[INFO] cloning repository https://github.com/Cancain/rust_udemy_continued
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cancain/rust_udemy_continued" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCancain%2Frust_udemy_continued", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCancain%2Frust_udemy_continued'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62353149af855790cb34d491f685a8be3e9c021c
[INFO] testing Cancain/rust_udemy_continued against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCancain%2Frust_udemy_continued" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Cancain/rust_udemy_continued on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Cancain/rust_udemy_continued
[INFO] finished tweaking git repo https://github.com/Cancain/rust_udemy_continued
[INFO] tweaked toml for git repo https://github.com/Cancain/rust_udemy_continued written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Cancain/rust_udemy_continued already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dd3a41e8e31ef34025a237035ffd8cfaa6e9ec3676cfb8f57255b4050676b83
[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" "8dd3a41e8e31ef34025a237035ffd8cfaa6e9ec3676cfb8f57255b4050676b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dd3a41e8e31ef34025a237035ffd8cfaa6e9ec3676cfb8f57255b4050676b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dd3a41e8e31ef34025a237035ffd8cfaa6e9ec3676cfb8f57255b4050676b83", kill_on_drop: false }`
[INFO] [stdout] 8dd3a41e8e31ef34025a237035ffd8cfaa6e9ec3676cfb8f57255b4050676b83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--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] 9ab4626c2347f2591fd4856ecfd9241cac875c7c40c645ffe437c519e9c8fe0c
[INFO] running `Command { std: "docker" "start" "-a" "9ab4626c2347f2591fd4856ecfd9241cac875c7c40c645ffe437c519e9c8fe0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling udemy_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_line`
[INFO] [stdout]   --> src/data_structures/structs.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let my_line = Line {start: p, end: p2};
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Color`
[INFO] [stdout]  --> src/data_structures/enumerations.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum 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: `enums`
[INFO] [stdout]  --> src/data_structures/enumerations.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn enums() {   
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/data_structures/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]  --> src/data_structures/structs.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Line {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structs`
[INFO] [stdout]   --> src/data_structures/structs.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn structs() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: union is never used: `IntOrFloat`
[INFO] [stdout]  --> src/data_structures/unions.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | union IntOrFloat {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `process_value`
[INFO] [stdout]  --> src/data_structures/unions.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn process_value(iof: IntOrFloat) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unions`
[INFO] [stdout]   --> src/data_structures/unions.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn unions() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `option`
[INFO] [stdout]  --> src/data_structures/option.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn option() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "9ab4626c2347f2591fd4856ecfd9241cac875c7c40c645ffe437c519e9c8fe0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ab4626c2347f2591fd4856ecfd9241cac875c7c40c645ffe437c519e9c8fe0c", kill_on_drop: false }`
[INFO] [stdout] 9ab4626c2347f2591fd4856ecfd9241cac875c7c40c645ffe437c519e9c8fe0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] d05c60772a9ee8d15713d3fcf16304e5449458eb3ae6fc0cd22f5a4894194a9d
[INFO] running `Command { std: "docker" "start" "-a" "d05c60772a9ee8d15713d3fcf16304e5449458eb3ae6fc0cd22f5a4894194a9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling udemy_tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_line`
[INFO] [stdout]   --> src/data_structures/structs.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let my_line = Line {start: p, end: p2};
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Color`
[INFO] [stdout]  --> src/data_structures/enumerations.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum 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: `enums`
[INFO] [stdout]  --> src/data_structures/enumerations.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn enums() {   
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/data_structures/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]  --> src/data_structures/structs.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Line {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structs`
[INFO] [stdout]   --> src/data_structures/structs.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn structs() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: union is never used: `IntOrFloat`
[INFO] [stdout]  --> src/data_structures/unions.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | union IntOrFloat {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `process_value`
[INFO] [stdout]  --> src/data_structures/unions.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn process_value(iof: IntOrFloat) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `unions`
[INFO] [stdout]   --> src/data_structures/unions.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn unions() {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `option`
[INFO] [stdout]  --> src/data_structures/option.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn option() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "d05c60772a9ee8d15713d3fcf16304e5449458eb3ae6fc0cd22f5a4894194a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d05c60772a9ee8d15713d3fcf16304e5449458eb3ae6fc0cd22f5a4894194a9d", kill_on_drop: false }`
[INFO] [stdout] d05c60772a9ee8d15713d3fcf16304e5449458eb3ae6fc0cd22f5a4894194a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43caf3c0bb5045f3f2c8aea21085351a3aa5b24aa89f6b06f3d962a7ff2e3ccf
[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" "43caf3c0bb5045f3f2c8aea21085351a3aa5b24aa89f6b06f3d962a7ff2e3ccf", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `my_line`
[INFO] [stderr]   --> src/data_structures/structs.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let my_line = Line {start: p, end: p2};
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]  --> src/data_structures/enumerations.rs:1:6
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum Color {
[INFO] [stderr]   |      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]  --> src/data_structures/enumerations.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn enums() {   
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/data_structures/structs.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Point {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]  --> src/data_structures/structs.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Line {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `structs`
[INFO] [stderr]   --> src/data_structures/structs.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn structs() {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: union is never used: `IntOrFloat`
[INFO] [stderr]  --> src/data_structures/unions.rs:1:7
[INFO] [stderr]   |
[INFO] [stderr] 1 | union IntOrFloat {
[INFO] [stderr]   |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process_value`
[INFO] [stderr]  --> src/data_structures/unions.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn process_value(iof: IntOrFloat) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unions`
[INFO] [stderr]   --> src/data_structures/unions.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn unions() {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option`
[INFO] [stderr]  --> src/data_structures/option.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn option() {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/udemy_tutorial-910154b5862e420d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "43caf3c0bb5045f3f2c8aea21085351a3aa5b24aa89f6b06f3d962a7ff2e3ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43caf3c0bb5045f3f2c8aea21085351a3aa5b24aa89f6b06f3d962a7ff2e3ccf", kill_on_drop: false }`
[INFO] [stdout] 43caf3c0bb5045f3f2c8aea21085351a3aa5b24aa89f6b06f3d962a7ff2e3ccf