[INFO] fetching crate doubter-impl 0.1.0...
[INFO] testing doubter-impl-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate doubter-impl 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate doubter-impl 0.1.0 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 crates.io crate doubter-impl 0.1.0
[INFO] finished tweaking crates.io crate doubter-impl 0.1.0
[INFO] tweaked toml for crates.io crate doubter-impl 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c2e99c9c8851b839863ee9a60abf436fa502d82f987b259d6cee05a11bd5c6db
[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" "c2e99c9c8851b839863ee9a60abf436fa502d82f987b259d6cee05a11bd5c6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2e99c9c8851b839863ee9a60abf436fa502d82f987b259d6cee05a11bd5c6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2e99c9c8851b839863ee9a60abf436fa502d82f987b259d6cee05a11bd5c6db", kill_on_drop: false }`
[INFO] [stdout] c2e99c9c8851b839863ee9a60abf436fa502d82f987b259d6cee05a11bd5c6db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] e8b468d5a17fe6ca22250c98a81219940c00e5d2aaa7c41bece225f92a51d87c
[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" "e8b468d5a17fe6ca22250c98a81219940c00e5d2aaa7c41bece225f92a51d87c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling doubter-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/util.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |     E: Into<Box<StdError + Send + Sync + 'static>>,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + Sync + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/util.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |         String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) });
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.81s
[INFO] running `Command { std: "docker" "inspect" "e8b468d5a17fe6ca22250c98a81219940c00e5d2aaa7c41bece225f92a51d87c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b468d5a17fe6ca22250c98a81219940c00e5d2aaa7c41bece225f92a51d87c", kill_on_drop: false }`
[INFO] [stdout] e8b468d5a17fe6ca22250c98a81219940c00e5d2aaa7c41bece225f92a51d87c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] e1f5dcde0c5646a91f57a396c9b2f444193f21e825f3921b9ad55b4833fddf86
[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" "e1f5dcde0c5646a91f57a396c9b2f444193f21e825f3921b9ad55b4833fddf86", kill_on_drop: false }`
[INFO] [stderr]    Compiling doubter-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/util.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |     E: Into<Box<StdError + Send + Sync + 'static>>,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + Sync + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/util.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |         String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) });
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/util.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |     E: Into<Box<StdError + Send + Sync + 'static>>,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + Sync + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]   --> src/util.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |         String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) });
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.05s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e1f5dcde0c5646a91f57a396c9b2f444193f21e825f3921b9ad55b4833fddf86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1f5dcde0c5646a91f57a396c9b2f444193f21e825f3921b9ad55b4833fddf86", kill_on_drop: false }`
[INFO] [stdout] e1f5dcde0c5646a91f57a396c9b2f444193f21e825f3921b9ad55b4833fddf86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] b6d04c2ca9244c29f6774531a9f08592e5eebc0e46230d75078d699a642aac40
[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" "b6d04c2ca9244c29f6774531a9f08592e5eebc0e46230d75078d699a642aac40", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/util.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 |     E: Into<Box<StdError + Send + Sync + 'static>>,
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + Sync + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around function argument
[INFO] [stderr]   --> src/util.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |         String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) });
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/util.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 |     E: Into<Box<StdError + Send + Sync + 'static>>,
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + Sync + 'static`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around function argument
[INFO] [stderr]   --> src/util.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |         String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) });
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[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/doubter_impl-890096eaf3f6054a
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests doubter-impl
[INFO] [stdout] running 4 tests
[INFO] [stdout] test extract::tests::test_single_block ... ok
[INFO] [stdout] test render::sanitize::test_sanitize ... ok
[INFO] [stdout] test tree::normalize_path::test_normalize_path ... ok
[INFO] [stdout] test extract::tests::test_no_blocks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary braces around function argument
[INFO] [stderr]   --> /opt/rustwide/workdir/src/util.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |         String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) });
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b6d04c2ca9244c29f6774531a9f08592e5eebc0e46230d75078d699a642aac40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d04c2ca9244c29f6774531a9f08592e5eebc0e46230d75078d699a642aac40", kill_on_drop: false }`
[INFO] [stdout] b6d04c2ca9244c29f6774531a9f08592e5eebc0e46230d75078d699a642aac40