[INFO] fetching crate wordler 0.3.0...
[INFO] building wordler-0.3.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate wordler 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate wordler 0.3.0
[INFO] finished tweaking crates.io crate wordler 0.3.0
[INFO] tweaked toml for crates.io crate wordler 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wordler 0.3.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wordler 0.3.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_hc v0.3.1
[INFO] [stderr]   Downloaded rand_core v0.6.3
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.16
[INFO] [stderr]   Downloaded anyhow v1.0.53
[INFO] [stderr]   Downloaded rand v0.8.4
[INFO] [stderr]   Downloaded libc v0.2.117
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00e7050396e0b6a92c293186a50621dc40ab06b771cb69907a64968f85d5e36f
[INFO] running `Command { std: "docker" "start" "-a" "00e7050396e0b6a92c293186a50621dc40ab06b771cb69907a64968f85d5e36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00e7050396e0b6a92c293186a50621dc40ab06b771cb69907a64968f85d5e36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e7050396e0b6a92c293186a50621dc40ab06b771cb69907a64968f85d5e36f", kill_on_drop: false }`
[INFO] [stdout] 00e7050396e0b6a92c293186a50621dc40ab06b771cb69907a64968f85d5e36f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0ac647e6b73ab121666b95888d39a5f33fd0a928f1210928e8e870b1328abca
[INFO] running `Command { std: "docker" "start" "-a" "e0ac647e6b73ab121666b95888d39a5f33fd0a928f1210928e8e870b1328abca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling wordler v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `TestDict` is never constructed
[INFO] [stdout]    --> src/wordle.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 |     struct TestDict;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/wordle.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn play(&mut self, word: &str) -> Result<PlayResult> {
[INFO] [stdout]    |                 ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn play(&mut self, word: &str) -> Result<PlayResult<'_>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "e0ac647e6b73ab121666b95888d39a5f33fd0a928f1210928e8e870b1328abca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ac647e6b73ab121666b95888d39a5f33fd0a928f1210928e8e870b1328abca", kill_on_drop: false }`
[INFO] [stdout] e0ac647e6b73ab121666b95888d39a5f33fd0a928f1210928e8e870b1328abca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 877dfff7aeb08b1439b36e7ae9c58e3552a7a339ce408d3fc60d6191ad62bc56
[INFO] running `Command { std: "docker" "start" "-a" "877dfff7aeb08b1439b36e7ae9c58e3552a7a339ce408d3fc60d6191ad62bc56", kill_on_drop: false }`
[INFO] [stderr]    Compiling wordler v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `TestDict` is never constructed
[INFO] [stdout]    --> src/wordle.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 |     struct TestDict;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/wordle.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn play(&mut self, word: &str) -> Result<PlayResult> {
[INFO] [stdout]    |                 ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn play(&mut self, word: &str) -> Result<PlayResult<'_>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/wordle.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn play(&mut self, word: &str) -> Result<PlayResult> {
[INFO] [stdout]    |                 ^^^^^^^^^                        ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn play(&mut self, word: &str) -> Result<PlayResult<'_>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "877dfff7aeb08b1439b36e7ae9c58e3552a7a339ce408d3fc60d6191ad62bc56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877dfff7aeb08b1439b36e7ae9c58e3552a7a339ce408d3fc60d6191ad62bc56", kill_on_drop: false }`
[INFO] [stdout] 877dfff7aeb08b1439b36e7ae9c58e3552a7a339ce408d3fc60d6191ad62bc56