[INFO] fetching crate byteio 0.2.3...
[INFO] testing byteio-0.2.3 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate byteio 0.2.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate byteio 0.2.3 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 byteio 0.2.3
[INFO] finished tweaking crates.io crate byteio 0.2.3
[INFO] tweaked toml for crates.io crate byteio 0.2.3 written to /workspace/builds/worker-1/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]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck_macros v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2b3175db241ef6391c15460072e939d810375a024ce0a0020c039ae96b7711ef
[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" "2b3175db241ef6391c15460072e939d810375a024ce0a0020c039ae96b7711ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b3175db241ef6391c15460072e939d810375a024ce0a0020c039ae96b7711ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b3175db241ef6391c15460072e939d810375a024ce0a0020c039ae96b7711ef", kill_on_drop: false }`
[INFO] [stdout] 2b3175db241ef6391c15460072e939d810375a024ce0a0020c039ae96b7711ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0fc25d51772ddddb5bd6048cf59be7a8f644e7f0462afdfea7b752e0d376f27
[INFO] running `Command { std: "docker" "start" "-a" "e0fc25d51772ddddb5bd6048cf59be7a8f644e7f0462afdfea7b752e0d376f27", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteio v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "e0fc25d51772ddddb5bd6048cf59be7a8f644e7f0462afdfea7b752e0d376f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0fc25d51772ddddb5bd6048cf59be7a8f644e7f0462afdfea7b752e0d376f27", kill_on_drop: false }`
[INFO] [stdout] e0fc25d51772ddddb5bd6048cf59be7a8f644e7f0462afdfea7b752e0d376f27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] a92965c6cbd4064c2492b656e7c9e8e8329c4248ff1963aa83ff5d538afcc145
[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" "a92965c6cbd4064c2492b656e7c9e8e8329c4248ff1963aa83ff5d538afcc145", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling byteio v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.80s
[INFO] running `Command { std: "docker" "inspect" "a92965c6cbd4064c2492b656e7c9e8e8329c4248ff1963aa83ff5d538afcc145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a92965c6cbd4064c2492b656e7c9e8e8329c4248ff1963aa83ff5d538afcc145", kill_on_drop: false }`
[INFO] [stdout] a92965c6cbd4064c2492b656e7c9e8e8329c4248ff1963aa83ff5d538afcc145
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] aeb9b4799743f4ff7944a938ab3827f2468e5a8bbcff43e647430e1fe5f78ff6
[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" "aeb9b4799743f4ff7944a938ab3827f2468e5a8bbcff43e647430e1fe5f78ff6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/byteio-1c216ab50cbaea22)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::display_error_end_of_stream ... ok
[INFO] [stdout] test test::io_error_from_error_end_of_stream ... ok
[INFO] [stdout] test test::display_error_nonexhaustive ... ok
[INFO] [stdout] test test::io_error_from_error_nonexhaustive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests byteio
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/lib.rs - Writer<W>::num_bytes_written (line 1634) ... ok
[INFO] [stdout] test src/lib.rs - Reader::new (line 881) ... ok
[INFO] [stdout] test src/lib.rs - ReadBytes (line 250) ... ok
[INFO] [stdout] test src/lib.rs - WriteBytesExt (line 1103) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] test src/lib.rs - Reader::num_bytes_read (line 898) ... ok
[INFO] [stdout] test src/lib.rs - ReadBytesExt (line 385) ... ok
[INFO] [stdout] test src/lib.rs - Reader (line 849) ... ok
[INFO] [stdout] test src/lib.rs - ReadBytes (line 268) ... ok
[INFO] [stdout] test src/lib.rs - WriteBytes (line 992) ... ok
[INFO] [stdout] test src/lib.rs - Result (line 138) ... ok
[INFO] [stdout] test src/lib.rs - Error::EndOfStream (line 184) ... ok
[INFO] [stdout] test src/lib.rs - Writer<W>::new (line 1617) ... ok
[INFO] [stdout] test src/lib.rs - Writer<W>::into_inner (line 1652) ... ok
[INFO] [stdout] test src/lib.rs - Writer (line 1581) ... ok
[INFO] [stdout] test src/lib.rs - Reader::into_inner (line 918) ... ok
[INFO] [stdout] test src/lib.rs - prelude (line 115) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aeb9b4799743f4ff7944a938ab3827f2468e5a8bbcff43e647430e1fe5f78ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb9b4799743f4ff7944a938ab3827f2468e5a8bbcff43e647430e1fe5f78ff6", kill_on_drop: false }`
[INFO] [stdout] aeb9b4799743f4ff7944a938ab3827f2468e5a8bbcff43e647430e1fe5f78ff6