[INFO] updating cached repository Rep2/RS_2_lab
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Rep2/RS_2_lab
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Rep2/RS_2_lab" "work/ex/beta-1.37-6/sources/1.36.0/gh/Rep2/RS_2_lab"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Rep2/RS_2_lab'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Rep2/RS_2_lab" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Rep2/RS_2_lab"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Rep2/RS_2_lab'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 04983c92873fb56da2b806ea7bd6b70e11178bc0
[INFO] sha for GitHub repo Rep2/RS_2_lab: 04983c92873fb56da2b806ea7bd6b70e11178bc0
[INFO] validating manifest of Rep2/RS_2_lab on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Rep2/RS_2_lab on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Rep2/RS_2_lab
[INFO] finished frobbing Rep2/RS_2_lab
[INFO] frobbed toml for Rep2/RS_2_lab written to work/ex/beta-1.37-6/sources/1.36.0/gh/Rep2/RS_2_lab/Cargo.toml
[INFO] started frobbing Rep2/RS_2_lab
[INFO] finished frobbing Rep2/RS_2_lab
[INFO] frobbed toml for Rep2/RS_2_lab written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Rep2/RS_2_lab/Cargo.toml
[INFO] crate Rep2/RS_2_lab already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Rep2/RS_2_lab against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Rep2/RS_2_lab:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 1c3c4b76ec9afccd45450bbab7c0a4ebd5eb518aa16866d66e33a1a8357e1777
[INFO] running `"docker" "start" "-a" "1c3c4b76ec9afccd45450bbab7c0a4ebd5eb518aa16866d66e33a1a8357e1777"`
[INFO] [stderr]    Compiling rs2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/nodes.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, BufReader};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/nodes.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]   --> src/main.rs:24:6
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let node = nodes::register_node();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/nodes.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut file_in = match OpenOptions::new().
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `readLine` should have a snake case name
[INFO] [stderr]   --> src/nodes.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut readLine = String::new();
[INFO] [stderr]    |             ^^^^^^^^ help: convert the identifier to snake case: `read_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "1c3c4b76ec9afccd45450bbab7c0a4ebd5eb518aa16866d66e33a1a8357e1777"`
[INFO] running `"docker" "rm" "-f" "1c3c4b76ec9afccd45450bbab7c0a4ebd5eb518aa16866d66e33a1a8357e1777"`
[INFO] [stdout] 1c3c4b76ec9afccd45450bbab7c0a4ebd5eb518aa16866d66e33a1a8357e1777
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Rep2/RS_2_lab:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d6e7f445ee0aab75f52dbe8c536d85a4143b3155c5542ccaf3593c8114447472
[INFO] running `"docker" "start" "-a" "d6e7f445ee0aab75f52dbe8c536d85a4143b3155c5542ccaf3593c8114447472"`
[INFO] [stderr]    Compiling rs2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/nodes.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, BufReader};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/nodes.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]   --> src/main.rs:24:6
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let node = nodes::register_node();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/nodes.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut file_in = match OpenOptions::new().
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `readLine` should have a snake case name
[INFO] [stderr]   --> src/nodes.rs:30:10
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut readLine = String::new();
[INFO] [stderr]    |             ^^^^^^^^ help: convert the identifier to snake case: `read_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "d6e7f445ee0aab75f52dbe8c536d85a4143b3155c5542ccaf3593c8114447472"`
[INFO] running `"docker" "rm" "-f" "d6e7f445ee0aab75f52dbe8c536d85a4143b3155c5542ccaf3593c8114447472"`
[INFO] [stdout] d6e7f445ee0aab75f52dbe8c536d85a4143b3155c5542ccaf3593c8114447472
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Rep2/RS_2_lab:/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] e71f3068195b855ffb12c841f1642ad570fd1c8f3cd908323cca83b2daee13f1
[INFO] running `"docker" "start" "-a" "e71f3068195b855ffb12c841f1642ad570fd1c8f3cd908323cca83b2daee13f1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rs2-d86ea63dc2066280
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e71f3068195b855ffb12c841f1642ad570fd1c8f3cd908323cca83b2daee13f1"`
[INFO] running `"docker" "rm" "-f" "e71f3068195b855ffb12c841f1642ad570fd1c8f3cd908323cca83b2daee13f1"`
[INFO] [stdout] e71f3068195b855ffb12c841f1642ad570fd1c8f3cd908323cca83b2daee13f1