[INFO] cloning repository https://github.com/michealkeines/Prettifier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michealkeines/Prettifier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichealkeines%2FPrettifier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichealkeines%2FPrettifier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df8f2edd5b0ca5e37b73bbb5c98e47770aecab68
[INFO] testing michealkeines/Prettifier against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichealkeines%2FPrettifier" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/michealkeines/Prettifier
[INFO] finished tweaking git repo https://github.com/michealkeines/Prettifier
[INFO] tweaked toml for git repo https://github.com/michealkeines/Prettifier written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/michealkeines/Prettifier on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/michealkeines/Prettifier 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 255d6296727188841c3844cd3c04dcd526f381ada5a6d8a4b0229457f5490685
[INFO] running `Command { std: "docker" "start" "-a" "255d6296727188841c3844cd3c04dcd526f381ada5a6d8a4b0229457f5490685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "255d6296727188841c3844cd3c04dcd526f381ada5a6d8a4b0229457f5490685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "255d6296727188841c3844cd3c04dcd526f381ada5a6d8a4b0229457f5490685", kill_on_drop: false }`
[INFO] [stdout] 255d6296727188841c3844cd3c04dcd526f381ada5a6d8a4b0229457f5490685
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c596f38ebc0d1799d59aa0051e03bb69b1c1ddc61533cca1c1f8955f7c2baaf8
[INFO] running `Command { std: "docker" "start" "-a" "c596f38ebc0d1799d59aa0051e03bb69b1c1ddc61533cca1c1f8955f7c2baaf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling prettifier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/prettify.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn update(&self, c: char, i: usize, list: &Vec<u8>) -> Vec<u8>{
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/prettify.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut count = 0;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/prettify.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut count = 0;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "c596f38ebc0d1799d59aa0051e03bb69b1c1ddc61533cca1c1f8955f7c2baaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c596f38ebc0d1799d59aa0051e03bb69b1c1ddc61533cca1c1f8955f7c2baaf8", kill_on_drop: false }`
[INFO] [stdout] c596f38ebc0d1799d59aa0051e03bb69b1c1ddc61533cca1c1f8955f7c2baaf8
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20abb37467b6ad39dea34cd108eedaf2fa7d80805e8ac7ae5141a2c1af86ef79
[INFO] running `Command { std: "docker" "start" "-a" "20abb37467b6ad39dea34cd108eedaf2fa7d80805e8ac7ae5141a2c1af86ef79", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/prettify.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn update(&self, c: char, i: usize, list: &Vec<u8>) -> Vec<u8>{
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/prettify.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut count = 0;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/prettify.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut count = 0;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling prettifier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/unsafe_stack.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/prettify.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn update(&self, c: char, i: usize, list: &Vec<u8>) -> Vec<u8>{
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/prettify.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut count = 0;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/prettify.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let mut count = 0;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "20abb37467b6ad39dea34cd108eedaf2fa7d80805e8ac7ae5141a2c1af86ef79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20abb37467b6ad39dea34cd108eedaf2fa7d80805e8ac7ae5141a2c1af86ef79", kill_on_drop: false }`
[INFO] [stdout] 20abb37467b6ad39dea34cd108eedaf2fa7d80805e8ac7ae5141a2c1af86ef79
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3364d0c4ea74d4df0905843bb030d265c132b6deb43a048fe92e6718998db4f5
[INFO] running `Command { std: "docker" "start" "-a" "3364d0c4ea74d4df0905843bb030d265c132b6deb43a048fe92e6718998db4f5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/prettify.rs:38:22
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn update(&self, c: char, i: usize, list: &Vec<u8>) -> Vec<u8>{
[INFO] [stderr]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/prettify.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             let mut count = 0;
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/prettify.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |             let mut count = 0;
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: `prettifier` (lib) generated 3 warnings (run `cargo fix --lib -p prettifier` to apply 3 suggestions)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/unsafe_stack.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `prettifier` (lib test) generated 4 warnings (3 duplicates) (run `cargo fix --lib -p prettifier --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/prettifier-a012f5803da2a725)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test prettify::tests::test_pretify has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "3364d0c4ea74d4df0905843bb030d265c132b6deb43a048fe92e6718998db4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3364d0c4ea74d4df0905843bb030d265c132b6deb43a048fe92e6718998db4f5", kill_on_drop: false }`
[INFO] [stdout] 3364d0c4ea74d4df0905843bb030d265c132b6deb43a048fe92e6718998db4f5
