[INFO] cloning repository https://github.com/davesabra/Mandelbrot-set-graphic-by-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davesabra/Mandelbrot-set-graphic-by-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavesabra%2FMandelbrot-set-graphic-by-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavesabra%2FMandelbrot-set-graphic-by-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9e15b2cc76e694ca8171bc28e720e432b455c4a5 [INFO] checking davesabra/Mandelbrot-set-graphic-by-Rust against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavesabra%2FMandelbrot-set-graphic-by-Rust" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/davesabra/Mandelbrot-set-graphic-by-Rust on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/davesabra/Mandelbrot-set-graphic-by-Rust [INFO] finished tweaking git repo https://github.com/davesabra/Mandelbrot-set-graphic-by-Rust [INFO] tweaked toml for git repo https://github.com/davesabra/Mandelbrot-set-graphic-by-Rust written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/davesabra/Mandelbrot-set-graphic-by-Rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam v0.7.1 [INFO] [stderr] Downloaded proc-macro2 v0.4.28 [INFO] [stderr] Downloaded image v0.21.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5c84ee893939e6f0813812acdceba6d1d4077de5e7d0d47c8ea3340a14093b53 [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" "5c84ee893939e6f0813812acdceba6d1d4077de5e7d0d47c8ea3340a14093b53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5c84ee893939e6f0813812acdceba6d1d4077de5e7d0d47c8ea3340a14093b53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c84ee893939e6f0813812acdceba6d1d4077de5e7d0d47c8ea3340a14093b53", kill_on_drop: false }` [INFO] [stdout] 5c84ee893939e6f0813812acdceba6d1d4077de5e7d0d47c8ea3340a14093b53 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c3b3a1b2319bc400301e9c21c2a787070b0ffc65134a1e10fe2c7fbc9b12d4e1 [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" "c3b3a1b2319bc400301e9c21c2a787070b0ffc65134a1e10fe2c7fbc9b12d4e1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.28 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking gif v0.10.1 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking deflate v0.7.19 [INFO] [stderr] Checking num-complex v0.2.1 [INFO] [stderr] Checking rayon-core v1.4.1 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking rayon v1.0.3 [INFO] [stderr] Checking png v0.14.1 [INFO] [stderr] Checking crossbeam v0.7.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Checking num-rational v0.2.1 [INFO] [stderr] Checking jpeg-decoder v0.1.15 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Checking tiff v0.2.2 [INFO] [stderr] Checking image v0.21.1 [INFO] [stderr] Checking mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0599]: no method named `write_fmt` found for struct `Stderr` in the current scope [INFO] [stdout] --> src/main.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | / writeln!( [INFO] [stdout] 141 | | std::io::stderr(), [INFO] [stdout] 142 | | "Usage: mandelbrot FILE PIXELS UPPERLEFT LOWERRIGHT" [INFO] [stdout] 143 | | ) [INFO] [stdout] | |_________^ method not found in `Stderr` [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the trait is in scope [INFO] [stdout] = note: this error originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it: [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Write; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `write_fmt` found for struct `Stderr` in the current scope [INFO] [stdout] --> src/main.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | / writeln!( [INFO] [stdout] 146 | | std::io::stderr(), [INFO] [stdout] 147 | | "Example: {} mandel.png 1000x750 -1.20,0.35 -1,0.20", [INFO] [stdout] 148 | | args[0] [INFO] [stdout] 149 | | ) [INFO] [stdout] | |_________^ method not found in `Stderr` [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the trait is in scope [INFO] [stdout] = note: this error originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it: [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Write; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mandelbrot` due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0599]: no method named `write_fmt` found for struct `Stderr` in the current scope [INFO] [stdout] --> src/main.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | / writeln!( [INFO] [stdout] 141 | | std::io::stderr(), [INFO] [stdout] 142 | | "Usage: mandelbrot FILE PIXELS UPPERLEFT LOWERRIGHT" [INFO] [stdout] 143 | | ) [INFO] [stdout] | |_________^ method not found in `Stderr` [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the trait is in scope [INFO] [stdout] = note: this error originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it: [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Write; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `write_fmt` found for struct `Stderr` in the current scope [INFO] [stdout] --> src/main.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | / writeln!( [INFO] [stdout] 146 | | std::io::stderr(), [INFO] [stdout] 147 | | "Example: {} mandel.png 1000x750 -1.20,0.35 -1,0.20", [INFO] [stdout] 148 | | args[0] [INFO] [stdout] 149 | | ) [INFO] [stdout] | |_________^ method not found in `Stderr` [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the trait is in scope [INFO] [stdout] = note: this error originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it: [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Write; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "c3b3a1b2319bc400301e9c21c2a787070b0ffc65134a1e10fe2c7fbc9b12d4e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3b3a1b2319bc400301e9c21c2a787070b0ffc65134a1e10fe2c7fbc9b12d4e1", kill_on_drop: false }` [INFO] [stdout] c3b3a1b2319bc400301e9c21c2a787070b0ffc65134a1e10fe2c7fbc9b12d4e1