[INFO] cloning repository https://github.com/T-Dark0/rust-string-into-chars-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/T-Dark0/rust-string-into-chars-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT-Dark0%2Frust-string-into-chars-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT-Dark0%2Frust-string-into-chars-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3e88de17b027eb81225fb1f765097d03d5ae531
[INFO] testing T-Dark0/rust-string-into-chars-poc against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT-Dark0%2Frust-string-into-chars-poc" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/T-Dark0/rust-string-into-chars-poc on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/T-Dark0/rust-string-into-chars-poc
[INFO] finished tweaking git repo https://github.com/T-Dark0/rust-string-into-chars-poc
[INFO] tweaked toml for git repo https://github.com/T-Dark0/rust-string-into-chars-poc written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/T-Dark0/rust-string-into-chars-poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce79f543aa6fd1465b9c1d87e07d84ffb60f1be67e0653fc11f1c9787ed9fc6c
[INFO] running `Command { std: "docker" "start" "-a" "ce79f543aa6fd1465b9c1d87e07d84ffb60f1be67e0653fc11f1c9787ed9fc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce79f543aa6fd1465b9c1d87e07d84ffb60f1be67e0653fc11f1c9787ed9fc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce79f543aa6fd1465b9c1d87e07d84ffb60f1be67e0653fc11f1c9787ed9fc6c", kill_on_drop: false }`
[INFO] [stdout] ce79f543aa6fd1465b9c1d87e07d84ffb60f1be67e0653fc11f1c9787ed9fc6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 256d395c5962c229b9c7115e13c4cddd146884f726b60e7614f8c72c2f95d416
[INFO] running `Command { std: "docker" "start" "-a" "256d395c5962c229b9c7115e13c4cddd146884f726b60e7614f8c72c2f95d416", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling into_chars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `into_chars`
[INFO] [stdout]   --> src/lib.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn into_chars(string: String) -> StringIntoChars {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `assoc_char_funcs` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(assoc_char_funcs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "256d395c5962c229b9c7115e13c4cddd146884f726b60e7614f8c72c2f95d416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "256d395c5962c229b9c7115e13c4cddd146884f726b60e7614f8c72c2f95d416", kill_on_drop: false }`
[INFO] [stdout] 256d395c5962c229b9c7115e13c4cddd146884f726b60e7614f8c72c2f95d416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 048b88e9a7cb25816b4bbb4a7cdabb4f2a6951ac427f1035f3dfde1d6e442b86
[INFO] running `Command { std: "docker" "start" "-a" "048b88e9a7cb25816b4bbb4a7cdabb4f2a6951ac427f1035f3dfde1d6e442b86", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: function is never used: `into_chars`
[INFO] [stdout]   --> src/lib.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn into_chars(string: String) -> StringIntoChars {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling into_chars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `assoc_char_funcs` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(assoc_char_funcs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `into_chars`
[INFO] [stdout]   --> src/lib.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn into_chars(string: String) -> StringIntoChars {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `assoc_char_funcs` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(assoc_char_funcs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "048b88e9a7cb25816b4bbb4a7cdabb4f2a6951ac427f1035f3dfde1d6e442b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "048b88e9a7cb25816b4bbb4a7cdabb4f2a6951ac427f1035f3dfde1d6e442b86", kill_on_drop: false }`
[INFO] [stdout] 048b88e9a7cb25816b4bbb4a7cdabb4f2a6951ac427f1035f3dfde1d6e442b86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a786856e53fcdd585394aa04546ac81e70a23714a7fd31368aab8ebf5d171410
[INFO] running `Command { std: "docker" "start" "-a" "a786856e53fcdd585394aa04546ac81e70a23714a7fd31368aab8ebf5d171410", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function is never used: `into_chars`
[INFO] [stderr]   --> src/lib.rs:57:4
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn into_chars(string: String) -> StringIntoChars {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `assoc_char_funcs` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(assoc_char_funcs)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `into_chars` (lib) generated 2 warnings
[INFO] [stderr] warning: `into_chars` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.88s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/into_chars-a9b152bfbaac7afa)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests into_chars
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a786856e53fcdd585394aa04546ac81e70a23714a7fd31368aab8ebf5d171410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a786856e53fcdd585394aa04546ac81e70a23714a7fd31368aab8ebf5d171410", kill_on_drop: false }`
[INFO] [stdout] a786856e53fcdd585394aa04546ac81e70a23714a7fd31368aab8ebf5d171410