[INFO] crate err_prop 0.0.2 is already in cache
[INFO] extracting crate err_prop 0.0.2 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/err_prop/0.0.2
[INFO] extracting crate err_prop 0.0.2 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/err_prop/0.0.2
[INFO] validating manifest of err_prop-0.0.2 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of err_prop-0.0.2 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing err_prop-0.0.2
[INFO] finished frobbing err_prop-0.0.2
[INFO] frobbed toml for err_prop-0.0.2 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/err_prop/0.0.2/Cargo.toml
[INFO] started frobbing err_prop-0.0.2
[INFO] finished frobbing err_prop-0.0.2
[INFO] frobbed toml for err_prop-0.0.2 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/err_prop/0.0.2/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking err_prop-0.0.2 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-2/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/err_prop/0.0.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 51328267c2eff89a1af6503cf673b48f24be8edbfadbe1ccbce719a58320325f
[INFO] running `"docker" "start" "-a" "51328267c2eff89a1af6503cf673b48f24be8edbfadbe1ccbce719a58320325f"`
[INFO] [stderr]     Checking err_prop v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `rhs`
[INFO] [stderr]    --> src/lib.rs:133:18
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn rem(self, rhs: Self) -> Self::Output {
[INFO] [stderr]     |                  ^^^ help: consider prefixing with an underscore: `_rhs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/lib.rs:265:16
[INFO] [stderr]     |
[INFO] [stderr] 265 |     fn from<T>(t: T) -> Option<Self> {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src`
[INFO] [stderr]    --> src/lib.rs:273:23
[INFO] [stderr]     |
[INFO] [stderr] 273 |     fn from_str_radix(src: &str, radix: u32) -> Result<Self, ParseFloatError> {
[INFO] [stderr]     |                       ^^^ help: consider prefixing with an underscore: `_src`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `radix`
[INFO] [stderr]    --> src/lib.rs:273:34
[INFO] [stderr]     |
[INFO] [stderr] 273 |     fn from_str_radix(src: &str, radix: u32) -> Result<Self, ParseFloatError> {
[INFO] [stderr]     |                                  ^^^^^ help: consider prefixing with an underscore: `_radix`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:298:27
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn relative_eq(&self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon) -> bool {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `epsilon`
[INFO] [stderr]    --> src/lib.rs:298:41
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn relative_eq(&self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon) -> bool {
[INFO] [stderr]     |                                         ^^^^^^^ help: consider prefixing with an underscore: `_epsilon`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_relative`
[INFO] [stderr]    --> src/lib.rs:298:65
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn relative_eq(&self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon) -> bool {
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_max_relative`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:303:23
[INFO] [stderr]     |
[INFO] [stderr] 303 |     fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool {
[INFO] [stderr]     |                       ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `epsilon`
[INFO] [stderr]    --> src/lib.rs:303:37
[INFO] [stderr]     |
[INFO] [stderr] 303 |     fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool {
[INFO] [stderr]     |                                     ^^^^^^^ help: consider prefixing with an underscore: `_epsilon`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_ulps`
[INFO] [stderr]    --> src/lib.rs:303:61
[INFO] [stderr]     |
[INFO] [stderr] 303 |     fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool {
[INFO] [stderr]     |                                                             ^^^^^^^^ help: consider prefixing with an underscore: `_max_ulps`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/lib.rs:423:22
[INFO] [stderr]     |
[INFO] [stderr] 423 |     fn mul_add(self, a: Self, b: Self) -> Self {
[INFO] [stderr]     |                      ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lib.rs:423:31
[INFO] [stderr]     |
[INFO] [stderr] 423 |     fn mul_add(self, a: Self, b: Self) -> Self {
[INFO] [stderr]     |                               ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:433:19
[INFO] [stderr]     |
[INFO] [stderr] 433 |     fn powi(self, n: i32) -> Self {
[INFO] [stderr]     |                   ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:438:19
[INFO] [stderr]     |
[INFO] [stderr] 438 |     fn powf(self, n: Self) -> Self {
[INFO] [stderr]     |                   ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base`
[INFO] [stderr]    --> src/lib.rs:463:18
[INFO] [stderr]     |
[INFO] [stderr] 463 |     fn log(self, base: Self) -> Self {
[INFO] [stderr]     |                  ^^^^ help: consider prefixing with an underscore: `_base`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:478:18
[INFO] [stderr]     |
[INFO] [stderr] 478 |     fn max(self, other: Self) -> Self {
[INFO] [stderr]     |                  ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:483:18
[INFO] [stderr]     |
[INFO] [stderr] 483 |     fn min(self, other: Self) -> Self {
[INFO] [stderr]     |                  ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:488:22
[INFO] [stderr]     |
[INFO] [stderr] 488 |     fn abs_sub(self, other: Self) -> Self {
[INFO] [stderr]     |                      ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:498:20
[INFO] [stderr]     |
[INFO] [stderr] 498 |     fn hypot(self, other: Self) -> Self {
[INFO] [stderr]     |                    ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:533:20
[INFO] [stderr]     |
[INFO] [stderr] 533 |     fn atan2(self, other: Self) -> Self {
[INFO] [stderr]     |                    ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rhs`
[INFO] [stderr]    --> src/lib.rs:133:18
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn rem(self, rhs: Self) -> Self::Output {
[INFO] [stderr]     |                  ^^^ help: consider prefixing with an underscore: `_rhs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/lib.rs:265:16
[INFO] [stderr]     |
[INFO] [stderr] 265 |     fn from<T>(t: T) -> Option<Self> {
[INFO] [stderr]     |                ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src`
[INFO] [stderr]    --> src/lib.rs:273:23
[INFO] [stderr]     |
[INFO] [stderr] 273 |     fn from_str_radix(src: &str, radix: u32) -> Result<Self, ParseFloatError> {
[INFO] [stderr]     |                       ^^^ help: consider prefixing with an underscore: `_src`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `radix`
[INFO] [stderr]    --> src/lib.rs:273:34
[INFO] [stderr]     |
[INFO] [stderr] 273 |     fn from_str_radix(src: &str, radix: u32) -> Result<Self, ParseFloatError> {
[INFO] [stderr]     |                                  ^^^^^ help: consider prefixing with an underscore: `_radix`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:298:27
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn relative_eq(&self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon) -> bool {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `epsilon`
[INFO] [stderr]    --> src/lib.rs:298:41
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn relative_eq(&self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon) -> bool {
[INFO] [stderr]     |                                         ^^^^^^^ help: consider prefixing with an underscore: `_epsilon`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_relative`
[INFO] [stderr]    --> src/lib.rs:298:65
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn relative_eq(&self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon) -> bool {
[INFO] [stderr]     |                                                                 ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_max_relative`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:303:23
[INFO] [stderr]     |
[INFO] [stderr] 303 |     fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool {
[INFO] [stderr]     |                       ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `epsilon`
[INFO] [stderr]    --> src/lib.rs:303:37
[INFO] [stderr]     |
[INFO] [stderr] 303 |     fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool {
[INFO] [stderr]     |                                     ^^^^^^^ help: consider prefixing with an underscore: `_epsilon`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_ulps`
[INFO] [stderr]    --> src/lib.rs:303:61
[INFO] [stderr]     |
[INFO] [stderr] 303 |     fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool {
[INFO] [stderr]     |                                                             ^^^^^^^^ help: consider prefixing with an underscore: `_max_ulps`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/lib.rs:423:22
[INFO] [stderr]     |
[INFO] [stderr] 423 |     fn mul_add(self, a: Self, b: Self) -> Self {
[INFO] [stderr]     |                      ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lib.rs:423:31
[INFO] [stderr]     |
[INFO] [stderr] 423 |     fn mul_add(self, a: Self, b: Self) -> Self {
[INFO] [stderr]     |                               ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:433:19
[INFO] [stderr]     |
[INFO] [stderr] 433 |     fn powi(self, n: i32) -> Self {
[INFO] [stderr]     |                   ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:438:19
[INFO] [stderr]     |
[INFO] [stderr] 438 |     fn powf(self, n: Self) -> Self {
[INFO] [stderr]     |                   ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `base`
[INFO] [stderr]    --> src/lib.rs:463:18
[INFO] [stderr]     |
[INFO] [stderr] 463 |     fn log(self, base: Self) -> Self {
[INFO] [stderr]     |                  ^^^^ help: consider prefixing with an underscore: `_base`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:478:18
[INFO] [stderr]     |
[INFO] [stderr] 478 |     fn max(self, other: Self) -> Self {
[INFO] [stderr]     |                  ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:483:18
[INFO] [stderr]     |
[INFO] [stderr] 483 |     fn min(self, other: Self) -> Self {
[INFO] [stderr]     |                  ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:488:22
[INFO] [stderr]     |
[INFO] [stderr] 488 |     fn abs_sub(self, other: Self) -> Self {
[INFO] [stderr]     |                      ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:498:20
[INFO] [stderr]     |
[INFO] [stderr] 498 |     fn hypot(self, other: Self) -> Self {
[INFO] [stderr]     |                    ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:533:20
[INFO] [stderr]     |
[INFO] [stderr] 533 |     fn atan2(self, other: Self) -> Self {
[INFO] [stderr]     |                    ^^^^^ help: consider prefixing with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `det`
[INFO] [stderr]    --> src/lib.rs:656:13
[INFO] [stderr]     |
[INFO] [stderr] 656 |         let det = ::cgmath::Matrix2::new(a.x, a.y,
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_det`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "51328267c2eff89a1af6503cf673b48f24be8edbfadbe1ccbce719a58320325f"`
[INFO] running `"docker" "rm" "-f" "51328267c2eff89a1af6503cf673b48f24be8edbfadbe1ccbce719a58320325f"`
[INFO] [stdout] 51328267c2eff89a1af6503cf673b48f24be8edbfadbe1ccbce719a58320325f