[INFO] crate release 0.8.1 is already in cache
[INFO] testing release-0.8.1 against 1.38.0 for beta-1.39-1
[INFO] extracting crate release 0.8.1 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate release 0.8.1 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate release 0.8.1
[INFO] finished tweaking crates.io crate release 0.8.1
[INFO] tweaked toml for crates.io crate release 0.8.1 written to work/builds/worker-3/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 2d838b16c409cf532a07fe4ee418585bcd8b204a34fe918cec60365125acaf04
[INFO] running `"docker" "start" "-a" "2d838b16c409cf532a07fe4ee418585bcd8b204a34fe918cec60365125acaf04"`
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.12
[INFO] [stderr]    Compiling curl-sys v0.4.23
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling release v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::env::current_dir`
[INFO] [stderr]  --> src/tags.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::env::current_dir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `E`
[INFO] [stderr]   --> src/main.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |             Err(E) => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_E`
[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/tags.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let mut versions = self.get_tags().versions();
[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 does not need to be mutable
[INFO] [stderr]   --> src/tags.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let mut val;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tags.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let mut obj;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `iter`
[INFO] [stderr]    --> src/tags.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn iter(&self) -> Iter<Version>{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 release.make_release(vtype);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> src/main.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |             Err(E) => {
[INFO] [stderr]    |                 ^ help: convert the identifier to snake case: `e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> src/tags.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Err(E) => Err(E)
[INFO] [stderr]    |                 ^ help: convert the identifier to snake case: `e`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.77s
[INFO] running `"docker" "inspect" "2d838b16c409cf532a07fe4ee418585bcd8b204a34fe918cec60365125acaf04"`
[INFO] running `"docker" "rm" "-f" "2d838b16c409cf532a07fe4ee418585bcd8b204a34fe918cec60365125acaf04"`
[INFO] [stdout] 2d838b16c409cf532a07fe4ee418585bcd8b204a34fe918cec60365125acaf04
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 26fdcd963c7a359691cafcd82d650fdef114d47763ee2f06072d44fe147eda36
[INFO] running `"docker" "start" "-a" "26fdcd963c7a359691cafcd82d650fdef114d47763ee2f06072d44fe147eda36"`
[INFO] [stderr]    Compiling release v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::env::current_dir`
[INFO] [stderr]  --> src/tags.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::env::current_dir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `E`
[INFO] [stderr]   --> src/main.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |             Err(E) => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_E`
[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/tags.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let mut versions = self.get_tags().versions();
[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 does not need to be mutable
[INFO] [stderr]   --> src/tags.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let mut val;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tags.rs:97:13
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let mut obj;
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `iter`
[INFO] [stderr]    --> src/tags.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn iter(&self) -> Iter<Version>{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 release.make_release(vtype);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> src/main.rs:27:17
[INFO] [stderr]    |
[INFO] [stderr] 27 |             Err(E) => {
[INFO] [stderr]    |                 ^ help: convert the identifier to snake case: `e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name
[INFO] [stderr]   --> src/tags.rs:79:17
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Err(E) => Err(E)
[INFO] [stderr]    |                 ^ help: convert the identifier to snake case: `e`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "26fdcd963c7a359691cafcd82d650fdef114d47763ee2f06072d44fe147eda36"`
[INFO] running `"docker" "rm" "-f" "26fdcd963c7a359691cafcd82d650fdef114d47763ee2f06072d44fe147eda36"`
[INFO] [stdout] 26fdcd963c7a359691cafcd82d650fdef114d47763ee2f06072d44fe147eda36
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 4a64e08793acfa5403915a35870e8fb3fac784015e64ecacd806a6c314c2b91e
[INFO] running `"docker" "start" "-a" "4a64e08793acfa5403915a35870e8fb3fac784015e64ecacd806a6c314c2b91e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/release-a90ca32877c49a4e
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test version::tests::test_version_debug_string ... ok
[INFO] [stdout] test version::tests::test_increment_version ... ok
[INFO] [stdout] test version::tests::test_version_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4a64e08793acfa5403915a35870e8fb3fac784015e64ecacd806a6c314c2b91e"`
[INFO] running `"docker" "rm" "-f" "4a64e08793acfa5403915a35870e8fb3fac784015e64ecacd806a6c314c2b91e"`
[INFO] [stdout] 4a64e08793acfa5403915a35870e8fb3fac784015e64ecacd806a6c314c2b91e