[INFO] cloning repository https://github.com/Thomas-Langlais/t-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Thomas-Langlais/t-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThomas-Langlais%2Ft-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThomas-Langlais%2Ft-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11dfb263f1aa02f44648f7657b67f186e172c144
[INFO] testing Thomas-Langlais/t-lang against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThomas-Langlais%2Ft-lang" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Thomas-Langlais/t-lang on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Thomas-Langlais/t-lang
[INFO] finished tweaking git repo https://github.com/Thomas-Langlais/t-lang
[INFO] tweaked toml for git repo https://github.com/Thomas-Langlais/t-lang written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Thomas-Langlais/t-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a67fd144484005465efd5332f761754783c54234272b57121800e0f29baca0ae
[INFO] running `Command { std: "docker" "start" "-a" "a67fd144484005465efd5332f761754783c54234272b57121800e0f29baca0ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a67fd144484005465efd5332f761754783c54234272b57121800e0f29baca0ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67fd144484005465efd5332f761754783c54234272b57121800e0f29baca0ae", kill_on_drop: false }`
[INFO] [stdout] a67fd144484005465efd5332f761754783c54234272b57121800e0f29baca0ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8a0be2adb3c919b898ad13d6151034f8e4e15464af1d254418b6d009d9a38825
[INFO] running `Command { std: "docker" "start" "-a" "8a0be2adb3c919b898ad13d6151034f8e4e15464af1d254418b6d009d9a38825", kill_on_drop: false }`
[INFO] [stderr]    Compiling tlang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lexer.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     lazy: &'a Fn() -> R,
[INFO] [stdout]   |               ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> R`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:129:26
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn new(lazy: &'a Fn() -> R) -> Lexer<'a, R> {
[INFO] [stdout]     |                          ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lexer.rs:171:25
[INFO] [stdout]     |
[INFO] [stdout] 171 |                 Some(Ok(b)) => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lexer.rs:216:25
[INFO] [stdout]     |
[INFO] [stdout] 216 |                 Some(Ok(b)) => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]    --> src/lexer.rs:252:5
[INFO] [stdout]     |
[INFO] [stdout] 252 |     value: TokenType,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]    --> src/lexer.rs:253:5
[INFO] [stdout]     |
[INFO] [stdout] 253 |     source: Location
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]    --> src/lexer.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 |     start: Position,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> src/lexer.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     end: Position
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "8a0be2adb3c919b898ad13d6151034f8e4e15464af1d254418b6d009d9a38825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a0be2adb3c919b898ad13d6151034f8e4e15464af1d254418b6d009d9a38825", kill_on_drop: false }`
[INFO] [stdout] 8a0be2adb3c919b898ad13d6151034f8e4e15464af1d254418b6d009d9a38825
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef9c10ed205002daf648390fb80e087cd55ef2be7934e7d74f3d5b926cb5e29b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ef9c10ed205002daf648390fb80e087cd55ef2be7934e7d74f3d5b926cb5e29b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tlang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lexer.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     lazy: &'a Fn() -> R,
[INFO] [stdout]   |               ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> R`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:129:26
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn new(lazy: &'a Fn() -> R) -> Lexer<'a, R> {
[INFO] [stdout]     |                          ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> R`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lexer.rs:171:25
[INFO] [stdout]     |
[INFO] [stdout] 171 |                 Some(Ok(b)) => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lexer.rs:216:25
[INFO] [stdout]     |
[INFO] [stdout] 216 |                 Some(Ok(b)) => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]    --> src/lexer.rs:252:5
[INFO] [stdout]     |
[INFO] [stdout] 252 |     value: TokenType,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]    --> src/lexer.rs:253:5
[INFO] [stdout]     |
[INFO] [stdout] 253 |     source: Location
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]    --> src/lexer.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 |     start: Position,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end`
[INFO] [stdout]    --> src/lexer.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     end: Position
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "ef9c10ed205002daf648390fb80e087cd55ef2be7934e7d74f3d5b926cb5e29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9c10ed205002daf648390fb80e087cd55ef2be7934e7d74f3d5b926cb5e29b", kill_on_drop: false }`
[INFO] [stdout] ef9c10ed205002daf648390fb80e087cd55ef2be7934e7d74f3d5b926cb5e29b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c81d98fc25aa7f9ac836a918ff2cdfaa53b5a76d15cd307aae6750971ff55020
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c81d98fc25aa7f9ac836a918ff2cdfaa53b5a76d15cd307aae6750971ff55020", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lexer.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     lazy: &'a Fn() -> R,
[INFO] [stderr]   |               ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> R`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lexer.rs:129:26
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn new(lazy: &'a Fn() -> R) -> Lexer<'a, R> {
[INFO] [stderr]     |                          ^^^^^^^^^ help: use `dyn`: `dyn Fn() -> R`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lexer.rs:171:25
[INFO] [stderr]     |
[INFO] [stderr] 171 |                 Some(Ok(b)) => {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lexer.rs:216:25
[INFO] [stderr]     |
[INFO] [stderr] 216 |                 Some(Ok(b)) => {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]    --> src/lexer.rs:252:5
[INFO] [stderr]     |
[INFO] [stderr] 252 |     value: TokenType,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `source`
[INFO] [stderr]    --> src/lexer.rs:253:5
[INFO] [stderr]     |
[INFO] [stderr] 253 |     source: Location
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `start`
[INFO] [stderr]    --> src/lexer.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     start: Position,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `end`
[INFO] [stderr]    --> src/lexer.rs:271:5
[INFO] [stderr]     |
[INFO] [stderr] 271 |     end: Position
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tlang` (bin "tlang" test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tlang-1fd84c04d6941fce)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c81d98fc25aa7f9ac836a918ff2cdfaa53b5a76d15cd307aae6750971ff55020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81d98fc25aa7f9ac836a918ff2cdfaa53b5a76d15cd307aae6750971ff55020", kill_on_drop: false }`
[INFO] [stdout] c81d98fc25aa7f9ac836a918ff2cdfaa53b5a76d15cd307aae6750971ff55020