[INFO] cloning repository https://github.com/RetroRick/snippet_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RetroRick/snippet_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66e450076991c9bc2163bf73ee0c94df6c7a64f1
[INFO] checking RetroRick/snippet_generator against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RetroRick/snippet_generator on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] finished tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] tweaked toml for git repo https://github.com/RetroRick/snippet_generator written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RetroRick/snippet_generator 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cf29dbabd37c24da441ed1548a988312d09ef82bab4926271e4b21f3ee99f8f
[INFO] running `Command { std: "docker" "start" "-a" "2cf29dbabd37c24da441ed1548a988312d09ef82bab4926271e4b21f3ee99f8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cf29dbabd37c24da441ed1548a988312d09ef82bab4926271e4b21f3ee99f8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf29dbabd37c24da441ed1548a988312d09ef82bab4926271e4b21f3ee99f8f", kill_on_drop: false }`
[INFO] [stdout] 2cf29dbabd37c24da441ed1548a988312d09ef82bab4926271e4b21f3ee99f8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1210050e14ec3ae00d8aac0ada8354c87bd581628deeed21080d8a84fd0bee1c
[INFO] running `Command { std: "docker" "start" "-a" "1210050e14ec3ae00d8aac0ada8354c87bd581628deeed21080d8a84fd0bee1c", kill_on_drop: false }`
[INFO] [stderr]     Checking snippet_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "1210050e14ec3ae00d8aac0ada8354c87bd581628deeed21080d8a84fd0bee1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1210050e14ec3ae00d8aac0ada8354c87bd581628deeed21080d8a84fd0bee1c", kill_on_drop: false }`
[INFO] [stdout] 1210050e14ec3ae00d8aac0ada8354c87bd581628deeed21080d8a84fd0bee1c
[INFO] checking RetroRick/snippet_generator against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RetroRick/snippet_generator on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] finished tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] tweaked toml for git repo https://github.com/RetroRick/snippet_generator written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/RetroRick/snippet_generator 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8951dc52d975e9925f906b0c1238f1aee582083169d4343607f0e58f618ad83d
[INFO] running `Command { std: "docker" "start" "-a" "8951dc52d975e9925f906b0c1238f1aee582083169d4343607f0e58f618ad83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8951dc52d975e9925f906b0c1238f1aee582083169d4343607f0e58f618ad83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8951dc52d975e9925f906b0c1238f1aee582083169d4343607f0e58f618ad83d", kill_on_drop: false }`
[INFO] [stdout] 8951dc52d975e9925f906b0c1238f1aee582083169d4343607f0e58f618ad83d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68da8e23b55b47aa69c80476fba147d55f9ec105c39023356c91739432ee24e8
[INFO] running `Command { std: "docker" "start" "-a" "68da8e23b55b47aa69c80476fba147d55f9ec105c39023356c91739432ee24e8", kill_on_drop: false }`
[INFO] [stderr]     Checking snippet_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "68da8e23b55b47aa69c80476fba147d55f9ec105c39023356c91739432ee24e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68da8e23b55b47aa69c80476fba147d55f9ec105c39023356c91739432ee24e8", kill_on_drop: false }`
[INFO] [stdout] 68da8e23b55b47aa69c80476fba147d55f9ec105c39023356c91739432ee24e8