[INFO] fetching crate minecraft-varint 0.2.0...
[INFO] checking minecraft-varint-0.2.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate minecraft-varint 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate minecraft-varint 0.2.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minecraft-varint 0.2.0
[INFO] finished tweaking crates.io crate minecraft-varint 0.2.0
[INFO] tweaked toml for crates.io crate minecraft-varint 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7997db9fbda56d540d56e32f98d7688f4e9fa353d6286f7b541a8312261e5705
[INFO] running `Command { std: "docker" "start" "-a" "7997db9fbda56d540d56e32f98d7688f4e9fa353d6286f7b541a8312261e5705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7997db9fbda56d540d56e32f98d7688f4e9fa353d6286f7b541a8312261e5705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7997db9fbda56d540d56e32f98d7688f4e9fa353d6286f7b541a8312261e5705", kill_on_drop: false }`
[INFO] [stdout] 7997db9fbda56d540d56e32f98d7688f4e9fa353d6286f7b541a8312261e5705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f5ea9d54a18a60c943ca0e383f0f9befd5f1ef71329c60c9bf2db68180b5037
[INFO] running `Command { std: "docker" "start" "-a" "8f5ea9d54a18a60c943ca0e383f0f9befd5f1ef71329c60c9bf2db68180b5037", kill_on_drop: false }`
[INFO] [stderr]     Checking minecraft-varint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `mc_varint`
[INFO] [stdout]  --> benches/rw.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate mc_varint;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_var_i64` found for struct `VarI64Gen` in the current scope
[INFO] [stdout]   --> benches/rw.rs:51:37
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct VarI64Gen {
[INFO] [stdout]    | ---------------- method `read_var_i64` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 51 |         let _ = test::black_box(src.read_var_i64()).unwrap();
[INFO] [stdout]    |                                     ^^^^^^^^^^^^ method not found in `VarI64Gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_var_u64` found for struct `VarI64Gen` in the current scope
[INFO] [stdout]   --> benches/rw.rs:59:37
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct VarI64Gen {
[INFO] [stdout]    | ---------------- method `read_var_u64` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 59 |         let _ = test::black_box(src.read_var_u64()).unwrap();
[INFO] [stdout]    |                                     ^^^^^^^^^^^^ method not found in `VarI64Gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_var_i32` found for struct `VarI32Gen` in the current scope
[INFO] [stdout]   --> benches/rw.rs:67:37
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct VarI32Gen {
[INFO] [stdout]    | ---------------- method `read_var_i32` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 67 |         let _ = test::black_box(src.read_var_i32()).unwrap();
[INFO] [stdout]    |                                     ^^^^^^^^^^^^ method not found in `VarI32Gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_var_u32` found for struct `VarI32Gen` in the current scope
[INFO] [stdout]   --> benches/rw.rs:75:37
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct VarI32Gen {
[INFO] [stdout]    | ---------------- method `read_var_u32` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 75 |         let _ = test::black_box(src.read_var_u32()).unwrap();
[INFO] [stdout]    |                                     ^^^^^^^^^^^^ method not found in `VarI32Gen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_var_i64` found for struct `Blackhole` in the current scope
[INFO] [stdout]   --> benches/rw.rs:95:37
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct Blackhole;
[INFO] [stdout]    | ---------------- method `write_var_i64` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 95 |         let _ = test::black_box(dst.write_var_i64(i64::min_value())).unwrap();
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `write_all` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let _ = test::black_box(dst.write_all(i64::min_value())).unwrap();
[INFO] [stdout]    |                                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_var_u64` found for struct `Blackhole` in the current scope
[INFO] [stdout]    --> benches/rw.rs:103:37
[INFO] [stdout]     |
[INFO] [stdout] 79  | struct Blackhole;
[INFO] [stdout]     | ---------------- method `write_var_u64` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 103 |         let _ = test::black_box(dst.write_var_u64(u64::min_value())).unwrap();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `write_all` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let _ = test::black_box(dst.write_all(u64::min_value())).unwrap();
[INFO] [stdout]     |                                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_var_i32` found for struct `Blackhole` in the current scope
[INFO] [stdout]    --> benches/rw.rs:111:37
[INFO] [stdout]     |
[INFO] [stdout] 79  | struct Blackhole;
[INFO] [stdout]     | ---------------- method `write_var_i32` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 111 |         let _ = test::black_box(dst.write_var_i32(i32::min_value())).unwrap();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `write_all` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let _ = test::black_box(dst.write_all(i32::min_value())).unwrap();
[INFO] [stdout]     |                                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `write_var_u32` found for struct `Blackhole` in the current scope
[INFO] [stdout]    --> benches/rw.rs:119:37
[INFO] [stdout]     |
[INFO] [stdout] 79  | struct Blackhole;
[INFO] [stdout]     | ---------------- method `write_var_u32` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 119 |         let _ = test::black_box(dst.write_var_u32(u32::min_value())).unwrap();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `write_all` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 119 |         let _ = test::black_box(dst.write_all(u32::min_value())).unwrap();
[INFO] [stdout]     |                                     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minecraft-varint` (bench "rw") due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "8f5ea9d54a18a60c943ca0e383f0f9befd5f1ef71329c60c9bf2db68180b5037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5ea9d54a18a60c943ca0e383f0f9befd5f1ef71329c60c9bf2db68180b5037", kill_on_drop: false }`
[INFO] [stdout] 8f5ea9d54a18a60c943ca0e383f0f9befd5f1ef71329c60c9bf2db68180b5037
