[INFO] cloning repository https://github.com/saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaikatdas0790%2F6.0001-introduction-to-computer-science-and-programming-in-python", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaikatdas0790%2F6.0001-introduction-to-computer-science-and-programming-in-python'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3a18e0d0c28fc15092627d38399404fb2cac1d0
[INFO] checking saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python against master#a932eb36f8adf6c8cdfc450f063943da3112d621 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaikatdas0790%2F6.0001-introduction-to-computer-science-and-programming-in-python" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python on toolchain a932eb36f8adf6c8cdfc450f063943da3112d621
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python
[INFO] finished tweaking git repo https://github.com/saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python
[INFO] tweaked toml for git repo https://github.com/saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/saikatdas0790/6.0001-introduction-to-computer-science-and-programming-in-python 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" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de0cfb2cb119bd6c07aa6c02661304d0f76806e3b4bbfa7ce7f9d18618148ba7
[INFO] running `Command { std: "docker" "start" "-a" "de0cfb2cb119bd6c07aa6c02661304d0f76806e3b4bbfa7ce7f9d18618148ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de0cfb2cb119bd6c07aa6c02661304d0f76806e3b4bbfa7ce7f9d18618148ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de0cfb2cb119bd6c07aa6c02661304d0f76806e3b4bbfa7ce7f9d18618148ba7", kill_on_drop: false }`
[INFO] [stdout] de0cfb2cb119bd6c07aa6c02661304d0f76806e3b4bbfa7ce7f9d18618148ba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fdd6684c59b1b0a9cebcae0d14245b1055b9280927268e8cf3f709a16eaf894
[INFO] running `Command { std: "docker" "start" "-a" "5fdd6684c59b1b0a9cebcae0d14245b1055b9280927268e8cf3f709a16eaf894", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking house_hunting v0.1.0 (/opt/rustwide/workdir/problem_set_1/house_hunting)
[INFO] [stderr]     Checking finding_the_right_amount_to_save_away v0.1.0 (/opt/rustwide/workdir/problem_set_1/finding_the_right_amount_to_save_away)
[INFO] [stderr]     Checking permutation v0.1.0 (/opt/rustwide/workdir/problem_set_4/permutation)
[INFO] [stderr]     Checking saving_with_a_raise v0.1.0 (/opt/rustwide/workdir/problem_set_1/saving_with_a_raise)
[INFO] [stderr]     Checking problem_set_0 v0.1.0 (/opt/rustwide/workdir/problem_set_0)
[INFO] [stderr]     Checking caesar_cipher v0.1.0 (/opt/rustwide/workdir/problem_set_4/caesar_cipher)
[INFO] [stderr]     Checking rss_feeder v0.1.0 (/opt/rustwide/workdir/problem_set_5/rss_feeder)
[INFO] [stderr]     Checking word_game v0.1.0 (/opt/rustwide/workdir/problem_set_3/word_game)
[INFO] [stdout] warning: trait `PhraseTrigger` is never used
[INFO] [stdout]  --> problem_set_5/rss_feeder/src/phrase_trigger.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait PhraseTrigger: Trigger {
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PhraseTriggerImpl` is never constructed
[INFO] [stdout]  --> problem_set_5/rss_feeder/src/phrase_trigger.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct PhraseTriggerImpl {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `is_phrase_in` are never used
[INFO] [stdout]   --> problem_set_5/rss_feeder/src/phrase_trigger.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl PhraseTriggerImpl {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(phrase: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn is_phrase_in(&self, text: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trigger` is never used
[INFO] [stdout]  --> problem_set_5/rss_feeder/src/trigger.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Trigger {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking substitution_cipher v0.1.0 (/opt/rustwide/workdir/problem_set_4/substitution_cipher)
[INFO] [stdout] warning: trait `PhraseTrigger` is never used
[INFO] [stdout]  --> problem_set_5/rss_feeder/src/phrase_trigger.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait PhraseTrigger: Trigger {
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PhraseTriggerImpl` is never constructed
[INFO] [stdout]  --> problem_set_5/rss_feeder/src/phrase_trigger.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct PhraseTriggerImpl {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `is_phrase_in` are never used
[INFO] [stdout]   --> problem_set_5/rss_feeder/src/phrase_trigger.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl PhraseTriggerImpl {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(phrase: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn is_phrase_in(&self, text: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trigger` is never used
[INFO] [stdout]  --> problem_set_5/rss_feeder/src/trigger.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Trigger {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking hangman v0.1.0 (/opt/rustwide/workdir/problem_set_2/hangman)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "5fdd6684c59b1b0a9cebcae0d14245b1055b9280927268e8cf3f709a16eaf894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fdd6684c59b1b0a9cebcae0d14245b1055b9280927268e8cf3f709a16eaf894", kill_on_drop: false }`
[INFO] [stdout] 5fdd6684c59b1b0a9cebcae0d14245b1055b9280927268e8cf3f709a16eaf894