[INFO] cloning repository https://github.com/sashaweiss/itree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sashaweiss/itree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsashaweiss%2Fitree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsashaweiss%2Fitree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bea57f0cf4d6fceb5d5939dda1d17be0ca68391
[INFO] checking sashaweiss/itree against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsashaweiss%2Fitree" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sashaweiss/itree on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sashaweiss/itree
[INFO] finished tweaking git repo https://github.com/sashaweiss/itree
[INFO] tweaked toml for git repo https://github.com/sashaweiss/itree written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/sashaweiss/itree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ignore v0.4.2
[INFO] [stderr]   Downloaded indextree v1.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] a02bfca8edc6c716e9cdce644d0e1c9499608e8276ae8512d59458ddcc179e27
[INFO] running `Command { std: "docker" "start" "-a" "a02bfca8edc6c716e9cdce644d0e1c9499608e8276ae8512d59458ddcc179e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a02bfca8edc6c716e9cdce644d0e1c9499608e8276ae8512d59458ddcc179e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a02bfca8edc6c716e9cdce644d0e1c9499608e8276ae8512d59458ddcc179e27", kill_on_drop: false }`
[INFO] [stdout] a02bfca8edc6c716e9cdce644d0e1c9499608e8276ae8512d59458ddcc179e27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 722e2ab68c5762fe920e9d4be73a05ae1425df0891c8607076a7060a0fcb4efe
[INFO] running `Command { std: "docker" "start" "-a" "722e2ab68c5762fe920e9d4be73a05ae1425df0891c8607076a7060a0fcb4efe", kill_on_drop: false }`
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking indextree v1.1.1
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking globset v0.4.0
[INFO] [stderr]     Checking ignore v0.4.2
[INFO] [stderr]     Checking itree v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/options.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fg_color: Box<Color>,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn Color`
[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/options.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub bg_color: Box<Color>,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/options.rs:26:43
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn fg_color(&mut self, color: Box<Color>) -> &mut Self {
[INFO] [stdout]    |                                           ^^^^^ help: use `dyn`: `dyn Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/options.rs:31:43
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn bg_color(&mut self, color: Box<Color>) -> &mut Self {
[INFO] [stdout]    |                                           ^^^^^ help: use `dyn`: `dyn Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/options.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fg_color: Box<Color>,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn Color`
[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/options.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub bg_color: Box<Color>,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/options.rs:26:43
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn fg_color(&mut self, color: Box<Color>) -> &mut Self {
[INFO] [stdout]    |                                           ^^^^^ help: use `dyn`: `dyn Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/options.rs:31:43
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn bg_color(&mut self, color: Box<Color>) -> &mut Self {
[INFO] [stdout]    |                                           ^^^^^ help: use `dyn`: `dyn Color`
[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] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/args.rs:109:37
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn string_to_color(cs: &str) -> Box<color::Color> {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[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/args.rs:109:37
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn string_to_color(cs: &str) -> Box<color::Color> {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.92s
[INFO] running `Command { std: "docker" "inspect" "722e2ab68c5762fe920e9d4be73a05ae1425df0891c8607076a7060a0fcb4efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "722e2ab68c5762fe920e9d4be73a05ae1425df0891c8607076a7060a0fcb4efe", kill_on_drop: false }`
[INFO] [stdout] 722e2ab68c5762fe920e9d4be73a05ae1425df0891c8607076a7060a0fcb4efe