[INFO] cloning repository https://github.com/arturs-krapans/rx [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arturs-krapans/rx" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farturs-krapans%2Frx", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farturs-krapans%2Frx'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9ffc61075c8bb81b196d486e06434214e6f43681 [INFO] checking arturs-krapans/rx against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farturs-krapans%2Frx" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/arturs-krapans/rx 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/arturs-krapans/rx [INFO] finished tweaking git repo https://github.com/arturs-krapans/rx [INFO] tweaked toml for git repo https://github.com/arturs-krapans/rx written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/arturs-krapans/rx 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 serde v1.0.114 [INFO] [stderr] Downloaded seahash v4.0.0 [INFO] [stderr] Downloaded color_quant v1.0.1 [INFO] [stderr] Downloaded nonempty v0.1.5 [INFO] [stderr] Downloaded pico-args v0.3.1 [INFO] [stderr] Downloaded png v0.16.6 [INFO] [stderr] Downloaded cmake v0.1.46 [INFO] [stderr] Downloaded dirs-sys v0.3.4 [INFO] [stderr] Downloaded gif v0.10.3 [INFO] [stderr] Downloaded gl v0.14.0 [INFO] [stderr] Downloaded luminance-derive v0.6.3 [INFO] [stderr] Downloaded luminance-gl v0.16.1 [INFO] [stderr] Downloaded luminance v0.43.2 [INFO] [stderr] Downloaded glfw v0.41.0 [INFO] [stderr] Downloaded syn v1.0.16 [INFO] [stderr] Downloaded serde_derive v1.0.113 [INFO] [stderr] Downloaded miniz_oxide v0.3.6 [INFO] [stderr] Downloaded glfw-sys v3.3.5 [INFO] [stderr] Downloaded snap v0.2.5 [INFO] [stderr] Downloaded memoir v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c10c9ad0a365922d28922771d94d7f873164906094d385a66de781b07605a3d8 [INFO] running `Command { std: "docker" "start" "-a" "c10c9ad0a365922d28922771d94d7f873164906094d385a66de781b07605a3d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c10c9ad0a365922d28922771d94d7f873164906094d385a66de781b07605a3d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c10c9ad0a365922d28922771d94d7f873164906094d385a66de781b07605a3d8", kill_on_drop: false }` [INFO] [stdout] c10c9ad0a365922d28922771d94d7f873164906094d385a66de781b07605a3d8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b0d84c285a017eab7161eb5f7efa93c446ad4eab5aae2f0f988e9284816d9de0 [INFO] running `Command { std: "docker" "start" "-a" "b0d84c285a017eab7161eb5f7efa93c446ad4eab5aae2f0f988e9284816d9de0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling khronos_api v3.1.0 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Compiling xml-rs v0.8.4 [INFO] [stderr] Compiling cc v1.0.72 [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking cty v0.2.2 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking semver-parser v0.7.0 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking raw-window-handle v0.4.2 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Checking miniz_oxide v0.3.6 [INFO] [stderr] Checking semver v0.9.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking ppv-lite86 v0.2.15 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking snap v0.2.5 [INFO] [stderr] Checking memoir v0.2.1 [INFO] [stderr] Checking arrayvec v0.5.1 [INFO] [stderr] Checking pico-args v0.3.1 [INFO] [stderr] Checking nonempty v0.1.5 [INFO] [stderr] Compiling serde_derive v1.0.113 [INFO] [stderr] Checking seahash v4.0.0 [INFO] [stderr] Compiling cmake v0.1.46 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Compiling gl_generator v0.14.0 [INFO] [stderr] Checking png v0.16.6 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Compiling glfw-sys v3.3.5 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking raw-window-handle v0.3.4 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking directories v2.0.2 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Compiling gl v0.14.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking toml v0.5.6 [INFO] [stderr] Compiling luminance-derive v0.6.3 [INFO] [stderr] Checking glfw v0.41.0 [INFO] [stderr] Checking luminance v0.43.2 [INFO] [stderr] Checking luminance-gl v0.16.1 [INFO] [stderr] Checking rx v0.5.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: named argument `number` is not used by name [INFO] [stdout] --> src/cmd.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {}", [INFO] [stdout] | -- this formatting argument uses named argument `number` by position [INFO] [stdout] 181 | number = n, [INFO] [stdout] | ^^^^^^ this named argument is referred to by position in formatting string [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(named_arguments_used_positionally)]` on by default [INFO] [stdout] help: use the named argument by name to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 180 | "Create {number} colors gradient from {} to {}", [INFO] [stdout] | ++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: named argument `colorstart` is not used by name [INFO] [stdout] --> src/cmd.rs:182:17 [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {}", [INFO] [stdout] | -- this formatting argument uses named argument `colorstart` by position [INFO] [stdout] 181 | number = n, [INFO] [stdout] 182 | colorstart = cs, [INFO] [stdout] | ^^^^^^^^^^ this named argument is referred to by position in formatting string [INFO] [stdout] | [INFO] [stdout] help: use the named argument by name to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {colorstart} to {}", [INFO] [stdout] | ++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: named argument `colorend` is not used by name [INFO] [stdout] --> src/cmd.rs:183:17 [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {}", [INFO] [stdout] | -- this formatting argument uses named argument `colorend` by position [INFO] [stdout] ... [INFO] [stdout] 183 | colorend = ce [INFO] [stdout] | ^^^^^^^^ this named argument is referred to by position in formatting string [INFO] [stdout] | [INFO] [stdout] help: use the named argument by name to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {colorend}", [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/session.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lint `mutable_borrow_reservation_conflict` has been removed: now allowed, see issue #59159 for more information [INFO] [stdout] --> src/session.rs:2681:21 [INFO] [stdout] | [INFO] [stdout] 2681 | #[allow(mutable_borrow_reservation_conflict)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(renamed_and_removed_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/image.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/view/path.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gif` is imported redundantly [INFO] [stdout] --> src/view/resource.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | use gif::{self, SetParameter}; [INFO] [stdout] | ^^^^ the item `gif` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: named argument `number` is not used by name [INFO] [stdout] --> src/cmd.rs:181:17 [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {}", [INFO] [stdout] | -- this formatting argument uses named argument `number` by position [INFO] [stdout] 181 | number = n, [INFO] [stdout] | ^^^^^^ this named argument is referred to by position in formatting string [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(named_arguments_used_positionally)]` on by default [INFO] [stdout] help: use the named argument by name to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 180 | "Create {number} colors gradient from {} to {}", [INFO] [stdout] | ++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: named argument `colorstart` is not used by name [INFO] [stdout] --> src/cmd.rs:182:17 [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {}", [INFO] [stdout] | -- this formatting argument uses named argument `colorstart` by position [INFO] [stdout] 181 | number = n, [INFO] [stdout] 182 | colorstart = cs, [INFO] [stdout] | ^^^^^^^^^^ this named argument is referred to by position in formatting string [INFO] [stdout] | [INFO] [stdout] help: use the named argument by name to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {colorstart} to {}", [INFO] [stdout] | ++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: named argument `colorend` is not used by name [INFO] [stdout] --> src/cmd.rs:183:17 [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {}", [INFO] [stdout] | -- this formatting argument uses named argument `colorend` by position [INFO] [stdout] ... [INFO] [stdout] 183 | colorend = ce [INFO] [stdout] | ^^^^^^^^ this named argument is referred to by position in formatting string [INFO] [stdout] | [INFO] [stdout] help: use the named argument by name to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 180 | "Create {} colors gradient from {} to {colorend}", [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/session.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lint `mutable_borrow_reservation_conflict` has been removed: now allowed, see issue #59159 for more information [INFO] [stdout] --> src/session.rs:2681:21 [INFO] [stdout] | [INFO] [stdout] 2681 | #[allow(mutable_borrow_reservation_conflict)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(renamed_and_removed_lints)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/image.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/image.rs:166:9 [INFO] [stdout] | [INFO] [stdout] 166 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/view/path.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gif` is imported redundantly [INFO] [stdout] --> src/view/resource.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | use gif::{self, SetParameter}; [INFO] [stdout] | ^^^^ the item `gif` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.68s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snap v0.2.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "b0d84c285a017eab7161eb5f7efa93c446ad4eab5aae2f0f988e9284816d9de0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0d84c285a017eab7161eb5f7efa93c446ad4eab5aae2f0f988e9284816d9de0", kill_on_drop: false }` [INFO] [stdout] b0d84c285a017eab7161eb5f7efa93c446ad4eab5aae2f0f988e9284816d9de0