[INFO] fetching crate test_common 1.3.0...
[INFO] testing test_common-1.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate test_common 1.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate test_common 1.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test_common 1.3.0
[INFO] finished tweaking crates.io crate test_common 1.3.0
[INFO] tweaked toml for crates.io crate test_common 1.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61fe9ca62d9de8cdec83dd4d13609acbad52b4c26aa6432133336c59ccc52bb1
[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" "61fe9ca62d9de8cdec83dd4d13609acbad52b4c26aa6432133336c59ccc52bb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61fe9ca62d9de8cdec83dd4d13609acbad52b4c26aa6432133336c59ccc52bb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61fe9ca62d9de8cdec83dd4d13609acbad52b4c26aa6432133336c59ccc52bb1", kill_on_drop: false }`
[INFO] [stdout] 61fe9ca62d9de8cdec83dd4d13609acbad52b4c26aa6432133336c59ccc52bb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 7ea3362eddd35a2b9d5bc06c2e05a5f33ed0035caa692f320e295bcf1f3856fd
[INFO] running `Command { std: "docker" "start" "-a" "7ea3362eddd35a2b9d5bc06c2e05a5f33ed0035caa692f320e295bcf1f3856fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling test_common v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.80s
[INFO] running `Command { std: "docker" "inspect" "7ea3362eddd35a2b9d5bc06c2e05a5f33ed0035caa692f320e295bcf1f3856fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea3362eddd35a2b9d5bc06c2e05a5f33ed0035caa692f320e295bcf1f3856fd", kill_on_drop: false }`
[INFO] [stdout] 7ea3362eddd35a2b9d5bc06c2e05a5f33ed0035caa692f320e295bcf1f3856fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] fecf7cd976c8c958112179ca9c883987c2e70ae62d501cca1159f91cd259a1fa
[INFO] running `Command { std: "docker" "start" "-a" "fecf7cd976c8c958112179ca9c883987c2e70ae62d501cca1159f91cd259a1fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_common v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `test_folder_path` is never read
[INFO] [stdout]   --> src/fs/tmp.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut test_folder_path = PathBuf::from("/");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "fecf7cd976c8c958112179ca9c883987c2e70ae62d501cca1159f91cd259a1fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fecf7cd976c8c958112179ca9c883987c2e70ae62d501cca1159f91cd259a1fa", kill_on_drop: false }`
[INFO] [stdout] fecf7cd976c8c958112179ca9c883987c2e70ae62d501cca1159f91cd259a1fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d494003329687c060f4b4468a28831aa29a2b5ed21911f35b139ea53719acdc
[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" "2d494003329687c060f4b4468a28831aa29a2b5ed21911f35b139ea53719acdc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: value assigned to `test_folder_path` is never read
[INFO] [stderr]   --> src/fs/tmp.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut test_folder_path = PathBuf::from("/");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_common-bba03ce99e9763e4
[INFO] [stdout] running 10 tests
[INFO] [stdout] test system::env::tests::test_not_previously_existing_environment_variable_creation ... ok
[INFO] [stdout] test fs::tmp::tests::test_create_test_environment ... ok
[INFO] [stdout] test fs::ops::tests::test_copy_files ... ok
[INFO] [stdout] test system::env::tests::test_previously_existing_environment_variable_creation ... ok
[INFO] [stderr]    Doc-tests test_common
[INFO] [stdout] test fs::ops::tests::test_delete_existing_files ... ok
[INFO] [stdout] test fs::ops::tests::test_deleting_non_existing_files ... ok
[INFO] [stdout] test system::env::tests::test_set_var ... ok
[INFO] [stdout] test random::strings::tests::test_random_string ... ok
[INFO] [stdout] test fs::ops::tests::test_delete_file ... ok
[INFO] [stdout] test fs::crypto::tests::test_hash_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/fs/tmp.rs - fs::tmp::TestEnvironment (line 13) ... ok
[INFO] [stdout] test src/system/env.rs - system::env::TemporalEnvironmentVariable (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d494003329687c060f4b4468a28831aa29a2b5ed21911f35b139ea53719acdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d494003329687c060f4b4468a28831aa29a2b5ed21911f35b139ea53719acdc", kill_on_drop: false }`
[INFO] [stdout] 2d494003329687c060f4b4468a28831aa29a2b5ed21911f35b139ea53719acdc