[INFO] cloning repository https://github.com/ijks/esolangs-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ijks/esolangs-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fijks%2Fesolangs-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fijks%2Fesolangs-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9aba1332285c0c330988fe7d60d35987fdf2af74
[INFO] checking ijks/esolangs-rs against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fijks%2Fesolangs-rs" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ijks/esolangs-rs on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-63/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/ijks/esolangs-rs
[INFO] finished tweaking git repo https://github.com/ijks/esolangs-rs
[INFO] tweaked toml for git repo https://github.com/ijks/esolangs-rs written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/ijks/esolangs-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded proptest v0.10.1
[INFO] [stderr]   Downloaded bit-vec v0.6.2
[INFO] [stderr]   Downloaded utf8-chars v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0c23020f79b640452186519d1c12d66acca7abb465623d90ab75fc3acd167a9
[INFO] running `Command { std: "docker" "start" "-a" "a0c23020f79b640452186519d1c12d66acca7abb465623d90ab75fc3acd167a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0c23020f79b640452186519d1c12d66acca7abb465623d90ab75fc3acd167a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0c23020f79b640452186519d1c12d66acca7abb465623d90ab75fc3acd167a9", kill_on_drop: false }`
[INFO] [stdout] a0c23020f79b640452186519d1c12d66acca7abb465623d90ab75fc3acd167a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd510a11a4fe57cbdf9b14d460b62ced2d226aa20d7014587e10e3ac02609d38
[INFO] running `Command { std: "docker" "start" "-a" "bd510a11a4fe57cbdf9b14d460b62ced2d226aa20d7014587e10e3ac02609d38", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking emmental v0.1.0 (/opt/rustwide/workdir/emmental)
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking utf8-chars v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking mascarpone v0.1.0 (/opt/rustwide/workdir/mascarpone)
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> mascarpone/src/state.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, BufRead, BufReader, Read, Write},
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `program`
[INFO] [stdout]   --> mascarpone/src/operation.rs:22:27
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Self::Program(program, interp) => todo!(),
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interp`
[INFO] [stdout]   --> mascarpone/src/operation.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Self::Program(program, interp) => todo!(),
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_interp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Variant` in public interface (error E0446)
[INFO] [stdout]   --> mascarpone/src/interpreter.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn variant(&self) -> &Variant {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mapping`
[INFO] [stdout]   --> mascarpone/src/interpreter.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn mapping(mapping: HashMap<Symbol, Operation>) -> Self {
[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: `variant`
[INFO] [stdout]   --> mascarpone/src/interpreter.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn variant(&self) -> &Variant {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_while`
[INFO] [stdout]   --> mascarpone/src/stack.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn pop_while<'a, P>(&'a mut self, mut pred: P) -> impl Iterator<Item = T> + 'a
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> mascarpone/src/state.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, BufRead, BufReader, Read, Write},
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `program`
[INFO] [stdout]   --> mascarpone/src/operation.rs:22:27
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Self::Program(program, interp) => todo!(),
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interp`
[INFO] [stdout]   --> mascarpone/src/operation.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Self::Program(program, interp) => todo!(),
[INFO] [stdout]    |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_interp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Variant` in public interface (error E0446)
[INFO] [stdout]   --> mascarpone/src/interpreter.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn variant(&self) -> &Variant {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mapping`
[INFO] [stdout]   --> mascarpone/src/interpreter.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn mapping(mapping: HashMap<Symbol, Operation>) -> Self {
[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: `variant`
[INFO] [stdout]   --> mascarpone/src/interpreter.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn variant(&self) -> &Variant {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.51s
[INFO] running `Command { std: "docker" "inspect" "bd510a11a4fe57cbdf9b14d460b62ced2d226aa20d7014587e10e3ac02609d38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd510a11a4fe57cbdf9b14d460b62ced2d226aa20d7014587e10e3ac02609d38", kill_on_drop: false }`
[INFO] [stdout] bd510a11a4fe57cbdf9b14d460b62ced2d226aa20d7014587e10e3ac02609d38