[INFO] cloning repository https://github.com/Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2FCompiling-Pattern-Matching-to-Good-Decision-Trees", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2FCompiling-Pattern-Matching-to-Good-Decision-Trees'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e080a4b5b9bde0beb557249f4d78827416042c8b
[INFO] checking Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2FCompiling-Pattern-Matching-to-Good-Decision-Trees" "/workspace/builds/worker-90/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-90/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees 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/Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees
[INFO] finished tweaking git repo https://github.com/Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees
[INFO] tweaked toml for git repo https://github.com/Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate git repo https://github.com/Lapz/Compiling-Pattern-Matching-to-Good-Decision-Trees 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-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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] 01666c25533518a4707d82280c5a213bc871c799fffedf1fe64fcc86456bd7b1
[INFO] running `Command { std: "docker" "start" "-a" "01666c25533518a4707d82280c5a213bc871c799fffedf1fe64fcc86456bd7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01666c25533518a4707d82280c5a213bc871c799fffedf1fe64fcc86456bd7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01666c25533518a4707d82280c5a213bc871c799fffedf1fe64fcc86456bd7b1", kill_on_drop: false }`
[INFO] [stdout] 01666c25533518a4707d82280c5a213bc871c799fffedf1fe64fcc86456bd7b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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] fc0aa847daf3f87f291646231908fff0a216ad4ab2ca7cd6be5de801827a0ab2
[INFO] running `Command { std: "docker" "start" "-a" "fc0aa847daf3f87f291646231908fff0a216ad4ab2ca7cd6be5de801827a0ab2", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking slpj v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (3 fixes)
[INFO] [stderr]        Fixed src/matrix.rs (2 fixes)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     ));;
[INFO] [stdout]    |        ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     ));;
[INFO] [stdout]    |        ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         ;
[INFO] [stdout]    |         ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |        ;
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/decision.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{self, Display, Write};
[INFO] [stdout]   |                               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/decision.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{self, Display, Write};
[INFO] [stdout]   |                               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_signature`
[INFO] [stdout]    --> src/matrix.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn get_signature(&self,index:usize) -> HashSet<Constructor> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Or`
[INFO] [stdout]   --> src/pattern.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Or(Box<Pattern>, Box<Pattern>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `nil`
[INFO] [stdout]   --> src/pattern.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn nil() -> Pattern {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_signature`
[INFO] [stdout]    --> src/matrix.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn get_signature(&self,index:usize) -> HashSet<Constructor> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Or`
[INFO] [stdout]   --> src/pattern.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Or(Box<Pattern>, Box<Pattern>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `nil`
[INFO] [stdout]   --> src/pattern.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn nil() -> Pattern {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking slpj v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     ));;
[INFO] [stdout]    |        ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     ));;
[INFO] [stdout]    |        ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         ;
[INFO] [stdout]    |         ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |        ;
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/decision.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{self, Display, Write};
[INFO] [stdout]   |                               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_signature`
[INFO] [stdout]    --> src/matrix.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn get_signature(&self,index:usize) -> HashSet<Constructor> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Or`
[INFO] [stdout]   --> src/pattern.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Or(Box<Pattern>, Box<Pattern>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `nil`
[INFO] [stdout]   --> src/pattern.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn nil() -> Pattern {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/decision.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{self, Display, Write};
[INFO] [stdout]   |                               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_signature`
[INFO] [stdout]    --> src/matrix.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn get_signature(&self,index:usize) -> HashSet<Constructor> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Or`
[INFO] [stdout]   --> src/pattern.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Or(Box<Pattern>, Box<Pattern>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `nil`
[INFO] [stdout]   --> src/pattern.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn nil() -> Pattern {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "fc0aa847daf3f87f291646231908fff0a216ad4ab2ca7cd6be5de801827a0ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc0aa847daf3f87f291646231908fff0a216ad4ab2ca7cd6be5de801827a0ab2", kill_on_drop: false }`
[INFO] [stdout] fc0aa847daf3f87f291646231908fff0a216ad4ab2ca7cd6be5de801827a0ab2