[INFO] fetching crate nessie-lex 0.1.5...
[INFO] checking nessie-lex-0.1.5 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate nessie-lex 0.1.5 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate nessie-lex 0.1.5 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nessie-lex 0.1.5
[INFO] finished tweaking crates.io crate nessie-lex 0.1.5
[INFO] tweaked toml for crates.io crate nessie-lex 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef4e12f3e2654907176a6f5f366f4418014d1f6114dc99e07963fb6f44e28166
[INFO] running `Command { std: "docker" "start" "-a" "ef4e12f3e2654907176a6f5f366f4418014d1f6114dc99e07963fb6f44e28166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef4e12f3e2654907176a6f5f366f4418014d1f6114dc99e07963fb6f44e28166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef4e12f3e2654907176a6f5f366f4418014d1f6114dc99e07963fb6f44e28166", kill_on_drop: false }`
[INFO] [stdout] ef4e12f3e2654907176a6f5f366f4418014d1f6114dc99e07963fb6f44e28166
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dee9aed2f1048ea669509feda308fad951b57cd0bbb6ccaa9f0e25ad52664abc
[INFO] running `Command { std: "docker" "start" "-a" "dee9aed2f1048ea669509feda308fad951b57cd0bbb6ccaa9f0e25ad52664abc", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]    Compiling nessie-lex-proc-macros v0.1.1
[INFO] [stderr]     Checking nessie-lex v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `newline`
[INFO] [stdout]   --> src/token.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn create(newline: crate::token::NewLine) -> Option<Self> {
[INFO] [stdout]    |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newline`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/lex.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let start = self.index;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/lex.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let end = self.index;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/lex.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 Err(error) => Error::UnterminatedString.into(),
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling assert2-macros v0.3.15
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stderr]     Checking assert2 v0.3.15
[INFO] [stdout] warning: unused import: `check`
[INFO] [stdout]    --> src/lex.rs:311:27
[INFO] [stdout]     |
[INFO] [stdout] 311 |     use assert2::{assert, check};
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newline`
[INFO] [stdout]   --> src/token.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn create(newline: crate::token::NewLine) -> Option<Self> {
[INFO] [stdout]    |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newline`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/lex.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let start = self.index;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end`
[INFO] [stdout]    --> src/lex.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let end = self.index;
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/lex.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                 Err(error) => Error::UnterminatedString.into(),
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `Command { std: "docker" "inspect" "dee9aed2f1048ea669509feda308fad951b57cd0bbb6ccaa9f0e25ad52664abc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dee9aed2f1048ea669509feda308fad951b57cd0bbb6ccaa9f0e25ad52664abc", kill_on_drop: false }`
[INFO] [stdout] dee9aed2f1048ea669509feda308fad951b57cd0bbb6ccaa9f0e25ad52664abc