[INFO] cloning repository https://github.com/riquito/tuc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/riquito/tuc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friquito%2Ftuc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friquito%2Ftuc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 115d985142516580c1b1d0d89148aa40cbebd728
[INFO] checking riquito/tuc 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%2Friquito%2Ftuc" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/riquito/tuc
[INFO] finished tweaking git repo https://github.com/riquito/tuc
[INFO] tweaked toml for git repo https://github.com/riquito/tuc written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/riquito/tuc 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/riquito/tuc 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5a735b6241791c19c757909dd9e0746edd682d3054394759d3bf419d9ea6012e
[INFO] running `Command { std: "docker" "start" "-a" "5a735b6241791c19c757909dd9e0746edd682d3054394759d3bf419d9ea6012e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a735b6241791c19c757909dd9e0746edd682d3054394759d3bf419d9ea6012e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a735b6241791c19c757909dd9e0746edd682d3054394759d3bf419d9ea6012e", kill_on_drop: false }`
[INFO] [stdout] 5a735b6241791c19c757909dd9e0746edd682d3054394759d3bf419d9ea6012e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 93da09aabca045e3775d7c1bed00f8fafde88b53a0be0d8e70d82cd0124f29da
[INFO] running `Command { std: "docker" "start" "-a" "93da09aabca045e3775d7c1bed00f8fafde88b53a0be0d8e70d82cd0124f29da", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking shlex v1.3.0
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking memmap2 v0.9.9
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking bstr v1.12.1
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking tuc v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Opt, !>
[INFO] [stdout]   --> src/bin/tuc.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |       let opt: Opt = args
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 72 | |         .try_into()
[INFO] [stdout] 73 | |         .map_err(|e| {
[INFO] [stdout] 74 | |             eprintln!("{}", e);
[INFO] [stdout] 75 | |             std::process::exit(1);
[INFO] [stdout] 76 | |         })
[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 `tuc` (bin "tuc" 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<Opt, !>
[INFO] [stdout]   --> src/bin/tuc.rs:71:20
[INFO] [stdout]    |
[INFO] [stdout] 71 |       let opt: Opt = args
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 72 | |         .try_into()
[INFO] [stdout] 73 | |         .map_err(|e| {
[INFO] [stdout] 74 | |             eprintln!("{}", e);
[INFO] [stdout] 75 | |             std::process::exit(1);
[INFO] [stdout] 76 | |         })
[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 `tuc` (bin "tuc") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "93da09aabca045e3775d7c1bed00f8fafde88b53a0be0d8e70d82cd0124f29da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93da09aabca045e3775d7c1bed00f8fafde88b53a0be0d8e70d82cd0124f29da", kill_on_drop: false }`
[INFO] [stdout] 93da09aabca045e3775d7c1bed00f8fafde88b53a0be0d8e70d82cd0124f29da
