[INFO] cloning repository https://github.com/arnavb/tree-clone-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arnavb/tree-clone-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnavb%2Ftree-clone-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnavb%2Ftree-clone-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51477bfb8d351e57e85a60c3fa663ccbf8cf1641
[INFO] testing arnavb/tree-clone-rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnavb%2Ftree-clone-rs" "/workspace/builds/worker-66/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-66/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arnavb/tree-clone-rs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arnavb/tree-clone-rs
[INFO] finished tweaking git repo https://github.com/arnavb/tree-clone-rs
[INFO] tweaked toml for git repo https://github.com/arnavb/tree-clone-rs written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] crate git repo https://github.com/arnavb/tree-clone-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 793d520c58b2907e51dddb68876a5de7ebcfbf8757216866fde160918fa97f44
[INFO] running `Command { std: "docker" "start" "-a" "793d520c58b2907e51dddb68876a5de7ebcfbf8757216866fde160918fa97f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "793d520c58b2907e51dddb68876a5de7ebcfbf8757216866fde160918fa97f44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "793d520c58b2907e51dddb68876a5de7ebcfbf8757216866fde160918fa97f44", kill_on_drop: false }`
[INFO] [stdout] 793d520c58b2907e51dddb68876a5de7ebcfbf8757216866fde160918fa97f44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a751d59fb65e053e7c31b5874f84cf1d82d0cdb2120ded33a119a998c245c4f8
[INFO] running `Command { std: "docker" "start" "-a" "a751d59fb65e053e7c31b5874f84cf1d82d0cdb2120ded33a119a998c245c4f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling tree-clone-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn cli() -> Result<(), Box<StdError>> {
[INFO] [stdout]    |                            ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.40s
[INFO] running `Command { std: "docker" "inspect" "a751d59fb65e053e7c31b5874f84cf1d82d0cdb2120ded33a119a998c245c4f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a751d59fb65e053e7c31b5874f84cf1d82d0cdb2120ded33a119a998c245c4f8", kill_on_drop: false }`
[INFO] [stdout] a751d59fb65e053e7c31b5874f84cf1d82d0cdb2120ded33a119a998c245c4f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e00be0862b464e58d39f9d472416d0ad51e81a8f5d6cbeb383ce0fd0b2e5f03
[INFO] running `Command { std: "docker" "start" "-a" "2e00be0862b464e58d39f9d472416d0ad51e81a8f5d6cbeb383ce0fd0b2e5f03", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tree-clone-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn cli() -> Result<(), Box<StdError>> {
[INFO] [stdout]    |                            ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "2e00be0862b464e58d39f9d472416d0ad51e81a8f5d6cbeb383ce0fd0b2e5f03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e00be0862b464e58d39f9d472416d0ad51e81a8f5d6cbeb383ce0fd0b2e5f03", kill_on_drop: false }`
[INFO] [stdout] 2e00be0862b464e58d39f9d472416d0ad51e81a8f5d6cbeb383ce0fd0b2e5f03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 057474fd637c4b23b957348526fdc66ed63e72c51934f9f99991809005798728
[INFO] running `Command { std: "docker" "start" "-a" "057474fd637c4b23b957348526fdc66ed63e72c51934f9f99991809005798728", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:39:28
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn cli() -> Result<(), Box<StdError>> {
[INFO] [stderr]    |                            ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `tree-clone-rs` (bin "tree-clone-rs" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tree_clone_rs-18802dfd6d93b9a1)
[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" "057474fd637c4b23b957348526fdc66ed63e72c51934f9f99991809005798728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "057474fd637c4b23b957348526fdc66ed63e72c51934f9f99991809005798728", kill_on_drop: false }`
[INFO] [stdout] 057474fd637c4b23b957348526fdc66ed63e72c51934f9f99991809005798728