[INFO] cloning repository https://github.com/ehlxr/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ehlxr/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39bb6127de2d92a72e3da7ba9691b91570f0400c
[INFO] checking ehlxr/rust_study against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehlxr%2Frust_study" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ehlxr/rust_study on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ehlxr/rust_study
[INFO] finished tweaking git repo https://github.com/ehlxr/rust_study
[INFO] tweaked toml for git repo https://github.com/ehlxr/rust_study written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ehlxr/rust_study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1eca12b2bc50e8a1abd3a37efbcf4271c20c6f3ec0fd9caa3dfc3e134def599d
[INFO] running `Command { std: "docker" "start" "-a" "1eca12b2bc50e8a1abd3a37efbcf4271c20c6f3ec0fd9caa3dfc3e134def599d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1eca12b2bc50e8a1abd3a37efbcf4271c20c6f3ec0fd9caa3dfc3e134def599d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eca12b2bc50e8a1abd3a37efbcf4271c20c6f3ec0fd9caa3dfc3e134def599d", kill_on_drop: false }`
[INFO] [stdout] 1eca12b2bc50e8a1abd3a37efbcf4271c20c6f3ec0fd9caa3dfc3e134def599d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba43591231485f044012ffc810333aacb0289982a938244555b3f3cc8e738557
[INFO] running `Command { std: "docker" "start" "-a" "ba43591231485f044012ffc810333aacb0289982a938244555b3f3cc8e738557", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking rust_study v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (7 fixes)
[INFO] [stdout] warning: field is never read: `diameter`
[INFO] [stdout]    --> src/main.rs:878:9
[INFO] [stdout]     |
[INFO] [stdout] 878 |         diameter: &'a i32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StrWrap`
[INFO] [stdout]    --> src/main.rs:888:12
[INFO] [stdout]     |
[INFO] [stdout] 888 |     struct StrWrap<'a>(&'a str);
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fsw`
[INFO] [stdout]    --> src/main.rs:891:8
[INFO] [stdout]     |
[INFO] [stdout] 891 |     fn fsw(string: &str) -> StrWrap<'_> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]    --> src/main.rs:916:9
[INFO] [stdout]     |
[INFO] [stdout] 916 |         Stop,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/main.rs (2 fixes)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.56s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust_study v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: field is never read: `diameter`
[INFO] [stdout]    --> src/main.rs:878:9
[INFO] [stdout]     |
[INFO] [stdout] 878 |         diameter: &'a i32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StrWrap`
[INFO] [stdout]    --> src/main.rs:888:12
[INFO] [stdout]     |
[INFO] [stdout] 888 |     struct StrWrap<'a>(&'a str);
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fsw`
[INFO] [stdout]    --> src/main.rs:891:8
[INFO] [stdout]     |
[INFO] [stdout] 891 |     fn fsw(string: &str) -> StrWrap<'_> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]    --> src/main.rs:916:9
[INFO] [stdout]     |
[INFO] [stdout] 916 |         Stop,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `Command { std: "docker" "inspect" "ba43591231485f044012ffc810333aacb0289982a938244555b3f3cc8e738557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba43591231485f044012ffc810333aacb0289982a938244555b3f3cc8e738557", kill_on_drop: false }`
[INFO] [stdout] ba43591231485f044012ffc810333aacb0289982a938244555b3f3cc8e738557