[INFO] fetching crate rwth_cli 0.1.3...
[INFO] checking rwth_cli-0.1.3 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate rwth_cli 0.1.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rwth_cli 0.1.3 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rwth_cli 0.1.3
[INFO] finished tweaking crates.io crate rwth_cli 0.1.3
[INFO] tweaked toml for crates.io crate rwth_cli 0.1.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rwth_cli 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57c4ecc18bdbf6eb0e015746bb4d74d67b6fe61f45509d83b9895f868781a5f8
[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" "57c4ecc18bdbf6eb0e015746bb4d74d67b6fe61f45509d83b9895f868781a5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57c4ecc18bdbf6eb0e015746bb4d74d67b6fe61f45509d83b9895f868781a5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c4ecc18bdbf6eb0e015746bb4d74d67b6fe61f45509d83b9895f868781a5f8", kill_on_drop: false }`
[INFO] [stdout] 57c4ecc18bdbf6eb0e015746bb4d74d67b6fe61f45509d83b9895f868781a5f8
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d953df65265649b2e99791aa576f34b7d099c038794afc4bd9c8bc0061cf76b3
[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" "d953df65265649b2e99791aa576f34b7d099c038794afc4bd9c8bc0061cf76b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking tower-service v0.3.0
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[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling indexmap v1.3.0
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[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking want v0.3.0
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[INFO] [stderr]    Compiling mime_guess v2.0.1
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[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling quote v1.0.2
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[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking hyper v0.13.1
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.1
[INFO] [stderr]     Checking rwth_cli v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `l2p_matches`
[INFO] [stdout]    --> src/main.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 ("l2p", Some(l2p_matches)) => {
[INFO] [stdout]     |                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l2p_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l2p_matches`
[INFO] [stdout]    --> src/main.rs:124:30
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 ("l2p", Some(l2p_matches)) => {
[INFO] [stdout]     |                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l2p_matches`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `list_files_in_course_topic`
[INFO] [stdout]   --> src/user_interaction/clap_subcommands.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn list_files_in_course_topic(courseid: &str, topicname: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_progress_bar`
[INFO] [stdout]    --> src/user_interaction/clap_subcommands.rs:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | fn create_progress_bar(msg: &str, length: Option<u64>) -> ProgressBar {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `list_files_in_course_topic`
[INFO] [stdout]   --> src/user_interaction/clap_subcommands.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn list_files_in_course_topic(courseid: &str, topicname: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_progress_bar`
[INFO] [stdout]    --> src/user_interaction/clap_subcommands.rs:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | fn create_progress_bar(msg: &str, length: Option<u64>) -> ProgressBar {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "d953df65265649b2e99791aa576f34b7d099c038794afc4bd9c8bc0061cf76b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d953df65265649b2e99791aa576f34b7d099c038794afc4bd9c8bc0061cf76b3", kill_on_drop: false }`
[INFO] [stdout] d953df65265649b2e99791aa576f34b7d099c038794afc4bd9c8bc0061cf76b3