[INFO] cloning repository https://github.com/jjantschulev/lust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjantschulev/lust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjantschulev%2Flust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjantschulev%2Flust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f665462e9f4309df0bf62b26102ee6f17b309575
[INFO] checking jjantschulev/lust against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjantschulev%2Flust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jjantschulev/lust on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jjantschulev/lust
[INFO] finished tweaking git repo https://github.com/jjantschulev/lust
[INFO] tweaked toml for git repo https://github.com/jjantschulev/lust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jjantschulev/lust 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 743dae4316f23cb2d4d67b08422bc4d805675f4ae2e20d73bccfbaabe4778bb4
[INFO] running `Command { std: "docker" "start" "-a" "743dae4316f23cb2d4d67b08422bc4d805675f4ae2e20d73bccfbaabe4778bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "743dae4316f23cb2d4d67b08422bc4d805675f4ae2e20d73bccfbaabe4778bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743dae4316f23cb2d4d67b08422bc4d805675f4ae2e20d73bccfbaabe4778bb4", kill_on_drop: false }`
[INFO] [stdout] 743dae4316f23cb2d4d67b08422bc4d805675f4ae2e20d73bccfbaabe4778bb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 515b329689579c6c2041f5c2ee02c3b0aa40ce71ed8c8cb71a44b1c85aa64f08
[INFO] running `Command { std: "docker" "start" "-a" "515b329689579c6c2041f5c2ee02c3b0aa40ce71ed8c8cb71a44b1c85aa64f08", kill_on_drop: false }`
[INFO] [stderr]     Checking lust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser/mod.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::tokeniser::{self, Token, Tokeniser};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser/mod.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::tokeniser::{self, Token, Tokeniser};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/tokeniser/mod.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn new(text: &'a str) -> Peekable<Tokeniser> {
[INFO] [stdout]    |                       ^^                  --------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn new(text: &'a str) -> Peekable<Tokeniser<'a>> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/tokeniser/mod.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn new(text: &'a str) -> Peekable<Tokeniser> {
[INFO] [stdout]    |                       ^^                  --------- the lifetime gets resolved as `'a`
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn new(text: &'a str) -> Peekable<Tokeniser<'a>> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "515b329689579c6c2041f5c2ee02c3b0aa40ce71ed8c8cb71a44b1c85aa64f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515b329689579c6c2041f5c2ee02c3b0aa40ce71ed8c8cb71a44b1c85aa64f08", kill_on_drop: false }`
[INFO] [stdout] 515b329689579c6c2041f5c2ee02c3b0aa40ce71ed8c8cb71a44b1c85aa64f08