[INFO] fetching crate ImtiazGermain 0.1.2...
[INFO] checking ImtiazGermain-0.1.2 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate ImtiazGermain 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ImtiazGermain 0.1.2 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ImtiazGermain 0.1.2
[INFO] finished tweaking crates.io crate ImtiazGermain 0.1.2
[INFO] tweaked toml for crates.io crate ImtiazGermain 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 583bf248e4e2de8d465e7f799a671824a957eafb19c4115edeec590e41cac5f2
[INFO] running `Command { std: "docker" "start" "-a" "583bf248e4e2de8d465e7f799a671824a957eafb19c4115edeec590e41cac5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "583bf248e4e2de8d465e7f799a671824a957eafb19c4115edeec590e41cac5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "583bf248e4e2de8d465e7f799a671824a957eafb19c4115edeec590e41cac5f2", kill_on_drop: false }`
[INFO] [stdout] 583bf248e4e2de8d465e7f799a671824a957eafb19c4115edeec590e41cac5f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a07e313ef51dc6355decf7f09e3ef82a6e50940e8cdc420dd3bc204c997ddd8
[INFO] running `Command { std: "docker" "start" "-a" "9a07e313ef51dc6355decf7f09e3ef82a6e50940e8cdc420dd3bc204c997ddd8", kill_on_drop: false }`
[INFO] [stderr]     Checking ImtiazGermain v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `workspace`
[INFO] [stdout]   --> src/lib.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(feature = "workspace")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `workspace` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `default`
[INFO] [stdout]   --> src/lib.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "default")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `default` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `isgermainprime`
[INFO] [stdout]   --> src/lib.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[cfg(any(feature = "isgermainprime", feature="isimtiazgermainprime"))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `isgermainprime` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `isimtiazgermainprime`
[INFO] [stdout]   --> src/lib.rs:22:39
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[cfg(any(feature = "isgermainprime", feature="isimtiazgermainprime"))]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `isimtiazgermainprime` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isgermainprime.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isimtiazgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isimtiazgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isimtiazgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isimtiazgermainprime.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `ImtiazGermain` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `imtiaz_germain`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isgermainprime.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isimtiazgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isimtiazgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isimtiazgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isimtiazgermainprime.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `ChildStdout` in the current scope
[INFO] [stdout]   --> tests/integration_tests.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 22 |     child.stdout.take().unwrap().read_to_string(&mut output).unwrap();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/b286722878e18db29a7fbe672be7c4d3b02e8e4d/library/std/src/io/mod.rs:908:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `ChildStdout` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Read` which provides `read_to_string` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::Read;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read_to_end` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 22 |     child.stdout.take().unwrap().read_to_end(&mut output).unwrap();
[INFO] [stdout]    |                                  ~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ImtiazGermain` (test "integration_tests") due to 2 previous errors
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9a07e313ef51dc6355decf7f09e3ef82a6e50940e8cdc420dd3bc204c997ddd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a07e313ef51dc6355decf7f09e3ef82a6e50940e8cdc420dd3bc204c997ddd8", kill_on_drop: false }`
[INFO] [stdout] 9a07e313ef51dc6355decf7f09e3ef82a6e50940e8cdc420dd3bc204c997ddd8
[INFO] checking ImtiazGermain-0.1.2 against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655
[INFO] extracting crate ImtiazGermain 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate ImtiazGermain 0.1.2 on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ImtiazGermain 0.1.2
[INFO] finished tweaking crates.io crate ImtiazGermain 0.1.2
[INFO] tweaked toml for crates.io crate ImtiazGermain 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a086c683ae697ac79766090a3763f9c71d723c404dd37b33aca29b4fd0500aa6
[INFO] running `Command { std: "docker" "start" "-a" "a086c683ae697ac79766090a3763f9c71d723c404dd37b33aca29b4fd0500aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a086c683ae697ac79766090a3763f9c71d723c404dd37b33aca29b4fd0500aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a086c683ae697ac79766090a3763f9c71d723c404dd37b33aca29b4fd0500aa6", kill_on_drop: false }`
[INFO] [stdout] a086c683ae697ac79766090a3763f9c71d723c404dd37b33aca29b4fd0500aa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19f53abf28fc8e1bd7b8c504205050b8356e0b865c133578847ed0dc34c4b8c1
[INFO] running `Command { std: "docker" "start" "-a" "19f53abf28fc8e1bd7b8c504205050b8356e0b865c133578847ed0dc34c4b8c1", kill_on_drop: false }`
[INFO] [stderr]     Checking ImtiazGermain v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `isgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isgermainprime.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isimtiazgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isimtiazgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isimtiazgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isimtiazgermainprime.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `workspace`
[INFO] [stdout]   --> src/lib.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(feature = "workspace")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `workspace` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `default`
[INFO] [stdout]   --> src/lib.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[cfg(feature = "default")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `default` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `isgermainprime`
[INFO] [stdout]   --> src/lib.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[cfg(any(feature = "isgermainprime", feature="isimtiazgermainprime"))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `isgermainprime` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `isimtiazgermainprime`
[INFO] [stdout]   --> src/lib.rs:22:39
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[cfg(any(feature = "isgermainprime", feature="isimtiazgermainprime"))]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `isimtiazgermainprime` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isgermainprime.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `isimtiazgermainprime` is never used
[INFO] [stdout]  --> src/primecheck/isimtiazgermainprime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn isimtiazgermainprime(n: u64) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime` is never used
[INFO] [stdout]   --> src/primecheck/isimtiazgermainprime.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn is_prime(n: u64) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `ImtiazGermain` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `imtiaz_germain`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `ChildStdout` in the current scope
[INFO] [stdout]   --> tests/integration_tests.rs:22:34
[INFO] [stdout]    |
[INFO] [stdout] 22 |     child.stdout.take().unwrap().read_to_string(&mut output).unwrap();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/6a5749073f2ebf59d7740d30e50a932a85756ee7/library/std/src/io/mod.rs:908:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method is available for `ChildStdout` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Read` which provides `read_to_string` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::io::Read;
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `read_to_end` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 22 |     child.stdout.take().unwrap().read_to_end(&mut output).unwrap();
[INFO] [stdout]    |                                  ~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ImtiazGermain` (test "integration_tests") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "19f53abf28fc8e1bd7b8c504205050b8356e0b865c133578847ed0dc34c4b8c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f53abf28fc8e1bd7b8c504205050b8356e0b865c133578847ed0dc34c4b8c1", kill_on_drop: false }`
[INFO] [stdout] 19f53abf28fc8e1bd7b8c504205050b8356e0b865c133578847ed0dc34c4b8c1
