[INFO] cloning repository https://github.com/vvilhonen/AMS-Sketch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vvilhonen/AMS-Sketch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvvilhonen%2FAMS-Sketch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvvilhonen%2FAMS-Sketch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e95335860dbe8224cdef1ece16b1d49b55a972b5
[INFO] testing vvilhonen/AMS-Sketch against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvvilhonen%2FAMS-Sketch" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vvilhonen/AMS-Sketch
[INFO] finished tweaking git repo https://github.com/vvilhonen/AMS-Sketch
[INFO] tweaked toml for git repo https://github.com/vvilhonen/AMS-Sketch written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vvilhonen/AMS-Sketch on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vvilhonen/AMS-Sketch already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded murmurhash3 v0.0.5
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db2886b92a4c00154dc06b4b43f720447be0f9252c2a1df8001898b0deaf6efd
[INFO] running `Command { std: "docker" "start" "-a" "db2886b92a4c00154dc06b4b43f720447be0f9252c2a1df8001898b0deaf6efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db2886b92a4c00154dc06b4b43f720447be0f9252c2a1df8001898b0deaf6efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db2886b92a4c00154dc06b4b43f720447be0f9252c2a1df8001898b0deaf6efd", kill_on_drop: false }`
[INFO] [stdout] db2886b92a4c00154dc06b4b43f720447be0f9252c2a1df8001898b0deaf6efd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 840be1407e43853ce18793c1ce47768a390d007f84d3c72be68a9d9db1167406
[INFO] running `Command { std: "docker" "start" "-a" "840be1407e43853ce18793c1ce47768a390d007f84d3c72be68a9d9db1167406", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling murmurhash3 v0.0.5
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling ams-sketch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/ams_sketch.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let data: [u8; 4] = unsafe { ::std::mem::transmute(item as u32) };
[INFO] [stdout]    |                                  ---------------------^^^^^^^^^^^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "840be1407e43853ce18793c1ce47768a390d007f84d3c72be68a9d9db1167406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840be1407e43853ce18793c1ce47768a390d007f84d3c72be68a9d9db1167406", kill_on_drop: false }`
[INFO] [stdout] 840be1407e43853ce18793c1ce47768a390d007f84d3c72be68a9d9db1167406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 041608a8345207fd5da45bf0eefca5a4b0beef708d18f91a50103b97f7f7a23c
[INFO] running `Command { std: "docker" "start" "-a" "041608a8345207fd5da45bf0eefca5a4b0beef708d18f91a50103b97f7f7a23c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ams-sketch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/ams_sketch.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let data: [u8; 4] = unsafe { ::std::mem::transmute(item as u32) };
[INFO] [stdout]    |                                  ---------------------^^^^^^^^^^^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/ams_sketch.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let data: [u8; 4] = unsafe { ::std::mem::transmute(item as u32) };
[INFO] [stdout]    |                                  ---------------------^^^^^^^^^^^^^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "041608a8345207fd5da45bf0eefca5a4b0beef708d18f91a50103b97f7f7a23c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "041608a8345207fd5da45bf0eefca5a4b0beef708d18f91a50103b97f7f7a23c", kill_on_drop: false }`
[INFO] [stdout] 041608a8345207fd5da45bf0eefca5a4b0beef708d18f91a50103b97f7f7a23c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68c140b74576bb1b37bb4d54b888d0a6361ef5fdcf6129c9c1d02914b3d96d8c
[INFO] running `Command { std: "docker" "start" "-a" "68c140b74576bb1b37bb4d54b888d0a6361ef5fdcf6129c9c1d02914b3d96d8c", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]   --> src/ams_sketch.rs:12:34
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let data: [u8; 4] = unsafe { ::std::mem::transmute(item as u32) };
[INFO] [stderr]    |                                  ---------------------^^^^^^^^^^^^^
[INFO] [stderr]    |                                  |
[INFO] [stderr]    |                                  help: replace this with: `u32::to_ne_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stderr]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ams-sketch` (lib) generated 1 warning (run `cargo fix --lib -p ams-sketch` to apply 1 suggestion)
[INFO] [stderr] warning: `ams-sketch` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ams_sketch-5998d775611c0557)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test ams_sketch::tests::test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- ams_sketch::tests::test stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     ams_sketch::tests::test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68c140b74576bb1b37bb4d54b888d0a6361ef5fdcf6129c9c1d02914b3d96d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c140b74576bb1b37bb4d54b888d0a6361ef5fdcf6129c9c1d02914b3d96d8c", kill_on_drop: false }`
[INFO] [stdout] 68c140b74576bb1b37bb4d54b888d0a6361ef5fdcf6129c9c1d02914b3d96d8c
