[INFO] fetching crate mn 0.2.1...
[INFO] checking mn-0.2.1 against master#3c9faa0d037b9eecda4a440cc482ff7f960fb8a5 for pr-152210
[INFO] extracting crate mn 0.2.1 into /workspace/builds/worker-3-tc1/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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mn 0.2.1 on toolchain 3c9faa0d037b9eecda4a440cc482ff7f960fb8a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3c9faa0d037b9eecda4a440cc482ff7f960fb8a5" "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" "+3c9faa0d037b9eecda4a440cc482ff7f960fb8a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 153 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.5.59)
[INFO] [stderr]       Adding colored v1.9.4 (available: v3.1.1)
[INFO] [stderr]       Adding directories v1.0.2 (available: v6.0.0)
[INFO] [stderr]       Adding open v1.7.1 (available: v5.3.3)
[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" "+3c9faa0d037b9eecda4a440cc482ff7f960fb8a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safemem v0.3.3
[INFO] [stderr]   Downloaded onig v5.0.0
[INFO] [stderr]   Downloaded shell-words v0.1.0
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded encoding_index_tests v0.1.4
[INFO] [stderr]   Downloaded darling_macro v0.9.0
[INFO] [stderr]   Downloaded plist v0.4.2
[INFO] [stderr]   Downloaded roff v0.1.0
[INFO] [stderr]   Downloaded open v1.7.1
[INFO] [stderr]   Downloaded clicolors-control v0.2.0
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded ansi_colours v1.2.3
[INFO] [stderr]   Downloaded colored v1.9.4
[INFO] [stderr]   Downloaded man v0.3.0
[INFO] [stderr]   Downloaded rgb v0.8.52
[INFO] [stderr]   Downloaded encoding v0.2.33
[INFO] [stderr]   Downloaded encoding-index-korean v1.20141219.5
[INFO] [stderr]   Downloaded encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]   Downloaded encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]   Downloaded git2 v0.7.5
[INFO] [stderr]   Downloaded termios v0.3.3
[INFO] [stderr]   Downloaded darling_core v0.9.0
[INFO] [stderr]   Downloaded darling v0.9.0
[INFO] [stderr]   Downloaded derive_builder_core v0.5.0
[INFO] [stderr]   Downloaded derive_builder v0.7.2
[INFO] [stderr]   Downloaded console v0.6.2
[INFO] [stderr]   Downloaded directories v1.0.2
[INFO] [stderr]   Downloaded encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]   Downloaded libssh2-sys v0.2.23
[INFO] [stderr]   Downloaded syntect v3.3.0
[INFO] [stderr]   Downloaded prettyprint v0.3.0
[INFO] [stderr]   Downloaded libgit2-sys v0.7.11
[INFO] [stderr]   Downloaded curl-sys v0.4.85+curl-8.18.0
[INFO] [stderr]   Downloaded encoding-index-japanese v1.20141219.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+3c9faa0d037b9eecda4a440cc482ff7f960fb8a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45b7fd10778084004051a1af8f77afcd66541e17552bc1b921eb44339094c14a
[INFO] running `Command { std: "docker" "start" "-a" "45b7fd10778084004051a1af8f77afcd66541e17552bc1b921eb44339094c14a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45b7fd10778084004051a1af8f77afcd66541e17552bc1b921eb44339094c14a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45b7fd10778084004051a1af8f77afcd66541e17552bc1b921eb44339094c14a", kill_on_drop: false }`
[INFO] [stdout] 45b7fd10778084004051a1af8f77afcd66541e17552bc1b921eb44339094c14a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+3c9faa0d037b9eecda4a440cc482ff7f960fb8a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a910548130c82f1aea58fa64454ff7a4fffd18be12b232f54609ca560d83c8d
[INFO] running `Command { std: "docker" "start" "-a" "4a910548130c82f1aea58fa64454ff7a4fffd18be12b232f54609ca560d83c8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling bindgen v0.71.1
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]     Checking simd-adler32 v0.3.8
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]    Compiling syn v2.0.116
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.27
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking bytemuck v1.25.0
[INFO] [stderr]     Checking xml-rs v0.8.28
[INFO] [stderr]     Checking rgb v0.8.52
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking flate2 v1.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking ansi_colours v1.2.3
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking content_inspector v0.2.4
[INFO] [stderr]     Checking shell-words v0.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking roff v0.1.0
[INFO] [stderr]     Checking open v1.7.1
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stderr]     Checking man v0.3.0
[INFO] [stderr]    Compiling libz-sys v1.1.23
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling curl-sys v0.4.85+curl-8.18.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking console v0.6.2
[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 onig_sys v69.9.1
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]     Checking syntect v3.3.0
[INFO] [stderr]     Checking git2 v0.7.5
[INFO] [stderr]     Checking prettyprint v0.3.0
[INFO] [stderr]     Checking mn v0.2.1 (/opt/rustwide/workdir)
[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] [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: 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 1m 05s
[INFO] running `Command { std: "docker" "inspect" "4a910548130c82f1aea58fa64454ff7a4fffd18be12b232f54609ca560d83c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a910548130c82f1aea58fa64454ff7a4fffd18be12b232f54609ca560d83c8d", kill_on_drop: false }`
[INFO] [stdout] 4a910548130c82f1aea58fa64454ff7a4fffd18be12b232f54609ca560d83c8d
