[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] checking Thomas-Langlais/t-lang against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThomas-Langlais%2Ft-lang" "/workspace/builds/worker-118/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-118/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Thomas-Langlais/t-lang on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-118/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a0b2330d53c06138fff40b6cf81081280b0d37b72a77bfc1a22ec96465845ea
[INFO] running `Command { std: "docker" "start" "-a" "6a0b2330d53c06138fff40b6cf81081280b0d37b72a77bfc1a22ec96465845ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a0b2330d53c06138fff40b6cf81081280b0d37b72a77bfc1a22ec96465845ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0b2330d53c06138fff40b6cf81081280b0d37b72a77bfc1a22ec96465845ea", kill_on_drop: false }`
[INFO] [stdout] 6a0b2330d53c06138fff40b6cf81081280b0d37b72a77bfc1a22ec96465845ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d044c92c92940118cd2f396b6d253eba35ce525f7a50996b2dea3aa2fa4f4de9
[INFO] running `Command { std: "docker" "start" "-a" "d044c92c92940118cd2f396b6d253eba35ce525f7a50996b2dea3aa2fa4f4de9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking 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: 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: 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "d044c92c92940118cd2f396b6d253eba35ce525f7a50996b2dea3aa2fa4f4de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d044c92c92940118cd2f396b6d253eba35ce525f7a50996b2dea3aa2fa4f4de9", kill_on_drop: false }`
[INFO] [stdout] d044c92c92940118cd2f396b6d253eba35ce525f7a50996b2dea3aa2fa4f4de9