[INFO] cloning repository https://github.com/egonik-unlp/glotaran_converter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/egonik-unlp/glotaran_converter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegonik-unlp%2Fglotaran_converter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegonik-unlp%2Fglotaran_converter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50ed752c9163d94a4555cec7b5cfc2bebf25455d
[INFO] testing egonik-unlp/glotaran_converter against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fegonik-unlp%2Fglotaran_converter" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/egonik-unlp/glotaran_converter on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/egonik-unlp/glotaran_converter
[INFO] finished tweaking git repo https://github.com/egonik-unlp/glotaran_converter
[INFO] tweaked toml for git repo https://github.com/egonik-unlp/glotaran_converter written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/egonik-unlp/glotaran_converter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f2f28ba95eb20ba842731dcf3907fb345757ed13a8c152b1ba9b33d05e34847
[INFO] running `Command { std: "docker" "start" "-a" "8f2f28ba95eb20ba842731dcf3907fb345757ed13a8c152b1ba9b33d05e34847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f2f28ba95eb20ba842731dcf3907fb345757ed13a8c152b1ba9b33d05e34847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2f28ba95eb20ba842731dcf3907fb345757ed13a8c152b1ba9b33d05e34847", kill_on_drop: false }`
[INFO] [stdout] 8f2f28ba95eb20ba842731dcf3907fb345757ed13a8c152b1ba9b33d05e34847
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ae9706f1e1dab449d35fd9fcf84afde25bae61cf7b7f5f5155aaea07ba54fcd
[INFO] running `Command { std: "docker" "start" "-a" "7ae9706f1e1dab449d35fd9fcf84afde25bae61cf7b7f5f5155aaea07ba54fcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.185
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling aho-corasick v1.0.4
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.3.6
[INFO] [stderr]    Compiling csv v1.2.2
[INFO] [stderr]    Compiling regex v1.9.3
[INFO] [stderr]    Compiling glotaran_converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `cell::RefCell` and `rc::Rc`
[INFO] [stdout]   --> src/main.rs:9:17
[INFO] [stdout]    |
[INFO] [stdout] 9  |     path::Path, cell::RefCell,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 10 |     rc::Rc
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `rdr` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let rdr = csv::ReaderBuilder::new()
[INFO] [stdout]    |         ^^^ not mutable
[INFO] [stdout] ...
[INFO] [stdout] 21 |     let headers = rdr
[INFO] [stdout]    |                   --- cannot borrow as mutable
[INFO] [stdout] ...
[INFO] [stdout] 32 |     for (n, record) in rdr.records().enumerate() {
[INFO] [stdout]    |                        --- cannot borrow as mutable
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut rdr = csv::ReaderBuilder::new()
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `rdr` as mutable more than once at a time
[INFO] [stdout]   --> src/main.rs:32:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let headers = rdr
[INFO] [stdout]    |                   --- first mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 32 |     for (n, record) in rdr.records().enumerate() {
[INFO] [stdout]    |                        ^^^ second mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 41 |     let headlines = headers.len();
[INFO] [stdout]    |                     ------- first borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0499, E0596.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glotaran_converter` (bin "glotaran_converter") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7ae9706f1e1dab449d35fd9fcf84afde25bae61cf7b7f5f5155aaea07ba54fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae9706f1e1dab449d35fd9fcf84afde25bae61cf7b7f5f5155aaea07ba54fcd", kill_on_drop: false }`
[INFO] [stdout] 7ae9706f1e1dab449d35fd9fcf84afde25bae61cf7b7f5f5155aaea07ba54fcd