[INFO] cloning repository https://github.com/jfyuen/rstgc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jfyuen/rstgc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfyuen%2Frstgc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfyuen%2Frstgc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cd057b9c6b7666b99f821501d6db993ee68c179f [INFO] checking jfyuen/rstgc against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjfyuen%2Frstgc" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jfyuen/rstgc on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jfyuen/rstgc [INFO] finished tweaking git repo https://github.com/jfyuen/rstgc [INFO] tweaked toml for git repo https://github.com/jfyuen/rstgc written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/jfyuen/rstgc already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e89276d2a0392e6070155ecdab043eb2f86627add3b945b03a26c5e8624399d7 [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" "e89276d2a0392e6070155ecdab043eb2f86627add3b945b03a26c5e8624399d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e89276d2a0392e6070155ecdab043eb2f86627add3b945b03a26c5e8624399d7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e89276d2a0392e6070155ecdab043eb2f86627add3b945b03a26c5e8624399d7", kill_on_drop: false }` [INFO] [stdout] e89276d2a0392e6070155ecdab043eb2f86627add3b945b03a26c5e8624399d7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 47b815be35a23a242efaabe4f76916da107b971965a7b5405bb29f8c9a81f953 [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" "47b815be35a23a242efaabe4f76916da107b971965a7b5405bb29f8c9a81f953", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.45 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling serde v1.0.91 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Compiling bincode v1.1.4 [INFO] [stderr] Checking term v0.5.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking time v0.1.41 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking isatty v0.1.9 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking slog-term v2.4.0 [INFO] [stderr] Compiling serde_derive v1.0.91 [INFO] [stderr] Checking rstgc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:36:32 [INFO] [stdout] | [INFO] [stdout] 36 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/message.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | mut writer: Box, [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/message.rs:54:21 [INFO] [stdout] | [INFO] [stdout] 54 | mut reader: Box, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:36:32 [INFO] [stdout] | [INFO] [stdout] 36 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/message.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | mut writer: Box, [INFO] [stdout] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/message.rs:54:21 [INFO] [stdout] | [INFO] [stdout] 54 | mut reader: Box, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:30:48 [INFO] [stdout] | [INFO] [stdout] 30 | TgcError::ChanReceiveError(e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:31:39 [INFO] [stdout] | [INFO] [stdout] 31 | TgcError::IOError(e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:32:46 [INFO] [stdout] | [INFO] [stdout] 32 | TgcError::SerializeError(e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:39:48 [INFO] [stdout] | [INFO] [stdout] 39 | TgcError::ChanReceiveError(e) => e.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:40:39 [INFO] [stdout] | [INFO] [stdout] 40 | TgcError::IOError(e) => e.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:41:46 [INFO] [stdout] | [INFO] [stdout] 41 | TgcError::SerializeError(e) => e.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:30:48 [INFO] [stdout] | [INFO] [stdout] 30 | TgcError::ChanReceiveError(e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:31:39 [INFO] [stdout] | [INFO] [stdout] 31 | TgcError::IOError(e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:32:46 [INFO] [stdout] | [INFO] [stdout] 32 | TgcError::SerializeError(e) => e.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:39:48 [INFO] [stdout] | [INFO] [stdout] 39 | TgcError::ChanReceiveError(e) => e.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:40:39 [INFO] [stdout] | [INFO] [stdout] 40 | TgcError::IOError(e) => e.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting [INFO] [stdout] --> src/error.rs:41:46 [INFO] [stdout] | [INFO] [stdout] 41 | TgcError::SerializeError(e) => e.cause(), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:24:13 [INFO] [stdout] | [INFO] [stdout] 24 | let mut stream = stream?; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:24:13 [INFO] [stdout] | [INFO] [stdout] 24 | let mut stream = stream?; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 40.54s [INFO] running `Command { std: "docker" "inspect" "47b815be35a23a242efaabe4f76916da107b971965a7b5405bb29f8c9a81f953", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "47b815be35a23a242efaabe4f76916da107b971965a7b5405bb29f8c9a81f953", kill_on_drop: false }` [INFO] [stdout] 47b815be35a23a242efaabe4f76916da107b971965a7b5405bb29f8c9a81f953