[INFO] fetching crate ifcfg-devname 1.1.1...
[INFO] checking ifcfg-devname-1.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ifcfg-devname 1.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ifcfg-devname 1.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ifcfg-devname 1.1.1
[INFO] tweaked toml for crates.io crate ifcfg-devname 1.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ifcfg-devname 1.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ifcfg-devname 1.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dc8c3f94627297d6b47bcf8175b4c4c4c7fa9832664987af722678703da5148
[INFO] running `Command { std: "docker" "start" "-a" "0dc8c3f94627297d6b47bcf8175b4c4c4c7fa9832664987af722678703da5148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dc8c3f94627297d6b47bcf8175b4c4c4c7fa9832664987af722678703da5148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc8c3f94627297d6b47bcf8175b4c4c4c7fa9832664987af722678703da5148", kill_on_drop: false }`
[INFO] [stdout] 0dc8c3f94627297d6b47bcf8175b4c4c4c7fa9832664987af722678703da5148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 924facd549929548f9134f0bcf49db78f215bd860a52bd239e14091ba1734ce8
[INFO] running `Command { std: "docker" "start" "-a" "924facd549929548f9134f0bcf49db78f215bd860a52bd239e14091ba1734ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling assert_cmd v2.0.15
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking predicates-tree v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking bstr v1.6.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking time v0.3.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking syslog v6.1.0
[INFO] [stderr]     Checking stderrlog v0.6.0
[INFO] [stderr]     Checking mac_address v1.1.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]     Checking predicates v3.1.2
[INFO] [stderr]     Checking ifcfg-devname v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parser.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 device = Some(capture[1].parse()?);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/parser.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 device = Some(capture[1].parse()?);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ifcfg-devname` (bin "ifcfg-devname") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "924facd549929548f9134f0bcf49db78f215bd860a52bd239e14091ba1734ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924facd549929548f9134f0bcf49db78f215bd860a52bd239e14091ba1734ce8", kill_on_drop: false }`
[INFO] [stdout] 924facd549929548f9134f0bcf49db78f215bd860a52bd239e14091ba1734ce8
