[INFO] cloning repository https://github.com/dlsteuer/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dlsteuer/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlsteuer%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlsteuer%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 222b201cfc1377c83165eb66836af6a946fab062
[INFO] checking dlsteuer/rlox against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdlsteuer%2Frlox" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dlsteuer/rlox on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dlsteuer/rlox
[INFO] finished tweaking git repo https://github.com/dlsteuer/rlox
[INFO] tweaked toml for git repo https://github.com/dlsteuer/rlox written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dlsteuer/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48a89c780a9f329c0ae65cae1d975edcf97f9ceaa9b02607dcf035f6e6c632b3
[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" "48a89c780a9f329c0ae65cae1d975edcf97f9ceaa9b02607dcf035f6e6c632b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48a89c780a9f329c0ae65cae1d975edcf97f9ceaa9b02607dcf035f6e6c632b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a89c780a9f329c0ae65cae1d975edcf97f9ceaa9b02607dcf035f6e6c632b3", kill_on_drop: false }`
[INFO] [stdout] 48a89c780a9f329c0ae65cae1d975edcf97f9ceaa9b02607dcf035f6e6c632b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 233cd7b6c6448005312eb2e586b33a90088e057619a18bc1aa8a4f9132660ce1
[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" "233cd7b6c6448005312eb2e586b33a90088e057619a18bc1aa8a4f9132660ce1", kill_on_drop: false }`
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/token.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     literal: Box<Literal>,
[INFO] [stdout]   |                  ^^^^^^^ help: use `dyn`: `dyn Literal`
[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/token.rs:31:32
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn box_clone(&self) -> Box<Literal>;
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Clone for Box<Literal> {
[INFO] [stdout]    |                    ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                            ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn box_clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:70:32
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn box_clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:90:32
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn box_clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/token.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     literal: Box<Literal>,
[INFO] [stdout]   |                  ^^^^^^^ help: use `dyn`: `dyn Literal`
[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/token.rs:31:32
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn box_clone(&self) -> Box<Literal>;
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Clone for Box<Literal> {
[INFO] [stdout]    |                    ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                            ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn box_clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:70:32
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn box_clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/token.rs:90:32
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn box_clone(&self) -> Box<Literal> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]  --> src/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     line: i64,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `error`
[INFO] [stdout]   --> src/main.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn error(line: &i64, message: &String) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `report`
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn report(line: &i64, loc: &String, message: &String) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]  --> src/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     line: i64,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `error`
[INFO] [stdout]   --> src/main.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn error(line: &i64, message: &String) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `report`
[INFO] [stdout]   --> src/main.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn report(line: &i64, loc: &String, message: &String) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `Command { std: "docker" "inspect" "233cd7b6c6448005312eb2e586b33a90088e057619a18bc1aa8a4f9132660ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "233cd7b6c6448005312eb2e586b33a90088e057619a18bc1aa8a4f9132660ce1", kill_on_drop: false }`
[INFO] [stdout] 233cd7b6c6448005312eb2e586b33a90088e057619a18bc1aa8a4f9132660ce1