[INFO] cloning repository https://github.com/minikiller/study-project [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/minikiller/study-project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminikiller%2Fstudy-project", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminikiller%2Fstudy-project'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6dfcf2137f0dc8c7c2cd553f8253dfb30a6567a1 [INFO] checking minikiller/study-project against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminikiller%2Fstudy-project" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/minikiller/study-project 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/minikiller/study-project [INFO] finished tweaking git repo https://github.com/minikiller/study-project [INFO] tweaked toml for git repo https://github.com/minikiller/study-project written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/minikiller/study-project 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 33ac580e767367ee9514b2f45cb5fdc7eeaeec38c811b6799b39f3cfb58bda01 [INFO] running `Command { std: "docker" "start" "-a" "33ac580e767367ee9514b2f45cb5fdc7eeaeec38c811b6799b39f3cfb58bda01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "33ac580e767367ee9514b2f45cb5fdc7eeaeec38c811b6799b39f3cfb58bda01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33ac580e767367ee9514b2f45cb5fdc7eeaeec38c811b6799b39f3cfb58bda01", kill_on_drop: false }` [INFO] [stdout] 33ac580e767367ee9514b2f45cb5fdc7eeaeec38c811b6799b39f3cfb58bda01 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c648ca8e7c0a8053b614c144f00d1f9b219593f71d09b12b2ebc93bf5ecd9db7 [INFO] running `Command { std: "docker" "start" "-a" "c648ca8e7c0a8053b614c144f00d1f9b219593f71d09b12b2ebc93bf5ecd9db7", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Checking hello v0.1.0 (/opt/rustwide/workdir/hello) [INFO] [stderr] Checking structer v0.1.0 (/opt/rustwide/workdir/structer) [INFO] [stderr] Checking iter v0.1.0 (/opt/rustwide/workdir/iter) [INFO] [stderr] Checking owner v0.1.0 (/opt/rustwide/workdir/owner) [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stdout] warning: function `get_it` is never used [INFO] [stdout] --> owner/src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn get_it<'a>() -> &'a str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_it` is never used [INFO] [stdout] --> owner/src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn get_it<'a>() -> &'a str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking guess v0.1.0 (/opt/rustwide/workdir/guess) [INFO] [stderr] Checking variant v0.1.0 (/opt/rustwide/workdir/variant) [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> variant/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let name: (String, u32, Vec<&str>); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> variant/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let name: (String, u32, Vec<&str>); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vd` [INFO] [stdout] --> variant/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let vd= add_it(18); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_vd` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vd` [INFO] [stdout] --> variant/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let vd= add_it(18); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_vd` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Hello` is never constructed [INFO] [stdout] --> variant/src/main.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct Hello<'a> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Hello` is never constructed [INFO] [stdout] --> variant/src/main.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct Hello<'a> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.47s [INFO] running `Command { std: "docker" "inspect" "c648ca8e7c0a8053b614c144f00d1f9b219593f71d09b12b2ebc93bf5ecd9db7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c648ca8e7c0a8053b614c144f00d1f9b219593f71d09b12b2ebc93bf5ecd9db7", kill_on_drop: false }` [INFO] [stdout] c648ca8e7c0a8053b614c144f00d1f9b219593f71d09b12b2ebc93bf5ecd9db7 [INFO] checking minikiller/study-project against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminikiller%2Fstudy-project" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/minikiller/study-project on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/minikiller/study-project [INFO] finished tweaking git repo https://github.com/minikiller/study-project [INFO] tweaked toml for git repo https://github.com/minikiller/study-project written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/minikiller/study-project 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 34ce14a92fcc4c641a0ff7b1ef9094eeedee7afcbb42fa4cb2e10dc8a47ae365 [INFO] running `Command { std: "docker" "start" "-a" "34ce14a92fcc4c641a0ff7b1ef9094eeedee7afcbb42fa4cb2e10dc8a47ae365", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "34ce14a92fcc4c641a0ff7b1ef9094eeedee7afcbb42fa4cb2e10dc8a47ae365", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34ce14a92fcc4c641a0ff7b1ef9094eeedee7afcbb42fa4cb2e10dc8a47ae365", kill_on_drop: false }` [INFO] [stdout] 34ce14a92fcc4c641a0ff7b1ef9094eeedee7afcbb42fa4cb2e10dc8a47ae365 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 11c5b4af15d715caab7e59c811b2e08829cb316429bc2987a7e05999dadba55d [INFO] running `Command { std: "docker" "start" "-a" "11c5b4af15d715caab7e59c811b2e08829cb316429bc2987a7e05999dadba55d", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Checking hello v0.1.0 (/opt/rustwide/workdir/hello) [INFO] [stderr] Checking owner v0.1.0 (/opt/rustwide/workdir/owner) [INFO] [stderr] Checking structer v0.1.0 (/opt/rustwide/workdir/structer) [INFO] [stderr] Checking iter v0.1.0 (/opt/rustwide/workdir/iter) [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stdout] warning: function `get_it` is never used [INFO] [stdout] --> owner/src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn get_it<'a>() -> &'a str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_it` is never used [INFO] [stdout] --> owner/src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn get_it<'a>() -> &'a str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.19/src/format/parse.rs:491:21 [INFO] [stdout] | [INFO] [stdout] 491 | Err(INVALID)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 491 | Err::(INVALID)?; [INFO] [stdout] | +++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `chrono` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "11c5b4af15d715caab7e59c811b2e08829cb316429bc2987a7e05999dadba55d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11c5b4af15d715caab7e59c811b2e08829cb316429bc2987a7e05999dadba55d", kill_on_drop: false }` [INFO] [stdout] 11c5b4af15d715caab7e59c811b2e08829cb316429bc2987a7e05999dadba55d