[INFO] cloning repository https://github.com/vkasljevic/devmates_tasks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vkasljevic/devmates_tasks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvkasljevic%2Fdevmates_tasks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvkasljevic%2Fdevmates_tasks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a9d7d715303ce5856c032e9284f1c7388176d1b
[INFO] checking vkasljevic/devmates_tasks against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvkasljevic%2Fdevmates_tasks" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vkasljevic/devmates_tasks on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vkasljevic/devmates_tasks
[INFO] finished tweaking git repo https://github.com/vkasljevic/devmates_tasks
[INFO] tweaked toml for git repo https://github.com/vkasljevic/devmates_tasks written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/vkasljevic/devmates_tasks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b127fe8964cc06a34c6cd51444f2ec9aab9ab2cac1baf06f07e49fba192d533f
[INFO] running `Command { std: "docker" "start" "-a" "b127fe8964cc06a34c6cd51444f2ec9aab9ab2cac1baf06f07e49fba192d533f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b127fe8964cc06a34c6cd51444f2ec9aab9ab2cac1baf06f07e49fba192d533f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b127fe8964cc06a34c6cd51444f2ec9aab9ab2cac1baf06f07e49fba192d533f", kill_on_drop: false }`
[INFO] [stdout] b127fe8964cc06a34c6cd51444f2ec9aab9ab2cac1baf06f07e49fba192d533f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1f9d089ff89cace04d1718f87ce2e4767ec4fa87234a015a4c0ff30d6d965be
[INFO] running `Command { std: "docker" "start" "-a" "b1f9d089ff89cace04d1718f87ce2e4767ec4fa87234a015a4c0ff30d6d965be", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking devmates_tasks v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/task_2019_09_17.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_19.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_02.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_19.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_06.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_23.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_13.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_10.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_03.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_05.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_27.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_04.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_20.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_21.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_30.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_29.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_28.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_09.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_16.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_09_11.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/task_2019_08_26.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/task_2019_09_17.rs (3 fixes)
[INFO] [stderr]    Migrating src/task_2019_08_16.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/task_2019_09_06.rs (5 fixes)
[INFO] [stderr]    Migrating src/task_2019_08_22.rs from 2018 edition to 2021
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/task_2019_09_10.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     flood_fill(1, 1, 2, &mut image);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/task_2019_09_10.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     flood_fill(1, 1, 2, &mut image);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.87s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking devmates_tasks v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/task_2019_09_10.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     flood_fill(1, 1, 2, &mut image);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/task_2019_09_10.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     flood_fill(1, 1, 2, &mut image);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "b1f9d089ff89cace04d1718f87ce2e4767ec4fa87234a015a4c0ff30d6d965be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f9d089ff89cace04d1718f87ce2e4767ec4fa87234a015a4c0ff30d6d965be", kill_on_drop: false }`
[INFO] [stdout] b1f9d089ff89cace04d1718f87ce2e4767ec4fa87234a015a4c0ff30d6d965be