[INFO] cloning repository https://github.com/samuwen/re_flog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samuwen/re_flog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuwen%2Fre_flog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuwen%2Fre_flog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6698709239e7d2607609f7087697a3c837d73d7
[INFO] testing samuwen/re_flog against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuwen%2Fre_flog" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samuwen/re_flog
[INFO] finished tweaking git repo https://github.com/samuwen/re_flog
[INFO] tweaked toml for git repo https://github.com/samuwen/re_flog written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samuwen/re_flog on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samuwen/re_flog already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 879461f6397b09347a88658386a6cd08fde9861d67030ece93556533256015d5
[INFO] running `Command { std: "docker" "start" "-a" "879461f6397b09347a88658386a6cd08fde9861d67030ece93556533256015d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "879461f6397b09347a88658386a6cd08fde9861d67030ece93556533256015d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879461f6397b09347a88658386a6cd08fde9861d67030ece93556533256015d5", kill_on_drop: false }`
[INFO] [stdout] 879461f6397b09347a88658386a6cd08fde9861d67030ece93556533256015d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65c127d4315b85686071e80d099b4cab4cbd8336e0f0d59a3b1389f2be4bed96
[INFO] running `Command { std: "docker" "start" "-a" "65c127d4315b85686071e80d099b4cab4cbd8336e0f0d59a3b1389f2be4bed96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num_threads v0.1.3
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.1.0
[INFO] [stderr]    Compiling derive-getters v0.2.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling flexi_logger v0.22.3
[INFO] [stderr]    Compiling clap v3.1.0
[INFO] [stderr]    Compiling re_flog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/structures/sha.rs:100:34
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 for dir_entry in read_dir(path) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stdout] 100 +                 while let Ok(dir_entry) = read_dir(path) {
[INFO] [stdout]     |
[INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 for dir_entry in read_dir(path)? {
[INFO] [stdout]     |                                                +
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stdout] 100 +                 if let Ok(dir_entry) = read_dir(path) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "65c127d4315b85686071e80d099b4cab4cbd8336e0f0d59a3b1389f2be4bed96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65c127d4315b85686071e80d099b4cab4cbd8336e0f0d59a3b1389f2be4bed96", kill_on_drop: false }`
[INFO] [stdout] 65c127d4315b85686071e80d099b4cab4cbd8336e0f0d59a3b1389f2be4bed96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b182326f08a86f2ff0ce035f306dfea3d7ce3be0734eb7bb54d9a7d8ee89f2a3
[INFO] running `Command { std: "docker" "start" "-a" "b182326f08a86f2ff0ce035f306dfea3d7ce3be0734eb7bb54d9a7d8ee89f2a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling re_flog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/structures/sha.rs:100:34
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 for dir_entry in read_dir(path) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stdout] 100 +                 while let Ok(dir_entry) = read_dir(path) {
[INFO] [stdout]     |
[INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 for dir_entry in read_dir(path)? {
[INFO] [stdout]     |                                                +
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stdout] 100 +                 if let Ok(dir_entry) = read_dir(path) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/structures/index.rs:532:13
[INFO] [stdout]     |
[INFO] [stdout] 532 |         let f = IndexFile::from_disk().unwrap();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/commands/write_tree.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         write_tree(false);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = write_tree(false);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/structures/git_objects.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |         read_from_disk(sha);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let _ = read_from_disk(sha);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/structures/sha.rs:100:34
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 for dir_entry in read_dir(path) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stdout] 100 +                 while let Ok(dir_entry) = read_dir(path) {
[INFO] [stdout]     |
[INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 for dir_entry in read_dir(path)? {
[INFO] [stdout]     |                                                +
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stdout] 100 +                 if let Ok(dir_entry) = read_dir(path) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "b182326f08a86f2ff0ce035f306dfea3d7ce3be0734eb7bb54d9a7d8ee89f2a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b182326f08a86f2ff0ce035f306dfea3d7ce3be0734eb7bb54d9a7d8ee89f2a3", kill_on_drop: false }`
[INFO] [stdout] b182326f08a86f2ff0ce035f306dfea3d7ce3be0734eb7bb54d9a7d8ee89f2a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2efb46b9b967311bebd4b021c6a12e4b9956e2b95f42cb70f273018aa1a84020
[INFO] running `Command { std: "docker" "start" "-a" "2efb46b9b967311bebd4b021c6a12e4b9956e2b95f42cb70f273018aa1a84020", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/structures/index.rs:532:13
[INFO] [stderr]     |
[INFO] [stderr] 532 |         let f = IndexFile::from_disk().unwrap();
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/commands/write_tree.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         write_tree(false);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let _ = write_tree(false);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/structures/git_objects.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 |         read_from_disk(sha);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 158 |         let _ = read_from_disk(sha);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/structures/sha.rs:100:34
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 for dir_entry in read_dir(path) {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stderr] 100 +                 while let Ok(dir_entry) = read_dir(path) {
[INFO] [stderr]     |
[INFO] [stderr] help: consider unwrapping the `Result` with `?` to iterate over its contents
[INFO] [stderr]     |
[INFO] [stderr] 100 |                 for dir_entry in read_dir(path)? {
[INFO] [stderr]     |                                                +
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 100 -                 for dir_entry in read_dir(path) {
[INFO] [stderr] 100 +                 if let Ok(dir_entry) = read_dir(path) {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `re_flog` (bin "re_flog" test) generated 4 warnings
[INFO] [stderr] warning: `re_flog` (bin "re_flog") generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/re_flog-766509b9efdfe043)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test structures::common::tests::sha_from_path ... ok
[INFO] [stdout] test structures::index::tests::header_deserialize ... ok
[INFO] [stdout] test structures::index::tests::header_serialize ... ok
[INFO] [stderr] error: test failed, to rerun pass `--bin re_flog`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/re_flog-766509b9efdfe043` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --nocapture to the harness.
[INFO] running `Command { std: "docker" "inspect" "2efb46b9b967311bebd4b021c6a12e4b9956e2b95f42cb70f273018aa1a84020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2efb46b9b967311bebd4b021c6a12e4b9956e2b95f42cb70f273018aa1a84020", kill_on_drop: false }`
[INFO] [stdout] 2efb46b9b967311bebd4b021c6a12e4b9956e2b95f42cb70f273018aa1a84020
