[INFO] cloning repository https://github.com/cp-shen/RT_in_one_weekend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cp-shen/RT_in_one_weekend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcp-shen%2FRT_in_one_weekend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcp-shen%2FRT_in_one_weekend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c4c56e7aa6f909e2dc19f1c037f81e5841a49ba
[INFO] testing cp-shen/RT_in_one_weekend against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcp-shen%2FRT_in_one_weekend" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cp-shen/RT_in_one_weekend on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cp-shen/RT_in_one_weekend
[INFO] finished tweaking git repo https://github.com/cp-shen/RT_in_one_weekend
[INFO] tweaked toml for git repo https://github.com/cp-shen/RT_in_one_weekend written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cp-shen/RT_in_one_weekend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e16fad91847bcfc7fdf841704ef33ab845a700228b87a22c9da549c94ca44d3a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e16fad91847bcfc7fdf841704ef33ab845a700228b87a22c9da549c94ca44d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e16fad91847bcfc7fdf841704ef33ab845a700228b87a22c9da549c94ca44d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16fad91847bcfc7fdf841704ef33ab845a700228b87a22c9da549c94ca44d3a", kill_on_drop: false }`
[INFO] [stdout] e16fad91847bcfc7fdf841704ef33ab845a700228b87a22c9da549c94ca44d3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edd141e78fab2b2b01b21e2a36dd89352672fcfbe751736ea0dbbf69c5ba00f6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "edd141e78fab2b2b01b21e2a36dd89352672fcfbe751736ea0dbbf69c5ba00f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling image v0.23.9
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling rt_in_one_weekend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/material.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Ray, Color)> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rec`
[INFO] [stdout]   --> src/material.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Ray, Color)> {
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_rec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `albedo`
[INFO] [stdout]   --> src/material.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     albedo: Color,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `random_in_unit_shpere`
[INFO] [stdout]   --> src/random.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn random_in_unit_shpere() -> Vec3 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/vec3.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn x(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `z`
[INFO] [stdout]   --> src/vec3.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn z(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]   --> src/vec3.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn cross(&self, other: Self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_normal`
[INFO] [stdout]   --> src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn ray_color_normal(r: &Ray, world: &dyn Hittable) -> Color {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.21s
[INFO] running `Command { std: "docker" "inspect" "edd141e78fab2b2b01b21e2a36dd89352672fcfbe751736ea0dbbf69c5ba00f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edd141e78fab2b2b01b21e2a36dd89352672fcfbe751736ea0dbbf69c5ba00f6", kill_on_drop: false }`
[INFO] [stdout] edd141e78fab2b2b01b21e2a36dd89352672fcfbe751736ea0dbbf69c5ba00f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 09ac52b732f05d5e5786b3dc7b8f531a9e99478e035301e33cdc1ab9f7469c34
[INFO] running `Command { std: "docker" "start" "-a" "09ac52b732f05d5e5786b3dc7b8f531a9e99478e035301e33cdc1ab9f7469c34", kill_on_drop: false }`
[INFO] [stderr]    Compiling rt_in_one_weekend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/material.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Ray, Color)> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rec`
[INFO] [stdout]   --> src/material.rs:16:35
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Ray, Color)> {
[INFO] [stdout]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_rec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `albedo`
[INFO] [stdout]   --> src/material.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     albedo: Color,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `random_in_unit_shpere`
[INFO] [stdout]   --> src/random.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn random_in_unit_shpere() -> Vec3 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/vec3.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn x(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `z`
[INFO] [stdout]   --> src/vec3.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn z(&self) -> f32 {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]   --> src/vec3.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn cross(&self, other: Self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ray_color_normal`
[INFO] [stdout]   --> src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn ray_color_normal(r: &Ray, world: &dyn Hittable) -> Color {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `Command { std: "docker" "inspect" "09ac52b732f05d5e5786b3dc7b8f531a9e99478e035301e33cdc1ab9f7469c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ac52b732f05d5e5786b3dc7b8f531a9e99478e035301e33cdc1ab9f7469c34", kill_on_drop: false }`
[INFO] [stdout] 09ac52b732f05d5e5786b3dc7b8f531a9e99478e035301e33cdc1ab9f7469c34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68199430b1ce0d8f10d873dfab2f243cc47fea3f06f988c0b4e2efd81e706484
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "68199430b1ce0d8f10d873dfab2f243cc47fea3f06f988c0b4e2efd81e706484", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `r_in`
[INFO] [stderr]   --> src/material.rs:16:23
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Ray, Color)> {
[INFO] [stderr]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rec`
[INFO] [stderr]   --> src/material.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn scatter(&self, r_in: &Ray, rec: &HitRecord) -> Option<(Ray, Color)> {
[INFO] [stderr]    |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_rec`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `albedo`
[INFO] [stderr]   --> src/material.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     albedo: Color,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_in_unit_shpere`
[INFO] [stderr]   --> src/random.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn random_in_unit_shpere() -> Vec3 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `x`
[INFO] [stderr]   --> src/vec3.rs:63:12
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn x(&self) -> f32 {
[INFO] [stderr]    |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `z`
[INFO] [stderr]   --> src/vec3.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn z(&self) -> f32 {
[INFO] [stderr]    |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cross`
[INFO] [stderr]   --> src/vec3.rs:87:12
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn cross(&self, other: Self) -> Vec3 {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ray_color_normal`
[INFO] [stderr]   --> src/main.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn ray_color_normal(r: &Ray, world: &dyn Hittable) -> Color {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rt_in_one_weekend-b0fd299073870256
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test material::tests::test ... ok
[INFO] [stdout] test image_writer::tests::test_simple_ppm ... FAILED
[INFO] [stdout] test image_writer::tests::test_gradient ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- image_writer::tests::test_simple_ppm stdout ----
[INFO] [stdout] thread 'image_writer::tests::test_simple_ppm' panicked at 'fail to open file images/test_simple.ppm: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/image_writer.rs:58:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55cc03cce040 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x55cc03cce040 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55cc03cce040 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x55cc03cce040 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x55cc03cf06cc - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x55cc03b824d6 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x55cc03cc871d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x55cc03cd055d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x55cc03cd055d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x55cc03cd055d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x55cc03cd01b2 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x55cc03cd0c41 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x55cc03cd07e9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   13:     0x55cc03cce4cc - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x55cc03cd07a9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   15:     0x55cc03ceefa1 - core::panicking::panic_fmt::h5b17d4a0e853d0f5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/panicking.rs:85
[INFO] [stdout]   16:     0x55cc03ceedc3 - core::option::expect_none_failed::hd08bf36cae411fff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/option.rs:1234
[INFO] [stdout]   17:     0x55cc03b801d9 - core::result::Result<T,E>::expect::hb2427d79b6159c74
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/result.rs:933
[INFO] [stdout]   18:     0x55cc03b7b086 - rt_in_one_weekend::image_writer::write_ppm::hd623a65acd904213
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image_writer.rs:53
[INFO] [stdout]   19:     0x55cc03b7ebe9 - rt_in_one_weekend::image_writer::tests::test_simple_ppm::hf03ee1c4a2cbc148
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image_writer.rs:119
[INFO] [stdout]   20:     0x55cc03b7e85a - rt_in_one_weekend::image_writer::tests::test_simple_ppm::{{closure}}::h60ae2efd7287327f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image_writer.rs:107
[INFO] [stdout]   21:     0x55cc03b7bf9e - core::ops::function::FnOnce::call_once::h3831e0fcf9acd29c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   22:     0x55cc03ba92c3 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   23:     0x55cc03ba92c3 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   24:     0x55cc03ba77c8 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   25:     0x55cc03ba77c8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   26:     0x55cc03ba77c8 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   27:     0x55cc03ba77c8 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   28:     0x55cc03ba77c8 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   29:     0x55cc03ba77c8 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   30:     0x55cc03ba77c8 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   31:     0x55cc03b81856 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   32:     0x55cc03b869c5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   33:     0x55cc03b869c5 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   34:     0x55cc03b869c5 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   35:     0x55cc03b869c5 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   36:     0x55cc03b869c5 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   37:     0x55cc03b869c5 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   38:     0x55cc03b869c5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   39:     0x55cc03cd704a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   40:     0x55cc03cd704a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   41:     0x55cc03cd704a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   42:     0x7f4303b29609 - start_thread
[INFO] [stdout]   43:     0x7f4303db4103 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- image_writer::tests::test_gradient stdout ----
[INFO] [stdout] thread 'image_writer::tests::test_gradient' panicked at 'called `Result::unwrap()` on an `Err` value: IoError(Os { code: 2, kind: NotFound, message: "No such file or directory" })', src/image_writer.rs:34:20
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55cc03cce040 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x55cc03cce040 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55cc03cce040 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x55cc03cce040 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x55cc03cf06cc - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stdout]    5:     0x55cc03b824d6 - std::io::Write::write_fmt::h68b2e5fe4c78e61a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stdout]    6:     0x55cc03cc871d - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::he9ebec865e28165c
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/impls.rs:179
[INFO] [stdout]    7:     0x55cc03cd055d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x55cc03cd055d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x55cc03cd055d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stdout]   10:     0x55cc03cd01b2 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:224
[INFO] [stdout]   11:     0x55cc03cd0c41 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stdout]   12:     0x55cc03cd07e9 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stdout]   13:     0x55cc03cce4cc - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x55cc03cd07a9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stdout]   15:     0x55cc03ceefa1 - core::panicking::panic_fmt::h5b17d4a0e853d0f5
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/panicking.rs:85
[INFO] [stdout]   16:     0x55cc03ceedc3 - core::option::expect_none_failed::hd08bf36cae411fff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/option.rs:1234
[INFO] [stdout]   17:     0x55cc03b802a7 - core::result::Result<T,E>::unwrap::hd4012d06c13ad6c1
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/result.rs:973
[INFO] [stdout]   18:     0x55cc03b7a99a - rt_in_one_weekend::image_writer::write_png::h13536a6bb980b73a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image_writer.rs:34
[INFO] [stdout]   19:     0x55cc03b7f0d5 - rt_in_one_weekend::image_writer::tests::test_gradient::h9720dd17bb66135b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image_writer.rs:144
[INFO] [stdout]   20:     0x55cc03b7ecda - rt_in_one_weekend::image_writer::tests::test_gradient::{{closure}}::hd1fb0b2509a5bb3c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image_writer.rs:129
[INFO] [stdout]   21:     0x55cc03b7c00e - core::ops::function::FnOnce::call_once::h8502fd33faca737f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   22:     0x55cc03ba92c3 - core::ops::function::FnOnce::call_once::hcd3fa2f0696c1015
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   23:     0x55cc03ba92c3 - test::__rust_begin_short_backtrace::h113f97c5e5ab7d4a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:516
[INFO] [stdout]   24:     0x55cc03ba77c8 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h01fd09163cae2442
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   25:     0x55cc03ba77c8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0da6b685ae74a04a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   26:     0x55cc03ba77c8 - std::panicking::try::do_call::h564a32f132f2c264
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   27:     0x55cc03ba77c8 - std::panicking::try::h477cfd4b06a2e64a
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   28:     0x55cc03ba77c8 - std::panic::catch_unwind::hdb5abc6d008c399d
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   29:     0x55cc03ba77c8 - test::run_test_in_process::he8ff7dec91b275be
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:543
[INFO] [stdout]   30:     0x55cc03ba77c8 - test::run_test::run_test_inner::{{closure}}::hfd9f49e4a4ff9162
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/test/src/lib.rs:449
[INFO] [stdout]   31:     0x55cc03b81856 - std::sys_common::backtrace::__rust_begin_short_backtrace::hee6d60d5bb466aff
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   32:     0x55cc03b869c5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h988cecdf9ebbaf00
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:464
[INFO] [stdout]   33:     0x55cc03b869c5 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330cf727ec126982
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:308
[INFO] [stdout]   34:     0x55cc03b869c5 - std::panicking::try::do_call::h6cd25078f4a5ea13
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stdout]   35:     0x55cc03b869c5 - std::panicking::try::h84b1d49961301705
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stdout]   36:     0x55cc03b869c5 - std::panic::catch_unwind::h6145324593b3654b
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stdout]   37:     0x55cc03b869c5 - std::thread::Builder::spawn_unchecked::{{closure}}::ha41e72e8024f9192
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/thread/mod.rs:463
[INFO] [stdout]   38:     0x55cc03b869c5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hfb5034cf1f1be223
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stdout]   39:     0x55cc03cd704a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   40:     0x55cc03cd704a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   41:     0x55cc03cd704a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stdout]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   42:     0x7f4303b29609 - start_thread
[INFO] [stdout]   43:     0x7f4303db4103 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     image_writer::tests::test_gradient
[INFO] [stdout]     image_writer::tests::test_simple_ppm
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin rt_in_one_weekend'
[INFO] running `Command { std: "docker" "inspect" "68199430b1ce0d8f10d873dfab2f243cc47fea3f06f988c0b4e2efd81e706484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68199430b1ce0d8f10d873dfab2f243cc47fea3f06f988c0b4e2efd81e706484", kill_on_drop: false }`
[INFO] [stdout] 68199430b1ce0d8f10d873dfab2f243cc47fea3f06f988c0b4e2efd81e706484
