[INFO] updating cached repository https://github.com/zjjfly/DiveIntoRust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 877c1bb705bbbb02f97fe5b709a24db219a45d2c [INFO] testing zjjfly/DiveIntoRust against beta-2019-09-28 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzjjfly%2FDiveIntoRust" "work/builds/worker-6/source"` [INFO] [stderr] Cloning into 'work/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zjjfly/DiveIntoRust on toolchain beta-2019-09-28 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/zjjfly/DiveIntoRust [INFO] finished tweaking git repo https://github.com/zjjfly/DiveIntoRust [INFO] tweaked toml for git repo https://github.com/zjjfly/DiveIntoRust written to work/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/zjjfly/DiveIntoRust already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] 56b0b1990ae633656deb6b97926bf734567afcd83c0f7e82d5c685bed23659fe [INFO] running `"docker" "start" "-a" "56b0b1990ae633656deb6b97926bf734567afcd83c0f7e82d5c685bed23659fe"` [INFO] [stderr] Compiling lazy_static v1.2.0 [INFO] [stderr] Compiling dive_into_format v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: function is never used: `add1` [INFO] [stderr] --> src/ch4/function.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | fn add1(t: (i32, i32)) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `add2` [INFO] [stderr] --> src/ch4/function.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | fn add2((x, y): (i32, i32)) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `cube` [INFO] [stderr] --> src/ch4/function.rs:61:1 [INFO] [stderr] | [INFO] [stderr] 61 | const fn cube(num: usize) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused attribute [INFO] [stderr] --> src/ch4/function.rs:60:1 [INFO] [stderr] | [INFO] [stderr] 60 | #[feature(const_fn)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_attributes)]` on by default [INFO] [stderr] [INFO] [stderr] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` [INFO] [stderr] --> src/ch4/function.rs:60:1 [INFO] [stderr] | [INFO] [stderr] 60 | #[feature(const_fn)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:15:13 [INFO] [stderr] | [INFO] [stderr] 15 | Err(err) => println!("environment variable {} not found!", "SHELL") [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.89s [INFO] running `"docker" "inspect" "56b0b1990ae633656deb6b97926bf734567afcd83c0f7e82d5c685bed23659fe"` [INFO] running `"docker" "rm" "-f" "56b0b1990ae633656deb6b97926bf734567afcd83c0f7e82d5c685bed23659fe"` [INFO] [stdout] 56b0b1990ae633656deb6b97926bf734567afcd83c0f7e82d5c685bed23659fe [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"` [INFO] [stdout] 34941f6b26180137f5be224b8de3d166d383df8fa7679f96fe42cf0c45b53991 [INFO] running `"docker" "start" "-a" "34941f6b26180137f5be224b8de3d166d383df8fa7679f96fe42cf0c45b53991"` [INFO] [stderr] Compiling dive_into_format v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:15:13 [INFO] [stderr] | [INFO] [stderr] 15 | Err(err) => println!("environment variable {} not found!", "SHELL") [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/ch4/function.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 54 | let x: i32 = diverges(); [INFO] [stderr] | ---------- any code following this expression is unreachable [INFO] [stderr] 55 | let y: String = diverges(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `func` [INFO] [stderr] --> src/ch4/function.rs:18:13 [INFO] [stderr] | [INFO] [stderr] 18 | let mut func = add1; [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_func` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `func` is assigned to, but never used [INFO] [stderr] --> src/ch4/function.rs:22:13 [INFO] [stderr] | [INFO] [stderr] 22 | let mut func = add1 as fn((i32, i32)) -> i32; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_func` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `func` is never read [INFO] [stderr] --> src/ch4/function.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | func = add2; [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: variable `func` is assigned to, but never used [INFO] [stderr] --> src/ch4/function.rs:25:13 [INFO] [stderr] | [INFO] [stderr] 25 | let mut func: fn((i32, i32)) -> i32 = add1; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_func` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `func` is never read [INFO] [stderr] --> src/ch4/function.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | func = add2; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/ch4/function.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let x: i32 = diverges(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/ch4/function.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | let y: String = diverges(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/ch4/function.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let mut func = add1; [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: unused attribute [INFO] [stderr] --> src/ch4/function.rs:60:1 [INFO] [stderr] | [INFO] [stderr] 60 | #[feature(const_fn)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_attributes)]` on by default [INFO] [stderr] [INFO] [stderr] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` [INFO] [stderr] --> src/ch4/function.rs:60:1 [INFO] [stderr] | [INFO] [stderr] 60 | #[feature(const_fn)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.98s [INFO] running `"docker" "inspect" "34941f6b26180137f5be224b8de3d166d383df8fa7679f96fe42cf0c45b53991"` [INFO] running `"docker" "rm" "-f" "34941f6b26180137f5be224b8de3d166d383df8fa7679f96fe42cf0c45b53991"` [INFO] [stdout] 34941f6b26180137f5be224b8de3d166d383df8fa7679f96fe42cf0c45b53991 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+beta-2019-09-28" "test" "--frozen"` [INFO] [stdout] f8918929083ce39e4ab6fd5ac7a83235d05d5f54816deb0d9e6ef5ebf91143c0 [INFO] running `"docker" "start" "-a" "f8918929083ce39e4ab6fd5ac7a83235d05d5f54816deb0d9e6ef5ebf91143c0"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.90s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/dive_into_format-f9095ba936f653b9 [INFO] [stdout] [INFO] [stdout] running 27 tests [INFO] [stdout] test ch2::complex_type::test_struct ... ok [INFO] [stdout] test ch2::complex_type::test_tuple ... ok [INFO] [stdout] test ch2::complex_type::test_tuple_struct ... ok [INFO] [stdout] test ch2::complex_type::test_type_recur ... ok [INFO] [stdout] test ch2::complex_type::test_enum ... ok [INFO] [stdout] test ch2::data_type::test_integer ... ok [INFO] [stdout] test ch2::variable::test_const_var ... ok [INFO] [stdout] test ch2::data_type::test_char ... ok [INFO] [stdout] test ch2::data_type::test_float ... ok [INFO] [stdout] test ch3::expression::test_arithmetic_exp ... ok [INFO] [stdout] test ch2::variable::test_type_alias ... ok [INFO] [stdout] test ch2::variable::test_variable_declare ... ok [INFO] [stdout] test ch2::data_type::test_overflow ... ok [INFO] [stdout] test ch2::data_type::test_type_convert ... ok [INFO] [stdout] test ch3::expression::test_for ... ok [INFO] [stdout] test ch2::variable::test_static_var ... ok [INFO] [stdout] test ch3::expression::test_assignment ... ok [INFO] [stdout] test ch3::expression::test_while ... ok [INFO] [stdout] test ch4::function::test_const_fn ... ok [INFO] [stdout] test ch4::function::test_type ... ok [INFO] [stdout] test ch4::function::test_recursive ... ok [INFO] [stdout] test ch4::function::test_invoke ... ok [INFO] [stdout] test ch4::function::test_inner ... ok [INFO] [stdout] test ch3::expression::test_if_else ... ok [INFO] [stdout] test ch4::function::test_diverge ... FAILED [INFO] [stdout] test ch1::format::test_format_string ... FAILED [INFO] [stdout] test ch3::expression::test_loop ... test ch3::expression::test_loop has been running for over 60 seconds [ERROR] error running command: no output for 300 seconds [INFO] running `"docker" "inspect" "f8918929083ce39e4ab6fd5ac7a83235d05d5f54816deb0d9e6ef5ebf91143c0"` [INFO] running `"docker" "rm" "-f" "f8918929083ce39e4ab6fd5ac7a83235d05d5f54816deb0d9e6ef5ebf91143c0"` [INFO] [stdout] f8918929083ce39e4ab6fd5ac7a83235d05d5f54816deb0d9e6ef5ebf91143c0