[INFO] cloning repository https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokiVKlokeNaAndoke%2Flinear_equation_system_solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokiVKlokeNaAndoke%2Flinear_equation_system_solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9d5827a7cfa30603991f330ffdc8a5774e96aa0 [INFO] checking LokiVKlokeNaAndoke/linear_equation_system_solver against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokiVKlokeNaAndoke%2Flinear_equation_system_solver" "/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/LokiVKlokeNaAndoke/linear_equation_system_solver 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/LokiVKlokeNaAndoke/linear_equation_system_solver [INFO] finished tweaking git repo https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver [INFO] tweaked toml for git repo https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver 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] Downloading crates ... [INFO] [stderr] Downloaded rand_jitter v0.1.3 [INFO] [stderr] Downloaded rand_core v0.4.0 [INFO] [stderr] Downloaded bigdecimal v0.0.15 [INFO] [stderr] Downloaded num-bigint v0.2.2 [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] 9db86933819f2b11a6fa1f7791856a0c1d19fe9d994aab8e4ee857d2e35d3cab [INFO] running `Command { std: "docker" "start" "-a" "9db86933819f2b11a6fa1f7791856a0c1d19fe9d994aab8e4ee857d2e35d3cab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9db86933819f2b11a6fa1f7791856a0c1d19fe9d994aab8e4ee857d2e35d3cab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9db86933819f2b11a6fa1f7791856a0c1d19fe9d994aab8e4ee857d2e35d3cab", kill_on_drop: false }` [INFO] [stdout] 9db86933819f2b11a6fa1f7791856a0c1d19fe9d994aab8e4ee857d2e35d3cab [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] 05f4cddd6bb02b817ece590281ed74b1bad48d6cf989090e9c6c6f626178e89c [INFO] running `Command { std: "docker" "start" "-a" "05f4cddd6bb02b817ece590281ed74b1bad48d6cf989090e9c6c6f626178e89c", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking bigdecimal v0.0.15 [INFO] [stderr] Checking linear_equation_system_solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Num` is imported redundantly [INFO] [stdout] --> src/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bigdecimal::Num; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 2 | use bigdecimal::*; [INFO] [stdout] | ------------- the item `Num` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Clone` is imported redundantly [INFO] [stdout] --> src/matrix.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::clone::Clone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Clone` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Num` is imported redundantly [INFO] [stdout] --> src/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bigdecimal::Num; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 2 | use bigdecimal::*; [INFO] [stdout] | ------------- the item `Num` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Clone` is imported redundantly [INFO] [stdout] --> src/matrix.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::clone::Clone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Clone` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.39s [INFO] running `Command { std: "docker" "inspect" "05f4cddd6bb02b817ece590281ed74b1bad48d6cf989090e9c6c6f626178e89c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "05f4cddd6bb02b817ece590281ed74b1bad48d6cf989090e9c6c6f626178e89c", kill_on_drop: false }` [INFO] [stdout] 05f4cddd6bb02b817ece590281ed74b1bad48d6cf989090e9c6c6f626178e89c [INFO] checking LokiVKlokeNaAndoke/linear_equation_system_solver against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLokiVKlokeNaAndoke%2Flinear_equation_system_solver" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver 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/LokiVKlokeNaAndoke/linear_equation_system_solver [INFO] finished tweaking git repo https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver [INFO] tweaked toml for git repo https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LokiVKlokeNaAndoke/linear_equation_system_solver 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e762dca6dbd0474d4b6e3105f8c3fa7f6774de2ee0baebcd7fac937de6e291d2 [INFO] running `Command { std: "docker" "start" "-a" "e762dca6dbd0474d4b6e3105f8c3fa7f6774de2ee0baebcd7fac937de6e291d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e762dca6dbd0474d4b6e3105f8c3fa7f6774de2ee0baebcd7fac937de6e291d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e762dca6dbd0474d4b6e3105f8c3fa7f6774de2ee0baebcd7fac937de6e291d2", kill_on_drop: false }` [INFO] [stdout] e762dca6dbd0474d4b6e3105f8c3fa7f6774de2ee0baebcd7fac937de6e291d2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d34006189b44471f79c0abf5a6cfc04ed7a7d4f7cb4762e27b5c34d52297c2ae [INFO] running `Command { std: "docker" "start" "-a" "d34006189b44471f79c0abf5a6cfc04ed7a7d4f7cb4762e27b5c34d52297c2ae", kill_on_drop: false }` [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking bigdecimal v0.0.15 [INFO] [stderr] Checking linear_equation_system_solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Num` is imported redundantly [INFO] [stdout] --> src/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bigdecimal::Num; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 2 | use bigdecimal::*; [INFO] [stdout] | ------------- the item `Num` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Clone` is imported redundantly [INFO] [stdout] --> src/matrix.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::clone::Clone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Clone` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Num` is imported redundantly [INFO] [stdout] --> src/matrix.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bigdecimal::Num; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 2 | use bigdecimal::*; [INFO] [stdout] | ------------- the item `Num` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Clone` is imported redundantly [INFO] [stdout] --> src/matrix.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::clone::Clone; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Clone` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/matrix.rs:196:13 [INFO] [stdout] | [INFO] [stdout] 196 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/matrix.rs:196:13 [INFO] [stdout] | [INFO] [stdout] 196 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `linear_equation_system_solver` (bin "linear_equation_system_solver") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `linear_equation_system_solver` (bin "linear_equation_system_solver" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d34006189b44471f79c0abf5a6cfc04ed7a7d4f7cb4762e27b5c34d52297c2ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d34006189b44471f79c0abf5a6cfc04ed7a7d4f7cb4762e27b5c34d52297c2ae", kill_on_drop: false }` [INFO] [stdout] d34006189b44471f79c0abf5a6cfc04ed7a7d4f7cb4762e27b5c34d52297c2ae