[INFO] updating cached repository https://github.com/stan4cb/rust-tools [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] f948c2b732deccdd5f1eef663df285f7df525315 [INFO] testing stan4cb/rust-tools against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstan4cb%2Frust-tools" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/stan4cb/rust-tools on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/stan4cb/rust-tools [INFO] finished tweaking git repo https://github.com/stan4cb/rust-tools [INFO] tweaked toml for git repo https://github.com/stan4cb/rust-tools written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/stan4cb/rust-tools already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8f4f211574e1c29b1adfcb3b21f161baf1fa510d99940800d11f9ac06b1c6c9a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8f4f211574e1c29b1adfcb3b21f161baf1fa510d99940800d11f9ac06b1c6c9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f4f211574e1c29b1adfcb3b21f161baf1fa510d99940800d11f9ac06b1c6c9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f4f211574e1c29b1adfcb3b21f161baf1fa510d99940800d11f9ac06b1c6c9a", kill_on_drop: false }` [INFO] [stdout] 8f4f211574e1c29b1adfcb3b21f161baf1fa510d99940800d11f9ac06b1c6c9a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1998ee8eacf9c98d5d9c27a53d052a961188e8aada4b8bf3e47db641278c7b95 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1998ee8eacf9c98d5d9c27a53d052a961188e8aada4b8bf3e47db641278c7b95", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-tools v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Read, Write, Seek, SeekFrom}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/tools.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:135:24 [INFO] [stdout] | [INFO] [stdout] 135 | Ok(res) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | file.read_exact(&mut x); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:138:25 [INFO] [stdout] | [INFO] [stdout] 138 | file.read_exact(&mut a); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:141:25 [INFO] [stdout] | [INFO] [stdout] 141 | file.read_exact(&mut a); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:144:25 [INFO] [stdout] | [INFO] [stdout] 144 | file.read_exact(&mut a); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.75s [INFO] running `Command { std: "docker" "inspect" "1998ee8eacf9c98d5d9c27a53d052a961188e8aada4b8bf3e47db641278c7b95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1998ee8eacf9c98d5d9c27a53d052a961188e8aada4b8bf3e47db641278c7b95", kill_on_drop: false }` [INFO] [stdout] 1998ee8eacf9c98d5d9c27a53d052a961188e8aada4b8bf3e47db641278c7b95 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] caff2f21d5e4b2c430df8b7c2538fcdda42bd0af431bf33f685cfc9a2e994c5f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "caff2f21d5e4b2c430df8b7c2538fcdda42bd0af431bf33f685cfc9a2e994c5f", kill_on_drop: false }` [INFO] [stderr] Compiling rust-tools v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{Read, Write, Seek, SeekFrom}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/tools.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `res` [INFO] [stdout] --> src/main.rs:135:24 [INFO] [stdout] | [INFO] [stdout] 135 | Ok(res) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | file.read_exact(&mut x); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:138:25 [INFO] [stdout] | [INFO] [stdout] 138 | file.read_exact(&mut a); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:141:25 [INFO] [stdout] | [INFO] [stdout] 141 | file.read_exact(&mut a); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:144:25 [INFO] [stdout] | [INFO] [stdout] 144 | file.read_exact(&mut a); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.74s [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "caff2f21d5e4b2c430df8b7c2538fcdda42bd0af431bf33f685cfc9a2e994c5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "caff2f21d5e4b2c430df8b7c2538fcdda42bd0af431bf33f685cfc9a2e994c5f", kill_on_drop: false }` [INFO] [stdout] caff2f21d5e4b2c430df8b7c2538fcdda42bd0af431bf33f685cfc9a2e994c5f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] cb7edac0054761b82a30f9c703f17b6b6aa0a92ca55c0a3035cd9d0c20bf791e [INFO] running `Command { std: "docker" "start" "-a" "cb7edac0054761b82a30f9c703f17b6b6aa0a92ca55c0a3035cd9d0c20bf791e", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `Write` [INFO] [stderr] --> src/main.rs:2:21 [INFO] [stderr] | [INFO] [stderr] 2 | use std::io::{Read, Write, Seek, SeekFrom}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/tools.rs:3:15 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{Read, Write}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `res` [INFO] [stderr] --> src/main.rs:135:24 [INFO] [stderr] | [INFO] [stderr] 135 | Ok(res) => { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_res` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:131:17 [INFO] [stderr] | [INFO] [stderr] 131 | file.read_exact(&mut x); [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/main.rs:138:25 [INFO] [stderr] | [INFO] [stderr] 138 | file.read_exact(&mut a); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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/main.rs:141:25 [INFO] [stderr] | [INFO] [stderr] 141 | file.read_exact(&mut a); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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/main.rs:144:25 [INFO] [stderr] | [INFO] [stderr] 144 | file.read_exact(&mut a); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_tools-90d3a46762009771 [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 `Command { std: "docker" "inspect" "cb7edac0054761b82a30f9c703f17b6b6aa0a92ca55c0a3035cd9d0c20bf791e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb7edac0054761b82a30f9c703f17b6b6aa0a92ca55c0a3035cd9d0c20bf791e", kill_on_drop: false }` [INFO] [stdout] cb7edac0054761b82a30f9c703f17b6b6aa0a92ca55c0a3035cd9d0c20bf791e