[INFO] cloning repository https://github.com/jhg/hashed-email-cracker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jhg/hashed-email-cracker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhg%2Fhashed-email-cracker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhg%2Fhashed-email-cracker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a81dcb1ed70988bb722b99f62af2c830ab3db5fa
[INFO] checking jhg/hashed-email-cracker 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%2Fjhg%2Fhashed-email-cracker" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jhg/hashed-email-cracker
[INFO] finished tweaking git repo https://github.com/jhg/hashed-email-cracker
[INFO] tweaked toml for git repo https://github.com/jhg/hashed-email-cracker written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jhg/hashed-email-cracker 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/jhg/hashed-email-cracker 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 707d082ec336159e241179306bcbd2f9ebad0725ffdd2a7e582381064df30962
[INFO] running `Command { std: "docker" "start" "-a" "707d082ec336159e241179306bcbd2f9ebad0725ffdd2a7e582381064df30962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "707d082ec336159e241179306bcbd2f9ebad0725ffdd2a7e582381064df30962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "707d082ec336159e241179306bcbd2f9ebad0725ffdd2a7e582381064df30962", kill_on_drop: false }`
[INFO] [stdout] 707d082ec336159e241179306bcbd2f9ebad0725ffdd2a7e582381064df30962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c15645f92779310dde44cbdefcbf2ad3d5f289ab273bd1e8af6179f58539edf2
[INFO] running `Command { std: "docker" "start" "-a" "c15645f92779310dde44cbdefcbf2ad3d5f289ab273bd1e8af6179f58539edf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[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 either v1.6.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking hashed-email-cracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | /     #[structopt(short, long)]
[INFO] [stdout] 116 | |     domains: Vec<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]    --> src/main.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | /     #[structopt(short, long)]
[INFO] [stdout] 118 | |     hashed_emails: Vec<String>,
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 | /     #[structopt(short, long, default_value = " -> ")]
[INFO] [stdout] 122 | |     separator: String,
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | /     #[structopt(short, long)]
[INFO] [stdout] 116 | |     domains: Vec<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]    --> src/main.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | /     #[structopt(short, long)]
[INFO] [stdout] 118 | |     hashed_emails: Vec<String>,
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 | /     #[structopt(short, long, default_value = " -> ")]
[INFO] [stdout] 122 | |     separator: String,
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hashed-email-cracker` (bin "hashed-email-cracker" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hashed-email-cracker` (bin "hashed-email-cracker") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "c15645f92779310dde44cbdefcbf2ad3d5f289ab273bd1e8af6179f58539edf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15645f92779310dde44cbdefcbf2ad3d5f289ab273bd1e8af6179f58539edf2", kill_on_drop: false }`
[INFO] [stdout] c15645f92779310dde44cbdefcbf2ad3d5f289ab273bd1e8af6179f58539edf2