[INFO] fetching crate dots-and-boxes 0.1.0...
[INFO] checking dots-and-boxes-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dots-and-boxes 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate dots-and-boxes 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dots-and-boxes 0.1.0
[INFO] finished tweaking crates.io crate dots-and-boxes 0.1.0
[INFO] tweaked toml for crates.io crate dots-and-boxes 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate dots-and-boxes 0.1.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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 cmake v0.1.48
[INFO] [stderr]   Downloaded sdl2 v0.35.2
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3024120a4613573ba3fbac10d1d0c855737b7d786b9a99eac2ef2e6f84f19b7e
[INFO] running `Command { std: "docker" "start" "-a" "3024120a4613573ba3fbac10d1d0c855737b7d786b9a99eac2ef2e6f84f19b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3024120a4613573ba3fbac10d1d0c855737b7d786b9a99eac2ef2e6f84f19b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3024120a4613573ba3fbac10d1d0c855737b7d786b9a99eac2ef2e6f84f19b7e", kill_on_drop: false }`
[INFO] [stdout] 3024120a4613573ba3fbac10d1d0c855737b7d786b9a99eac2ef2e6f84f19b7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38374de70d95e59b8e974017d2e239e02b4e9ea9538951fbc2cff21eebaa273c
[INFO] running `Command { std: "docker" "start" "-a" "38374de70d95e59b8e974017d2e239e02b4e9ea9538951fbc2cff21eebaa273c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking dots-and-boxes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `COLOR_NAMES`
[INFO] [stdout]  --> src/options.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::colors::{COLOR_NAMES, self};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `COLOR_NAMES`
[INFO] [stdout]  --> src/options.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::colors::{COLOR_NAMES, self};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_to_terminal` is never used
[INFO] [stdout]    --> src/logic.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 25  | impl DotsAndBoxesState {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn print_to_terminal(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_to_terminal` is never used
[INFO] [stdout]    --> src/logic.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 25  | impl DotsAndBoxesState {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn print_to_terminal(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "38374de70d95e59b8e974017d2e239e02b4e9ea9538951fbc2cff21eebaa273c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38374de70d95e59b8e974017d2e239e02b4e9ea9538951fbc2cff21eebaa273c", kill_on_drop: false }`
[INFO] [stdout] 38374de70d95e59b8e974017d2e239e02b4e9ea9538951fbc2cff21eebaa273c
[INFO] checking dots-and-boxes-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate dots-and-boxes 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate dots-and-boxes 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dots-and-boxes 0.1.0
[INFO] finished tweaking crates.io crate dots-and-boxes 0.1.0
[INFO] tweaked toml for crates.io crate dots-and-boxes 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate dots-and-boxes 0.1.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5e04adb5540813ee3b52e75cb577e541d360395089567c7afb981229b6040d0
[INFO] running `Command { std: "docker" "start" "-a" "a5e04adb5540813ee3b52e75cb577e541d360395089567c7afb981229b6040d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5e04adb5540813ee3b52e75cb577e541d360395089567c7afb981229b6040d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e04adb5540813ee3b52e75cb577e541d360395089567c7afb981229b6040d0", kill_on_drop: false }`
[INFO] [stdout] a5e04adb5540813ee3b52e75cb577e541d360395089567c7afb981229b6040d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f8b8df976289b6443a2948c3e52d4afc3a3be5aa110253d574d267cfb34937e
[INFO] running `Command { std: "docker" "start" "-a" "3f8b8df976289b6443a2948c3e52d4afc3a3be5aa110253d574d267cfb34937e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking dots-and-boxes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `COLOR_NAMES`
[INFO] [stdout]  --> src/options.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::colors::{COLOR_NAMES, self};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `COLOR_NAMES`
[INFO] [stdout]  --> src/options.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::colors::{COLOR_NAMES, self};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_to_terminal` is never used
[INFO] [stdout]    --> src/logic.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 25  | impl DotsAndBoxesState {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn print_to_terminal(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_to_terminal` is never used
[INFO] [stdout]    --> src/logic.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 25  | impl DotsAndBoxesState {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn print_to_terminal(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.26s
[INFO] running `Command { std: "docker" "inspect" "3f8b8df976289b6443a2948c3e52d4afc3a3be5aa110253d574d267cfb34937e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f8b8df976289b6443a2948c3e52d4afc3a3be5aa110253d574d267cfb34937e", kill_on_drop: false }`
[INFO] [stdout] 3f8b8df976289b6443a2948c3e52d4afc3a3be5aa110253d574d267cfb34937e