[INFO] fetching crate rstoken 0.0.0...
[INFO] checking rstoken-0.0.0 against beta for pr-78714
[INFO] extracting crate rstoken 0.0.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rstoken 0.0.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rstoken 0.0.0
[INFO] finished tweaking crates.io crate rstoken 0.0.0
[INFO] tweaked toml for crates.io crate rstoken 0.0.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06a27687b747b804e170b141f68ee06116f244c4585fe9747acdf1328cbf7366
[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" "06a27687b747b804e170b141f68ee06116f244c4585fe9747acdf1328cbf7366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06a27687b747b804e170b141f68ee06116f244c4585fe9747acdf1328cbf7366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a27687b747b804e170b141f68ee06116f244c4585fe9747acdf1328cbf7366", kill_on_drop: false }`
[INFO] [stdout] 06a27687b747b804e170b141f68ee06116f244c4585fe9747acdf1328cbf7366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcb542fcb2f6bc225aa8a680edf83d19721632bd814b5b53cdd0dba06a2f9dd8
[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" "dcb542fcb2f6bc225aa8a680edf83d19721632bd814b5b53cdd0dba06a2f9dd8", kill_on_drop: false }`
[INFO] [stderr]     Checking serde-xml-rs v0.3.1
[INFO] [stderr]     Checking rstoken v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/tokens/generate.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     use std::iter::Iterator;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]   --> src/tokens/generate.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     use std::iter::Iterator;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BATCH_MAC_IV`
[INFO] [stdout]  --> src/tokens/crypto/ivs.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / pub const BATCH_MAC_IV: IV = IV([
[INFO] [stdout] 6 | |     0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
[INFO] [stdout] 7 | |     0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
[INFO] [stdout] 8 | | ]);
[INFO] [stdout]   | |___^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BATCH_ENC_IV`
[INFO] [stdout]   --> src/tokens/crypto/ivs.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / pub const BATCH_ENC_IV: IV = IV([
[INFO] [stdout] 11 | |     0x32, 0x43, 0xf6, 0xa8, 0x88, 0x5a, 0x30, 0x8d,
[INFO] [stdout] 12 | |     0x31, 0x31, 0x98, 0xa2, 0xe0, 0x37, 0x07, 0x34
[INFO] [stdout] 13 | | ]);
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TOKEN_MAC_IV`
[INFO] [stdout]   --> src/tokens/crypto/ivs.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / pub const TOKEN_MAC_IV: IV = IV([
[INFO] [stdout] 16 | |     0x1b, 0xb6, 0x7a, 0xe8, 0x58, 0x4c, 0xaa, 0x73,
[INFO] [stdout] 17 | |     0xb2, 0x57, 0x42, 0xd7, 0x07, 0x8b, 0x83, 0xb8
[INFO] [stdout] 18 | | ]);
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Password`
[INFO] [stdout]   --> src/tokens/crypto/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Password(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BATCH_MAC_IV`
[INFO] [stdout]  --> src/tokens/crypto/ivs.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / pub const BATCH_MAC_IV: IV = IV([
[INFO] [stdout] 6 | |     0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
[INFO] [stdout] 7 | |     0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
[INFO] [stdout] 8 | | ]);
[INFO] [stdout]   | |___^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BATCH_ENC_IV`
[INFO] [stdout]   --> src/tokens/crypto/ivs.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / pub const BATCH_ENC_IV: IV = IV([
[INFO] [stdout] 11 | |     0x32, 0x43, 0xf6, 0xa8, 0x88, 0x5a, 0x30, 0x8d,
[INFO] [stdout] 12 | |     0x31, 0x31, 0x98, 0xa2, 0xe0, 0x37, 0x07, 0x34
[INFO] [stdout] 13 | | ]);
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TOKEN_MAC_IV`
[INFO] [stdout]   --> src/tokens/crypto/ivs.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / pub const TOKEN_MAC_IV: IV = IV([
[INFO] [stdout] 16 | |     0x1b, 0xb6, 0x7a, 0xe8, 0x58, 0x4c, 0xaa, 0x73,
[INFO] [stdout] 17 | |     0xb2, 0x57, 0x42, 0xd7, 0x07, 0x8b, 0x83, 0xb8
[INFO] [stdout] 18 | | ]);
[INFO] [stdout]    | |___^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Password`
[INFO] [stdout]   --> src/tokens/crypto/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Password(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "dcb542fcb2f6bc225aa8a680edf83d19721632bd814b5b53cdd0dba06a2f9dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcb542fcb2f6bc225aa8a680edf83d19721632bd814b5b53cdd0dba06a2f9dd8", kill_on_drop: false }`
[INFO] [stdout] dcb542fcb2f6bc225aa8a680edf83d19721632bd814b5b53cdd0dba06a2f9dd8