[INFO] cloning repository https://github.com/vaknin/Tasks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vaknin/Tasks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaknin%2FTasks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaknin%2FTasks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3cb365dc2b06e1a3b514c802999c79472873c6f
[INFO] checking vaknin/Tasks against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaknin%2FTasks" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vaknin/Tasks on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vaknin/Tasks
[INFO] finished tweaking git repo https://github.com/vaknin/Tasks
[INFO] tweaked toml for git repo https://github.com/vaknin/Tasks written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vaknin/Tasks 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-types v0.12.3
[INFO] [stderr]   Downloaded tonic-build v0.10.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.71
[INFO] [stderr]   Downloaded thiserror-impl v1.0.51
[INFO] [stderr]   Downloaded thiserror v1.0.51
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.2
[INFO] [stderr]   Downloaded anstyle-parse v0.2.3
[INFO] [stderr]   Downloaded unicode-bidi v0.3.14
[INFO] [stderr]   Downloaded anstyle-query v1.0.2
[INFO] [stderr]   Downloaded anstream v0.6.5
[INFO] [stderr]   Downloaded clap_builder v4.4.11
[INFO] [stderr]   Downloaded rustix v0.38.28
[INFO] [stderr]   Downloaded redis v0.24.0
[INFO] [stderr]   Downloaded h2 v0.3.22
[INFO] [stderr]   Downloaded tokio v1.35.1
[INFO] [stderr]   Downloaded libc v0.2.151
[INFO] [stderr]   Downloaded syn v2.0.42
[INFO] [stderr]   Downloaded clap_lex v0.6.0
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.12
[INFO] [stderr]   Downloaded clap v4.4.11
[INFO] [stderr]   Downloaded anyhow v1.0.76
[INFO] [stderr]   Downloaded prost-build v0.12.3
[INFO] [stderr]   Downloaded sha1_smol v1.0.0
[INFO] [stderr]   Downloaded async-trait v0.1.75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2940ba85702fed3d31a7c62fc9bc47c9b3387ca3e18066c59d95e67d38c0180f
[INFO] running `Command { std: "docker" "start" "-a" "2940ba85702fed3d31a7c62fc9bc47c9b3387ca3e18066c59d95e67d38c0180f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2940ba85702fed3d31a7c62fc9bc47c9b3387ca3e18066c59d95e67d38c0180f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2940ba85702fed3d31a7c62fc9bc47c9b3387ca3e18066c59d95e67d38c0180f", kill_on_drop: false }`
[INFO] [stdout] 2940ba85702fed3d31a7c62fc9bc47c9b3387ca3e18066c59d95e67d38c0180f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85f626484e2df6956a2b4f57a23ee96eedbcea52f9ee1a781e81e4587d21d8ae
[INFO] running `Command { std: "docker" "start" "-a" "85f626484e2df6956a2b4f57a23ee96eedbcea52f9ee1a781e81e4587d21d8ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling anyhow v1.0.76
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling prettyplease v0.2.15
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling async-trait v0.1.75
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling petgraph v0.6.4
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking anstream v0.6.5
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking clap_builder v4.4.11
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling tempfile v3.8.1
[INFO] [stderr]     Checking clap v4.4.11
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling prost-derive v0.12.3
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling prost v0.12.3
[INFO] [stderr]    Compiling prost-types v0.12.3
[INFO] [stderr]    Compiling prost-build v0.12.3
[INFO] [stderr]    Compiling tonic-build v0.10.2
[INFO] [stderr]    Compiling todo-grpc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking redis v0.24.0
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking tonic v0.10.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.72s
[INFO] running `Command { std: "docker" "inspect" "85f626484e2df6956a2b4f57a23ee96eedbcea52f9ee1a781e81e4587d21d8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85f626484e2df6956a2b4f57a23ee96eedbcea52f9ee1a781e81e4587d21d8ae", kill_on_drop: false }`
[INFO] [stdout] 85f626484e2df6956a2b4f57a23ee96eedbcea52f9ee1a781e81e4587d21d8ae