[INFO] cloning repository https://github.com/manojkumarmc/snake_and_ladder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/manojkumarmc/snake_and_ladder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanojkumarmc%2Fsnake_and_ladder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanojkumarmc%2Fsnake_and_ladder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6d3f80e727ae6de17464a8456f030991a398aa76 [INFO] testing manojkumarmc/snake_and_ladder against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanojkumarmc%2Fsnake_and_ladder" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/manojkumarmc/snake_and_ladder on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/manojkumarmc/snake_and_ladder [INFO] finished tweaking git repo https://github.com/manojkumarmc/snake_and_ladder [INFO] tweaked toml for git repo https://github.com/manojkumarmc/snake_and_ladder written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/manojkumarmc/snake_and_ladder already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded validator_derive v0.14.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 877e3015f6df968c6a1d8d733876236492a9aabd847cab8923912a98483603fb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "877e3015f6df968c6a1d8d733876236492a9aabd847cab8923912a98483603fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "877e3015f6df968c6a1d8d733876236492a9aabd847cab8923912a98483603fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "877e3015f6df968c6a1d8d733876236492a9aabd847cab8923912a98483603fb", kill_on_drop: false }` [INFO] [stdout] 877e3015f6df968c6a1d8d733876236492a9aabd847cab8923912a98483603fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 580b54ad571c4a470709713f898700c567b5bc32a8c0de74b5f9c7a1d029c6a5 [INFO] running `Command { std: "docker" "start" "-a" "580b54ad571c4a470709713f898700c567b5bc32a8c0de74b5f9c7a1d029c6a5", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling libc v0.2.107 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling unicode-bidi v0.3.7 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling if_chain v1.0.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling tinyvec v1.5.1 [INFO] [stderr] Compiling form_urlencoded v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.71 [INFO] [stderr] Compiling unicode-normalization v0.1.19 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling validator_types v0.14.0 [INFO] [stderr] Compiling url v2.2.2 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling validator_derive v0.14.0 [INFO] [stderr] Compiling validator v0.14.0 [INFO] [stderr] Compiling snake_ladder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/utils.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let mut rg: usize = rand::thread_rng().gen_range(l_limit..=u_limit); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_col_data` [INFO] [stdout] --> src/model.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 40 | pub fn get_col_data(&self, col_id: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `id` [INFO] [stdout] --> src/model.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | id: usize, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/model.rs:83:5 [INFO] [stdout] | [INFO] [stdout] 83 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_name` [INFO] [stdout] --> src/model.rs:91:12 [INFO] [stdout] | [INFO] [stdout] 91 | pub fn set_name(&mut self, n: &'static str) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 06s [INFO] running `Command { std: "docker" "inspect" "580b54ad571c4a470709713f898700c567b5bc32a8c0de74b5f9c7a1d029c6a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "580b54ad571c4a470709713f898700c567b5bc32a8c0de74b5f9c7a1d029c6a5", kill_on_drop: false }` [INFO] [stdout] 580b54ad571c4a470709713f898700c567b5bc32a8c0de74b5f9c7a1d029c6a5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 570f1350135927e8113d59d243cc0bfd9828aa13569eb2732e72e2baa2288997 [INFO] running `Command { std: "docker" "start" "-a" "570f1350135927e8113d59d243cc0bfd9828aa13569eb2732e72e2baa2288997", kill_on_drop: false }` [INFO] [stderr] Compiling snake_ladder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/utils.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let mut rg: usize = rand::thread_rng().gen_range(l_limit..=u_limit); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_col_data` [INFO] [stdout] --> src/model.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 40 | pub fn get_col_data(&self, col_id: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `id` [INFO] [stdout] --> src/model.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | id: usize, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/model.rs:83:5 [INFO] [stdout] | [INFO] [stdout] 83 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_name` [INFO] [stdout] --> src/model.rs:91:12 [INFO] [stdout] | [INFO] [stdout] 91 | pub fn set_name(&mut self, n: &'static str) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.08s [INFO] running `Command { std: "docker" "inspect" "570f1350135927e8113d59d243cc0bfd9828aa13569eb2732e72e2baa2288997", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "570f1350135927e8113d59d243cc0bfd9828aa13569eb2732e72e2baa2288997", kill_on_drop: false }` [INFO] [stdout] 570f1350135927e8113d59d243cc0bfd9828aa13569eb2732e72e2baa2288997 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7ad99dc225040d3cc18b614f543269845874122078225389b4dab5dd302ae678 [INFO] running `Command { std: "docker" "start" "-a" "7ad99dc225040d3cc18b614f543269845874122078225389b4dab5dd302ae678", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/utils.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let mut rg: usize = rand::thread_rng().gen_range(l_limit..=u_limit); [INFO] [stderr] | ----^^ [INFO] [stdout] [INFO] [stderr] | | [INFO] [stdout] running 0 tests [INFO] [stderr] | help: remove this `mut` [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_col_data` [INFO] [stderr] --> src/model.rs:40:12 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn get_col_data(&self, col_id: usize) { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `id` [INFO] [stderr] --> src/model.rs:82:5 [INFO] [stderr] | [INFO] [stderr] 82 | id: usize, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> src/model.rs:83:5 [INFO] [stderr] | [INFO] [stderr] 83 | name: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `set_name` [INFO] [stderr] --> src/model.rs:91:12 [INFO] [stderr] | [INFO] [stderr] 91 | pub fn set_name(&mut self, n: &'static str) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `snake_ladder` (bin "snake_ladder" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/snake_ladder-83d2ee7d287be11d) [INFO] running `Command { std: "docker" "inspect" "7ad99dc225040d3cc18b614f543269845874122078225389b4dab5dd302ae678", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ad99dc225040d3cc18b614f543269845874122078225389b4dab5dd302ae678", kill_on_drop: false }` [INFO] [stdout] 7ad99dc225040d3cc18b614f543269845874122078225389b4dab5dd302ae678