[INFO] updating cached repository Fredilein/grit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Fredilein/grit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Fredilein/grit" "work/ex/beta-1.38-1/sources/1.37.0/gh/Fredilein/grit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Fredilein/grit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Fredilein/grit" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fredilein/grit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fredilein/grit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d2a3e0d222989801223085a355d89eb2b6b515e3
[INFO] sha for GitHub repo Fredilein/grit: d2a3e0d222989801223085a355d89eb2b6b515e3
[INFO] validating manifest of Fredilein/grit on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Fredilein/grit on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Fredilein/grit
[INFO] finished frobbing Fredilein/grit
[INFO] frobbed toml for Fredilein/grit written to work/ex/beta-1.38-1/sources/1.37.0/gh/Fredilein/grit/Cargo.toml
[INFO] started frobbing Fredilein/grit
[INFO] finished frobbing Fredilein/grit
[INFO] frobbed toml for Fredilein/grit written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fredilein/grit/Cargo.toml
[INFO] crate Fredilein/grit already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Fredilein/grit against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Fredilein/grit:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 93fec846aa8c83c9bb4dbd8c122ae032200a3392ade57ff8f05e75c05dc6b992
[INFO] running `"docker" "start" "-a" "93fec846aa8c83c9bb4dbd8c122ae032200a3392ade57ff8f05e75c05dc6b992"`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling grit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ini::Ini`
[INFO] [stderr]  --> src/repo.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ini::Ini;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `type_end` is assigned to, but never used
[INFO] [stderr]   --> src/object.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut type_end = 0;                       // tut: x
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_type_end` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size_end` is never read
[INFO] [stderr]   --> src/object.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut size_end = 0;                       // tut: y
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size` is never read
[INFO] [stderr]   --> src/object.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut size = 0;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `type_end` is never read
[INFO] [stderr]   --> src/object.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |             type_end = i;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]   --> src/object.rs:75:28
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn object_write<T: Object>(object: T, actually_write: bool){
[INFO] [stderr]    |                            ^^^^^^ help: consider prefixing with an underscore: `_object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `actually_write`
[INFO] [stderr]   --> src/object.rs:75:39
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn object_write<T: Object>(object: T, actually_write: bool){
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_actually_write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]   --> src/object.rs:79:20
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn object_find<'a>(repo: &GitRepository, name: &'a str) -> &'a str {
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_repo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/repo.rs:30:42
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn repo_create(repo :&GitRepository, path: &String) {
[INFO] [stderr]    |                                          ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GitBlob`
[INFO] [stderr]   --> src/object.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct GitBlob {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `object_write`
[INFO] [stderr]   --> src/object.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn object_write<T: Object>(object: T, actually_write: bool){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `object_find`
[INFO] [stderr]   --> src/object.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn object_find<'a>(repo: &GitRepository, name: &'a str) -> &'a str {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.43s
[INFO] running `"docker" "inspect" "93fec846aa8c83c9bb4dbd8c122ae032200a3392ade57ff8f05e75c05dc6b992"`
[INFO] running `"docker" "rm" "-f" "93fec846aa8c83c9bb4dbd8c122ae032200a3392ade57ff8f05e75c05dc6b992"`
[INFO] [stdout] 93fec846aa8c83c9bb4dbd8c122ae032200a3392ade57ff8f05e75c05dc6b992
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Fredilein/grit:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] bb70c68ba4eda6a02537e31574ce7782f41e20ccbc3d528b4d465c98a37642ec
[INFO] running `"docker" "start" "-a" "bb70c68ba4eda6a02537e31574ce7782f41e20ccbc3d528b4d465c98a37642ec"`
[INFO] [stderr]    Compiling grit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ini::Ini`
[INFO] [stderr]  --> src/repo.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ini::Ini;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `type_end` is assigned to, but never used
[INFO] [stderr]   --> src/object.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut type_end = 0;                       // tut: x
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_type_end` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size_end` is never read
[INFO] [stderr]   --> src/object.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut size_end = 0;                       // tut: y
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size` is never read
[INFO] [stderr]   --> src/object.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let mut size = 0;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `type_end` is never read
[INFO] [stderr]   --> src/object.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |             type_end = i;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]   --> src/object.rs:75:28
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn object_write<T: Object>(object: T, actually_write: bool){
[INFO] [stderr]    |                            ^^^^^^ help: consider prefixing with an underscore: `_object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `actually_write`
[INFO] [stderr]   --> src/object.rs:75:39
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn object_write<T: Object>(object: T, actually_write: bool){
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_actually_write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]   --> src/object.rs:79:20
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn object_find<'a>(repo: &GitRepository, name: &'a str) -> &'a str {
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_repo`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/repo.rs:30:42
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn repo_create(repo :&GitRepository, path: &String) {
[INFO] [stderr]    |                                          ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `GitBlob`
[INFO] [stderr]   --> src/object.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct GitBlob {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `object_write`
[INFO] [stderr]   --> src/object.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn object_write<T: Object>(object: T, actually_write: bool){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `object_find`
[INFO] [stderr]   --> src/object.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn object_find<'a>(repo: &GitRepository, name: &'a str) -> &'a str {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "bb70c68ba4eda6a02537e31574ce7782f41e20ccbc3d528b4d465c98a37642ec"`
[INFO] running `"docker" "rm" "-f" "bb70c68ba4eda6a02537e31574ce7782f41e20ccbc3d528b4d465c98a37642ec"`
[INFO] [stdout] bb70c68ba4eda6a02537e31574ce7782f41e20ccbc3d528b4d465c98a37642ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Fredilein/grit:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a65ad100c00fb39cc20f64cbecd1438453f6fad083bf03d31a7aa996772b1153
[INFO] running `"docker" "start" "-a" "a65ad100c00fb39cc20f64cbecd1438453f6fad083bf03d31a7aa996772b1153"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/grit-3687a7d430acb7f2
[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" "a65ad100c00fb39cc20f64cbecd1438453f6fad083bf03d31a7aa996772b1153"`
[INFO] running `"docker" "rm" "-f" "a65ad100c00fb39cc20f64cbecd1438453f6fad083bf03d31a7aa996772b1153"`
[INFO] [stdout] a65ad100c00fb39cc20f64cbecd1438453f6fad083bf03d31a7aa996772b1153