[INFO] fetching crate test_common 1.3.0...
[INFO] testing test_common-1.3.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate test_common 1.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate test_common 1.3.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b978b12d7d495dc1e54b062a01344c4f6bbefe77b6c9946947f8540590313478
[INFO] running `Command { std: "docker" "start" "-a" "b978b12d7d495dc1e54b062a01344c4f6bbefe77b6c9946947f8540590313478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b978b12d7d495dc1e54b062a01344c4f6bbefe77b6c9946947f8540590313478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b978b12d7d495dc1e54b062a01344c4f6bbefe77b6c9946947f8540590313478", kill_on_drop: false }`
[INFO] [stdout] b978b12d7d495dc1e54b062a01344c4f6bbefe77b6c9946947f8540590313478
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8c76744182b58f5387f17a9f4c347fd2a75382bc6e75ae37db6369ddb0955fa
[INFO] running `Command { std: "docker" "start" "-a" "b8c76744182b58f5387f17a9f4c347fd2a75382bc6e75ae37db6369ddb0955fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling test_common v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.19s
[INFO] running `Command { std: "docker" "inspect" "b8c76744182b58f5387f17a9f4c347fd2a75382bc6e75ae37db6369ddb0955fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c76744182b58f5387f17a9f4c347fd2a75382bc6e75ae37db6369ddb0955fa", kill_on_drop: false }`
[INFO] [stdout] b8c76744182b58f5387f17a9f4c347fd2a75382bc6e75ae37db6369ddb0955fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36b96a275a27e1b86291b84b2bac38d0bdaa7eda3ee4510c0b82699f8bb94a1c
[INFO] running `Command { std: "docker" "start" "-a" "36b96a275a27e1b86291b84b2bac38d0bdaa7eda3ee4510c0b82699f8bb94a1c", 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:65:17
[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 1.09s
[INFO] running `Command { std: "docker" "inspect" "36b96a275a27e1b86291b84b2bac38d0bdaa7eda3ee4510c0b82699f8bb94a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b96a275a27e1b86291b84b2bac38d0bdaa7eda3ee4510c0b82699f8bb94a1c", kill_on_drop: false }`
[INFO] [stdout] 36b96a275a27e1b86291b84b2bac38d0bdaa7eda3ee4510c0b82699f8bb94a1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c202b8dba9f7b940086adf603c8713f5410530b49e8121ff9fb64403e4114f88
[INFO] running `Command { std: "docker" "start" "-a" "c202b8dba9f7b940086adf603c8713f5410530b49e8121ff9fb64403e4114f88", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `test_folder_path` is never read
[INFO] [stderr]   --> src/fs/tmp.rs:65:17
[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: `test_common` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/test_common-76f712552f2c2e4b)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test system::env::tests::test_previously_existing_environment_variable_creation ... ok
[INFO] [stdout] test fs::crypto::tests::test_hash_file ... ok
[INFO] [stdout] test fs::ops::tests::test_delete_file ... ok
[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 fs::ops::tests::test_copy_files ... ok
[INFO] [stdout] test system::env::tests::test_not_previously_existing_environment_variable_creation ... ok
[INFO] [stdout] test random::strings::tests::test_random_string ... ok
[INFO] [stderr]    Doc-tests test_common
[INFO] [stdout] test fs::tmp::tests::test_create_test_environment ... ok
[INFO] [stdout] test system::env::tests::test_set_var ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[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; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c202b8dba9f7b940086adf603c8713f5410530b49e8121ff9fb64403e4114f88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c202b8dba9f7b940086adf603c8713f5410530b49e8121ff9fb64403e4114f88", kill_on_drop: false }`
[INFO] [stdout] c202b8dba9f7b940086adf603c8713f5410530b49e8121ff9fb64403e4114f88