsutsumi%2Fmonkey-rust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Takamichi-tsutsumi/monkey-rust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Takamichi-tsutsumi/monkey-rust
[INFO] finished tweaking git repo https://github.com/Takamichi-tsutsumi/monkey-rust
[INFO] tweaked toml for git repo https://github.com/Takamichi-tsutsumi/monkey-rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Takamichi-tsutsumi/monkey-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a20d18b7f9bf889fda331dffecd5f66f70de047496724f648fa62d8ebcaed29b
[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" "a20d18b7f9bf889fda331dffecd5f66f70de047496724f648fa62d8ebcaed29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a20d18b7f9bf889fda331dffecd5f66f70de047496724f648fa62d8ebcaed29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20d18b7f9bf889fda331dffecd5f66f70de047496724f648fa62d8ebcaed29b", kill_on_drop: false }`
[INFO] [stdout] a20d18b7f9bf889fda331dffecd5f66f70de047496724f648fa62d8ebcaed29b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3552ca7cab805a1b2b42a753222ca3c3a9a3a1cbf666ff80f2b8a69c5859c553
[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" "3552ca7cab805a1b2b42a753222ca3c3a9a3a1cbf666ff80f2b8a69c5859c553", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the type `String` cannot be indexed by `usize`
[INFO] [stdout]   --> lib/lexer.rs:24:24
[INFO] [stdout]    |
[INFO] [stdout] 24 |             self.chr = self.input[self.read_position];
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `String` cannot be indexed by `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Index<usize>` is not implemented for `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monkey`
[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] error[E0277]: the type `String` cannot be indexed by `usize`
[INFO] [stdout]   --> lib/lexer.rs:24:24
[INFO] [stdout]    |
[INFO] [stdout] 24 |             self.chr = self.input[self.read_position];
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `String` cannot be indexed by `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Index<usize>` is not implemented for `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3552ca7cab805a1b2b42a753222ca3c3a9a3a1cbf666ff80f2b8a69c5859c553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3552ca7cab805a1b2b42a753222ca3c3a9a3a1cbf666ff80f2b8a69c5859c553", kill_on_drop: false }`
[INFO] [stdout] 3552ca7cab805a1b2b42a753222ca3c3a9a3a1cbf666ff80f2b8a69c5859c553