[INFO] fetching crate pretty-trait 0.1.2...
[INFO] testing pretty-trait-0.1.2 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate pretty-trait 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate pretty-trait 0.1.2 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pretty-trait 0.1.2
[INFO] finished tweaking crates.io crate pretty-trait 0.1.2
[INFO] tweaked toml for crates.io crate pretty-trait 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21d54d24ee886caf485247ec687f9a403e18eecd98fa3ee9d1baf99e6b607fc0
[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" "21d54d24ee886caf485247ec687f9a403e18eecd98fa3ee9d1baf99e6b607fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21d54d24ee886caf485247ec687f9a403e18eecd98fa3ee9d1baf99e6b607fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d54d24ee886caf485247ec687f9a403e18eecd98fa3ee9d1baf99e6b607fc0", kill_on_drop: false }`
[INFO] [stdout] 21d54d24ee886caf485247ec687f9a403e18eecd98fa3ee9d1baf99e6b607fc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 095be3f1ff0a3de2c94bdaecbea569244e3202c27e08736859394415340e4ef0
[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" "095be3f1ff0a3de2c94bdaecbea569244e3202c27e08736859394415340e4ef0", kill_on_drop: false }`
[INFO] [stderr]    Compiling pretty-trait v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:143:25
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub writer: &'a mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^ help: use `dyn`: `dyn 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/lib.rs:614:18
[INFO] [stdout]     |
[INFO] [stdout] 614 |     writer: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn 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 0.82s
[INFO] running `Command { std: "docker" "inspect" "095be3f1ff0a3de2c94bdaecbea569244e3202c27e08736859394415340e4ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "095be3f1ff0a3de2c94bdaecbea569244e3202c27e08736859394415340e4ef0", kill_on_drop: false }`
[INFO] [stdout] 095be3f1ff0a3de2c94bdaecbea569244e3202c27e08736859394415340e4ef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e4f0b02bb317ff3e3b6838bc37988e4b95e3d12e080977d7fbe403dc7800c58
[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" "5e4f0b02bb317ff3e3b6838bc37988e4b95e3d12e080977d7fbe403dc7800c58", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:143:25
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub writer: &'a mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty-trait v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:614:18
[INFO] [stdout]     |
[INFO] [stdout] 614 |     writer: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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/lib.rs:143:25
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub writer: &'a mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^ help: use `dyn`: `dyn 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/lib.rs:614:18
[INFO] [stdout]     |
[INFO] [stdout] 614 |     writer: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn 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 1.07s
[INFO] running `Command { std: "docker" "inspect" "5e4f0b02bb317ff3e3b6838bc37988e4b95e3d12e080977d7fbe403dc7800c58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e4f0b02bb317ff3e3b6838bc37988e4b95e3d12e080977d7fbe403dc7800c58", kill_on_drop: false }`
[INFO] [stdout] 5e4f0b02bb317ff3e3b6838bc37988e4b95e3d12e080977d7fbe403dc7800c58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75a359163159686fd5860961ce9749d1f5ee5b78e42014882428e0b90010f708
[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" "75a359163159686fd5860961ce9749d1f5ee5b78e42014882428e0b90010f708", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:143:25
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub writer: &'a mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^ help: use `dyn`: `dyn 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/lib.rs:614:18
[INFO] [stderr]     |
[INFO] [stderr] 614 |     writer: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:143:25
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub writer: &'a mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^ help: use `dyn`: `dyn 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/lib.rs:614:18
[INFO] [stderr]     |
[INFO] [stderr] 614 |     writer: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pretty_trait-e87f5cbd47a3c64e
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pretty-trait
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/lib.rs - Seq (line 581) ... ok
[INFO] [stdout] test src/lib.rs - Option<T> (line 760) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 545) ... ok
[INFO] [stdout] test src/lib.rs - JoinExt::join (line 516) ... ok
[INFO] [stdout] test src/lib.rs - Sep (line 347) ... ok
[INFO] [stdout] test src/lib.rs - Newline (line 392) ... ok
[INFO] [stdout] test src/lib.rs - Option<T> (line 736) ... ok
[INFO] [stdout] test src/lib.rs - Conditional (line 665) ... ok
[INFO] [stdout] test src/lib.rs - Sep (line 321) ... ok
[INFO] [stdout] test src/lib.rs - Group (line 243) ... ok
[INFO] [stdout] test src/lib.rs - Indent (line 424) ... ok
[INFO] [stdout] test src/lib.rs - block (line 835) ... ok
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] test src/lib.rs - delimited (line 794) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "75a359163159686fd5860961ce9749d1f5ee5b78e42014882428e0b90010f708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a359163159686fd5860961ce9749d1f5ee5b78e42014882428e0b90010f708", kill_on_drop: false }`
[INFO] [stdout] 75a359163159686fd5860961ce9749d1f5ee5b78e42014882428e0b90010f708