[INFO] fetching crate indent_write 2.2.0...
[INFO] testing indent_write-2.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate indent_write 2.2.0 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate indent_write 2.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate indent_write 2.2.0
[INFO] finished tweaking crates.io crate indent_write 2.2.0
[INFO] tweaked toml for crates.io crate indent_write 2.2.0 written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6d6d2308ff00e5afcdc29d0b44877b348fb7419721f2fcbe779b78876368862
[INFO] running `Command { std: "docker" "start" "-a" "c6d6d2308ff00e5afcdc29d0b44877b348fb7419721f2fcbe779b78876368862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6d6d2308ff00e5afcdc29d0b44877b348fb7419721f2fcbe779b78876368862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6d6d2308ff00e5afcdc29d0b44877b348fb7419721f2fcbe779b78876368862", kill_on_drop: false }`
[INFO] [stdout] c6d6d2308ff00e5afcdc29d0b44877b348fb7419721f2fcbe779b78876368862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 241c5f81ddb0c84bdbc63a443f3ac54a8efe777d12e3d703d64833e5e9315055
[INFO] running `Command { std: "docker" "start" "-a" "241c5f81ddb0c84bdbc63a443f3ac54a8efe777d12e3d703d64833e5e9315055", kill_on_drop: false }`
[INFO] [stderr]    Compiling indent_write v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/io.rs:131:66
[INFO] [stdout]     |
[INFO] [stdout] 131 |                         break self.writer.write(&buf[..len + 1]).inspect(|&n| {
[INFO] [stdout]     |                                                                  ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/io.rs:154:62
[INFO] [stdout]     |
[INFO] [stdout] 154 |                         break self.writer.write(&buf[..len]).inspect(|&n| {
[INFO] [stdout]     |                                                              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "241c5f81ddb0c84bdbc63a443f3ac54a8efe777d12e3d703d64833e5e9315055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "241c5f81ddb0c84bdbc63a443f3ac54a8efe777d12e3d703d64833e5e9315055", kill_on_drop: false }`
[INFO] [stdout] 241c5f81ddb0c84bdbc63a443f3ac54a8efe777d12e3d703d64833e5e9315055
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b3321a66bff5d470b619210a58ca5cf75580f7d9d27e66b7c94d0667edf5b28
[INFO] running `Command { std: "docker" "start" "-a" "7b3321a66bff5d470b619210a58ca5cf75580f7d9d27e66b7c94d0667edf5b28", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/io.rs:131:66
[INFO] [stdout]     |
[INFO] [stdout] 131 |                         break self.writer.write(&buf[..len + 1]).inspect(|&n| {
[INFO] [stdout]     |                                                                  ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling indent_write v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/io.rs:154:62
[INFO] [stdout]     |
[INFO] [stdout] 154 |                         break self.writer.write(&buf[..len]).inspect(|&n| {
[INFO] [stdout]     |                                                              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/io.rs:131:66
[INFO] [stdout]     |
[INFO] [stdout] 131 |                         break self.writer.write(&buf[..len + 1]).inspect(|&n| {
[INFO] [stdout]     |                                                                  ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/io.rs:154:62
[INFO] [stdout]     |
[INFO] [stdout] 154 |                         break self.writer.write(&buf[..len]).inspect(|&n| {
[INFO] [stdout]     |                                                              ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "7b3321a66bff5d470b619210a58ca5cf75580f7d9d27e66b7c94d0667edf5b28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b3321a66bff5d470b619210a58ca5cf75580f7d9d27e66b7c94d0667edf5b28", kill_on_drop: false }`
[INFO] [stdout] 7b3321a66bff5d470b619210a58ca5cf75580f7d9d27e66b7c94d0667edf5b28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 71e894b1722411ceee0ff9aba1c4515b877849c2788352f0c80802a6d9ad87fd
[INFO] running `Command { std: "docker" "start" "-a" "71e894b1722411ceee0ff9aba1c4515b877849c2788352f0c80802a6d9ad87fd", kill_on_drop: false }`
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout] 
[INFO] [stderr]    --> src/io.rs:131:66
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 131 |                         break self.writer.write(&buf[..len + 1]).inspect(|&n| {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                                                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] running 7 tests
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout] test basic_test ... ok
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout] test test_partial_writes ... ok
[INFO] [stderr]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stdout] test test_partial_writes_combined ... ok
[INFO] [stderr] 
[INFO] [stdout] test test_multi_indent ... ok
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout] test test_prefix ... ok
[INFO] [stderr]    --> src/io.rs:154:62
[INFO] [stdout] test test_partial_simple_indent_writes ... ok
[INFO] [stderr]     |
[INFO] [stdout] test test_partial_simple_indent_writes_inverted ... ok
[INFO] [stderr] 154 |                         break self.writer.write(&buf[..len]).inspect(|&n| {
[INFO] [stdout] 
[INFO] [stderr]     |                                                              ^^^^^^^
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `Inspect::inspect(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: `indent_write` (lib) generated 2 warnings
[INFO] [stderr] warning: `indent_write` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/indent_write-39dcce59ccbc7f40)
[INFO] [stderr]      Running tests/fmt.rs (/opt/rustwide/target/debug/deps/fmt-29a740e8c64af88b)
[INFO] [stderr]      Running tests/io.rs (/opt/rustwide/target/debug/deps/io-3fe1498d794f13b4)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_partial_simple_indent_writes ... ok
[INFO] [stdout] test test_multi_indent ... ok
[INFO] [stdout] test basic_test ... ok
[INFO] [stdout] test test_partial_writes_combined ... ok
[INFO] [stdout] test test_prefix ... ok
[INFO] [stdout] test test_partial_writes ... ok
[INFO] [stdout] test test_partial_simple_indent_writes_inverted ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests indent_write
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/fmt.rs - fmt::IndentWriter::new_skip_initial (line 51) ... ok
[INFO] [stdout] test src/indentable.rs - indentable::Indentable::indented_skip_initial (line 33) ... ok
[INFO] [stdout] test src/io.rs - io::IndentWriter (line 31) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::IndentWriter (line 12) ... ok
[INFO] [stdout] test src/indentable.rs - indentable::Indentable::indented (line 13) ... ok
[INFO] [stdout] test src/io.rs - io::IndentWriter::new_skip_initial (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.77s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "71e894b1722411ceee0ff9aba1c4515b877849c2788352f0c80802a6d9ad87fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e894b1722411ceee0ff9aba1c4515b877849c2788352f0c80802a6d9ad87fd", kill_on_drop: false }`
[INFO] [stdout] 71e894b1722411ceee0ff9aba1c4515b877849c2788352f0c80802a6d9ad87fd