[INFO] fetching crate mn 0.2.1...
[INFO] building mn-0.2.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate mn 0.2.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mn 0.2.1
[INFO] finished tweaking crates.io crate mn 0.2.1
[INFO] tweaked toml for crates.io crate mn 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mn 0.2.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 153 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.5.48)
[INFO] [stderr]       Adding colored v1.9.4 (available: v3.0.0)
[INFO] [stderr]       Adding directories v1.0.2 (available: v6.0.0)
[INFO] [stderr]       Adding open v1.7.1 (available: v5.3.2)
[INFO] [stderr]       Adding prettyprint v0.3.0 (available: v0.8.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 373d52c857a20e9efcccf5e28807da83796143ec5c6dd7ab8ae949bc895828ab
[INFO] running `Command { std: "docker" "start" "-a" "373d52c857a20e9efcccf5e28807da83796143ec5c6dd7ab8ae949bc895828ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "373d52c857a20e9efcccf5e28807da83796143ec5c6dd7ab8ae949bc895828ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "373d52c857a20e9efcccf5e28807da83796143ec5c6dd7ab8ae949bc895828ab", kill_on_drop: false }`
[INFO] [stdout] 373d52c857a20e9efcccf5e28807da83796143ec5c6dd7ab8ae949bc895828ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd45b5620b2dfc4308bad470f2b5361d5d396b00a3ca9b0c7b610f863e0230dc
[INFO] running `Command { std: "docker" "start" "-a" "fd45b5620b2dfc4308bad470f2b5361d5d396b00a3ca9b0c7b610f863e0230dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling bindgen v0.71.1
[INFO] [stderr]    Compiling libz-sys v1.1.22
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[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling darling_core v0.9.0
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[INFO] [stderr]    Compiling line-wrap v0.1.1
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[INFO] [stderr]    Compiling directories v1.0.2
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[INFO] [stderr]    Compiling man v0.3.0
[INFO] [stderr]    Compiling open v1.7.1
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling onig_sys v69.9.1
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[INFO] [stderr]    Compiling git2 v0.7.5
[INFO] [stderr]    Compiling prettyprint v0.3.0
[INFO] [stderr]    Compiling mn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> src/bin/generate-docs.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     .into_iter()
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 17 -     .into_iter()
[INFO] [stdout] 17 +     .iter()
[INFO] [stdout]    |
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 16 -     ]
[INFO] [stdout] 17 -     .into_iter()
[INFO] [stdout] 16 +     ]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `long` and `short` are never read
[INFO] [stdout]    --> src/cli.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub struct ArgValues {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 112 |     pub name: &'static str,
[INFO] [stdout] 113 |     pub long: &'static str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 114 |     pub short: &'static str,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value_name` and `default_value` are never read
[INFO] [stdout]    --> src/cli.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct OptValues {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub value_name: &'static str,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 123 |     pub default_value: &'static str,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `help`, `new`, and `version` are never read
[INFO] [stdout]    --> src/cli.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct CliText {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub help: ArgValues,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 135 |     pub new: ArgValues,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub version: ArgValues,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             open::that(&full_path).is_ok();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let _ = open::that(&full_path).is_ok();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.27s
[INFO] running `Command { std: "docker" "inspect" "fd45b5620b2dfc4308bad470f2b5361d5d396b00a3ca9b0c7b610f863e0230dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd45b5620b2dfc4308bad470f2b5361d5d396b00a3ca9b0c7b610f863e0230dc", kill_on_drop: false }`
[INFO] [stdout] fd45b5620b2dfc4308bad470f2b5361d5d396b00a3ca9b0c7b610f863e0230dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed587bc5aa49082d16d221c4242cc4b7e4964176f38dc2941f45d1ff4be72fd7
[INFO] running `Command { std: "docker" "start" "-a" "ed587bc5aa49082d16d221c4242cc4b7e4964176f38dc2941f45d1ff4be72fd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling mn v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> src/bin/generate-docs.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     .into_iter()
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 17 -     .into_iter()
[INFO] [stdout] 17 +     .iter()
[INFO] [stdout]    |
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 16 -     ]
[INFO] [stdout] 17 -     .into_iter()
[INFO] [stdout] 16 +     ]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `long` and `short` are never read
[INFO] [stdout]    --> src/cli.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub struct ArgValues {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 112 |     pub name: &'static str,
[INFO] [stdout] 113 |     pub long: &'static str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 114 |     pub short: &'static str,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value_name` and `default_value` are never read
[INFO] [stdout]    --> src/cli.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct OptValues {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub value_name: &'static str,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 123 |     pub default_value: &'static str,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `help`, `new`, and `version` are never read
[INFO] [stdout]    --> src/cli.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct CliText {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 134 |     pub help: ArgValues,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 135 |     pub new: ArgValues,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub version: ArgValues,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Result::<T, E>::is_ok` that must be used
[INFO] [stdout]   --> src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             open::that(&full_path).is_ok();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let _ = open::that(&full_path).is_ok();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "ed587bc5aa49082d16d221c4242cc4b7e4964176f38dc2941f45d1ff4be72fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed587bc5aa49082d16d221c4242cc4b7e4964176f38dc2941f45d1ff4be72fd7", kill_on_drop: false }`
[INFO] [stdout] ed587bc5aa49082d16d221c4242cc4b7e4964176f38dc2941f45d1ff4be72fd7
