[INFO] cloning repository https://github.com/NieDzejkob/rustc-sat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NieDzejkob/rustc-sat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNieDzejkob%2Frustc-sat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNieDzejkob%2Frustc-sat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adbfaee38f3a1cd098399f3f6fc9bd66061257a6
[INFO] testing NieDzejkob/rustc-sat against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNieDzejkob%2Frustc-sat" "/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/NieDzejkob/rustc-sat on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NieDzejkob/rustc-sat
[INFO] finished tweaking git repo https://github.com/NieDzejkob/rustc-sat
[INFO] tweaked toml for git repo https://github.com/NieDzejkob/rustc-sat written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/NieDzejkob/rustc-sat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded quote v1.0.9
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded num-traits v0.2.14
[INFO] [stderr]   Downloaded itoa v0.4.7
[INFO] [stderr]   Downloaded thiserror-impl v1.0.26
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded flussab v0.1.0
[INFO] [stderr]   Downloaded flussab-cnf v0.2.0
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded syn v1.0.73
[INFO] [stderr]   Downloaded thiserror v1.0.26
[INFO] [stderr]   Downloaded either v1.6.1
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] afc415e8cf8183867545f9052081157a10a1e1eee7d368294076cffc1905141a
[INFO] running `Command { std: "docker" "start" "-a" "afc415e8cf8183867545f9052081157a10a1e1eee7d368294076cffc1905141a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afc415e8cf8183867545f9052081157a10a1e1eee7d368294076cffc1905141a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc415e8cf8183867545f9052081157a10a1e1eee7d368294076cffc1905141a", kill_on_drop: false }`
[INFO] [stdout] afc415e8cf8183867545f9052081157a10a1e1eee7d368294076cffc1905141a
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73d6654c672c3838f6dc7b253dc3b4373fb43bd27b5988da5286668f762a72ad
[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" "73d6654c672c3838f6dc7b253dc3b4373fb43bd27b5988da5286668f762a72ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling flussab v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling flussab-cnf v0.2.0
[INFO] [stderr]    Compiling rustc-sat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Dimacs`
[INFO] [stdout]  --> src/main.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use flussab_cnf::{cnf::Parser, Dimacs};
[INFO] [stdout]   |                                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_clause(mut clause: Vec<Literal>, num_variables: usize) {
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "73d6654c672c3838f6dc7b253dc3b4373fb43bd27b5988da5286668f762a72ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d6654c672c3838f6dc7b253dc3b4373fb43bd27b5988da5286668f762a72ad", kill_on_drop: false }`
[INFO] [stdout] 73d6654c672c3838f6dc7b253dc3b4373fb43bd27b5988da5286668f762a72ad
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] a1226b4cac943a6f311c3c50eb6054621ec37b23e58a56ae1654a8db15ef8363
[INFO] running `Command { std: "docker" "start" "-a" "a1226b4cac943a6f311c3c50eb6054621ec37b23e58a56ae1654a8db15ef8363", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-sat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Dimacs`
[INFO] [stdout]  --> src/main.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use flussab_cnf::{cnf::Parser, Dimacs};
[INFO] [stdout]   |                                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_clause(mut clause: Vec<Literal>, num_variables: usize) {
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "a1226b4cac943a6f311c3c50eb6054621ec37b23e58a56ae1654a8db15ef8363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1226b4cac943a6f311c3c50eb6054621ec37b23e58a56ae1654a8db15ef8363", kill_on_drop: false }`
[INFO] [stdout] a1226b4cac943a6f311c3c50eb6054621ec37b23e58a56ae1654a8db15ef8363
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 039b522abcd43bebdcf0569b8d8eaef62529c8e7da92e3b17af57bb6d3aa960e
[INFO] running `Command { std: "docker" "start" "-a" "039b522abcd43bebdcf0569b8d8eaef62529c8e7da92e3b17af57bb6d3aa960e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `Dimacs`
[INFO] [stderr]  --> src/main.rs:2:32
[INFO] [stderr]   |
[INFO] [stderr] 2 | use flussab_cnf::{cnf::Parser, Dimacs};
[INFO] [stderr]   |                                ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn print_clause(mut clause: Vec<Literal>, num_variables: usize) {
[INFO] [stderr]   |                 ----^^^^^^
[INFO] [stderr]   |                 |
[INFO] [stderr]   |                 help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rustc-sat` (bin "rustc-sat" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustc_sat-7c6f4548c4805135)
[INFO] running `Command { std: "docker" "inspect" "039b522abcd43bebdcf0569b8d8eaef62529c8e7da92e3b17af57bb6d3aa960e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039b522abcd43bebdcf0569b8d8eaef62529c8e7da92e3b17af57bb6d3aa960e", kill_on_drop: false }`
[INFO] [stdout] 039b522abcd43bebdcf0569b8d8eaef62529c8e7da92e3b17af57bb6d3aa960e