[INFO] cloning repository https://github.com/azaleacolburn/chording
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/azaleacolburn/chording" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaleacolburn%2Fchording", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaleacolburn%2Fchording'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2059081c4028345239525da88ff2a6bd10de567e
[INFO] fixing azaleacolburn/chording against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazaleacolburn%2Fchording" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/azaleacolburn/chording
[INFO] finished tweaking git repo https://github.com/azaleacolburn/chording
[INFO] tweaked toml for git repo https://github.com/azaleacolburn/chording written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/azaleacolburn/chording on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/azaleacolburn/chording 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf
[INFO] running `Command { std: "docker" "start" "4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]     Checking chording v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0609]: no field `nth` on type `&str`
[INFO] [stdout]   --> src/chord.rs:74:46
[INFO] [stdout]    |
[INFO] [stdout] 74 |         self.find_node(i, |string, i| string.nth)
[INFO] [stdout]    |                                              ^^^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/chord.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn split(&mut self, i: usize) -> Node {
[INFO] [stdout]    |                                      ---- expected `Node` because of return type
[INFO] [stdout] 74 |         self.find_node(i, |string, i| string.nth)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Node`, found `Option<_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Node`
[INFO] [stdout]               found enum `Option<_>`
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `Option<_>` value, panicking if the value is an `Option::None`
[INFO] [stdout]    |
[INFO] [stdout] 74 |         self.find_node(i, |string, i| string.nth).expect("REASON")
[INFO] [stdout]    |                                                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/chord.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn insert_char_at(&mut self, c: char, i: usize) {}
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/chord.rs:79:43
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn insert_char_at(&mut self, c: char, i: usize) {}
[INFO] [stdout]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chording` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0609]: no field `nth` on type `&str`
[INFO] [stdout]   --> src/chord.rs:74:46
[INFO] [stdout]    |
[INFO] [stdout] 74 |         self.find_node(i, |string, i| string.nth)
[INFO] [stdout]    |                                              ^^^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/chord.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn split(&mut self, i: usize) -> Node {
[INFO] [stdout]    |                                      ---- expected `Node` because of return type
[INFO] [stdout] 74 |         self.find_node(i, |string, i| string.nth)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Node`, found `Option<_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Node`
[INFO] [stdout]               found enum `Option<_>`
[INFO] [stdout] help: consider using `Option::expect` to unwrap the `Option<_>` value, panicking if the value is an `Option::None`
[INFO] [stdout]    |
[INFO] [stdout] 74 |         self.find_node(i, |string, i| string.nth).expect("REASON")
[INFO] [stdout]    |                                                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/chord.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn insert_char_at(&mut self, c: char, i: usize) {}
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/chord.rs:79:43
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn insert_char_at(&mut self, c: char, i: usize) {}
[INFO] [stdout]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chording` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf", kill_on_drop: false }`
[INFO] [stdout] 4add70ff09f01fa68a6ecf0212839c27838b47c2aa84e858498cfd4e403d49cf
