[INFO] fetching crate gf 0.4.0...
[INFO] testing gf-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate gf 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate gf 0.4.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gf 0.4.0
[INFO] finished tweaking crates.io crate gf 0.4.0
[INFO] tweaked toml for crates.io crate gf 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] e50d23f3ddf2af46b1b95a444bdf18509ea484a9224cadc43bc90c177dabdf06
[INFO] running `Command { std: "docker" "start" "-a" "e50d23f3ddf2af46b1b95a444bdf18509ea484a9224cadc43bc90c177dabdf06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e50d23f3ddf2af46b1b95a444bdf18509ea484a9224cadc43bc90c177dabdf06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50d23f3ddf2af46b1b95a444bdf18509ea484a9224cadc43bc90c177dabdf06", kill_on_drop: false }`
[INFO] [stdout] e50d23f3ddf2af46b1b95a444bdf18509ea484a9224cadc43bc90c177dabdf06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] bd1cd86099e9e25ede12700f90a0579423aefd7300808091e16d95b70af83a33
[INFO] running `Command { std: "docker" "start" "-a" "bd1cd86099e9e25ede12700f90a0579423aefd7300808091e16d95b70af83a33", kill_on_drop: false }`
[INFO] [stderr]    Compiling gf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `RemAssign`, `Rem`
[INFO] [stdout]  --> src/impls.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 |         DivAssign, Mul, MulAssign, Neg, Not, Rem, RemAssign, Sub, SubAssign,
[INFO] [stdout]   |                                              ^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "bd1cd86099e9e25ede12700f90a0579423aefd7300808091e16d95b70af83a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd1cd86099e9e25ede12700f90a0579423aefd7300808091e16d95b70af83a33", kill_on_drop: false }`
[INFO] [stdout] bd1cd86099e9e25ede12700f90a0579423aefd7300808091e16d95b70af83a33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 179456020e28ec82c9fa0793587d66e57d77ba164e2d7bfe67940c4dfb5f3604
[INFO] running `Command { std: "docker" "start" "-a" "179456020e28ec82c9fa0793587d66e57d77ba164e2d7bfe67940c4dfb5f3604", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `RemAssign`, `Rem`
[INFO] [stdout]  --> src/impls.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 |         DivAssign, Mul, MulAssign, Neg, Not, Rem, RemAssign, Sub, SubAssign,
[INFO] [stdout]   |                                              ^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gf v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RemAssign`, `Rem`
[INFO] [stdout]  --> src/impls.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 |         DivAssign, Mul, MulAssign, Neg, Not, Rem, RemAssign, Sub, SubAssign,
[INFO] [stdout]   |                                              ^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "179456020e28ec82c9fa0793587d66e57d77ba164e2d7bfe67940c4dfb5f3604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179456020e28ec82c9fa0793587d66e57d77ba164e2d7bfe67940c4dfb5f3604", kill_on_drop: false }`
[INFO] [stdout] 179456020e28ec82c9fa0793587d66e57d77ba164e2d7bfe67940c4dfb5f3604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e824895f88dabc42d75a0eaeec42e1b1615fba00a78278029b2c273c7e4035d
[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" "1e824895f88dabc42d75a0eaeec42e1b1615fba00a78278029b2c273c7e4035d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `RemAssign`, `Rem`
[INFO] [stderr]  --> src/impls.rs:5:46
[INFO] [stderr]   |
[INFO] [stderr] 5 |         DivAssign, Mul, MulAssign, Neg, Not, Rem, RemAssign, Sub, SubAssign,
[INFO] [stderr]   |                                              ^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RemAssign`, `Rem`
[INFO] [stderr]  --> src/impls.rs:5:46
[INFO] [stderr]   |
[INFO] [stderr] 5 |         DivAssign, Mul, MulAssign, Neg, Not, Rem, RemAssign, Sub, SubAssign,
[INFO] [stderr]   |                                              ^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.37s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gf-88f870d9099f57af
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::add_sub ... ok
[INFO] [stdout] test tests::mul_div ... ok
[INFO] [stdout] test tests::pow ... ok
[INFO] [stdout] test tests::pow2 ... ok
[INFO] [stdout] test tests::conv ... ok
[INFO] [stdout] test tests::pow1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gf
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/lib.rs - GF (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1e824895f88dabc42d75a0eaeec42e1b1615fba00a78278029b2c273c7e4035d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e824895f88dabc42d75a0eaeec42e1b1615fba00a78278029b2c273c7e4035d", kill_on_drop: false }`
[INFO] [stdout] 1e824895f88dabc42d75a0eaeec42e1b1615fba00a78278029b2c273c7e4035d