[INFO] updating cached repository andrewmichaud/podstats
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andrewmichaud/podstats
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewmichaud/podstats" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/andrewmichaud/podstats"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/andrewmichaud/podstats'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewmichaud/podstats" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/andrewmichaud/podstats"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/andrewmichaud/podstats'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3fe7081d266ae58a148ed9f116d0768a77318729
[INFO] sha for GitHub repo andrewmichaud/podstats: 3fe7081d266ae58a148ed9f116d0768a77318729
[INFO] validating manifest of andrewmichaud/podstats on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of andrewmichaud/podstats on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing andrewmichaud/podstats
[INFO] finished frobbing andrewmichaud/podstats
[INFO] frobbed toml for andrewmichaud/podstats written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/andrewmichaud/podstats/Cargo.toml
[INFO] started frobbing andrewmichaud/podstats
[INFO] finished frobbing andrewmichaud/podstats
[INFO] frobbed toml for andrewmichaud/podstats written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/andrewmichaud/podstats/Cargo.toml
[INFO] crate andrewmichaud/podstats already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking andrewmichaud/podstats against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/andrewmichaud/podstats:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 879e0af19ec77736f2fd2c62d90f624f54ec1799833f4971693201b6290e32a9
[INFO] running `"docker" "start" "-a" "879e0af19ec77736f2fd2c62d90f624f54ec1799833f4971693201b6290e32a9"`
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking rmp v0.8.7
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]     Checking podstats v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/subscription.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/subscription.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_config`
[INFO] [stderr]    --> src/config.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | pub fn read_config() -> Option<Config> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_config`
[INFO] [stderr]    --> src/config.rs:138:1
[INFO] [stderr]     |
[INFO] [stderr] 138 | pub fn write_config(config: Config) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/subscription.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(url: &str, name: &str, directory: Option<&str>) -> Subscription {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vec_serialize`
[INFO] [stderr]   --> src/subscription.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn vec_serialize(subs: &Vec<Subscription>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `serialize`
[INFO] [stderr]   --> src/subscription.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn serialize(sub: &Subscription) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deserialize`
[INFO] [stderr]   --> src/subscription.rs:85:1
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn deserialize(sub_vec: &Vec<u8>) -> Option<Subscription> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process_directory`
[INFO] [stderr]    --> src/subscription.rs:128:1
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn process_directory(directory: Option<&str>) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_config`
[INFO] [stderr]    --> src/config.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | pub fn read_config() -> Option<Config> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_config`
[INFO] [stderr]    --> src/config.rs:138:1
[INFO] [stderr]     |
[INFO] [stderr] 138 | pub fn write_config(config: Config) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.77s
[INFO] running `"docker" "inspect" "879e0af19ec77736f2fd2c62d90f624f54ec1799833f4971693201b6290e32a9"`
[INFO] running `"docker" "rm" "-f" "879e0af19ec77736f2fd2c62d90f624f54ec1799833f4971693201b6290e32a9"`
[INFO] [stdout] 879e0af19ec77736f2fd2c62d90f624f54ec1799833f4971693201b6290e32a9