[INFO] cloning repository https://github.com/yuizho/rust_system_programming_introduction [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuizho/rust_system_programming_introduction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuizho%2Frust_system_programming_introduction"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuizho%2Frust_system_programming_introduction'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] bee2ddc890ff2e036f18e3af0ee0b63c5b554012 [INFO] testing yuizho/rust_system_programming_introduction against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuizho%2Frust_system_programming_introduction" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yuizho/rust_system_programming_introduction 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/yuizho/rust_system_programming_introduction [INFO] finished tweaking git repo https://github.com/yuizho/rust_system_programming_introduction [INFO] tweaked toml for git repo https://github.com/yuizho/rust_system_programming_introduction written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/yuizho/rust_system_programming_introduction 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 10c25bdf2c8d1d31be7369eb0f11f59116b38bc741d23fccb00b265bacafc068 [INFO] running `"docker" "start" "-a" "10c25bdf2c8d1d31be7369eb0f11f59116b38bc741d23fccb00b265bacafc068"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust_system_programming_introduction v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/writer/network.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | stream.write(b"GET / HTTP/1.0\r\nHost: ascii.jp\r\n\r\n"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/writer/network.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | stream.read_to_string(&mut buff); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/reader/file.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let mut reader = BufReader::with_capacity(4, f); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/reader/file.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | f.read_to_string(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.55s [INFO] running `"docker" "inspect" "10c25bdf2c8d1d31be7369eb0f11f59116b38bc741d23fccb00b265bacafc068"` [INFO] running `"docker" "rm" "-f" "10c25bdf2c8d1d31be7369eb0f11f59116b38bc741d23fccb00b265bacafc068"` [INFO] [stdout] 10c25bdf2c8d1d31be7369eb0f11f59116b38bc741d23fccb00b265bacafc068 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2a4bc0541fb1b40a1a825807d24a2af89f29b71b204453792d0e2252cdf2da0b [INFO] running `"docker" "start" "-a" "2a4bc0541fb1b40a1a825807d24a2af89f29b71b204453792d0e2252cdf2da0b"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust_system_programming_introduction v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/writer/network.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | stream.write(b"GET / HTTP/1.0\r\nHost: ascii.jp\r\n\r\n"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/writer/network.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | stream.read_to_string(&mut buff); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/reader/file.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let mut reader = BufReader::with_capacity(4, f); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/reader/file.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | f.read_to_string(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.56s [INFO] running `"docker" "inspect" "2a4bc0541fb1b40a1a825807d24a2af89f29b71b204453792d0e2252cdf2da0b"` [INFO] running `"docker" "rm" "-f" "2a4bc0541fb1b40a1a825807d24a2af89f29b71b204453792d0e2252cdf2da0b"` [INFO] [stdout] 2a4bc0541fb1b40a1a825807d24a2af89f29b71b204453792d0e2252cdf2da0b [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 872af92b88b9bda2df8dfc4d9e3806bc315e7b449d7ff9ebbb42d4a380139b67 [INFO] running `"docker" "start" "-a" "872af92b88b9bda2df8dfc4d9e3806bc315e7b449d7ff9ebbb42d4a380139b67"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/reader/file.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let mut reader = BufReader::with_capacity(4, f); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/reader/file.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | f.read_to_string(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/writer/network.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | stream.write(b"GET / HTTP/1.0\r\nHost: ascii.jp\r\n\r\n"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/writer/network.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | stream.read_to_string(&mut buff); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/copy-db674251d4b4fcb7 [INFO] [stderr] Running /opt/rustwide/target/debug/deps/http_server-d3309ca24d1f419f [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 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/reader_file-88421abe30635867 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/writer_file-a07990fb921a78c9 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/writer_network-37aa794609baf104 [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 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/writer_stdout-29dc25d4cc7ab01c [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "872af92b88b9bda2df8dfc4d9e3806bc315e7b449d7ff9ebbb42d4a380139b67"` [INFO] running `"docker" "rm" "-f" "872af92b88b9bda2df8dfc4d9e3806bc315e7b449d7ff9ebbb42d4a380139b67"` [INFO] [stdout] 872af92b88b9bda2df8dfc4d9e3806bc315e7b449d7ff9ebbb42d4a380139b67