[INFO] cloning repository https://github.com/JamesVStone/xkcd_fetcher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamesVStone/xkcd_fetcher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVStone%2Fxkcd_fetcher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVStone%2Fxkcd_fetcher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 082678041aa5fcaac285804af104299860bb9621
[INFO] testing JamesVStone/xkcd_fetcher against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVStone%2Fxkcd_fetcher" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamesVStone/xkcd_fetcher on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JamesVStone/xkcd_fetcher
[INFO] finished tweaking git repo https://github.com/JamesVStone/xkcd_fetcher
[INFO] tweaked toml for git repo https://github.com/JamesVStone/xkcd_fetcher written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/JamesVStone/xkcd_fetcher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inflate v0.3.4
[INFO] [stderr]   Downloaded png v0.11.0
[INFO] [stderr]   Downloaded image v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a0838057cbd9f04420a333b65b00650ab5f155e79a1a56f21d823e6e0ff15d7
[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" "1a0838057cbd9f04420a333b65b00650ab5f155e79a1a56f21d823e6e0ff15d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a0838057cbd9f04420a333b65b00650ab5f155e79a1a56f21d823e6e0ff15d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0838057cbd9f04420a333b65b00650ab5f155e79a1a56f21d823e6e0ff15d7", kill_on_drop: false }`
[INFO] [stdout] 1a0838057cbd9f04420a333b65b00650ab5f155e79a1a56f21d823e6e0ff15d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5f17cf6dff8e7d5f8b3fb795148d093f02fc375dcffc757b9eb6de6a84be8b9
[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" "f5f17cf6dff8e7d5f8b3fb795148d093f02fc375dcffc757b9eb6de6a84be8b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling lock_api v0.3.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.17
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling tokio-reactor v0.1.11
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling publicsuffix v1.5.4
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling image v0.17.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling reqwest v0.9.24
[INFO] [stderr]    Compiling xkcd_fetcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     std::fs::remove_file(&path);
[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 `Result` that must be used
[INFO] [stdout]   --> src/main.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     std::io::copy(&mut req, &mut file);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.53s
[INFO] running `Command { std: "docker" "inspect" "f5f17cf6dff8e7d5f8b3fb795148d093f02fc375dcffc757b9eb6de6a84be8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5f17cf6dff8e7d5f8b3fb795148d093f02fc375dcffc757b9eb6de6a84be8b9", kill_on_drop: false }`
[INFO] [stdout] f5f17cf6dff8e7d5f8b3fb795148d093f02fc375dcffc757b9eb6de6a84be8b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33afc527ea1273f26f0f39f05aa5e7cf70ad58638a4bc4cae7783b28e4583363
[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" "33afc527ea1273f26f0f39f05aa5e7cf70ad58638a4bc4cae7783b28e4583363", kill_on_drop: false }`
[INFO] [stderr]    Compiling xkcd_fetcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     std::fs::remove_file(&path);
[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 `Result` that must be used
[INFO] [stdout]   --> src/main.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     std::io::copy(&mut req, &mut file);
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "33afc527ea1273f26f0f39f05aa5e7cf70ad58638a4bc4cae7783b28e4583363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33afc527ea1273f26f0f39f05aa5e7cf70ad58638a4bc4cae7783b28e4583363", kill_on_drop: false }`
[INFO] [stdout] 33afc527ea1273f26f0f39f05aa5e7cf70ad58638a4bc4cae7783b28e4583363
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7567a64d1d5ebdbd1488305ffb5033dc0ce66c36cfefe0497fce46bade57d667
[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" "7567a64d1d5ebdbd1488305ffb5033dc0ce66c36cfefe0497fce46bade57d667", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     std::fs::remove_file(&path);
[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 `Result` that must be used
[INFO] [stderr]   --> src/main.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     std::io::copy(&mut req, &mut file);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `xkcd_fetcher` (bin "xkcd_fetcher" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xkcd_fetcher-4c7de4604656faf4)
[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" "7567a64d1d5ebdbd1488305ffb5033dc0ce66c36cfefe0497fce46bade57d667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7567a64d1d5ebdbd1488305ffb5033dc0ce66c36cfefe0497fce46bade57d667", kill_on_drop: false }`
[INFO] [stdout] 7567a64d1d5ebdbd1488305ffb5033dc0ce66c36cfefe0497fce46bade57d667