[INFO] updating cached repository remram44/reprozip-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/remram44/reprozip-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/remram44/reprozip-rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/remram44/reprozip-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/remram44/reprozip-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/remram44/reprozip-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/remram44/reprozip-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/remram44/reprozip-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3291ead4ceab663be1cb7d164e80484f2d7fd404
[INFO] sha for GitHub repo remram44/reprozip-rs: 3291ead4ceab663be1cb7d164e80484f2d7fd404
[INFO] validating manifest of remram44/reprozip-rs 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 remram44/reprozip-rs 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 remram44/reprozip-rs
[INFO] finished frobbing remram44/reprozip-rs
[INFO] frobbed toml for remram44/reprozip-rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/remram44/reprozip-rs/Cargo.toml
[INFO] started frobbing remram44/reprozip-rs
[INFO] finished frobbing remram44/reprozip-rs
[INFO] frobbed toml for remram44/reprozip-rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/remram44/reprozip-rs/Cargo.toml
[INFO] crate remram44/reprozip-rs 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 remram44/reprozip-rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-3/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/remram44/reprozip-rs:/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] 177ddf8163f7699de6774875fcf1c9d97007df6b20330fd0cf630c4a1500b5d0
[INFO] running `"docker" "start" "-a" "177ddf8163f7699de6774875fcf1c9d97007df6b20330fd0cf630c4a1500b5d0"`
[INFO] [stderr]     Checking slog-scope v4.0.1
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking reprozip v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]    --> src/lib.rs:329:57
[INFO] [stderr]     |
[INFO] [stderr] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stderr]     |                                                         ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]    --> src/lib.rs:329:52
[INFO] [stderr]     |
[INFO] [stderr] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stderr]     |                                                    ^^^ help: consider prefixing with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/database.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         path: D,
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]    --> src/lib.rs:329:57
[INFO] [stderr]     |
[INFO] [stderr] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stderr]     |                                                         ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]    --> src/lib.rs:329:52
[INFO] [stderr]     |
[INFO] [stderr] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stderr]     |                                                    ^^^ help: consider prefixing with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/database.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         path: D,
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `tid`
[INFO] [stderr]   --> src/lib.rs:70:15
[INFO] [stderr]    |
[INFO] [stderr] 70 |     Unknown { tid: Pid },
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_pid`
[INFO] [stderr]    --> src/lib.rs:169:5
[INFO] [stderr]     |
[INFO] [stderr] 169 |     fn get_pid(&self, pid: Pid) -> &Thread {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_identifier`
[INFO] [stderr]    --> src/lib.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 |     fn get_identifier(&self, id: ProcessId) -> &Thread {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_identifier_mut`
[INFO] [stderr]    --> src/lib.rs:182:5
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn get_identifier_mut(&mut self, id: ProcessId) -> &mut Thread {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `tid`
[INFO] [stderr]   --> src/lib.rs:70:15
[INFO] [stderr]    |
[INFO] [stderr] 70 |     Unknown { tid: Pid },
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_pid`
[INFO] [stderr]    --> src/lib.rs:169:5
[INFO] [stderr]     |
[INFO] [stderr] 169 |     fn get_pid(&self, pid: Pid) -> &Thread {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_identifier`
[INFO] [stderr]    --> src/lib.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 |     fn get_identifier(&self, id: ProcessId) -> &Thread {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_identifier_mut`
[INFO] [stderr]    --> src/lib.rs:182:5
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn get_identifier_mut(&mut self, id: ProcessId) -> &mut Thread {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `"docker" "inspect" "177ddf8163f7699de6774875fcf1c9d97007df6b20330fd0cf630c4a1500b5d0"`
[INFO] running `"docker" "rm" "-f" "177ddf8163f7699de6774875fcf1c9d97007df6b20330fd0cf630c4a1500b5d0"`
[INFO] [stdout] 177ddf8163f7699de6774875fcf1c9d97007df6b20330fd0cf630c4a1500b5d0