[INFO] cloning repository https://github.com/wgoodall01/monch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wgoodall01/monch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgoodall01%2Fmonch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgoodall01%2Fmonch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e40a16e25a883746978107d442109bf2ee924d41
[INFO] checking wgoodall01/monch against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwgoodall01%2Fmonch" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/wgoodall01/monch
[INFO] finished tweaking git repo https://github.com/wgoodall01/monch
[INFO] tweaked toml for git repo https://github.com/wgoodall01/monch written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wgoodall01/monch 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 git repo https://github.com/wgoodall01/monch 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8582d66adaaedcd6ffd1e89058772e6b9359ddd90077bad83feac14f76ebca24
[INFO] running `Command { std: "docker" "start" "-a" "8582d66adaaedcd6ffd1e89058772e6b9359ddd90077bad83feac14f76ebca24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8582d66adaaedcd6ffd1e89058772e6b9359ddd90077bad83feac14f76ebca24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8582d66adaaedcd6ffd1e89058772e6b9359ddd90077bad83feac14f76ebca24", kill_on_drop: false }`
[INFO] [stdout] 8582d66adaaedcd6ffd1e89058772e6b9359ddd90077bad83feac14f76ebca24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a3dbfa625f684245ca05ca55ccf167f0351c40ec3fc5ae03f9046e725b65c0de
[INFO] running `Command { std: "docker" "start" "-a" "a3dbfa625f684245ca05ca55ccf167f0351c40ec3fc5ae03f9046e725b65c0de", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling anyhow v1.0.47
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking owo-colors v3.1.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking similar v1.3.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking fd-lock v3.0.0
[INFO] [stderr]     Checking nix v0.22.2
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking which v4.2.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking rustyline v9.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking ciborium v0.2.0
[INFO] [stderr]     Checking monch_syntax v0.1.0 (/opt/rustwide/workdir/monch_syntax)
[INFO] [stderr]     Checking serde_yaml v0.8.21
[INFO] [stderr]     Checking monch_io v0.1.0 (/opt/rustwide/workdir/monch_io)
[INFO] [stderr]     Checking monch_shell v0.1.0 (/opt/rustwide/workdir/monch_shell)
[INFO] [stderr]     Checking monch_util_get v0.1.0 (/opt/rustwide/workdir/monch_util_get)
[INFO] [stderr]     Checking monch_util_ls v0.1.0 (/opt/rustwide/workdir/monch_util_ls)
[INFO] [stderr]     Checking monch_util_sed v0.1.0 (/opt/rustwide/workdir/monch_util_sed)
[INFO] [stderr]     Checking monch_util_grep v0.1.0 (/opt/rustwide/workdir/monch_util_grep)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> monch_util_grep/src/bin/grep.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// The path to the field to extract, like '.outerMap.innerMap.2'
[INFO] [stdout] 10 | |     pattern: String,
[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: Result<String, Infallible>
[INFO] [stdout]   --> monch_util_grep/src/bin/grep.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// The path to the field to extract, like '.outerMap.innerMap.2'
[INFO] [stdout] 10 | |     pattern: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monch_util_grep` (bin "grep") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `DirEntry` is never constructed
[INFO] [stdout]   --> monch_util_ls/src/bin/ls.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct DirEntry {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> monch_util_ls/src/bin/ls.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     directory: Option<PathBuf>,
[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: Result<String, Infallible>
[INFO] [stdout]   --> monch_util_sed/src/bin/sed.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// The pattern to replace
[INFO] [stdout] 10 | |     pattern: String,
[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: Result<String, Infallible>
[INFO] [stdout]   --> monch_util_sed/src/bin/sed.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     replacement: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monch_util_ls` (bin "ls" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] error: could not compile `monch_util_grep` (bin "grep" test) due to 1 previous error
[INFO] [stderr] error: could not compile `monch_util_sed` (bin "sed" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> monch_util_sed/src/bin/sed.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// The pattern to replace
[INFO] [stdout] 10 | |     pattern: String,
[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: Result<String, Infallible>
[INFO] [stdout]   --> monch_util_sed/src/bin/sed.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     replacement: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monch_util_sed` (bin "sed") due to 2 previous errors
[INFO] [stdout] warning: struct `DirEntry` is never constructed
[INFO] [stdout]   --> monch_util_ls/src/bin/ls.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct DirEntry {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> monch_util_ls/src/bin/ls.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     directory: Option<PathBuf>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monch_util_ls` (bin "ls") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a3dbfa625f684245ca05ca55ccf167f0351c40ec3fc5ae03f9046e725b65c0de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3dbfa625f684245ca05ca55ccf167f0351c40ec3fc5ae03f9046e725b65c0de", kill_on_drop: false }`
[INFO] [stdout] a3dbfa625f684245ca05ca55ccf167f0351c40ec3fc5ae03f9046e725b65c0de
