[INFO] updating cached repository https://github.com/mox692/mfs [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d9d8b76311b638e6ac70e5d15a56770172b3e00a [INFO] testing mox692/mfs against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmox692%2Fmfs" "/workspace/builds/worker-115/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mox692/mfs on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mox692/mfs [INFO] finished tweaking git repo https://github.com/mox692/mfs [INFO] tweaked toml for git repo https://github.com/mox692/mfs written to /workspace/builds/worker-115/source/Cargo.toml [INFO] crate git repo https://github.com/mox692/mfs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 70bf358f522d21c27f053ec72a82c6bcf973bae224e7e23490fae717949b1df8 [INFO] running `Command { std: "docker" "start" "-a" "70bf358f522d21c27f053ec72a82c6bcf973bae224e7e23490fae717949b1df8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "70bf358f522d21c27f053ec72a82c6bcf973bae224e7e23490fae717949b1df8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70bf358f522d21c27f053ec72a82c6bcf973bae224e7e23490fae717949b1df8", kill_on_drop: false }` [INFO] [stdout] 70bf358f522d21c27f053ec72a82c6bcf973bae224e7e23490fae717949b1df8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ace53332bee961a36b8e160de6aff82580b5df8ebb67e5ab9c1683edfcade52 [INFO] running `Command { std: "docker" "start" "-a" "7ace53332bee961a36b8e160de6aff82580b5df8ebb67e5ab9c1683edfcade52", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling mfs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `file_name` [INFO] [stdout] --> src/flat_fs/fs.rs:25:25 [INFO] [stdout] | [INFO] [stdout] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `contents` [INFO] [stdout] --> src/flat_fs/fs.rs:25:39 [INFO] [stdout] | [INFO] [stdout] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file_name` [INFO] [stdout] --> src/flat_fs/fs.rs:28:20 [INFO] [stdout] | [INFO] [stdout] 28 | fn read(&self, file_name: S) -> Option { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 18.83s [INFO] running `Command { std: "docker" "inspect" "7ace53332bee961a36b8e160de6aff82580b5df8ebb67e5ab9c1683edfcade52", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ace53332bee961a36b8e160de6aff82580b5df8ebb67e5ab9c1683edfcade52", kill_on_drop: false }` [INFO] [stdout] 7ace53332bee961a36b8e160de6aff82580b5df8ebb67e5ab9c1683edfcade52 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5348312762b407c4dcaaef1576f179b41bc8900197f5b049f972d9d71a85078 [INFO] running `Command { std: "docker" "start" "-a" "c5348312762b407c4dcaaef1576f179b41bc8900197f5b049f972d9d71a85078", kill_on_drop: false }` [INFO] [stderr] Compiling mfs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `file_name` [INFO] [stdout] --> src/flat_fs/fs.rs:25:25 [INFO] [stdout] | [INFO] [stdout] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `contents` [INFO] [stdout] --> src/flat_fs/fs.rs:25:39 [INFO] [stdout] | [INFO] [stdout] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file_name` [INFO] [stdout] --> src/flat_fs/fs.rs:28:20 [INFO] [stdout] | [INFO] [stdout] 28 | fn read(&self, file_name: S) -> Option { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/flat_fs/fs.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file_name` [INFO] [stdout] --> src/flat_fs/fs.rs:25:25 [INFO] [stdout] | [INFO] [stdout] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `contents` [INFO] [stdout] --> src/flat_fs/fs.rs:25:39 [INFO] [stdout] | [INFO] [stdout] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file_name` [INFO] [stdout] --> src/flat_fs/fs.rs:28:20 [INFO] [stdout] | [INFO] [stdout] 28 | fn read(&self, file_name: S) -> Option { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> tests/test.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let a: Option = fs.read("aa"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.38s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/mfs-187ecf2e7b256b38) [INFO] [stderr] Executable tests/test.rs (/opt/rustwide/target/debug/deps/test-f04ea5aac4b324a0) [INFO] running `Command { std: "docker" "inspect" "c5348312762b407c4dcaaef1576f179b41bc8900197f5b049f972d9d71a85078", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5348312762b407c4dcaaef1576f179b41bc8900197f5b049f972d9d71a85078", kill_on_drop: false }` [INFO] [stdout] c5348312762b407c4dcaaef1576f179b41bc8900197f5b049f972d9d71a85078 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8d154a59271aa680b09d52728ddb36b5ddc1b41f237a84a6dcfde5bfcfca60f6 [INFO] running `Command { std: "docker" "start" "-a" "8d154a59271aa680b09d52728ddb36b5ddc1b41f237a84a6dcfde5bfcfca60f6", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused variable: `file_name` [INFO] [stderr] --> src/flat_fs/fs.rs:25:25 [INFO] [stderr] | [INFO] [stderr] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `contents` [INFO] [stderr] --> src/flat_fs/fs.rs:25:39 [INFO] [stderr] | [INFO] [stderr] 25 | fn write(&mut self, file_name: S, contents: S) -> Option { [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `file_name` [INFO] [stderr] --> src/flat_fs/fs.rs:28:20 [INFO] [stderr] | [INFO] [stderr] 28 | fn read(&self, file_name: S) -> Option { [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name` [INFO] [stderr] [INFO] [stderr] warning: `mfs` (lib) generated 3 warnings [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/flat_fs/fs.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `mfs` (lib test) generated 4 warnings (3 duplicates) [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> tests/test.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let a: Option = fs.read("aa"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `mfs` (test "test") generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.87s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mfs-187ecf2e7b256b38) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test flat_fs::fs::tests::test_new ... ok [INFO] [stderr] Running tests/test.rs (/opt/rustwide/target/debug/deps/test-f04ea5aac4b324a0) [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Doc-tests mfs [INFO] [stdout] running 1 test [INFO] [stdout] test test_display ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8d154a59271aa680b09d52728ddb36b5ddc1b41f237a84a6dcfde5bfcfca60f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d154a59271aa680b09d52728ddb36b5ddc1b41f237a84a6dcfde5bfcfca60f6", kill_on_drop: false }` [INFO] [stdout] 8d154a59271aa680b09d52728ddb36b5ddc1b41f237a84a6dcfde5bfcfca60f6