[INFO] cloning repository https://github.com/zesterer/fuckvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zesterer/fuckvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffuckvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffuckvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf2751673cba6fe0eba6495ce0585958097add51
[INFO] checking zesterer/fuckvm against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffuckvm" "/workspace/builds/worker-103/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-103/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zesterer/fuckvm 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/zesterer/fuckvm
[INFO] finished tweaking git repo https://github.com/zesterer/fuckvm
[INFO] tweaked toml for git repo https://github.com/zesterer/fuckvm written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] crate git repo https://github.com/zesterer/fuckvm 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] ee0b2c830b6033d2623aff8f77e87be014cb7683eb7a465ae182a7b0ebbe70cf
[INFO] running `Command { std: "docker" "start" "-a" "ee0b2c830b6033d2623aff8f77e87be014cb7683eb7a465ae182a7b0ebbe70cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee0b2c830b6033d2623aff8f77e87be014cb7683eb7a465ae182a7b0ebbe70cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0b2c830b6033d2623aff8f77e87be014cb7683eb7a465ae182a7b0ebbe70cf", kill_on_drop: false }`
[INFO] [stdout] ee0b2c830b6033d2623aff8f77e87be014cb7683eb7a465ae182a7b0ebbe70cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 77bb1c2c7f9ca6c7af3be1be9646ab269d98af41f2ca793a2d094d2dbd7bb4aa
[INFO] running `Command { std: "docker" "start" "-a" "77bb1c2c7f9ca6c7af3be1be9646ab269d98af41f2ca793a2d094d2dbd7bb4aa", 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 fuckvm v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/bf/bfir.rs (1 fix)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ir/lir.rs:165:21
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     _ => unimplemented!(),
[INFO] [stdout]     |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ir/lir.rs:165:21
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     _ => unimplemented!(),
[INFO] [stdout]     |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SCRATCH_3`
[INFO] [stdout]    --> src/bf/bfir.rs:165:1
[INFO] [stdout]     |
[INFO] [stdout] 165 | const SCRATCH_3: usize = 9;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_byte_zeroing`
[INFO] [stdout]    --> src/bf/bfir.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn sub_byte_zeroing(from: usize, to: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SCRATCH_3`
[INFO] [stdout]    --> src/bf/bfir.rs:165:1
[INFO] [stdout]     |
[INFO] [stdout] 165 | const SCRATCH_3: usize = 9;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_byte_zeroing`
[INFO] [stdout]    --> src/bf/bfir.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn sub_byte_zeroing(from: usize, to: usize) -> String {
[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]    Migrating src/bin/vm.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/bin/test.rs from 2018 edition to 2021
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/test.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     vm.exec(&bf);
[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/bin/test.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     vm.exec(&bf);
[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 22.96s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking fuckvm v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ir/lir.rs:165:21
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     _ => unimplemented!(),
[INFO] [stdout]     |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ir/lir.rs:165:21
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     _ => unimplemented!(),
[INFO] [stdout]     |                     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SCRATCH_3`
[INFO] [stdout]    --> src/bf/bfir.rs:165:1
[INFO] [stdout]     |
[INFO] [stdout] 165 | const SCRATCH_3: usize = 9;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_byte_zeroing`
[INFO] [stdout]    --> src/bf/bfir.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn sub_byte_zeroing(from: usize, to: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SCRATCH_3`
[INFO] [stdout]    --> src/bf/bfir.rs:165:1
[INFO] [stdout]     |
[INFO] [stdout] 165 | const SCRATCH_3: usize = 9;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sub_byte_zeroing`
[INFO] [stdout]    --> src/bf/bfir.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn sub_byte_zeroing(from: usize, to: usize) -> String {
[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] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/test.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     vm.exec(&bf);
[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/bin/test.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     vm.exec(&bf);
[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 47.39s
[INFO] running `Command { std: "docker" "inspect" "77bb1c2c7f9ca6c7af3be1be9646ab269d98af41f2ca793a2d094d2dbd7bb4aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77bb1c2c7f9ca6c7af3be1be9646ab269d98af41f2ca793a2d094d2dbd7bb4aa", kill_on_drop: false }`
[INFO] [stdout] 77bb1c2c7f9ca6c7af3be1be9646ab269d98af41f2ca793a2d094d2dbd7bb4aa