[INFO] cloning repository https://github.com/Sonahit/rust-mem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sonahit/rust-mem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonahit%2Frust-mem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonahit%2Frust-mem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 246f1827c7555bf75169f202308a21baf3acf620
[INFO] testing Sonahit/rust-mem against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628-retry-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSonahit%2Frust-mem" "/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/Sonahit/rust-mem
[INFO] finished tweaking git repo https://github.com/Sonahit/rust-mem
[INFO] tweaked toml for git repo https://github.com/Sonahit/rust-mem written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Sonahit/rust-mem on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Sonahit/rust-mem 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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2df8c72d899293a629d0878d462a249f30bb05ea4796d8128003709dfd44599
[INFO] running `Command { std: "docker" "start" "-a" "d2df8c72d899293a629d0878d462a249f30bb05ea4796d8128003709dfd44599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2df8c72d899293a629d0878d462a249f30bb05ea4796d8128003709dfd44599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2df8c72d899293a629d0878d462a249f30bb05ea4796d8128003709dfd44599", kill_on_drop: false }`
[INFO] [stdout] d2df8c72d899293a629d0878d462a249f30bb05ea4796d8128003709dfd44599
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9092e18c258fca2362ca0b0a49ec68919bd89ee898e17fdc5f9bd1272cfcb648
[INFO] running `Command { std: "docker" "start" "-a" "9092e18c258fca2362ca0b0a49ec68919bd89ee898e17fdc5f9bd1272cfcb648", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling hook_protocol v0.1.0 (https://github.com/Sonahit/rust-hook#db05feeb)
[INFO] [stderr]    Compiling mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `read_file_concurrent` is never used
[INFO] [stdout]  --> src/read_file.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_file_concurrent(filename: &str) -> Result<Vec<u8>, std::io::Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `drain_reader` is never used
[INFO] [stdout]   --> src/read_file.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn drain_reader(reader: &mut BufReader<File>, sender: Sender<u8>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.30s
[INFO] running `Command { std: "docker" "inspect" "9092e18c258fca2362ca0b0a49ec68919bd89ee898e17fdc5f9bd1272cfcb648", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9092e18c258fca2362ca0b0a49ec68919bd89ee898e17fdc5f9bd1272cfcb648", kill_on_drop: false }`
[INFO] [stdout] 9092e18c258fca2362ca0b0a49ec68919bd89ee898e17fdc5f9bd1272cfcb648
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d0f38b318698a7f684012b6987bd7362ee9d8fdf7a537e8ac20a18dead3d049
[INFO] running `Command { std: "docker" "start" "-a" "7d0f38b318698a7f684012b6987bd7362ee9d8fdf7a537e8ac20a18dead3d049", kill_on_drop: false }`
[INFO] [stderr]    Compiling mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `read_file_concurrent` is never used
[INFO] [stdout]  --> src/read_file.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_file_concurrent(filename: &str) -> Result<Vec<u8>, std::io::Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `drain_reader` is never used
[INFO] [stdout]   --> src/read_file.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn drain_reader(reader: &mut BufReader<File>, sender: Sender<u8>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "7d0f38b318698a7f684012b6987bd7362ee9d8fdf7a537e8ac20a18dead3d049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d0f38b318698a7f684012b6987bd7362ee9d8fdf7a537e8ac20a18dead3d049", kill_on_drop: false }`
[INFO] [stdout] 7d0f38b318698a7f684012b6987bd7362ee9d8fdf7a537e8ac20a18dead3d049
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8f938f26d20d3bf85d365555e315bff2b5c8546a6ccf5b9286d44e1556aa32e8
[INFO] running `Command { std: "docker" "start" "-a" "8f938f26d20d3bf85d365555e315bff2b5c8546a6ccf5b9286d44e1556aa32e8", kill_on_drop: false }`
[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] [stderr] warning: function `read_file_concurrent` is never used
[INFO] [stderr]  --> src/read_file.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn read_file_concurrent(filename: &str) -> Result<Vec<u8>, std::io::Error> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `drain_reader` is never used
[INFO] [stderr]   --> src/read_file.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn drain_reader(reader: &mut BufReader<File>, sender: Sender<u8>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mem` (bin "mem" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mem-612f50021cd3795e)
[INFO] running `Command { std: "docker" "inspect" "8f938f26d20d3bf85d365555e315bff2b5c8546a6ccf5b9286d44e1556aa32e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f938f26d20d3bf85d365555e315bff2b5c8546a6ccf5b9286d44e1556aa32e8", kill_on_drop: false }`
[INFO] [stdout] 8f938f26d20d3bf85d365555e315bff2b5c8546a6ccf5b9286d44e1556aa32e8