[INFO] cloning repository https://github.com/remram44/reprozip-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/remram44/reprozip-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremram44%2Freprozip-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremram44%2Freprozip-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 994b9b8c83f4b6acf2df5bbcc8ab945868167181
[INFO] checking remram44/reprozip-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fremram44%2Freprozip-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/remram44/reprozip-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/remram44/reprozip-rs
[INFO] finished tweaking git repo https://github.com/remram44/reprozip-rs
[INFO] tweaked toml for git repo https://github.com/remram44/reprozip-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/remram44/reprozip-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fc9cfb1ce6e7b8082ecdd65bcd14af794aae3a4908881d54d44314f240f0731
[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" "2fc9cfb1ce6e7b8082ecdd65bcd14af794aae3a4908881d54d44314f240f0731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fc9cfb1ce6e7b8082ecdd65bcd14af794aae3a4908881d54d44314f240f0731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc9cfb1ce6e7b8082ecdd65bcd14af794aae3a4908881d54d44314f240f0731", kill_on_drop: false }`
[INFO] [stdout] 2fc9cfb1ce6e7b8082ecdd65bcd14af794aae3a4908881d54d44314f240f0731
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f45f0dc35a4598db9c8352c22231cca161effe1ce5a593c436689d223df76c42
[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" "f45f0dc35a4598db9c8352c22231cca161effe1ce5a593c436689d223df76c42", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking slog-scope v4.0.1
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking reprozip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> src/lib.rs:329:52
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]    --> src/lib.rs:329:57
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/database.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         path: D,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sig`
[INFO] [stdout]    --> src/lib.rs:329:52
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_sig`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]    --> src/lib.rs:329:57
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 wait::WaitStatus::PtraceEvent(pid, sig, event) => {
[INFO] [stdout]     |                                                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/database.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         path: D,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tid`
[INFO] [stdout]   --> src/lib.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Unknown { tid: Pid },
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_pid`
[INFO] [stdout]    --> src/lib.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn get_pid(&self, pid: Pid) -> &Thread {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_identifier`
[INFO] [stdout]    --> src/lib.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn get_identifier(&self, id: ProcessId) -> &Thread {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_identifier_mut`
[INFO] [stdout]    --> src/lib.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn get_identifier_mut(&mut self, id: ProcessId) -> &mut Thread {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tid`
[INFO] [stdout]   --> src/lib.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Unknown { tid: Pid },
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_pid`
[INFO] [stdout]    --> src/lib.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn get_pid(&self, pid: Pid) -> &Thread {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_identifier`
[INFO] [stdout]    --> src/lib.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn get_identifier(&self, id: ProcessId) -> &Thread {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_identifier_mut`
[INFO] [stdout]    --> src/lib.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn get_identifier_mut(&mut self, id: ProcessId) -> &mut Thread {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.56s
[INFO] running `Command { std: "docker" "inspect" "f45f0dc35a4598db9c8352c22231cca161effe1ce5a593c436689d223df76c42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f45f0dc35a4598db9c8352c22231cca161effe1ce5a593c436689d223df76c42", kill_on_drop: false }`
[INFO] [stdout] f45f0dc35a4598db9c8352c22231cca161effe1ce5a593c436689d223df76c42