[INFO] fetching crate devpng 0.1.2... [INFO] testing devpng-0.1.2 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] extracting crate devpng 0.1.2 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate devpng 0.1.2 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate devpng 0.1.2 [INFO] finished tweaking crates.io crate devpng 0.1.2 [INFO] tweaked toml for crates.io crate devpng 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded devker v0.1.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 605d08b9368c2e4d61269f67a9030921db486e19b8799bc9377766bef27301ea [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" "605d08b9368c2e4d61269f67a9030921db486e19b8799bc9377766bef27301ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "605d08b9368c2e4d61269f67a9030921db486e19b8799bc9377766bef27301ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "605d08b9368c2e4d61269f67a9030921db486e19b8799bc9377766bef27301ea", kill_on_drop: false }` [INFO] [stdout] 605d08b9368c2e4d61269f67a9030921db486e19b8799bc9377766bef27301ea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 108b7dddbacb7bc1b0d3a73478e4235f1bd064b5dfd121845cca75eff274eb99 [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" "108b7dddbacb7bc1b0d3a73478e4235f1bd064b5dfd121845cca75eff274eb99", kill_on_drop: false }` [INFO] [stderr] Compiling devker v0.1.6 [INFO] [stderr] Compiling devpng v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.41s [INFO] running `Command { std: "docker" "inspect" "108b7dddbacb7bc1b0d3a73478e4235f1bd064b5dfd121845cca75eff274eb99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "108b7dddbacb7bc1b0d3a73478e4235f1bd064b5dfd121845cca75eff274eb99", kill_on_drop: false }` [INFO] [stdout] 108b7dddbacb7bc1b0d3a73478e4235f1bd064b5dfd121845cca75eff274eb99 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] 1901578aa414cfda07ebcc08c60431f904ff1a4a36c2c72fb0918d529182cf1d [INFO] running `Command { std: "docker" "start" "-a" "1901578aa414cfda07ebcc08c60431f904ff1a4a36c2c72fb0918d529182cf1d", kill_on_drop: false }` [INFO] [stderr] Compiling devpng v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.83s [INFO] running `Command { std: "docker" "inspect" "1901578aa414cfda07ebcc08c60431f904ff1a4a36c2c72fb0918d529182cf1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1901578aa414cfda07ebcc08c60431f904ff1a4a36c2c72fb0918d529182cf1d", kill_on_drop: false }` [INFO] [stdout] 1901578aa414cfda07ebcc08c60431f904ff1a4a36c2c72fb0918d529182cf1d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", 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] 502f7911decd44e89f0ebb05d1617eb1dab2e952caeec8077316634af1de4799 [INFO] running `Command { std: "docker" "start" "-a" "502f7911decd44e89f0ebb05d1617eb1dab2e952caeec8077316634af1de4799", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/devpng-98eae1b1f8bc913e) [INFO] [stdout] [INFO] [stderr] Doc-tests devpng [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - (line 57) ... FAILED [INFO] [stdout] test src/lib.rs - (line 4) ... FAILED [INFO] [stdout] test src/lib.rs - (line 28) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 57) stdout ---- [INFO] [stdout] error[E0596]: cannot borrow `img` as mutable, as it is not declared as mutable [INFO] [stdout] --> src/lib.rs:71:14 [INFO] [stdout] | [INFO] [stdout] 13 | let img = cache.image(); [INFO] [stdout] | --- help: consider changing this to be mutable: `mut img` [INFO] [stdout] ... [INFO] [stdout] 16 | for x in img.iter_mut() { [INFO] [stdout] | ^^^ cannot borrow as mutable [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0596`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - (line 4) stdout ---- [INFO] [stdout] error[E0596]: cannot borrow `img` as mutable, as it is not declared as mutable [INFO] [stdout] --> src/lib.rs:17:14 [INFO] [stdout] | [INFO] [stdout] 12 | let img = png.image(); [INFO] [stdout] | --- help: consider changing this to be mutable: `mut img` [INFO] [stdout] ... [INFO] [stdout] 15 | for x in img.iter_mut() { [INFO] [stdout] | ^^^ cannot borrow as mutable [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0596`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - (line 28) stdout ---- [INFO] [stdout] Test executable failed (exit code 1). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] Error: "Read-only file system (os error 30)" [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 28) [INFO] [stdout] src/lib.rs - (line 4) [INFO] [stdout] src/lib.rs - (line 57) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "502f7911decd44e89f0ebb05d1617eb1dab2e952caeec8077316634af1de4799", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "502f7911decd44e89f0ebb05d1617eb1dab2e952caeec8077316634af1de4799", kill_on_drop: false }` [INFO] [stdout] 502f7911decd44e89f0ebb05d1617eb1dab2e952caeec8077316634af1de4799