[INFO] cloning repository https://github.com/bitfield/tsr-tools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bitfield/tsr-tools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitfield%2Ftsr-tools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitfield%2Ftsr-tools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7b2492706f6db2fead48770341751314ce382d8
[INFO] checking bitfield/tsr-tools 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%2Fbitfield%2Ftsr-tools" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bitfield/tsr-tools
[INFO] finished tweaking git repo https://github.com/bitfield/tsr-tools
[INFO] tweaked toml for git repo https://github.com/bitfield/tsr-tools written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bitfield/tsr-tools 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/bitfield/tsr-tools 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] 32872a7ef6f2bff917aa288cf0c5082746445c5d4777b44de7575dbe66a84bf1
[INFO] running `Command { std: "docker" "start" "-a" "32872a7ef6f2bff917aa288cf0c5082746445c5d4777b44de7575dbe66a84bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32872a7ef6f2bff917aa288cf0c5082746445c5d4777b44de7575dbe66a84bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32872a7ef6f2bff917aa288cf0c5082746445c5d4777b44de7575dbe66a84bf1", kill_on_drop: false }`
[INFO] [stdout] 32872a7ef6f2bff917aa288cf0c5082746445c5d4777b44de7575dbe66a84bf1
[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] 405cd562ad7d72769296834c238ef510f1384540192a74b5a41ddcc7bc8c2aca
[INFO] running `Command { std: "docker" "start" "-a" "405cd562ad7d72769296834c238ef510f1384540192a74b5a41ddcc7bc8c2aca", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]    Compiling openssl-sys v0.9.107
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling openssl v0.10.72
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]     Checking clap_builder v4.5.35
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]     Checking linux-raw-sys v0.9.3
[INFO] [stderr]     Checking rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking clap v4.5.35
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking event-listener v5.4.0
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking float-cmp v0.10.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling assert_cmd v2.0.16
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking tempfile v3.19.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking bstr v1.11.3
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]     Checking async-lock v3.4.0
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Checking unicode-width v0.2.2
[INFO] [stderr]     Checking tabwriter v1.4.1
[INFO] [stderr]     Checking assert-json-diff v2.0.2
[INFO] [stderr]     Checking serde_regex v1.1.0
[INFO] [stderr]     Checking path-tree v0.8.3
[INFO] [stderr]     Checking stringmetrics v2.2.2
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking similar v2.7.0
[INFO] [stderr]     Checking async-object-pool v0.2.0
[INFO] [stderr]     Checking count_9 v0.1.0 (/opt/rustwide/workdir/count_9)
[INFO] [stderr]     Checking count_8 v0.1.0 (/opt/rustwide/workdir/count_8)
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking headers-core v0.3.0
[INFO] [stderr]     Checking memo_5 v0.1.0 (/opt/rustwide/workdir/memo_5)
[INFO] [stderr]     Checking headers v0.4.1
[INFO] [stderr]     Checking memo_4 v0.1.0 (/opt/rustwide/workdir/memo_4)
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking memo_3 v0.1.0 (/opt/rustwide/workdir/memo_3)
[INFO] [stderr]     Checking timer_2 v0.1.0 (/opt/rustwide/workdir/timer_2)
[INFO] [stderr]     Checking slim_1 v0.1.0 (/opt/rustwide/workdir/slim_1)
[INFO] [stderr]     Checking slim_2 v0.1.0 (/opt/rustwide/workdir/slim_2)
[INFO] [stderr]     Checking slim_3 v0.1.0 (/opt/rustwide/workdir/slim_3)
[INFO] [stderr]     Checking memo_1 v0.1.0 (/opt/rustwide/workdir/memo_1)
[INFO] [stderr]     Checking count_5 v0.1.0 (/opt/rustwide/workdir/count_5)
[INFO] [stderr]     Checking memo_2 v0.1.0 (/opt/rustwide/workdir/memo_2)
[INFO] [stderr]     Checking count_6 v0.1.0 (/opt/rustwide/workdir/count_6)
[INFO] [stderr]     Checking logbook_4 v0.1.0 (/opt/rustwide/workdir/logbook_4)
[INFO] [stderr]     Checking count_7 v0.1.0 (/opt/rustwide/workdir/count_7)
[INFO] [stderr]     Checking count_2 v0.1.0 (/opt/rustwide/workdir/count_2)
[INFO] [stderr]     Checking hello_2 v0.1.0 (/opt/rustwide/workdir/hello_2)
[INFO] [stderr]     Checking count_3 v0.1.0 (/opt/rustwide/workdir/count_3)
[INFO] [stderr]     Checking count_4 v0.1.0 (/opt/rustwide/workdir/count_4)
[INFO] [stderr]     Checking hello_3 v0.1.0 (/opt/rustwide/workdir/hello_3)
[INFO] [stdout] error: this type will no longer be must used: Result<File, !>
[INFO] [stdout]   --> count_4/src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |       let file = File::open(&path)
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 11 | |         .map_err(|e| {
[INFO] [stdout] 12 | |             eprintln!("{e}");
[INFO] [stdout] 13 | |             process::exit(1);
[INFO] [stdout] 14 | |         })
[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<usize, !>
[INFO] [stdout]   --> count_4/src/main.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |       let lines = count_lines(file)
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 18 | |         .map_err(|e| {
[INFO] [stdout] 19 | |             eprintln!("{e}");
[INFO] [stdout] 20 | |             process::exit(1);
[INFO] [stdout] 21 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<File, !>
[INFO] [stdout]   --> count_4/src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |       let file = File::open(&path)
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 11 | |         .map_err(|e| {
[INFO] [stdout] 12 | |             eprintln!("{e}");
[INFO] [stdout] 13 | |             process::exit(1);
[INFO] [stdout] 14 | |         })
[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 `count_4` (bin "count_4" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<usize, !>
[INFO] [stdout]   --> count_4/src/main.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |       let lines = count_lines(file)
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 18 | |         .map_err(|e| {
[INFO] [stdout] 19 | |             eprintln!("{e}");
[INFO] [stdout] 20 | |             process::exit(1);
[INFO] [stdout] 21 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `count_4` (bin "count_4") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "405cd562ad7d72769296834c238ef510f1384540192a74b5a41ddcc7bc8c2aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "405cd562ad7d72769296834c238ef510f1384540192a74b5a41ddcc7bc8c2aca", kill_on_drop: false }`
[INFO] [stdout] 405cd562ad7d72769296834c238ef510f1384540192a74b5a41ddcc7bc8c2aca