[INFO] updating cached repository https://github.com/botev/symbolic_polynomials
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2148f5dfd91b331d608001068fb45db316727313
[INFO] testing botev/symbolic_polynomials against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbotev%2Fsymbolic_polynomials" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/botev/symbolic_polynomials on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/botev/symbolic_polynomials already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 1a05f37f2f92a2ae7508a4e0288759ed585cab70439609403dc76250e1de3e86
[INFO] running `"docker" "start" "-a" "1a05f37f2f92a2ae7508a4e0288759ed585cab70439609403dc76250e1de3e86"`
[INFO] [stderr]    Compiling symbolic_polynomials v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "1a05f37f2f92a2ae7508a4e0288759ed585cab70439609403dc76250e1de3e86"`
[INFO] running `"docker" "rm" "-f" "1a05f37f2f92a2ae7508a4e0288759ed585cab70439609403dc76250e1de3e86"`
[INFO] [stdout] 1a05f37f2f92a2ae7508a4e0288759ed585cab70439609403dc76250e1de3e86
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3f18137e3f0d4bfd62a3b4de81a9981d05bed911b342ad9dbc303312e4a510e1
[INFO] running `"docker" "start" "-a" "3f18137e3f0d4bfd62a3b4de81a9981d05bed911b342ad9dbc303312e4a510e1"`
[INFO] [stderr]    Compiling symbolic_polynomials v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "3f18137e3f0d4bfd62a3b4de81a9981d05bed911b342ad9dbc303312e4a510e1"`
[INFO] running `"docker" "rm" "-f" "3f18137e3f0d4bfd62a3b4de81a9981d05bed911b342ad9dbc303312e4a510e1"`
[INFO] [stdout] 3f18137e3f0d4bfd62a3b4de81a9981d05bed911b342ad9dbc303312e4a510e1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] f8e747949c820fd5edf01e8157e772120e4d9c8743faa027b30b1d214d14d143
[INFO] running `"docker" "start" "-a" "f8e747949c820fd5edf01e8157e772120e4d9c8743faa027b30b1d214d14d143"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/symbolic_polynomials-b9c1e370d3e715dc
[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-56cd2cc0d9019dec
[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 835) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 475) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 853) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 918) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 434) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 904) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1084) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 548) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 867) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 661) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1098) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1022) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 688) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 516) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 1005) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymMonomial (line 406) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 94) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 729) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 943) ... ok
[INFO] [stdout] test src/lib.rs - SymPolynomial::simplify (line 255) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 125) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 83) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 147) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 135) ... ok
[INFO] [stdout] test src/lib.rs - SymPolynomial (line 323) ... ok
[INFO] [stdout] test src/lib.rs - SymMonomial (line 72) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 960) ... ok
[INFO] [stdout] test src/lib.rs - &'a SymPolynomial (line 768) ... ok
[INFO] [stdout] test src/lib.rs - SymPolynomial (line 307) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f8e747949c820fd5edf01e8157e772120e4d9c8743faa027b30b1d214d14d143"`
[INFO] running `"docker" "rm" "-f" "f8e747949c820fd5edf01e8157e772120e4d9c8743faa027b30b1d214d14d143"`
[INFO] [stdout] f8e747949c820fd5edf01e8157e772120e4d9c8743faa027b30b1d214d14d143