[INFO] cloning repository https://github.com/grahame/dividebatur2 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grahame/dividebatur2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahame%2Fdividebatur2", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahame%2Fdividebatur2'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cfb61a616ded333aa58a76f974e14e58b4d4bc99 [INFO] checking grahame/dividebatur2 against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrahame%2Fdividebatur2" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/grahame/dividebatur2 on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/grahame/dividebatur2 [INFO] finished tweaking git repo https://github.com/grahame/dividebatur2 [INFO] tweaked toml for git repo https://github.com/grahame/dividebatur2 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/grahame/dividebatur2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ba5e401308c90ea134aa906df9aca527d5aea0abfcb930814e8b587e36c56a90 [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" "ba5e401308c90ea134aa906df9aca527d5aea0abfcb930814e8b587e36c56a90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ba5e401308c90ea134aa906df9aca527d5aea0abfcb930814e8b587e36c56a90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba5e401308c90ea134aa906df9aca527d5aea0abfcb930814e8b587e36c56a90", kill_on_drop: false }` [INFO] [stdout] ba5e401308c90ea134aa906df9aca527d5aea0abfcb930814e8b587e36c56a90 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 055a5b49d1a380aa75eefca6402089e0272f1f583e1f17b4ceec459d3283a3db [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" "055a5b49d1a380aa75eefca6402089e0272f1f583e1f17b4ceec459d3283a3db", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking bstr v0.2.14 [INFO] [stderr] Checking flate2 v1.0.19 [INFO] [stderr] Checking serde_json v1.0.59 [INFO] [stderr] Checking tempfile v2.2.0 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking csv v1.1.4 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Checking dividebatur v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/candidates.rs:42:81 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/formalpreferences.rs:108:89 [INFO] [stdout] | [INFO] [stdout] 108 | pub fn load(filename: &str, candidates: &CandidateData) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/engine.rs:304:80 [INFO] [stdout] | [INFO] [stdout] 304 | fn find_tie_breaker(&self, candidates: &Vec) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/candidates.rs:42:81 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/formalpreferences.rs:108:89 [INFO] [stdout] | [INFO] [stdout] 108 | pub fn load(filename: &str, candidates: &CandidateData) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/engine.rs:304:80 [INFO] [stdout] | [INFO] [stdout] 304 | fn find_tie_breaker(&self, candidates: &Vec) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` 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] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/candidates.rs:42:81 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/formalpreferences.rs:108:89 [INFO] [stdout] | [INFO] [stdout] 108 | pub fn load(filename: &str, candidates: &CandidateData) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/engine.rs:304:80 [INFO] [stdout] | [INFO] [stdout] 304 | fn find_tie_breaker(&self, candidates: &Vec) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/candidates.rs:42:81 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/aec/data/formalpreferences.rs:108:89 [INFO] [stdout] | [INFO] [stdout] 108 | pub fn load(filename: &str, candidates: &CandidateData) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/engine.rs:304:80 [INFO] [stdout] | [INFO] [stdout] 304 | fn find_tie_breaker(&self, candidates: &Vec) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` 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 [unoptimized + debuginfo] target(s) in 29.84s [INFO] running `Command { std: "docker" "inspect" "055a5b49d1a380aa75eefca6402089e0272f1f583e1f17b4ceec459d3283a3db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "055a5b49d1a380aa75eefca6402089e0272f1f583e1f17b4ceec459d3283a3db", kill_on_drop: false }` [INFO] [stdout] 055a5b49d1a380aa75eefca6402089e0272f1f583e1f17b4ceec459d3283a3db