[INFO] cloning repository https://github.com/botev/symbolic_polynomials
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/botev/symbolic_polynomials" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbotev%2Fsymbolic_polynomials", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbotev%2Fsymbolic_polynomials'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2148f5dfd91b331d608001068fb45db316727313
[INFO] testing botev/symbolic_polynomials against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbotev%2Fsymbolic_polynomials" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/botev/symbolic_polynomials on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/botev/symbolic_polynomials
[INFO] finished tweaking git repo https://github.com/botev/symbolic_polynomials
[INFO] tweaked toml for git repo https://github.com/botev/symbolic_polynomials written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/botev/symbolic_polynomials already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/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[INFO] the lockfile is outdated, regenerating it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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] 763c292f72dbbfa74d67ea3b3a8de14067176845f0dfc461dc4bebfdcf7c6ec6
[INFO] running `Command { std: "docker" "start" "-a" "763c292f72dbbfa74d67ea3b3a8de14067176845f0dfc461dc4bebfdcf7c6ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "763c292f72dbbfa74d67ea3b3a8de14067176845f0dfc461dc4bebfdcf7c6ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763c292f72dbbfa74d67ea3b3a8de14067176845f0dfc461dc4bebfdcf7c6ec6", kill_on_drop: false }`
[INFO] [stdout] 763c292f72dbbfa74d67ea3b3a8de14067176845f0dfc461dc4bebfdcf7c6ec6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] 948331d5a546a2d1b220ebf2755cfa62b58b5c369fa4e812b5ea28f117865607
[INFO] running `Command { std: "docker" "start" "-a" "948331d5a546a2d1b220ebf2755cfa62b58b5c369fa4e812b5ea28f117865607", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic_polynomials v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "948331d5a546a2d1b220ebf2755cfa62b58b5c369fa4e812b5ea28f117865607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948331d5a546a2d1b220ebf2755cfa62b58b5c369fa4e812b5ea28f117865607", kill_on_drop: false }`
[INFO] [stdout] 948331d5a546a2d1b220ebf2755cfa62b58b5c369fa4e812b5ea28f117865607
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94fffc0d428a16ae655452cffa6153c7f4a3063163ca21ceecb648a8cd3a262c
[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" "94fffc0d428a16ae655452cffa6153c7f4a3063163ca21ceecb648a8cd3a262c", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic_polynomials v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "94fffc0d428a16ae655452cffa6153c7f4a3063163ca21ceecb648a8cd3a262c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94fffc0d428a16ae655452cffa6153c7f4a3063163ca21ceecb648a8cd3a262c", kill_on_drop: false }`
[INFO] [stdout] 94fffc0d428a16ae655452cffa6153c7f4a3063163ca21ceecb648a8cd3a262c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d0c216907087fe3f513891b7cd5b4de2aab77d5c38275d0c5218ac245531df12
[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" "d0c216907087fe3f513891b7cd5b4de2aab77d5c38275d0c5218ac245531df12", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/symbolic_polynomials-667d59e2f9d1e70b
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/example-674daaa21acfea95
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test example_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests symbolic_polynomials
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 918) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 688) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 904) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 406) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1022) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 853) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1005) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1098) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 661) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 867) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 434) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 835) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 475) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1084) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 516) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 548) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 960) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 125) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 768) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 83) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 729) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 135) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 943) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 72) ... ok
[INFO] [stdout] test src/lib.rs - SymPolynomial (line 307) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 147) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 94) ... ok
[INFO] [stdout] test src/lib.rs - SymPolynomial (line 323) ... ok
[INFO] [stdout] test src/lib.rs - SymPolynomial::simplify (line 255) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d0c216907087fe3f513891b7cd5b4de2aab77d5c38275d0c5218ac245531df12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c216907087fe3f513891b7cd5b4de2aab77d5c38275d0c5218ac245531df12", kill_on_drop: false }`
[INFO] [stdout] d0c216907087fe3f513891b7cd5b4de2aab77d5c38275d0c5218ac245531df12