[INFO] crate peroxide 0.9.4 is already in cache
[INFO] extracting crate peroxide 0.9.4 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/peroxide/0.9.4
[INFO] extracting crate peroxide 0.9.4 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/peroxide/0.9.4
[INFO] validating manifest of peroxide-0.9.4 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of peroxide-0.9.4 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing peroxide-0.9.4
[INFO] finished frobbing peroxide-0.9.4
[INFO] frobbed toml for peroxide-0.9.4 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/peroxide/0.9.4/Cargo.toml
[INFO] started frobbing peroxide-0.9.4
[INFO] finished frobbing peroxide-0.9.4
[INFO] frobbed toml for peroxide-0.9.4 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/peroxide/0.9.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking peroxide-0.9.4 against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-4/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/peroxide/0.9.4:/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=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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a7b9bf2490c0d43bc6f80186676526b42f5392dee942ac305b02784437e92a51
[INFO] running `"docker" "start" "-a" "a7b9bf2490c0d43bc6f80186676526b42f5392dee942ac305b02784437e92a51"`
[INFO] [stderr]     Checking iter-read v0.1.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking serde-pickle v0.4.1
[INFO] [stderr]     Checking peroxide v0.9.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:450:60
[INFO] [stderr]     |
[INFO] [stderr] 450 |     pub fn write(&self, file_path: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:475:80
[INFO] [stderr]     |
[INFO] [stderr] 475 |     pub fn write_round(&self, file_path: &str, round: usize) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:490:91
[INFO] [stderr]     |
[INFO] [stderr] 490 |     pub fn write_with_header(&self, file_path: &str, header: Vec<&str>) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:507:111
[INFO] [stderr]     |
[INFO] [stderr] 507 |     pub fn write_with_header_round(&self, file_path: &str, header: Vec<&str>, round: usize) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:544:87
[INFO] [stderr]     |
[INFO] [stderr] 544 |     pub fn read(file_path: &str, header: bool, delimiter: char) -> Result<Matrix, Box<Error>> {
[INFO] [stderr]     |                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::consts::E`
[INFO] [stderr]  --> src/structure/dual.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::f64::consts::E;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util/pickle.rs:22:29
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let mut writer: Box<Write>;
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util/pickle.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut writer: Box<Write>;
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/util/writer.rs:109:29
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let mut writer: Box<Write>;
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:450:60
[INFO] [stderr]     |
[INFO] [stderr] 450 |     pub fn write(&self, file_path: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:475:80
[INFO] [stderr]     |
[INFO] [stderr] 475 |     pub fn write_round(&self, file_path: &str, round: usize) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:490:91
[INFO] [stderr]     |
[INFO] [stderr] 490 |     pub fn write_with_header(&self, file_path: &str, header: Vec<&str>) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:507:111
[INFO] [stderr]     |
[INFO] [stderr] 507 |     pub fn write_with_header_round(&self, file_path: &str, header: Vec<&str>, round: usize) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/structure/matrix.rs:544:87
[INFO] [stderr]     |
[INFO] [stderr] 544 |     pub fn read(file_path: &str, header: bool, delimiter: char) -> Result<Matrix, Box<Error>> {
[INFO] [stderr]     |                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::consts::E`
[INFO] [stderr]  --> src/structure/dual.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::f64::consts::E;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util/pickle.rs:22:29
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let mut writer: Box<Write>;
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util/pickle.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut writer: Box<Write>;
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/util/writer.rs:109:29
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let mut writer: Box<Write>;
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/util/writer.rs:139:21
[INFO] [stderr]     |
[INFO] [stderr] 139 |                     mat.write_pickle(&mut writer);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/util/writer.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |                     vec.write_pickle(&mut writer);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/util/writer.rs:139:21
[INFO] [stderr]     |
[INFO] [stderr] 139 |                     mat.write_pickle(&mut writer);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/util/writer.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |                     vec.write_pickle(&mut writer);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Mul`
[INFO] [stderr]  --> src/bin/arnoldi.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ops::Mul;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]  --> src/bin/arnoldi.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tau` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut tau = 0f64;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `gamma` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut gamma = 0f64;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sigma` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut sigma = 0f64;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tau` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         tau = 0f64;
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Mul`
[INFO] [stderr]  --> src/bin/arnoldi.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ops::Mul;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]  --> src/bin/arnoldi.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tau` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut tau = 0f64;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `gamma` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut gamma = 0f64;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sigma` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut sigma = 0f64;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `tau` is never read
[INFO] [stderr]   --> src/bin/arnoldi.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         tau = 0f64;
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.02s
[INFO] running `"docker" "inspect" "a7b9bf2490c0d43bc6f80186676526b42f5392dee942ac305b02784437e92a51"`
[INFO] running `"docker" "rm" "-f" "a7b9bf2490c0d43bc6f80186676526b42f5392dee942ac305b02784437e92a51"`
[INFO] [stdout] a7b9bf2490c0d43bc6f80186676526b42f5392dee942ac305b02784437e92a51