[INFO] cloning repository https://github.com/killercup/rust-cheat-sheet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/killercup/rust-cheat-sheet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Frust-cheat-sheet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Frust-cheat-sheet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4705136cd5a38a459017f1168e0c0c411956a31
[INFO] checking killercup/rust-cheat-sheet against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkillercup%2Frust-cheat-sheet" "/workspace/builds/worker-44/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-44/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/killercup/rust-cheat-sheet 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/killercup/rust-cheat-sheet
[INFO] finished tweaking git repo https://github.com/killercup/rust-cheat-sheet
[INFO] tweaked toml for git repo https://github.com/killercup/rust-cheat-sheet written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate git repo https://github.com/killercup/rust-cheat-sheet 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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] ab47e47ab0643a06f8556924885bd0f8d0f49535f557fa1a29a274c4b64370b9
[INFO] running `Command { std: "docker" "start" "-a" "ab47e47ab0643a06f8556924885bd0f8d0f49535f557fa1a29a274c4b64370b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab47e47ab0643a06f8556924885bd0f8d0f49535f557fa1a29a274c4b64370b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab47e47ab0643a06f8556924885bd0f8d0f49535f557fa1a29a274c4b64370b9", kill_on_drop: false }`
[INFO] [stdout] ab47e47ab0643a06f8556924885bd0f8d0f49535f557fa1a29a274c4b64370b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] a3d179e7eb4cef2d8519c7b2df49ba5a902bbbdacfaf86e487b8b67f215f023f
[INFO] running `Command { std: "docker" "start" "-a" "a3d179e7eb4cef2d8519c7b2df49ba5a902bbbdacfaf86e487b8b67f215f023f", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust101 v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating cheat-sheet.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed cheat-sheet.rs (2 fixes)
[INFO] [stdout] warning: variable `y` is assigned to, but never used
[INFO] [stdout]   --> cheat-sheet.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut y = 2;             // A mutable binding: We can change this value
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_y` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> cheat-sheet.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     y += 1;                    // Add 1 to `y`, making it 3
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> cheat-sheet.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fn new(name: &str, age: u16) -> Person {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `y` is assigned to, but never used
[INFO] [stdout]   --> cheat-sheet.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut y = 2;             // A mutable binding: We can change this value
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_y` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> cheat-sheet.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     y += 1;                    // Add 1 to `y`, making it 3
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> cheat-sheet.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fn new(name: &str, age: u16) -> Person {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust101 v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: variable `y` is assigned to, but never used
[INFO] [stdout]   --> cheat-sheet.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut y = 2;             // A mutable binding: We can change this value
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_y` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> cheat-sheet.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     y += 1;                    // Add 1 to `y`, making it 3
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `y` is assigned to, but never used
[INFO] [stdout]   --> cheat-sheet.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut y = 2;             // A mutable binding: We can change this value
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_y` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> cheat-sheet.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     y += 1;                    // Add 1 to `y`, making it 3
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> cheat-sheet.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fn new(name: &str, age: u16) -> Person {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> cheat-sheet.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fn new(name: &str, age: u16) -> Person {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.04s
[INFO] running `Command { std: "docker" "inspect" "a3d179e7eb4cef2d8519c7b2df49ba5a902bbbdacfaf86e487b8b67f215f023f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3d179e7eb4cef2d8519c7b2df49ba5a902bbbdacfaf86e487b8b67f215f023f", kill_on_drop: false }`
[INFO] [stdout] a3d179e7eb4cef2d8519c7b2df49ba5a902bbbdacfaf86e487b8b67f215f023f