[INFO] cloning repository https://github.com/mamidon/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mamidon/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmamidon%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmamidon%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbeeb29db044b62e252b1b4719ecc026c1a16963
[INFO] checking mamidon/rlox against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmamidon%2Frlox" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mamidon/rlox on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mamidon/rlox
[INFO] finished tweaking git repo https://github.com/mamidon/rlox
[INFO] tweaked toml for git repo https://github.com/mamidon/rlox written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mamidon/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60f919a503349ebce60fa708fd735d0434e832a47c1969fd080d25009dca2c9f
[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" "60f919a503349ebce60fa708fd735d0434e832a47c1969fd080d25009dca2c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60f919a503349ebce60fa708fd735d0434e832a47c1969fd080d25009dca2c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f919a503349ebce60fa708fd735d0434e832a47c1969fd080d25009dca2c9f", kill_on_drop: false }`
[INFO] [stdout] 60f919a503349ebce60fa708fd735d0434e832a47c1969fd080d25009dca2c9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--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] 74b86bce7a1e3d9f66f277cd0bad157e4b189a101e701b0a6c48e4a69f11dc73
[INFO] running `Command { std: "docker" "start" "-a" "74b86bce7a1e3d9f66f277cd0bad157e4b189a101e701b0a6c48e4a69f11dc73", kill_on_drop: false }`
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/scanning/seq.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     source: &'a mut Iterator<Item=T>,
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=T>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/scanning/seq.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     source: &'a mut Iterator<Item=T>,
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=T>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/scanning/seq.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(source: &'a mut Iterator<Item=T>) -> CharacterSequence<'a, T> {
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/runtime.rs:191:74
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn binary_numbers_action(left: &LoxValue, right: &LoxValue, action: &Fn(f64, f64) -> f64)
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:31:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |     use std::io::Write;;
[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:37:84
[INFO] [stdout]    |
[INFO] [stdout] 37 |         std::io::stdout().flush().expect("There was a problem writing to console");;
[INFO] [stdout]    |                                                                                    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/scanning/seq.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(source: &'a mut Iterator<Item=T>) -> CharacterSequence<'a, T> {
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/runtime.rs:191:74
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn binary_numbers_action(left: &LoxValue, right: &LoxValue, action: &Fn(f64, f64) -> f64)
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:31:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |     use std::io::Write;;
[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:37:84
[INFO] [stdout]    |
[INFO] [stdout] 37 |         std::io::stdout().flush().expect("There was a problem writing to console");;
[INFO] [stdout]    |                                                                                    ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "74b86bce7a1e3d9f66f277cd0bad157e4b189a101e701b0a6c48e4a69f11dc73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b86bce7a1e3d9f66f277cd0bad157e4b189a101e701b0a6c48e4a69f11dc73", kill_on_drop: false }`
[INFO] [stdout] 74b86bce7a1e3d9f66f277cd0bad157e4b189a101e701b0a6c48e4a69f11dc73