[INFO] fetching crate manix 0.6.3...
[INFO] checking manix-0.6.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate manix 0.6.3 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate manix 0.6.3
[INFO] finished tweaking crates.io crate manix 0.6.3
[INFO] tweaked toml for crates.io crate manix 0.6.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate manix 0.6.3 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 manix 0.6.3 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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf7bf0c3ca094d01ed4600e052964dd97e9b36e943fd406419b62493e4b1038d
[INFO] running `Command { std: "docker" "start" "-a" "cf7bf0c3ca094d01ed4600e052964dd97e9b36e943fd406419b62493e4b1038d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf7bf0c3ca094d01ed4600e052964dd97e9b36e943fd406419b62493e4b1038d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf7bf0c3ca094d01ed4600e052964dd97e9b36e943fd406419b62493e4b1038d", kill_on_drop: false }`
[INFO] [stdout] cf7bf0c3ca094d01ed4600e052964dd97e9b36e943fd406419b62493e4b1038d
[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 -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] e801fb0e1707f1a0b112b61053ff17277e1f5421d11ec9dd6a299ad2d26109ae
[INFO] running `Command { std: "docker" "start" "-a" "e801fb0e1707f1a0b112b61053ff17277e1f5421d11ec9dd6a299ad2d26109ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking thin-dst v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking text_unit v0.1.10
[INFO] [stderr]     Checking smol_str v0.1.16
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking xmlparser v0.13.2
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking rowan v0.9.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking roxmltree v0.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking cbitset v0.2.0
[INFO] [stderr]     Checking rnix v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking manix v0.6.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Path`, `fs::File`, and `io::BufReader`
[INFO] [stdout]   --> src/options_docsource.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 10 |     io::BufReader,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     path::{Path, PathBuf},
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Path`, `fs::File`, and `io::BufReader`
[INFO] [stdout]   --> src/options_docsource.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 |     fs::File,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 10 |     io::BufReader,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     path::{Path, PathBuf},
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/manix.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     #[structopt(name = "QUERY")]
[INFO] [stdout] 40 | |     query: 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 `manix` (bin "manix" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/manix.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     #[structopt(name = "QUERY")]
[INFO] [stdout] 40 | |     query: 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 `manix` (bin "manix") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e801fb0e1707f1a0b112b61053ff17277e1f5421d11ec9dd6a299ad2d26109ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e801fb0e1707f1a0b112b61053ff17277e1f5421d11ec9dd6a299ad2d26109ae", kill_on_drop: false }`
[INFO] [stdout] e801fb0e1707f1a0b112b61053ff17277e1f5421d11ec9dd6a299ad2d26109ae