[INFO] cloning repository https://github.com/TWal/fstar-lsp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TWal/fstar-lsp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTWal%2Ffstar-lsp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTWal%2Ffstar-lsp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd79d2e6fa663b9d9ebf106293d1d1d5e41f12f2
[INFO] checking TWal/fstar-lsp against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTWal%2Ffstar-lsp" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TWal/fstar-lsp on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TWal/fstar-lsp
[INFO] finished tweaking git repo https://github.com/TWal/fstar-lsp
[INFO] tweaked toml for git repo https://github.com/TWal/fstar-lsp written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/TWal/fstar-lsp 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-lsp v0.19.0
[INFO] [stderr]   Downloaded tower-lsp-macros v0.8.0
[INFO] [stderr]   Downloaded syn v2.0.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb54cbcac789f32f089ea6c9a5dc5a680b226f3417b76c734977f6a4df9e9edf
[INFO] running `Command { std: "docker" "start" "-a" "eb54cbcac789f32f089ea6c9a5dc5a680b226f3417b76c734977f6a4df9e9edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb54cbcac789f32f089ea6c9a5dc5a680b226f3417b76c734977f6a4df9e9edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb54cbcac789f32f089ea6c9a5dc5a680b226f3417b76c734977f6a4df9e9edf", kill_on_drop: false }`
[INFO] [stdout] eb54cbcac789f32f089ea6c9a5dc5a680b226f3417b76c734977f6a4df9e9edf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e874a043c94f3d3dcee2ca1975a922880d2b8d56e9d926e704d83f320781b2e
[INFO] running `Command { std: "docker" "start" "-a" "1e874a043c94f3d3dcee2ca1975a922880d2b8d56e9d926e704d83f320781b2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.34
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling serde_repr v0.1.16
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]    Compiling auto_impl v1.1.0
[INFO] [stderr]    Compiling tower-lsp-macros v0.8.0
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking serde v1.0.188
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]     Checking lsp-types v0.94.1
[INFO] [stderr]     Checking tower-lsp v0.19.0
[INFO] [stderr]     Checking fstar-lsp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `match_length` is never read
[INFO] [stdout]    --> src/lsp/file_backend.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub struct CompleteResultItem {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] 194 |     pub match_length: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CompleteResultItem` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `match_length` is never read
[INFO] [stdout]    --> src/lsp/file_backend.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub struct CompleteResultItem {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] 194 |     pub match_length: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CompleteResultItem` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.79s
[INFO] running `Command { std: "docker" "inspect" "1e874a043c94f3d3dcee2ca1975a922880d2b8d56e9d926e704d83f320781b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e874a043c94f3d3dcee2ca1975a922880d2b8d56e9d926e704d83f320781b2e", kill_on_drop: false }`
[INFO] [stdout] 1e874a043c94f3d3dcee2ca1975a922880d2b8d56e9d926e704d83f320781b2e
[INFO] checking TWal/fstar-lsp against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTWal%2Ffstar-lsp" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TWal/fstar-lsp on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TWal/fstar-lsp
[INFO] finished tweaking git repo https://github.com/TWal/fstar-lsp
[INFO] tweaked toml for git repo https://github.com/TWal/fstar-lsp written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/TWal/fstar-lsp 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 364f2f6caa7cfeda52a3a3b0e0d72f95e5959d482c06ccaa4048152a0d24b179
[INFO] running `Command { std: "docker" "start" "-a" "364f2f6caa7cfeda52a3a3b0e0d72f95e5959d482c06ccaa4048152a0d24b179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "364f2f6caa7cfeda52a3a3b0e0d72f95e5959d482c06ccaa4048152a0d24b179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "364f2f6caa7cfeda52a3a3b0e0d72f95e5959d482c06ccaa4048152a0d24b179", kill_on_drop: false }`
[INFO] [stdout] 364f2f6caa7cfeda52a3a3b0e0d72f95e5959d482c06ccaa4048152a0d24b179
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf5f056624ad00e774ae939a7402ab8d1f28b0984632ddc0dc05aa39e9127228
[INFO] running `Command { std: "docker" "start" "-a" "cf5f056624ad00e774ae939a7402ab8d1f28b0984632ddc0dc05aa39e9127228", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling syn v2.0.34
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling auto_impl v1.1.0
[INFO] [stderr]    Compiling tower-lsp-macros v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling serde_repr v0.1.16
[INFO] [stderr]    Compiling async-trait v0.1.73
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking serde v1.0.188
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]     Checking lsp-types v0.94.1
[INFO] [stderr]     Checking tower-lsp v0.19.0
[INFO] [stderr]     Checking fstar-lsp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `match_length` is never read
[INFO] [stdout]    --> src/lsp/file_backend.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub struct CompleteResultItem {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] 194 |     pub match_length: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CompleteResultItem` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `match_length` is never read
[INFO] [stdout]    --> src/lsp/file_backend.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub struct CompleteResultItem {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] 194 |     pub match_length: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CompleteResultItem` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 58.73s
[INFO] running `Command { std: "docker" "inspect" "cf5f056624ad00e774ae939a7402ab8d1f28b0984632ddc0dc05aa39e9127228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5f056624ad00e774ae939a7402ab8d1f28b0984632ddc0dc05aa39e9127228", kill_on_drop: false }`
[INFO] [stdout] cf5f056624ad00e774ae939a7402ab8d1f28b0984632ddc0dc05aa39e9127228