[INFO] updating cached repository https://github.com/optozorax/fopply
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] fc7bca43780131c3423d3b37380d48c9ff872acc
[INFO] testing optozorax/fopply against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foptozorax%2Ffopply" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/optozorax/fopply on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/optozorax/fopply
[INFO] finished tweaking git repo https://github.com/optozorax/fopply
[INFO] tweaked toml for git repo https://github.com/optozorax/fopply written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/optozorax/fopply already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9e63b89de5b509336d26446289ff2e572674e5d69858a86d49c2364711782cbc
[INFO] running `"docker" "start" "-a" "9e63b89de5b509336d26446289ff2e572674e5d69858a86d49c2364711782cbc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling peg-runtime v0.6.2
[INFO] [stderr]    Compiling peg-macros v0.6.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling peg v0.6.2
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:579:5
[INFO] [stderr]     |
[INFO] [stderr] 576 |     return;
[INFO] [stderr]     |     ------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 579 |     let formula = transformation("a+b <-> b+a").expect("wrong transformation");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:352:13
[INFO] [stderr]     |
[INFO] [stderr] 352 |             _ => Err(fmt::Error)
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TreeIteratorState`
[INFO] [stderr]    --> src/main.rs:156:6
[INFO] [stderr]     |
[INFO] [stderr] 156 | enum TreeIteratorState {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_leaf`
[INFO] [stderr]    --> src/main.rs:166:8
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn is_leaf(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval`
[INFO] [stderr]    --> src/main.rs:386:4
[INFO] [stderr]     |
[INFO] [stderr] 386 | fn eval(expr: &Tree) -> Option<f64> {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.11s
[INFO] running `"docker" "inspect" "9e63b89de5b509336d26446289ff2e572674e5d69858a86d49c2364711782cbc"`
[INFO] running `"docker" "rm" "-f" "9e63b89de5b509336d26446289ff2e572674e5d69858a86d49c2364711782cbc"`
[INFO] [stdout] 9e63b89de5b509336d26446289ff2e572674e5d69858a86d49c2364711782cbc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a00624633aef1b1a58bc730c24b4173f6db5e43ddabb138a6844a35676be327b
[INFO] running `"docker" "start" "-a" "a00624633aef1b1a58bc730c24b4173f6db5e43ddabb138a6844a35676be327b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:579:5
[INFO] [stderr]     |
[INFO] [stderr] 576 |     return;
[INFO] [stderr]     |     ------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 579 |     let formula = transformation("a+b <-> b+a").expect("wrong transformation");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:352:13
[INFO] [stderr]     |
[INFO] [stderr] 352 |             _ => Err(fmt::Error)
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TreeIteratorState`
[INFO] [stderr]    --> src/main.rs:156:6
[INFO] [stderr]     |
[INFO] [stderr] 156 | enum TreeIteratorState {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_leaf`
[INFO] [stderr]    --> src/main.rs:166:8
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn is_leaf(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "a00624633aef1b1a58bc730c24b4173f6db5e43ddabb138a6844a35676be327b"`
[INFO] running `"docker" "rm" "-f" "a00624633aef1b1a58bc730c24b4173f6db5e43ddabb138a6844a35676be327b"`
[INFO] [stdout] a00624633aef1b1a58bc730c24b4173f6db5e43ddabb138a6844a35676be327b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 22ba197a3d054b22b306f9e01a411687eceb616ea31811fbacfd4d0ae2a26f35
[INFO] running `"docker" "start" "-a" "22ba197a3d054b22b306f9e01a411687eceb616ea31811fbacfd4d0ae2a26f35"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:579:5
[INFO] [stderr]     |
[INFO] [stderr] 576 |     return;
[INFO] [stderr]     |     ------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 579 |     let formula = transformation("a+b <-> b+a").expect("wrong transformation");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:352:13
[INFO] [stderr]     |
[INFO] [stderr] 352 |             _ => Err(fmt::Error)
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TreeIteratorState`
[INFO] [stderr]    --> src/main.rs:156:6
[INFO] [stderr]     |
[INFO] [stderr] 156 | enum TreeIteratorState {
[INFO] [stderr]     |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_leaf`
[INFO] [stderr]    --> src/main.rs:166:8
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn is_leaf(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust-3f3ba3ad234497e8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::parser ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "22ba197a3d054b22b306f9e01a411687eceb616ea31811fbacfd4d0ae2a26f35"`
[INFO] running `"docker" "rm" "-f" "22ba197a3d054b22b306f9e01a411687eceb616ea31811fbacfd4d0ae2a26f35"`
[INFO] [stdout] 22ba197a3d054b22b306f9e01a411687eceb616ea31811fbacfd4d0ae2a26f35