[INFO] cloning repository https://github.com/tigranmt/Diff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tigranmt/Diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftigranmt%2FDiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftigranmt%2FDiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c41faf6455ec5b788adfe341c98cec00d9cf2712
[INFO] testing tigranmt/Diff against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftigranmt%2FDiff" "/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/tigranmt/Diff on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tigranmt/Diff
[INFO] finished tweaking git repo https://github.com/tigranmt/Diff
[INFO] tweaked toml for git repo https://github.com/tigranmt/Diff written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tigranmt/Diff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 765907785e4c91a7cf7573d26502677ab369df446e2c3288658d306cad9507e3
[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" "765907785e4c91a7cf7573d26502677ab369df446e2c3288658d306cad9507e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "765907785e4c91a7cf7573d26502677ab369df446e2c3288658d306cad9507e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765907785e4c91a7cf7573d26502677ab369df446e2c3288658d306cad9507e3", kill_on_drop: false }`
[INFO] [stdout] 765907785e4c91a7cf7573d26502677ab369df446e2c3288658d306cad9507e3
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc19bab316d0c4f5cca96cce26ddb0bdb897ff290afd4e10f69c23dc9f1b1ee1
[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" "cc19bab316d0c4f5cca96cce26ddb0bdb897ff290afd4e10f69c23dc9f1b1ee1", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/diff/presenter.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 |     writer : Box<std::io::Write>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[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/diff/presenter.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new (_w : Box<std::io::Write>) -> DiffPresenter        
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "cc19bab316d0c4f5cca96cce26ddb0bdb897ff290afd4e10f69c23dc9f1b1ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc19bab316d0c4f5cca96cce26ddb0bdb897ff290afd4e10f69c23dc9f1b1ee1", kill_on_drop: false }`
[INFO] [stdout] cc19bab316d0c4f5cca96cce26ddb0bdb897ff290afd4e10f69c23dc9f1b1ee1
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1edd74f2732d2165e3dc09b7fa34e3ea50a8219a13ee20f14026e7e9ff0c4c0a
[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" "1edd74f2732d2165e3dc09b7fa34e3ea50a8219a13ee20f14026e7e9ff0c4c0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/diff/presenter.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 |     writer : Box<std::io::Write>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[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/diff/presenter.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new (_w : Box<std::io::Write>) -> DiffPresenter        
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "1edd74f2732d2165e3dc09b7fa34e3ea50a8219a13ee20f14026e7e9ff0c4c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1edd74f2732d2165e3dc09b7fa34e3ea50a8219a13ee20f14026e7e9ff0c4c0a", kill_on_drop: false }`
[INFO] [stdout] 1edd74f2732d2165e3dc09b7fa34e3ea50a8219a13ee20f14026e7e9ff0c4c0a
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 49f7e28562da6c60331c36d927df8d2873f8e60f5ed099790eaa93cdf4c96dae
[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" "49f7e28562da6c60331c36d927df8d2873f8e60f5ed099790eaa93cdf4c96dae", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 12 tests
[INFO] [stderr]   --> src/diff/presenter.rs:10:18
[INFO] [stderr]    |
[INFO] [stderr] 10 |     writer : Box<std::io::Write>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/diff/presenter.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new (_w : Box<std::io::Write>) -> DiffPresenter        
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/diff-236a207e69ea4c52
[INFO] [stdout] test diff::difflib::tests::add_character ... ok
[INFO] [stdout] test diff::difflib::tests::empty_strings ... ok
[INFO] [stdout] test diff::difflib::tests::remove_multiple_characters ... ok
[INFO] [stdout] test diff::difflib::tests::add_to_empty ... ok
[INFO] [stdout] test diff::difflib::tests::update_remove ... ok
[INFO] [stdout] test diff::difflib::tests::update_arm ... ok
[INFO] [stdout] test diff::difflib::tests::remove_to_empty ... ok
[INFO] [stdout] test diff::difflib::tests::equal_strings ... ok
[INFO] [stdout] test diff::difflib::tests::remove_ch ... ok
[INFO] [stdout] test diff::difflib::tests::swap_first_characters ... ok
[INFO] [stdout] test diff::difflib::tests::swap_characters ... ok
[INFO] [stdout] test diff::difflib::tests::update_add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "49f7e28562da6c60331c36d927df8d2873f8e60f5ed099790eaa93cdf4c96dae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f7e28562da6c60331c36d927df8d2873f8e60f5ed099790eaa93cdf4c96dae", kill_on_drop: false }`
[INFO] [stdout] 49f7e28562da6c60331c36d927df8d2873f8e60f5ed099790eaa93cdf4c96dae