[INFO] cloning repository https://github.com/samarthsushi/mongorph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samarthsushi/mongorph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamarthsushi%2Fmongorph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamarthsushi%2Fmongorph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dbe569f7712bafd0addfc614aedbdc12c56ce98
[INFO] checking samarthsushi/mongorph against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamarthsushi%2Fmongorph" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samarthsushi/mongorph
[INFO] finished tweaking git repo https://github.com/samarthsushi/mongorph
[INFO] tweaked toml for git repo https://github.com/samarthsushi/mongorph written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samarthsushi/mongorph on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samarthsushi/mongorph 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7abfa9cbe793aca0abfa68fdcf7dc768b389515f68a5f0dc67e4454a504d208f
[INFO] running `Command { std: "docker" "start" "-a" "7abfa9cbe793aca0abfa68fdcf7dc768b389515f68a5f0dc67e4454a504d208f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7abfa9cbe793aca0abfa68fdcf7dc768b389515f68a5f0dc67e4454a504d208f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7abfa9cbe793aca0abfa68fdcf7dc768b389515f68a5f0dc67e4454a504d208f", kill_on_drop: false }`
[INFO] [stdout] 7abfa9cbe793aca0abfa68fdcf7dc768b389515f68a5f0dc67e4454a504d208f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f2cec91c9b607c86c3c06413d81c653ee438a53056e6d37e2b4ee24c33db908
[INFO] running `Command { std: "docker" "start" "-a" "7f2cec91c9b607c86c3c06413d81c653ee438a53056e6d37e2b4ee24c33db908", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking mongorph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::Peekable`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Peekable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Peekable`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Peekable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:249:48
[INFO] [stdout]     |
[INFO] [stdout] 249 |             Some(Token{ ty: TokenT::OpenParen, idx}) => {
[INFO] [stdout]     |                                                ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:298:67
[INFO] [stdout]     |
[INFO] [stdout] 298 |             Some(Token {ty: TokenT::ConditionalOperator(cond_op), idx}) => cond_op,
[INFO] [stdout]     |                                                                   ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:303:48
[INFO] [stdout]     |
[INFO] [stdout] 303 |             Some(Token {ty: TokenT::OpenParen, idx}) => {}
[INFO] [stdout]     |                                                ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:359:57
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     Some(Token{ ty: TokenT::CloseParen, idx}) => {
[INFO] [stdout]     |                                                         ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:249:48
[INFO] [stdout]     |
[INFO] [stdout] 249 |             Some(Token{ ty: TokenT::OpenParen, idx}) => {
[INFO] [stdout]     |                                                ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:298:67
[INFO] [stdout]     |
[INFO] [stdout] 298 |             Some(Token {ty: TokenT::ConditionalOperator(cond_op), idx}) => cond_op,
[INFO] [stdout]     |                                                                   ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:303:48
[INFO] [stdout]     |
[INFO] [stdout] 303 |             Some(Token {ty: TokenT::OpenParen, idx}) => {}
[INFO] [stdout]     |                                                ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:359:57
[INFO] [stdout]     |
[INFO] [stdout] 359 |                     Some(Token{ ty: TokenT::CloseParen, idx}) => {
[INFO] [stdout]     |                                                         ^^^ help: try ignoring the field: `idx: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `Command { std: "docker" "inspect" "7f2cec91c9b607c86c3c06413d81c653ee438a53056e6d37e2b4ee24c33db908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f2cec91c9b607c86c3c06413d81c653ee438a53056e6d37e2b4ee24c33db908", kill_on_drop: false }`
[INFO] [stdout] 7f2cec91c9b607c86c3c06413d81c653ee438a53056e6d37e2b4ee24c33db908